ML14364A266

License Renewal Application Appendix E Applicant'S Environmental Report - Operating License Renewal Stage Amendment 1. Part 2 of 4

ML14364A266
Person / Time
Site:	Diablo Canyon
Issue date:	12/22/2014
From:	Pacific Gas & Electric Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML14364A259	List: DCL-14-103, License Renewal Application Appendix E Applicant'S Environmental Report - Operating License Renewal Stage Amendment 1. Part 4 of 4 ML14364A261 ML14364A262 ML14364A264 ML14364A265 ML14364A266 ML14364A269
References
DCL-14-103, FOIA/PA-2016-0438
Download: ML14364A266 (74)

Text

APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 2.6 DEMOGRAPHY

2.6.1 REGIONAL

DEMOGRAPHY The Generic Environmental Impact Statement for License Renewal of Nuclear Plants (GELS) presents a population characterization method that is based on two factors: "sparseness" and "proximity" (Reference 77). "Sparseness" measures population density and city size within 20 miles of a site and categorizes the demographic information as follows: Demographic Categories Based on Sparseness Category Most sparse 1. Less than 40 persons per square mile and no community with 25,000 more persons within 20 miles 2. 40 to 60 persons per square mile and no community with 25,000 or more persons within 20 miles 3. 60 to 120 persons per square mile or less than 60 persons per square mile with at least one community with 25,000 or more persons within 20 miles Least sparse 4. Greater than or equal to 120 persons per square mile within 20 miles Source: Reference 77"Proximity" measures population density and city size within 50 miles and categorizes the demographic information as follows: Demographic Categories Based on Proximity Category Not in close proximity

1. No city with 100,000 or more persons and less than 50 persons per square mile within 50 miles 2. No city with 100,000 or more persons and between 50 and 190 persons per square mile within 50 miles 3. One or more cities with 100,000 or more persons and less than 190 persons per square mile within 50 miles In close proximity

4. Greater than or equal to 190 persons per square mile within 50 miles Source: Reference 77 Diablo Canyon Power Plant License Renewal Application Page 2.6-1 APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I The GElS then uses the following matrix to rank the population category as low, medium, or high.GElS Sparseness and Proximity Matrix Proximity 1 2 3 4 U)0. 1 1.3 1.4 0 2 2.2 2.3 2.4 Z! 3 3.1 3.2 3.3 C- 4 4.1 4.2 SU Source: Reference 77 I Low Population Area Medium Population Area High Population Area PG&E used 2000-2010 census data from the U.S. Census Bureau

74) and the estimates prepared by California Department of Finan ..to determine most demographic characteristics in the DCPP vicinity.

The calculations determined that 119,840165,059 people live within 20 miles of DCPP, producing a population density of 43-352 persons per square mile. Applying the GElS sparseness measures identifies DCPP as falling into sparse Category 4 (greater than or equal to 120 persons per square mile within 20 miles).To calculate the proximity measure, PG&E determined that 424,013471,981 people live within 50 miles of DCPP, which equates to a population density of 82-119 persons per square mile. Applying the GElS proximity measures, DCPP is classified as Category 2 (No city with 100,000 or more persons and between 50 and 190 persons per square mile within 50 miles). Therefore, according to the GElS sparseness and proximity matrix, DCPP ranks of sparseness, Category 34, and proximity, Category 2, result in the conclusion that DCPP is located in a medium population area.* f'%

• IP% I i ne nearest area is RrFarFa iapprOXImately 85 mlles souwtheast), with a 2000 population of 02,325 74)- The population distribution within a 50-mile radius of DCPP is generally considered rural. Minor exceptions to this are Atascadero (20-21 miles north-northeast), San Luis Obispo (12 miles east-northeast), Five Cities encompassing Arroyo Grande, Grover Beach, Pismo Beach, Oceano, and Shell Beach (15 miles southeast) and Santa Maria (30-29 miles southeast) where the 2000-2010 populations were 3-,25628,310, 40,54145,119, 46-,4245,349, and 51722899,553, respectively (Figure 2.1-1). The municipality nearest the DCPP is the City of San Luis Obispo (12 miles east-northeast) with a 2000-2010 population of 40,54445,119 (Reference 74142).Diablo Canyon Power Plant License Renewal Application Page 2.6-2 APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I San Luis Obispo County and parts of Santa Barbara County are located within 50 miles of DCPP. The Metropolitan Statistical Areas (MSA) are San Luis Obispo, Atascadero, Arroyo Grande, and Paso Robles of San Luis Obispo County and Santa Maria andSanta Barbara of Santa Barbara County (Reference 7-4143).From 1990 to 2000, the population of the San Luis Obispo-Paso Robles-Arroyo Grande MSA deaireased-increased from 246681-to-21 7,162 to 246,681, an of .Q9613.6 percent (Reference 74). From 2000 to 2010, the population of the San Luis Obispo-Paso Robles-Arroyo Grande MSA increased from 246,681 to 269,637, an increase of 9.3 percent (Reference 143). From 2000 to 2010, theThe population of Santa Maria increased from 6g,284 to 77,423 to 99,553, an increase of 263228 6 percent (Reference 144). The population of Lmp.. in..e.sed from 37-,61 to 11,103, an inriease Of 9.17 percent.Because more than 86 percent of employees at DCPP reside in San Luis Obispo County and the City of Santa Maria of Santa Barbara County, San Luis Obispo County and northern Santa Barbara County ha are the counties with the greatest potential to be socioeconomically affected by license renewal at-of DCPP. Table 2.6-1 shows population estimates and decennial growth rates for these two counties.

Values for the State of California are provided for comparison.

Over the last several decades, San Luis Obispo and Santa Barbara Counties have shown fluctuating pesitive-growth rates. From both 1970 to 1980 and from 1980 to 1990, San Luis Obispo and Santa Barbara Counties' growth rates were all-relatively large. From 1990 to 2000, the San Luis Obispo County population growth rate was 13.59 percent, while the Santa Barbara County population increased by 8.08 percent.From 2000 to 2010, the San Luis Obispo County population growth rate was 9.3 percent, while Santa Barbara County population increased by 6.1 percent (Reference 144).2.6.2 MINORITY AND LOW-INCOME POPULATIONS NRC's Policy Statement on the Treatment of Environmental Justice Matters in NRC Regulatory and Licensing Actions (Reference

76) and Nuclear Reactor Regulation's (NRR) Office Instruction LIC-203 (Reference

72) conclude that a 50-mile radius could reasonably be expected to contain potential environmental impact sites and that the state was the appropriate geographic area for comparative analysis.

PG&E has adopted this approach for identifying the DCPP minority and low-income populations that could be affected by DCPP operations.

.... .... se I.. S. Census Bureau, 2007-2011 American Community Survey Official 5-Year Estimates was-were used to determine the minority and low-income characteristics by block group. PG&E included all block Diablo Canyon Power Plant Page 2.6-3 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I groups if any part of their area lay within 50 miles of DCPP 4.The 50-mile radius includes 294-297 block groups (Table 2.6-2).2.6.2.1 Minority Populations The NRC Procedural Guidance for Preparing Environmental Assessments and Considering Environmental Issues defines a "minority" population as: American Indian or Alaskan Native; Asian; Native Hawaiian or other Pacific Islander; Black orAfrican American Races, and Hispanic Ethnicity (Reference 75). Additionally, NRC's guidance requires that (1) all other single minorities are to be treated as one population and analyzed, and (2) the aggregate of all minority populations are to be treated as one population and analyzed.

The guidance indicates that a minority population exists if either of the following two conditions exists: " The minority population percentage in the census-block group or environmental impact site-area exceeds 50 percent." The minority population percentage of-in the block group environmental impact area is significantly greater (typically at least 20 percentage points) than the minority population percentage in the geographic area chosen for comparative analysis.For each of the 294-297 block groups within the 50-mile radius, PG&E calculated the percent of the block group's population represented by each minority.

In determining the aggregate minority populations, everyone except persons who identified themselves as White, Not Hispanic or Latino were considered a minority (Reference 145). If any block group minority percentage exceeded 50 percent, then the block group was identified as containing a minority population.

DCPP selected the entire State of California as the geographic area for comparative analysis, and calculated the percentages of each minority category in the State. If any block group percentage exceeded the corresponding State percentage by more than 20 percent, then a minority population was determined to exist.2007-2011 U.S. Census Bureau, American Community Survey EstimatesGensus 2000 data for California characterizes 61.846.7 percent of the population White, 6-46.1 percent Black orAfrican American, 40.813. 1 percent Asian, 040.4 percent Native Hawaiian/Pacific Islander, "-50.8 percent American Indian/Alaskan Native, Q2.437.2 percent Hispanic orLatino, .-213.9 percent Other, 243.9 percent multi-racial, and 53-59.3 percent aggregate of minority races.4 Archimp u sep, data fro4m the I1.CGonsis Bueau. This data contains all .orrectional nprisns, jails, A de ento eters, Or halfway houses (counted at the institution).

The GCalifornia Men's Colony, lonatod neoah ot San Iu.is Obispo, is included on the Aggegate M .group a i shown in Figure 2.6 1.Diablo Canyon Power Plant Page 2.6-4 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 Table 2.6-2 presents the numbers of block groups in each county in the 50-mile radius that exceed the threshold for minority populations.

Figures 2.6-1,-and 2.6-2, 2.6-4, and 2.6-5 locate the minority block groups within the 50-mile radius.Based on the "more than 20 percent" or the "exceeds 50 percent" criteria, 2-4 of the following minority populations exist in the geographic area:* American Indian or Alaskan Native;" Asian;" Native Hawaiian or Pacific Islander;" Black orAfrican American;* Hispanic or Latino* All Other Single Minorities;" Multi-Racial Minorities; or" Aggregate of Minorities.

Based on the "more than 20 percent" or the "exceeds 50 percent" criterion:

• T-he-Aggregate of M'erity Ra.es Minorities populations exist in 65-90 block groups (Table 2.6-2). Figure 2.6-1 displays the locations of these block groups." Th.e-Hispanic

..thn..ty or Latino populations exist in 52-71 block groups (Table 2.6-2). Figure 2.6-2 displays the locations of these block groups." All Other Single Minorities populations exist in 7 block groups (Table 2.6-2).Figure 2.6-4 displays the locations of these block groups.* Black or African American populations exist in 2 block groups (Table 2.6-2).Figure 2.6-5 displays the locations of these block groups.Overall, minorities appear to be underrepresended in the assessment area compared to the comparative analysis area, the state of California.

2.6.2.2 Low-Income Populations NRC procedural guidance defines low-income population based on statistical poverty thresholds either of the following two conditions is met:* The low-income population percentage in the Gensus-block group or the environmental impact site-area exceeds 50 percent." The low-income population percenta epe..entage of households beloW the poverty-le in an block group orenvironmental impact area is significantly greater (typically that least 20 percentage points) than the low-income population percentage in the geographic area chosen for comparative analysis.Diablo Canyon Power Plant Page 2.6-5 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 Based on the "more than 20 percent" criterion or the "exceeds 50 percent", 42-23 block groups contain a low-income population (RefereRGe.74).

All blG roup. are in I.,Santa Barbara County- .Table 2.6-2 identifies the low-income block groups in the region of interest.

Figure 2.6-3 locates the low-income block groups.The San Luis Obispo County Iabor mnarket shows an average family incomne for 2000 at$43,149. For, 2001, the county unemployment Fate was at 3.0 p....nt. The 2000 US Census Data reports the median household incomne in 2000 at $11,319, which is below the 2000 California median household incomne of $16,199. For 2006 2008, the US Census Bureau reports the San Luis Obispo Count" mnedian household income at$57,722, w.Ahich is below the California mnedian household fincomne Of $61,151 (Refer~eRnee131).

U. S. Census Bureau, 2007-2011 American Community Survey official 5-year estimates report the average household income for San Luis Obispo County at$77,132, which is below the California aver-age household income of $85,148. The same survey reports the median San Luis Obispo County household income at $58,630 which is below the California median household income at $61,632. For 2011, the county unemployment rate was at 8. 1 percent. (Reference 146)2.6.3 TRANSIENT POPULATION In addition to the resident population presented in the tables and population distribution charts, there is a seasonal influx of vacation and weekend visitors within a 50-mile radius, especially during the summer months. The influx is heaviest to the south along the coast from Avila Beach to south of Oceano.During August, the month of heaviest influx, the maximum overnight transient population in motels and state parks in this area is approximately 100,000 persons.However, there are no significant seasonal Or diurnal shifts in pqpulation Or population distribution within the low population Zone (LPZI).Table 2.6-3 lists transient population for recreation areas within 50 miles of the site for the periods of record listed. However, there are no significant seasonal or diurnal shifts in population or population distribution within the low population zone (LPZ). Within the LPZ, the maxim um-recorded number of persons at any single time is estimated to be 5,000. This figure is provided by the State Department of Parks and Recreation and corresponds to the maximum daytime use of Montana de Oro State Park. Overnight use is considerably less, with an estimated maximum of 400. Evacuation of these numbers of persons from the park in the event of a release of radioactive material could be accomplished as noted in Chapter 15 of the DCPP FSAR (Reference 2).In addition to the seasonal influx of vacation and weekend visitors, the San Luis Obispo and Santa Barbara County transient populations also includes migrant farm workers.Migrant farm labor was reviewed using the U.S. Department of Agriculture's National Agricultural Statistics Service (NASS) data for 2r07n2012 (Reference 132). Actual migrant worker numbers are not directly reported; however, county level data on hired farm labor are available.

NASS reported 46Depa9f0t135 of 1,040 farms hired migrant Diablo Canyon Power Plant Page 2.6-6 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I labor in San Luis Obispo County, and 81-24 farms, hiring only contract labor, hired migrants.

NASS reported 81 of 92644o-ef-776 farms hired migrant labor in Santa Barbara County, and fJ5-5 farms, hiring only contract labor, hired migrants.(Reference 132)A total of 0-,47510,669 hired workers were reported in San Luis Obispo County, of which 4-8 0 5 5 , 9 6 5 were reported to work less than 150 days per year. In Santa Barbara County, a total of 21,76822,333 hired workers were reported, of which 40,49011,295 were reported to work less than 150 days per year. (Reference 132)Diablo Canyon Power Plant License Renewal Application Page 2.6-7 APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 2.7 TAXES PG&E pays annual property taxes to San Luis Obispo County based on the value of DCPP. The current tax revenues represent a substantial contribution to the local economy and are expected to continue to benefit the local population by helping to fund the local government and support necessary improvements to infrastructure.

For fiscal year 2-008-092013-14, the DCPP property tax payment to San Luis Obispo County was approximately

$22.325.7 million (Reference 83147). San Luis Obispo County is expected to generate $425-432 million for fiscal year 2008-092013-14 based on the current taxable value (Reference 82147). For the 2010-11 fiscal year, 53.5 Between 48.4 aRnd 48.9 percent of the 2007 08 and 2008 09 DCPP property tax payment has-was been FeGeived-byallocated to-4he county school services, county community college, and county Unified School Districts (References 81 -ad 82148).For fiscal years 2004-05 through 2008-092013-14, DCPP's property taxes represented 5.6 to 6.6 percent of San Luis Obispo County's total property tax revenues (Table 2.7-1).The annual property taxes on DCPP are expected to remain relatively constant through the license renewal period. The State of California initiated deregulation of utilities in 1995. However, due to fluctuations in wholesales prices and numerous other issues, the California Public Utilities Commission suspended the deregulation effort in 2001.Should deregulation ever be reenacted in California, this could affect utilities' tax payments to counties.

However, any changes to DCPP property tax rates due to deregulation would be independent of license renewal.Diablo Canyon Power Plant Page 2.7-1 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 2.8 LAND USE PLANNING This section focuses on San Luis Obispo County and Santa Barbara County because the majority of the permanent DCPP workforce lives in these two counties (see Section 3.4) and because DCPP pays property taxes in San Luis Obispo County.As described in Section 2.6, over the last several decades, San Luis Obispo and Santa Barbara Counties have experienced fluctuating positive growth rates. From both 497-0 1980 to 1-980-1990 and from 1980-1990 to 19902000, San Luis Obispo and Santa Barbara Counties' growth rates were relatively large. From 1-990-2000 to 20002010, the San Luis Obispo County population growth rate was 13.599.3 percent, while Santa Barbara County population increased by 90896.1 percent (References 87 and8 144).As shown in Table 2.8-1, over the same period, 1990-2000 to 20002010, the number of housing units in San Luis Obispo County increased by 4-1-414.7 percent, and the number of housing units in Santa Barbara County increased by 3-7.0 percent, while the total number of units in the state increased by 4"012.0 percent. Median home values increased

7.3 percent

in San Luis Obispo County, while values increased 14.9 percent in Santa Barbara County. The vacancy in San Luis Obispo and Santa Barbara Counties fetl-increased significantly from 4990-2000 to 20002010.

Santa Barbara County had the highest change in vacancy of approximately 24-870.9 percent in 2000-2010 (References 89-aRd 90 and 144)For 2000 to 2050, the California Department of Finance projects the population of San Luis Obispo County to increase by 32.4 percent, while the Santa Barbara County population to increase by 25.3 percent (Reference 73).Both San Luis Obispo County and Santa Barbara County use comprehensive land use plans and zoning and subdivision regulations to guide development.

2.8.1 EXISTING

LAND USE TRENDS San Luis Obispo County covers 3,616 square miles of total area; 3,304 square miles is land and 311 square miles is water. Farming is a significant land use in the county (Figure 2.8-1). Land in the DCPP immediate vicinity is used for agriculture

& livestock grazing (Reference 86).Land use planning in San Luis Obispo County is guided by the Department of Planning and Building.

The Agency has developed a land use plan, the Comprehensive Plan for San Luis Obispo County, to assess current land use trends and guide future land use decision-making.

As shown in Table 2.8-1, there are approximately 102,275 homes sites within San Luis Obispo County (Reference 88).Santa Barbara County covers 3,789 square miles of total area; 2,737 square miles is land and 1,052 square miles is water. Land use planning in Santa Barbara County is guided by the Department of Planning and Development.

The Agency has developed a Diablo Canyon Power Plant Page 2.8-1 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 land use plan, the Comprehensive Plan for Santa Barbara County, to assess current land use trends and guide future land use decision-making.

As shown in Table 2.8-1, there are approximately 142,901 homes sites within Santa Barbara County (Reference 88).2.8.2 FUTURE LAND USE TRENDS The San Luis Obispo County planning goals (Reference

84) are as follows: " To maintain a high quality of life, sustain natural resources, and protect agricultural lands and rural character.

• To provide livable communities through plans that are responsive to local needs and vision.* To encourage excellence in building design, cohesive and pedestrian oriented layouts, and streetscape improvements that help stimulate economic vitality and enhance downtown charm.The Santa Barbara County planning goals (Reference

85) are as follows: " To develop, promote and implement plans, policies and public improvements which enhance the quality of life for Santa Barbara County residents." To protect natural resources and promote sound long term economic development, while recognizing the differing needs and values of each of the County's unique communities and diverse rural areas.Diablo Canyon Power Plant License Renewal Application Page 2.8-2 APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 2.9 SOCIAL SERVICES AND PUBLIC FACILITIES

2.9.1 PUBLIC

WATER SUPPLY DCPP is located in San Luis Obispo County, and the majority of site employees also reside within the County. Therefore, the discussion of public water supply systems will be limited to San Luis Obispo County.The City of San Luis Obispo has adopted a multi-source water supply strategy and obtains water from five sources: Salinas Reservior (Santa Margarita Lake), Whale Rock Reservior, Nacimiento Reservoir, ground water, and recycled water. Potable water for the city Of San Luis Obispo is obtained pirincipally from Salinas Reservoir-is located approximately 23 miles east-northeast of the DCPP site,- Whale Rock Reservoir is on Old Creek, 17 miles north of the site, and Gherer Nacimiento Reservoir; is located much further north in the northern portion of the county. approximately 13 Miles of the site, are al.o used. A few small reservoirs are used in connection with the San Luis Obispo water system and are located approximately 18 miles northeast of the site. A reservoir in Lopez Canyon is 20 miles east of the site. Water is also imported into San Luis Obispo County from the California Water Project (Table 2.9-1). Smaller towns in the region of San Luis Obispo depend on wells for domestic water.There are two public water supply groundwater basins within 10 miles of the DCPP site.Avila Beach County Water and Sewer DistrictCommunity Services District, Avila Valley Mutual Water Company, and the San Miguelito Mutual Water provide water to the Avila Beach and Avila Valley area.The licensees to the north and south of the DCPP site capture surface water from small intermittent streams and springs for minimal domestic and stockwater use. speifiGally-one resident approximately

1.5 mniles

nreth of the plant site maintains an artisn spring that supplies domestic water to the

.PG&E and its grazing licensee north of the DCPP site capture water from springs in Crowbar Canyon, 1 mile north of the DCPP site, and from Diablo Creek. PG&E's grazing licensee south of the DCPP captures water from streams and springs between Pecho Canyon and Rattlesnake Canyon for livestock and low volume drip irrigation.

A seawater reverse osmosis desalinization facility was installed at the DCPP industrial site in 1985, and has been in continuous operation since then. As discussed in Section 3.1.2, it provides the majority of freshwater for plant primary and secondary systems makeup, fire protection system source water, and plant domestic water (including potable water) supply.2.9.2 TRANSPORTATION The existing roadway system within the DCPP property consists of a single private two-lane paved roadway (Diablo Canyon Road) that begins at Avila Beach Drive (approximately 6.75 miles from the plant). This roadway's secured entry prevents public Diablo Canyon Power Plant Page 2.9-1 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I traffic from entering the site and using the road. This primary access road accommodates the current DCPP employee population during routine vehicle commute into and out of the industrial plant site. Immediately after leaving the access point, the primary roadway crosses east of San Luis Hill before continuing along a route parallel to the coastline near the base of the Irish Hills (References 86 and 91).The primary road remains paved north of the power plant for a short distance and then connects with an unpaved road, which continues to the northerly PG&E boundary into Montana De Oro State Park. There is a secured gate across the road at this boundary.There are several other unpaved roads on the property.

These unpaved roads, however, do not provide primary access for the majority of DCPP employees, and are used mainly by grazing licensees.

DCPP is accessed via the Avila Beach area. Only two routes connect to Highway 101 interchanges:

Avila Beach Drive and San Luis Bay Drive. These two routes, west of the freeway, join into a single roadway leading to Avila Beach and the Harford Pier. Other roadways in the study area are generally classified as collectors or minor roadways.Employees traveling from either south or north will mostly use Highway 101 to reach either Avila Beach Drive or San Luis Bay Drive to access DCPP.These routes are shown in Figure 2.9-1." Avila Beach Drive. Avila Beach Drive is a winding 4-1/2 mile long two-lane roadway from U.S. Highway 101 to its terminus at Port San Luis. East of Cave Landing Road, Avila Beach Drive maintains minimal shoulders as the roadway width is constrained on the south by steep rocky slopes and on the north by the parallel San Luis Obispo Creek. A short section of Avila Beach Drive was widened to install a left turn bay for eastbound vehicles turning north on San Luis Bay Drive.Additional left turn bays exist on the segment of Avila Beach Drive at Cave Landing Road and Ontario Road. West of Cave Landing Road, Avila Beach Drive maintains left-turn pockets at all intersecting collector roadways and generally accommodates summer peak parking demands along both shoulders." San Luis Bay Drive. San Luis Bay Drive begins just east of U.S. Highway 101 and terminates with an active traffic-light controlled intersection at Avila Beach Drive.The arterial roadway is generally used by trips originating or terminating north of Avila Beach, primarily in San Luis Obispo. Shoulders are provided along San Luis Bay Drive that are not wide enough to allow for parking." Other Collector Roadways.

Collector roadways in the study area include Front Street, San Luis Street, San Miguel Street, Palisades Road, Cave Landing Road, See Canyon Road, and Monte Road. Front, San Luis, and San Miguel Streets are located in central Avila Beach. Front Street is located between the beach on the south and commercial shops to the north, beginning at Avila Beach Drive and terminating at the Unocal Pump Station entrance.

San Luis Street and San Miguel Diablo Canyon Power Plant Page 2.9-2 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 Street provide access from Avila Beach Drive to the commercial and parking facilities at Avila Beach.In determining the significance levels of transportation impacts for license renewal, the NRC uses the Transportation Research Board's Level of Service (LOS) definitions (Reference 77). LOS is a quantitative measure describing operational conditions within a traffic stream and their perception by motorists.

Table 2.9-2 lists the current and future traffic conditions and LOS for the vicinity of DCPP.2.9.3 EDUCATION The state of California is divided into numerous school districts.

San Luis Obispo County, where DCPP is located, has 43-12 school districts and 83-87 public schools.Santa Barbara County has 25-21 school districts and 42,5-123 public schools. Table 2.9-3 displays current (2011-2012 school year) San Luis Obispo County school district statistics, including the number of schools, number of students, and the student-to-teacher ratio.Diablo Canyon Power Plant License Renewal Application Page 2.9-3 APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 2.10 METEOROLOGY AND AIR QUALITY The DCPP site is adjacent to the Pacific Ocean in San Luis Obispo County, California, which is part of the South Central Coast Intrastate Air Quality Control Region (40 CFR 81.166).The climate of the area is typical of the central California coastal region and is characterized by small diurnal and seasonal temperature variations and minimal summer precipitation.

The prevailing wind direction is from the northwest, and the annual average wind speed is about 10 mph. In the dry season, which extends from May through September, the Pacific high-pressure area is located off the California coast, and the Pacific storm track is located far to the north. Moderate to strong sea breezes are common during the afternoon hours of this season while at night, weak offshore drainage winds (land breezes) are prevalent.

There is a high frequency of fog and low stratus clouds during the dry season, associated with a strong low-level temperature inversion (Reference 2).The mean height of the inversion base is approximately 1,100 ft. During the wet season, extending from November through March, the Pacific high-pressure area moves southward and weakens in intensity, allowing storms to move into and across the state. More than 80 percent of the annual rainfall occurs during this 5-month period.Middle and high clouds occur mainly with winter storm activity, and strong winds may be associated with the arrival and passage of storm systems. April and October are considered transitional months separating the two seasons (Reference 2).The coastal mountains that extend in a general northwest-to-southeast direction along the coastline affect the general circulation patterns.

The wind direction in many areas is more likely a result of the local terrain than it is of the prevailing circulation.

This range of mountains is indented by numerous canyons and valleys, each of which has its own land-sea breeze regime. As the air flows along this barrier, it is dispersed inland by the valleys and canyons that indent the coastal range. Once the air enters these valleys and canyons, it is controlled by the local terrain features.In areas where there are no breaks in the coastal range, the magnitude of the wind speed is increased and the variation in the wind direction decreases as the air is forced.along the barrier. However, because of the irregular terrain profile and increased mechanical turbulence due to the rough terrain, vertical mixing and lateral meandering under the inversion are enhanced.

Therefore, emissions injected into the coastal regime are transported and dispersed by a complex array of land-sea breeze regimes that lead to rapid dispersion in both the vertical and horizontal planes.The annual mean number of days with severe weather conditions, such as tornadoes and ice storms at west coast sites, is zero. Thunderstorms and hail are also rare phenomena, the average occurrence being less than 3 days per year. The maximum recorded precipitation in the San Luis Obispo region is 3.28 inches in 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> at the Diablo Canyon Power Plant Page 2.10-1 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 DCPP site, and 5.98 inches in 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at San Luis Obispo. The 24-hour maximum and the 1-hour maximum occurred on March 4, 1978 (Reference 2).The maximum recorded annual precipitation at San Luis Obispo was 54.53 inches during 1969. The average annual precipitation at San Luis Obispo is 21.53 inches.Rainfall recorded at the DCPP facility for the 10-year period July 1, 1997 through June, 30, 2007 averaged 21.46 inches. There are no fastest mile wind speed records in the general area of DCPP; surface peak gusts at 46 mph have been reported at Santa Maria, California, and peak gusts of 56 mph have been recorded at the 250-ft level at the DCPP site.The current onsite meteorological monitoring system supporting DCPP operations will serve as the onsite meteorological measurement program for the period of extended operation.

The system consists of two independent subsystems that measure meteorological conditions and process the information into useable data. The measurement subsystems consist of a primary meteorological tower and a backup meteorological tower. The program has been designed and continually updated to conform with Regulatory Guide 1.23, Revision 0 (Reference 97).A supplemental meteorological measurement system is also located in the vicinity of DCPP. The supplemental system consists of two Doppler acoustic sounders and six tower sites. Data from the supplemental system are used for emergency response purposes to access the location and movement of any radioactive plume.Under the Clean Air Act, the U.S. Environmental Protection Agency (EPA) has established National Ambient Air Quality Standards (NAAQS), which specify maximum concentrations for carbon monoxide (CO), particulate matter with aerodynamic diameters of 10 microns or less (PMio), particulate matter with aerodynamic diameters of 2.5 microns or less (PM 2.5), ozone, sulfur dioxide (SO 2), lead, and nitrogen dioxide (NO 2). Areas of the United States having air quality as good as or better than the NAAQS are designated by EPA as attainment areas. Areas having air quality that is worse than the NAAQS are designated by EPA as non-attainment areas. Those areas that were previously designated nonattainment and subsequently redesignated to attainment due to meeting the NAAQS are maintenance areas. States with maintenance areas are required to develop an air quality maintenance plan as an element of the State Implementation Plan.A summary of the attainment status for SLO County is provided in Table 2.10-1.Ambient air quality in the County is generally good (i.e., within applicable ambient air quality standards), with the exception of ozone (03) and PMlo.Meteorology information, as it relates to the analysis of severe accidents, is included in Attachment F of this Environmental Report.Diablo Canyon Power Plant Page 2.10-2 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 2.11 HISTORIC AND ARCHAEOLOGICAL RESOURCES 2.11.1 AREA HISTORY IN BRIEF San Luis Obispo County lies within the traditional ethnographic territory of the Northern Chumash. The Chumash were among the most populous and socially complex groups in all of native California.

By the beginning of the Prothisto-,rc PDeit.me of European contact, the Chumash were living in large villages along the Santa Barbara Channel coast, with less dense populations in the interior regions, on the Channel Islands, and in coastal areas north of Point Conception.

Population density was unusually high for a nonagricultural group; some villages may have had as many as 1,000 inhabitants.

Occupational specialization went beyond craft activities such as bead production to include politics, religion, and technology.

Complex social and religious systems tied many villages together and regulated regional trade, procurement and redistribution of food and other resources, conflict, and other aspects of society. Leadership was hereditary, and some chiefs had influence over several villages, indicating a simple chiefdom level of social organization (References 98 and 115).The Northern Chumash in the vicinity of DCPP apparently were never-not as populous as their relatives in the Santa Barbara region, and archaeological research suggests societies that were relatively mobile that established small seasonal encampments in the context of resource intensification and growing population density dependent on fishin,-(Reference 106). Local populations may have led a less sedentary lifestyle with a dietary focus on inland rather than coastal or maritime resources and greater reliance on logistic mobility than their southern neighbors (Reference 127). The Northern Chumash mnay not have attained the levels of social and political deVelopment of their southern counterparts, and tThe extent to which they participated in regional networks integrating social and economic activities remains to be clarified.

The historic occupation of this region began with the Mission Period. The Mission Period was ushered in by Gasper de Portol, who camped at the mouth of the Santa Maria River in July 1769. The establishment of the Spanish Presidio in Santa Barbara and five Franciscan missions in Chumash territory significantly disrupted social, economic, and political organization.

Introduction of domestic plants and animals as well as European wild grasses caused irreversible changes in the local environment.

Native Californians had limited resistance to European diseases, which caused significant deaths among the Chumash.Spanish occupation severely disrupted

..u.. ,,.Chumash culture to the brinkt extinstion.

Although people of Chumash ancestry still live in the region today and many strive to retain pats-ef-their culture, the GeMplex-traditional social systems were changed radically of the Chu'mash eRnded during the Mission Period (1769-18,301821).

Larson et al. (1989) (Reference 128) suggest that climatic variability, prolonged droughts, and warmer sea-surface temperatures during this period forced the Chumash into the missions as a strategy to minimize economic and social risk. However, Price (2006) (Reference 120) argues that Mission agricultural yields were insufficient to Diablo Canyon Power Plant Page 2.11-1 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I support the native population, and the Northern Chumash continued to practice the full suite of traditional foodways well into the Mission period.Following the Mexican Revolution of 1821, California became part of the Republic of Mexico. With independence, the Mexican government began to secularize the mission properties, a process that was concluded in 1833. The missions were converted into churches, and regional commissions were established to dispose of the properties and resettle the lnd4ans neophytes affiliated with the missions.

Mexican government policy was to grant mission properties and other unclaimed land to prominent citizens who were required to inhabit and develop properties.

This period of California history, known as the Rancho Period (1821-1848), brought in a class of wealthy landowners who controlled the subsequent development of the state. The deterioration of relations between the United States and Mexico resulted in the Mexican War, which ended with Mexico relinquishing California to the United States under the Treaty of Guadalupe Hidalgo of 1848.The political and economic unrest in California during the early and mid-1840s is evident in the Mexican government's conveyance of the Cahada De Los Osos y Pecho y Islay, a 32,431-acre land grant that includes the now PG&E-owned lands. In 1842, Governor Alvarado granted the Cahada De Los Osos to Victor Linares; one year later, Alvarado's successor as governor, Manuel Micheltorena, awarded the Pecho y Islay to Francisco Padillo. In 1845, Micheltorena was replaced by Pio Pico (Reference 123). In September of that year, Pico consolidated the two grants and issued them to Diego (James) Scott and Juan (John) Wilson. By 1850, Wilson became the sole proprietor of the Cahada De Los Osos y Pecho y Islay.The Pecho y Islay Rancho (or Pecho Ranch) was likely used as pasture land. Although the eastern boundary of the ranch lay only 10-12 miles from the town of San Luis Obispo, the property was largely isolated and undeveloped.

Until fairly recently, the Pecho Valley Road-which extends just north of the present DCPP site and on through Montana De Oro State Park, then eastward through the Los Osos Valley, and on towards San Luis Obispo-was the only land route between the ranch and the outside world.The emergence of the dairy industry following the 1862-1864 drought attracted many northern Italian immigrants as well as Portuguese from the Azores Islands to San Luis Obispo County (Reference 116). Among these immigrants was Luigi Marre, native of Genoa, Italy. Marre leased the Pecho Ranch for 18 years, after which he bought 3,800 acres of the property.

Marre's parcel lay south of Diablo Creek. The northern portion of the Pecho Ranch is associated with another prominent stockman in San Luis Obispo County, Alden Bradford Spooner, Jr., who leased a 6,500-acre swath extending from just north of Islay Creek to Diablo Creek in 1892 (Reference 118). That same year he built his ranch house, which today serves as the visitors' center for Montafia de Oro State Park.Diablo Canyon Power Plant Page 2.11-2 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Along with livestock, agriculture was part of the Spooner Ranch's economy from the very beginning.

According to Ed Petersen, a former resident on the northern PG&E-owned land, crops were grown primarily on the coastal terrace, while livestock grazed in the hills further inland (Reference 120). During the 1920s and 1930s, much of the coastal terrace, including the project area, was leased to Japanese farmers. The impact of Asian farmers on the county's agricultural economy was considerable; by 1938, the market value of vegetable crops-led by peas, lettuce, and tomatoes-totaled just over $2.8 million, surpassing the $2.2 million combined figure for wheat, barley, and beans (Reference 105). The Japanese continued to farm the land until 1942, when they were involuntarily relocated to interment camps established during World War II under Executive Order 9066.Oscar Field acquired the Spooner Ranch in 1942. In 1954 he sold the northern half of the ranch to Irene McAllister.

Following financial troubles, the land passed into federal receivership and became part of the Montana de Oro State Park in 1965 (Reference 117). Eventually, Field gave up farming because of difficulties in tapping enough water to irrigate his crops. PG&E purchased the property and incorporated it into the the grounds of DCPP. In 1985, PG&E began commercial operation of DCPP.2.11.2 INITIAL OPERATION The Final Environmental Statement (FES) for operation of DCPP identified four sites in San Luis Obispo County listed on the National Register of Historic Places: the Dana Adobe in Nipomo, Caledonia Adobe in San Miguel, Mission San Miguel in San Miguel, and Hearst San Simeon State Historic Park, about 3 miles northeast of San Simeon (Reference 3). Since that time, some 30-28 additional buildings, structures, sites, and districts in San Luis Obispo County have been added to the National Register.

Of these, only the Rancho Cahada De Los Osos y Pecho y Islay prehistoric archaeological district is located within 6 miles of the plant; it encompasses much of the PG&E-owned land at DCPP.Systematic archaeological research began in the early twentieth century. The first professional surveys in the DCPP area were performed by Arnold Pilling in the late 1940s. He surveyed the marine terraces from Avila Beach to Morro Bay and recorded sites CA-SLO-2 (SLO-2), CA-SLO-3, and CA-SLO-61 at the mouth of Diablo Creek (Reference 119). In addition he identified two other sites, CA-SLO-7 and CA-SLO-8, located northwest of Diablo Creek.In 1966, State Archaeologist Francis Riddell conducted a survey of approximately 250 acres slated to be the future site of the DCPP. Riddell identified five archaeological sites in the area-Riddell Nos. 1, 2, 3, 4, and 5-but his report provides very little descriptive information concerning the sites, area surveyed, and method of survey (Reference 122). Although it is not stated in the report, CA-SLO-2 is the same as Riddell's No. 1 and CA-SLO-61 is Riddell's No. 2. Thus, as a result of Riddell's survey, two previously recorded sites were relocated and three new sites (Riddell Nos. 3, 4, and Diablo Canyon Power Plant Page 2.11-3 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 5) were recorded.

One of the new sites, Riddell No. 4 was-has since been assigned the designation CA-SLO-584-On 4966.In 1968, Roberta Greenwood conducted extensive excavations at CA-SLO-2, CA-SLO-61, CA-SLO-584, and three other sites within the construction areas for the DCPP facilities and a proposed access road from the plant to Avila Beach. Excavation appears to have been restricted to the direct impact areas of proposed facilities or remaining portions of the sites which had not been disturbed by grading or construction.

The excavations at CA-SLO-2 revealed a rich midden deposit more than 3 m deep, and exposed a cemetery complex containing 54 inhumations (Reference 107). Due to grading for road construction, an additional six inhumations were recovered from the site in November of 1968 and six fragmentary inhumations were collected in June 1969.A total of 66 burials were exposed. Grave goods were associated with some of the burials. The burials recovered from these excavations were turned over to a local Native American group and were reported to have been reburied.The artifact inventory from the site includes 2,885 stone, bone, wood, and shell artifacts including projectile points, blades, knives, choppers, scrapers, boring or drilling implements, and cores. Ground stone items include steatite bowls, bowl mortars, manos, milling stones, pestles, pitted stones, and charmstones.

Numerous mammal, shell, and bird bone artifacts were recovered in addition to 1,607 shell beads. A few shards of unglazed brownware pottery also were collected.

Three radiocarbon assays reported in the original site report (since calibrated to adjust for the reservoir effect)suggested a nearly continuous occupation spanning Glese-teapproximately IQ,000 10, 250 years, making CA-SLO-2 one of the oldest and most intensively occupied sites known from coastal mainland California (References 103 and 104).Greenwood also excavated at CA-SLO-61 along the bluff overlooking the coast, where she recovered 40 artifacts including a bowl mortar, pitted stones, a cobble pestle, a drill, and 21 scrapers.

These materials are similar to those recovered from the upper levels of CA-SLO-2 and were assigned by Greenwood (Reference 107) to the same cultural complex. Much of CA-SLO-61 was destroyed during construction of DCPP, only a small remnant of the site remains.CA-SLO-584 was also excavated by Greenwood (Reference 107). The site was located on a small flat on the south bank of Diablo Creek, which was covered by 40+ feet of fill to construct thenew the 6ite of the DCPP switchyards.

Materials collected included 10 projectile points, leaf-shaped blades, scrapers, three bowl fragments, a hopper mortar fragment, a pestle, pitted cobbles, brownware shards, Olivella disks, and Mytilus and Tivela beads. Historic materials included five glass trade beads and one brass ring.In addition, three cupule boulders were located within the site boundaries.

Based on cross-dating of artifact types similar to the upper levels of CA-SLO-2 and the occurrence of historic period artifacts, the site was associated with short-term, seasonal occupation by the late prehistoric and historic Chumash (Reference 107).Diablo Canyon Power Plant Page 2.11-4 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I The last site examined during the 1968-69 investigations was Riddell Site 3 (CA-SLO-1159), located at the southern tip of Diablo Cove. Greenwood (Reference 107)provides the following description of the work completed at the site: "It should be noted that one additional locale was described in the contract agreement but not excavated during the fieldwork described in this report.A light scatter of shell which appeared fresh and recent was on the surface in 1968, but test pits dug by shovel disclosed only a very shallow soil covering on the volcanic outcrop and no shell, chipping waste, or artifacts below the surface. In view of the total priorities, no systematic excavation was attempted." In 1974, Robert Hoover realized the importance of the Rancho Canada de los Osos y Pecho y Islay area and nominated 15 sites to the National Register as an archaeological district; his nomination included CA-SLO-50, -51, -52, -53, -54, -55, -58,-63, -585, -682, -684, -686, -687, -688, and -689 (Reference 114). Following her 1978 survey of the area surrounding CA-SLO-2, Greenwood submitted a NRHP nomination for CA-SLO-2/3 and CA-SLO-8 to be included within the archaeological district (Reference 112).2.11.3 PROTECTION MEASURES FOR CA-SLO-2 CA-SLO-2 suffered substantial damage during construction of DCPP. Although portions of the site may have been destroyed, portions of the site have also been preserved and protected since that time. The 1980 Archeological Resources Management Plan (ARMP) notes: "The central part of the terrace between Diablo Canyon and next drainage to the northwest has been subject to both grading and fill and was the area most extensively used in the past. The amount of resource loss in this area is unknown. On so deep a midden, however, disturbance has likely been limited to the upper levels. In addition, in the course of preparing for the construction of Units 1 and 2, the central portion of the terrace was used as a depositary for soil removed from the plant site.Based on a comparison of maps prepared in 1966 and 1971, there is as much as 25 feet of fill presently concealing and protecting the midden in the center of the site (Reference 111)." The fill deposited over the central portion of CA-SLO-2 effectively caps what remained of the main archaeological deposit. Portions of the site, however, remain exposed around the edges of the fill cap.Since the 1968 investigations, PG&E has instituted various procedures for the protection and management of CA-SLO-2.

In 1980, an ARMP was incorporated into the DCPP operating license (Reference 111). The ARMP addressed fire protection and Diablo Canyon Power Plant Page 2.11-5 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I limited further surface alterations at the site by confining storage of materials to areas protected by fill, restricting traffic flow, and limiting maintenance of roads and existing utility lines to areas which have been previously disturbed.

The site area has been partially fenced and warning signs are posted at entry points and along of-roads through aGGess-te the site. Since November of 1983, photographs have been taken at regular intervals from 23 stations within the site in order to monitor any physical changes to the site caused by natural or other processes.

The ARMP requires PG&E to complete annual monitoring of CA-SLO-2 to determine if there are impacts to the site. In the past 20 years, the annual site condition assessment monitoring of CA-SLO-2 has shown no project induced impacts to the site.In addition to the cultural resource protection measures, and project-focused compliance work, the DCPP Land Stewardship Team actively conserves and interprets the property's archaeological resources as part of an interdisciplinary approach to ecosystem management.PG&E has created a Diable CanYGo Stewardship Committee.

A PG&E= Cultural Specialist sits on this cOmFittee, which rFeieWs a4l activities on PRG&E -iowned lands.2.11.4 RECENT STUDIES In 1986, Holson reported on the unsurveyed portions the NRC license regulated area for DCPP (Reference 113). A total of six prehistoric sites were reported.

Three new sites, CA-SLO-1 161, CA-SLO-1 162, and CA-SLO-1 163, two of Riddell's sites, CA-SLO-1 159 (Riddell 3) and CA-SLO-1 160 (Riddell 5), and a new site form were prepared for CA-SLO-61.

In 1988, Wilcoxon conducted intensive background research and a pedestrian survey of the access road between the power plant's northern guard station and the gate at Montana de Oro State Park. He documented five sites, including CA-SLO-7, -8, -1196,-1197, and -1198 (Reference 126). Later that year Breschini and Haversat tested CA-SLO-7 and CA-SLO-8, and found both sites to be significant cultural resources (Reference 99).More recent studies include a survey of the northern portion of the DCPP property in 1991 that resulted in the identification of 36 cultural resources within the 370 acre area referred to as the North Ranch (Reference 100), followed by more detailed documentation of four sites (CA-SLO-5, -6, -9, and 1197/H) (Reference 101). In 1992, an intensive archaeological survey of 420 acres in the south portion of the property, referred to as the South Ranch, resulted in the documentation of 41 sites including 16 previously unidentified resources (Reference 125).In 2005, archaeological studies were undertaken on the North Ranch of the DCPP lands. A baseline cultural resource resources inventory and site condition assessment were initiated for the area in proximity to the proposed Point Buchon Trail (public access). As part of the study, PG&E's consultant examined and re-recorded 22 previously identified prehistoric and historical archaeological sites between Coon Creek Diablo Canyon Power Plant Page 2.11-6 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I and Crowbar Canyon (Reference 120). PG&E then developed a program to monitor these sites through regular inspection to assess changes in site conditions resulting from intensified recreational use. Monitoring and condition assessments began in 2007 and are continuing.

In 2006 and 2007, a new-NRHPNational Register nomination paGkage-update was completed for the Rancho Canada de los Osos y PDcho Y Wslay Prohistoric A.chaeeogioal Site Pecho District.

The new-nomination updated and expanded the district to include approximately 9,000 acres of PG&E property on the coastal bluff between Coon Creek and the Port San Luis lighthouse; the number of resources included within the district was thus expanded from 17 to 84 (Reference 102). The grouping of Native American sites within the archaeological district includes major villages, long-term residences, short-term residences, locations, ideological sites, and quarry sites. The nomination was submitted to the State Historic Preservation Officer (SHPO) in 2007; two rounds of comments on the draft nomination package were received by PG&E in 2013. PG&E is currently conducting supplemental surveys and research required to respond to SHPO's comments and update the nomination.

An updated nomination package will likely be submitted in late 2015.Ofpa4,tiUa Inmportance is CA SLO 2(M3), one of the oldest prehistoric village sites identified along the central coast of California (pr-eyious NRHP listing #7-600047-7).

Most recently, 25 sites on the North Ranch and an additional 44 sites on the South Ranch were revisited.

At that tifme, sites were n the r, rren/t CPaifolrna; Department of Parks- and- Recreationn c-,ultsural resource records (DPR 523), and site locations were recorded using state of the art GPS technology (References 102 and 120). The current condition of each site was assessed, with particular attention to bluff erosion and the effects of grazing and agriculture.

Marine shell samples also were collected from many of the sites to obtain additional radiocarbon dates. A PG&E= archaeologist repor-ted on an additional five sites, in close proximity to the DCPP. Seven sites recordod at the nreth end of the property by INF=QTECr Rese-parch in 19(91 Were not formally revisited, nor were theL tWQ hist0i Site w.Aithout prehistoric components.

One additiona!

6ite, CA SLO 688, originally nomin~ated to the NRHP by Hoover, was also not revisited.

Subsequently, each site is periodicallyJ revisited ina nging programn of site monitorFing and condition management In 2008, a 'hot spot' survey was completed of the transmission lines and on PG&E property adjacent to DCPP. This field study consisted of reviewing areas that have not been surveyed in the past and appear to be sensitive for cultural resources.

Additionally, visits to previous recorded cultural resources were completed to assess the condition of the sites and the adequacy of the site records. This field study is documented in the Cultural Resources Technical Report (Reference 121). No new cultural resources were identified during field work.Beginning in 2009, PG&E has partnered with California Polytechnic State University, San Luis Obispo (Cal Poly) to sponsor an archaeological field school at sites affected by trail use and coastal erosion on DCPP lands. To date, Cal Poly has salvaged material Diablo Canyon Power Plant Page 2.11-7 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I and information from three sites (CA-SLO-5, -1366/H and -1370/1).

Results have been published for the 2009 and 2011 investigations (References 153 and 154, respectively).

The technical report for the most recent excavation at CA-SLO-5 is in preparation.

A DCPP project was implemented in 2010 that required land disturbing activities near the southern margin of CA-SLO-2.

Consistent with the ARMP, the project prompted enhanced monitoring on a portion of the site and collection of supplementary information on the nature and extent of the archaeological deposit along a deep road-cut through the site. The project area was surveyed by PG&E archaeologists, followed by a subsurface examination of the project area (augering and mapping) by PG&E consultants to verify the site boundary.

Archaeological monitoring was accomplished in conjunction with buried utility prospecting and was monitored by a professional archaeologist and Northern Chumash representative.

In 2011, site CA-SLO-61 was encountered following the excavation of a narrow (12-inch-wide) trench across a paved area. The trench exposed midden deposits that had been covered since the plant was built between 1968 and 1973. Upon recognizing that the dark soil could represent an archaeological deposit, work was immediately suspended and PG&E's Cultural Resource Specialist was notified.

Data recovery, in consultation with a Northern Chumash monitor, was undertaken to retrieve column samples from the midden at intervals along the trench, which were processed and analyzed according to standard archaeological procedures to compensate for the loss of information resulting from trenching through the remaining portion of the site. The findings were reported by Price et al. (Reference 155) and concluded that the upper stratum of the site had been truncated during construction, but that the deeper portion of the site retains important information related to chronology, site function and cultural development.

During the summer and fall of 2012, PG&E conducted studies related to the Onshore Seismic Imaging Project (OSIP) within and adjacent to numerous archaeological sites on the DCPP lands, including CA-SLO-2.

The OSIP was designed to avoid impacts to cultural resources and other aspects of the environment.

In compliance with Section 4.2.2 of the DCPP Environmental Protection Plan (EPP), PG&E reported the planned work associated with OSIP within CA-SLO-2 to the NRC in a letter dated August 21, 2012 (Reference 156). The notification was deemed necessary in light of requirements in the ARMP (Reference 111). PG&E's archaeological consultant developed and implemented a series of procedures to ensure impact avoidance during installation and operation of seismic survey equipment within archaeological sites. Their observations were memorialized in technical memoranda that conclude that the protection measures developed for the OSIP study were effective and resources were not adversely impacted (References 157 and 158).In 2013, PG&E sponsored an ethnography to document the historic Japanese-American occupation of the North Ranch of the DCPP lands (Reference 159). While conducting the study, PG&E's consultant conducted extensive interviews with former occupants and Diablo Canyon Power Plant Page 2.11-8 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 their descendants.

The rich story that was captured is being actively used for interpretation along the Point Buchon Trail.2.11.5 CURRENT STATUS As of 20082014, the National Register of Historic Places listed 30-32 locations in San Luis Obispo County, California (Reference 124). Of these 30-32 locations, one falls within a 6 mile (9.7 km) radius of DCPP (Figure 2.1-2): Rancho CafIada de Los Osos y Pecho y Islay, which includesing CA-SLO-2.

Additionally, the National Register of Historic Places listed 439-159 locations in all counties DCPP transmission lines cross (San Luis Obispo, Kern, Monterey, Kings, and Fresno Counties) (Reference 124). Of these 439-159 locations, only two fall within a 1.2-mile (2 kin) radius of DCPP transmission lines (Figure 3.1-6). Two Historical Placeshistoric properties listed on the National Register fall just outside of the 6 mile buffer and are directly adjacent to PG&E-owned lands, these include the Port San Luis Site and the San Luis Obispo Light Station located on Point San Luis. Table 2.11-1 lists the three National Register of Historic Places sites within six miles of DCPP or within 1.2 miles of the transmission lines (the study area).The study area, as defined above, lies within San Luis Obispo, Monterey, Fresno, Kings, and Kern Counties.

Additional records searches were therefore conducted at the Northwest Information Center at Sonoma State University, the Southern San Joaquin Valley Information Center at California State University, Bakersfield, and the Central Coastal Information Center at the University of California, Santa Barbara. The Information Centers are part of the California Historical Resources Information System.PG&E Records were also reviewed at this time to identify previously recorded or otherwise known cultural resources and previously recorded archaeological sites within 6 miles of DCPP or within 1.2 miles of the DCPP transmission lines. The record searches identified 636 prior cultural resource studies and 439 prehistoric and historical sites within the project area. Seventy-nine sites have been recommended or determined eligible for the National Register, eight sites have been recommended as not eligible, and the remaining sites have either not been evaluated or the status is unknown. Unevaluated sites or status unknown are treated as eligible until otherwise determined not eligible, with SHPO concurrence.

Additional information is provided in the Cultural Resources Technical Report (Reference 121), which includes a bibliography of studies, maps depicting studies and sites, and a CD containing site records and a record of consultation.

Diablo Canyon Power Plant Page 2.11-9 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 2.12 KNOWN OR REASONABLY FORESEEABLE PROJECTS IN THE SITE VICINITY As indicated on Figure 2.1-3, there are no urban areas or industrial development within the 6-mile radius of DCPP.In 2003, Duke Energy LL. proposed a modernization and replacement project on the existing Morro Bay Power Plant site, approximately 10 miles north of DCPP was proposed.

if the project is approve"d and impemete, two new generating units would replac~e the existing four fossil fuel boiler units. The replacaement facility would include two 600 MWV gas fired and szteam driven combined cycle u nits. In addition, the existing three 450ft taill would be replaced with four 145 ft tall stacks. The ne coembined cycle units would continue to use the existing once through seawater cooling syst em which draws from MorrO Bay and discharges,-

intoe Estero Bay. Power froM the combined cycle units would tie into the existing 230 k-V PG&E transmission system at.the Morro Bay Power Plant Switchyard.

Thus, no new transmissien lines would be....... ... .. ..* ..... .. +... .r.. *.... ...... ... .... t, i, '..,fl "ht*PG&E~ ppelne i an'id md onribu mtr syste' (RfleireRn 129).'n~v Gr~ntlyr~

the MOFFGi43ath mondernizatin and replacement project 430).n In 2014, the permanent closure of the Morro Bay Power Plant was announced (Reference 160).Per the California Energy Commission, electrical power generation sources within 80 km (50 mi) of DCPP include two natural gas power plants (9.8 MW total), four hydroelectric power plants (5.94 MW total), three solar installations (677.64 MW total), and one landfill gas installation (1.48 MW total). (Reference 161)PG&E identified facilities on the California Independent System Operator (CALISO)interconnection queue that, if successfully permitted and constructed in the future, would be located in the four counties within 50 mi of DCPP. A facility's presence on the interconnection queue does not guarantee that it will ultimately begin operation.

Per the CALISO, 23 potential power generation facilties are actively in the application review process in the four counties within 50 mi of DCPP: 22 photovoltaic solar facilties and one natural gas steam turbine facility (Reference 197).Twelve industrial facilities within the 80-km (50-mi) radius of DCPP have NPDES permits (Reference 162).DCGPP. PG&E is not aware of any other substantial existing or reasonably foreseeable industrial projects in the vicinity of DCPP.Diablo Canyon Power Plant Page 2.12-1 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 2.13 GEOLOGYAND SOILS 2.13.1 REGIONAL AND SITE GEOLOGY DCPP is in the southern end of the Coast Ranges Geomorphic Province.

This province is characterized by northwest-trending mountains and valleys composed of Mesozoic and Cenozoic marine and terrestrial sedimentary deposits underlain by Franciscan formation metamorphic rocks and/or granite rocks. The Coast Ranges Geomorphic Province is bounded by the offshore Santa Maria Basin to the west. Figure 2.13-1 depicts the terrains, basins, and structural blocks in the DCPP vicinity.DCPP is located on the Point Buchon peninsula, on the southwestern slope of an area known as the Irish Hills. This peninsula is at the northern and highest end of the San Luis Range, a prominent west-northwest-trending mountain range. The Irish Hills are approximately 11 miles (18 kilometers

[kin]) long and 8.5 miles (14 kin) wide, and are bordered on the north and west by the Los Osos Valley and Estero/Morro Bays, and on the south and east by San Luis Obispo Creek Valley and San Luis Obispo Bay. The Irish Hills reach elevations of 1,600 to 1,800 feet (500 to 550 m) (Reference 163). Islay, Coon, Diablo, Pecho, and See creeks originate near the center of the range and flow radially toward the shore (Reference 163).The continental shelf in the DCPP area is approximately 3 to 12 nautical miles (nm) (5 to 20 kin) wide and generally lies between the coastline and a prominent slope change to the steeper (1.0 to 2.0 degree) continental slope at water depths of approximately 330 to 740 feet (100 to 225 m). Numerous rocks extend above sea level close to the shoreline, including Lion Rock near Diablo Canyon, and Pecho Rock west of Olson Hill.The Santa Rosa Reef and Wesdahl Rock are shallow bedrock projections west of Point San Luis that lie approximately 18 feet (6 m) below mean sea level (Reference 163).Geologic strata in the offshore continental shelf and slope within the DCPP area include shales, claystones, siltstones, sandstones, unconsolidated clays and sands, and volcanic and metamorphic rocks.2.13.2 SITE STRATIGRAPHY Geologic units at DCPP and in the vicinity are summarized in Table 2.13-1 and their distribution is shown on Figure 2.13-2. This table lists each geologic formation, a description of the formation's general rock type or lithology, the location of the formation, and age.2.13.3 POTENTIAL GEOLOGICAL HAZARDS Land Subsidence The site is underlain by folded bedrock strata consisting predominantly of sandy mudstone and fine-grained sandstone.

Unbroken and otherwise undeformed upper Pleistocene terrace deposits overlying a wave-cut bedrock bench indicate that folding Diablo Canyon Power Plant Page 2.13-1 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 and faulting in the bedrock antedated formation of the terrace, and that no significant tectonic subsidence is occurring at the site. There is also no evidence for subsidence due to fluid withdrawal due to pumping (water or oil), mining, or collapsible soils. Local depressions and other irregularities on the bedrock surface plainly reflect erosion in an ancient surf zone. (Reference 164)Tsunamis Tsunamis are sea waves generated by rapid displacement of a large volume of sea water, resulting from submarine vertical faulting or warping of the sea floor, from large-scale submarine slides, or from volcanic eruptions in or near ocean basins. In the open ocean, these waves have a very long period and wavelength.

The waves are spaced far apart and travel at speeds up to hundreds of miles per hour.As a tsunami approaches the shoreline, the speed of the wave decreases and the wave height increases, resulting in potentially destructive effects. Historical records indicate that the severity of tsunami-generated damage varies greatly, depending on factors such as coastal topography, the existence of offshore islands, and the direction of the incoming waves.More than 80 tsunamis have been historically recorded in California; the majority caused little to no damage (Reference 165). The California Emergency Management Agency (Cal EMA) has prepared tsunami inundation maps for emergency planning purposes (Reference 165). These maps indicate that the potential for tsunami-related inundation exists along the shoreline of the DCPP area and various historical river and stream inlets.DCPP was designed and constructed to withstand the maximum combined wave runup from a distantly-generated tsunami (30 feet) and the maximum combined wave runup for a near-shore tsunami (34.6 feet) (Reference 166). A search of the National Oceanic and Atmospheric Administration (NOAA) Global Historical Tsunami Database was conducted for the California Central Coastline near DCPP (Reference 167). The search showed that the maximum water height resulting from tsunamis was 2.02 m (6.6 feet).This is well below the analyzed water heights discussed above.The only safety-related system that has components within the projected sea wave zone is the auxiliary saltwater (ASW) system. The ASW pump motors are housed in watertight compartments within the intake structure.

These compartments are designed for a combination tsunami-storm wave activity to elevation

+48 feet MLLW (+45.4 feet MSL). The massive concrete intake structure ensures that the pumps remain in place and operate during extreme wave events. The intake structure is arranged to provide redundant paths for seawater to the pumps, ensuring a dependable supply of seawater.(Reference 166)In 2013, the California Coastal Commission evaluated sea-level rise for policy guidance purposes.

The State of Califomia Sea-level Rise Guidance Document prepared by the Diablo Canyon Power Plant Page 2.13-2 License Renewal Application I

APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Ocean Protection Council was also updated in 2013 to include sea-level rise projections from the National Research Council report. For the time period of 2000 -2050, the sea-level rise projections are 4.68 -24 in (0.39 -2 feet) (Reference 168). PG&E evaluated this amount of sea-level rise for DCPP and determined that it will have no impact on the tsunami evaluation since the ASW system is designed for 45.4 feet MSL which has more than enough margin to accommodate an increase in sea level rise of up to 6 feet combined with a maximum tsunami water level of 34.6 feet.Landslides Slopes in the Irish Hills are subject to mass-wasting processes, including landslides, debris flows, creep, gully and stream erosion, and sheet wash (Reference 169). A large (exceeding 40 hectares [100 acres]) ancient landslide complex is present on the slopes of Diablo Canyon, approximately 120 m (400 ft) east of the site (Figure 2.13-2), at the closest point (References 170 and 171). The dip of the bedrock in the vicinity of these large slides is downslope, contributing to unsupported bedding and resultant slope instability.

This large landslide complex has a subdued geomorphic expression in the landscape, and has been considerably modified by erosion. Thin stream-terrace deposits locally cover the toes of the slide mass and remnants of a 430, 000-year-old marine terrace appear to have cut into the toe of this slide complex, indicating that the landslides are old and likely formed in a wetter climate during the early Holocene to late Pleistocene (References 170 and 171). Landslides within the complex were evaluated and determined to have no adverse effect on safety-related structures at DCPP (Reference 164).Liquefaction Liquefaction is defined as the transformation of a granular material from a solid state into a liquefied state as a consequence of increased pore pressure, which results in the loss of grain-to-grain contact. Seismic ground shaking is capable of providing the mechanism for liquefaction, usually in fine-grained, loose to medium dense, saturated sands and silts. The effects of liquefaction may be damaging if total and/or differential settlement of structures occurs on liquefiable soils.Potential liquefaction and seismically induced settlement was addressed during the design and construction of DCPP. DCPP structures are founded on a competent bedrock beneath the terrace deposits, and the groundwater level lies well below grade, at a level corresponding to that of Diablo Creek. There is no likelihood that DCPP site could experience artificially induced and potentially damaging subsidence, uplift, collapse, or changes in subsurface effective stress related to pore pressure phenomena. (Reference 164)Diablo Canyon Power Plant Page 2.13-3 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Faults Numerous faults have been identified in the DCPP site vicinity (see Figure 2.13-3).Faults do not usually consist of a single, clean fracture in the Earth's crust, so geologists use the term "fault zone" when referring to the zone of complex fractures associated with an identified fault. Figure 2.13-3 shows the known and suspected faults in the DCPP vicinity.The State of California considers a fault segment historically active if it has generated earthquakes accompanied by surface rupture during historic time (that is, approximately the last 200 years). A fault that shows evidence of movement within the Holocene epoch (approximately the last 11,000 years) is defined as active. A fault segment is considered potentially active if there is evidence of displacement during the Quatemary period or approximately the last 2 million years (Reference 173).The major active faults that could affect the DCPP site are discussed below and include the Hosgri Fault Zone (approximately three miles offshore), the Shoreline Fault Zone (approximately 1 kilometer offshore of DCPP), the Los Osos Fault Zone, and San Luis Bay Fault Zone.The Hosgri Fault Zone (HFZ) -The HFZ is an active right-slip fault zone located approximately 4.5 km (3 miles) southwest of DCPP. Geologists believe the HFZ controls the break between the continental shelf and slope (Figure 2. 1-1). The fault zone itself is up to 1.5 miles (2.5 km) wide and 68 miles (110 km) long. The HFZ has a right-lateral slip movement of 0.04 to 0. 12 inch per year (inlyr) (I to 3 millimeters per year [mm/yr]) (References 179 and 180); the rate of slip is greatest to the north along the larger, interconnected San Gregorio-San Simeon-Hosgri fault system. The HFZ was mapped along its entire length using petroleum industry multichannel seismic-reflection data that imaged the traces to depths of 0. 9 to 1.8 miles (1.5 to 3 km) beneath the seafloor.

Part of the fault zone was remapped using single-channel, high-resolution USGS sparker data, which provides better near-surface resolution of the fault traces and associated structures in the upper few hundred meters (Reference 181).The Shoreline Fault Zone (SFZ) -The Shoreline Fault is up to 45 km long, with an estimated slip rate of 0.01-0.51 mm/yr and preferred rate of 0.01-0.06 mm/yr (Reference 196). This fault zone is located between Point Buchon and Point San Luis, east of the HFZ, and was initially identified through indirect seismic information.

PG&E named the SFZ and conducted a two-year study to constrain the location and extent of this fault zone. Using geologic, geophysical (gravity and magnetic surveys, multibeam echo sounding, and seismic reflection profiling), and seismicity data collected from 2008 to 2010, PG&E has defined the following three distinct segments within the SFZ 15 (Reference 172): (1) A 9.7- to 14.5-mile (6- to 9-km) northem segment that is defined by a distinct 40-degree northwest-trending discontinuous scarp;Diablo Canyon Power Plant Page 2.13-4 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I (2) A 12-mile (8-kin) central segment expressed as a distinct linear feature that appears in bathymetric and magnetic data plots; and (3) A 9.7-mile (6-kin) southern segment expressed as a poorly to moderately defined linear feature in bathymetric data plots.Findings from these detailed studies of the Shoreline fault were presented to the NRC in January 2011 (Reference 163).The Los Osos Fault Zone -The Los Osos fault zone is approximately 31 miles (50 km) long and 1.2 miles (2 km) wide, and extends along the north-northeast side of the Irish Hills, from Estero Bay to the northwest to an intersection with the West Huasna fault southeast of the city of San Luis Obispo. This fault zone is a system of discontinuous, subparallel faults that has been interpreted by PG&E to have oblique-slip offset. PG&E has determined a vertical rate of separation across the fault zone of less than 0. 1 in/yr (about 0.2 mmlyr) (Reference 172).Southwestern Boundary Fault Zone -The southwestern margin of the San Luis Range is bordered by a complex zone of late Quaternary reverse, oblique-slip, and possibly strike-slip faults. This fault zone is approximately 2 to 6 miles (4 to 10 kin) wide and over 36 miles (60 km) long. The faults generally strike west-northwest and dip steeply to moderately to the northeast.

PG&E has estimated that the rate of vertical separation across the fault zone is less than 0. 1 in/yr (about 0. 1 to 0.2 mm/yr)(Reference 172).2.13.4 SEISMIC HISTORY The DCPP area has experienced numerous historical seismic events centered on both onshore and offshore faults. Based on a USGS National Earthquake Information Center database search performed in May 2014, approximately six earthquakes with a magnitude of 6.0 or greater were recorded within a 100-mile radius of DCPP from 1973 through 2013 (Reference 174). Table 2.13-2 presents the results of that database search. The largest historic earthquake is shown to be magnitude

6.5 earthquake

in 2003.2.13.5 SOILS The soil in the DCPP vicinity consists predominantly of Lodo clay loam. The Lodo series consists of shallow, somewhat excessively drained soils, formed from weathered hard shale and fine-grained sandstone.

This soil occurs at elevations of 300 to 3,400 feet (90 to 1,040 m), in the sub-humid mountain ranges at lower elevations and foothills throughout California (Reference 175). Further discussion of regional soil composition can be found in Section 2.13.2.Diablo Canyon Power Plant Page 2.13-5 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 Bluff Retreat and Erosion Potential Within the DCPP property, the coastline trends about N30W and consists of a series of small coves, resistant headlands, sea stacks, and pocket beaches that have been eroded into bedrock sea-cliffs.

As described in Table 2.13-1, DCPP sea-cliffs are formed of early and middle Miocene Obispo Formation bedrock. The Obispo Formation is divided into two members: a fine-grained, massively bedded, resistant zeolitized tuff (mapped as unit Tor), and a thick sequence of interbedded marine sandstone, siltstone, and dolomite (mapped as unit Too. The Tor unit consists of relatively hard, strongly-cemented rock that is resistant to erosion, and forms the headlands and sea stacks along the coast, and resistant vertical to overhanging sea-cliffs.

This unit exerts a major influence on the sea-cliff retreat geometry and rates.In 2004, a shoreline retreat study was completed for the DCPP shoreline (Reference 176). This study concluded that the estimated maximum uniform retreat rate for 75 years is 1 to 4.5 meters total. The DCPP license renewal period ends in 2044 and 2045 for Units I and 2, respectively.

Based on the observed rates of sea cliff retreat, the existing setback of DCPP facilities (50-100 feet from the coastal bluff[Reference 176]) is adequate for the License Renewal period.Prime Farmland Soils Natural Resources Conservation Service (NRCS) maps show no areas of prime farmland in the DCPP vicinity (Reference 177).2.13.6 MINERAL RESOURCES Mineral rights in the DCPP lands are owned by PG&E. According to the 1989 California Division of Mines and Geology Mineral Resources survey of southwestern San Luis Obispo County, the DCPP lands are classified as Mineral Resources Zone -I (MRZ-1)(Reference 178). MRZ-1 is applied to areas where adequate information indicates that no significant mineral deposits are present, or where it is judged that little likelihood exists for their presence.

This designation is assigned when well-developed lines of reasoning, based on economic and geologic principles, and adequate data have demonstrated that the likelihood for occurrence of significant mineral deposits is nil or slight.Diablo Canyon Power Plant Page 2.13-6 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 24-32.14 REFERENCES

1. noal-bl Canyo ......den Spen Fuel Ste -qe n License ^pplora:^e Envi4ronmental Rewot, Pacific Gas andd Eleclrtrics Company, Decembe 2O-l.Diablo Canyo n Power Plant Emergency Plan -Appendix E Evacuation Time Estimates (Figure E-1 / Table E-1) Rev 4.00.2. Diablo Canyon Power Plant Units 1 & 2 Final Safety Analysis Report Update, Revision 18, October 2008.3. Final Environmental Statement Related to the Nuclear Generating Station Diablo Canyon Units 1 & 2, Pacific Gas and Electric Company, United States Atomic Energy Commission, May 1973.4. Marine Algae of California, Abbott, I. A., and G. J. Hollenberg.

Stanford University Press, Stanford, California.

1976.5. The FnFn --; in~ the voraoirv of Dialo. Gave w.ith sp~a r~1+Ret abalone and bony fishes, Burge, R. T. and S. A. Schultz. Califoria DeparmeRnt Fish & Game, Mar. Re-. Tech. Rpt. No. 19. 1979.Deleted in Amendment

1.6. California

Marine Life Protection Act (MLPA) Initiative Regional Profile of the Central Coast Study Region (Pigeon Point to Point Conception, CA), Central Coast Regional Stakeholder Group (CCRSG). 2005.7. Population studies of California sea lions near Diablo Canyon, California, Chambers, J. R. Master's Thesis, California Polytechnic State University, San Luis Obispo, California.

1979.8. Community interactions on marine rocky intertidal shores, Connell, J. H. Ann.Rev. Ecol. Syst. 3: 169-192. 1972.9. Competition, disturbance and community organization:

The provision and subsequent utilization of space in a rocky intertidal community, Dayton, P. K.Ecol. Monogr. 41: 351-389. 1971.10. Open coast intertidal and shallow subtidal ecosystems of the northeast Pacific.In: A. C. Mathieson and P.H. Nienhuis (eds.), Ecosystems of the World 24: Intertidal and Littoral Ecosystems.

Foster, M. S., A. P. De Vogelaere, J. S. Oliver, J. S. Pearse, and C. Harrold. Elsevier, New York. 1991.11. The ecology of giant kelp forests in California:

A community profile. Foster, M. S., and D. R. Schiel. U.S. Fish & Wildlife Service Biol. Rep. 85(7.2). 1985.Diablo Canyon Power Plant Page 2.14-1 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 12. Analysis of the continued use of Diablo Creek water as a component of the DCPP makeup water system. Fry, M. E. Pacific Gas and Electric Company, Technical and Ecological Services, San Ramon, California.

1993.13. A quantitative ecological study of selected near-shore marine plants and animals at the Diablo Canyon Power Plant site: a pre-operational baseline:

1973-1978.

Gotshall, D. W., L. L. Laurent, S. L. Owen, J. Grant, and P. Law. California Department of Fish & Game, Mar. Res. Tech. Rep. No. 48. 1984.14. Harbor seal, Phoca vitulina richardsi, census in California, May-June 1991.Hanan, D. A., L. M. Jones, and M. J. Beeson. NOAA/NMFS SWFC Admin.Report LJ-93-03.

1992.15. Ecological relations in the evolution of Acanthopterygian fishes in warm-temperate communities of the northeastern Pacific. Hobson, E. S. Env. Biol. Fish.40: 49-90. 1994.16. Preliminary descriptions of the terrestrial natural communities of California.

Holland, R. F. California Department of Fish & Game, Nongame-Heritage Program, Sacramento, California (unpublished).

1986.17. Dietary selectivity in the field and food preferences in the laboratory for two herbivorous fishes from a temperate intertidal zone. Horn, M. H., S. N. Murray, and T. W. Edwards. Bull. So. Cal. Acad. Sci. 82: 79-94. 1982.18. New mainland haul-out site for the northern elephant seal, Mirounga angustirostris, in Central California.

King, J., A. Fukuyama, S. Krenn, and A.Setran. California Department of Fish & Game 75: 244-247. 1989.19. California's living marine resources:

A status report. Leet, W. S., C. M. Dewees, R. Klingbell and E. J. Larson (eds.). The Resources Agency, California Department of Fish & Game. 2001.20. Community development and persistence in a low rocky intertidal zone.Lubchenco, J., and B. A. Menge. Ecol. Monogr. 59: 67-94. 1978.21. Guide to the coastal marine fishes of California, Miller, D. J. and R. N. Lea.California Department of Fish & Game, Fish Bull. 157. 1972.22. Diablo Canyon natural resources management and land stewardship program inventory and assessment of aquatic resources, Moock, S. W. Pacific Gas and Electric Company, Technical and Ecological Services, San Ramon, California.

1990.Diablo Canyon Power Plant Page 2.14-2 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 23. Biogeographical analysis of intertidal macrophyte floras of southern California, Murray, S. N., and M. M. Littler. J.Biogeogr.

8: 339-351. 1982.24. Endangered Species Act Section 7 Consultation, Biological Opinion, and Incidental Take Statement, National Oceanic and Atmospheric Administration (NOAA) National Marine Fisheries Service (NMFS). 2006.25. An evaluation of the marine flora and fauna in the vicinity of Diablo Cove, California, North, W. J. Marine Advisors, La Jolla, California.

1969.26. Ecological studies at Diablo Canyon Power Plant. Final Report, 1967-1987, North, W. J., E. K. Anderson, and F. A. Chapman. 1989. Wheeler J. North Pacific Gas and Electric Company, San Francisco, California.

27. 2007 Pt. Buchon Loop Trail Monitoring Report, Prepared by Garcia and Associates, San Francisco, California for Pacific Gas and Electric Company, San Francisco, California.

2008.28. Final Environmental Impact Report: Diablo Canyon Power Plant Steam Generator Replacement Project, Prepared by Aspen Environmental Services for Pacific Gas and Electric Company, San Francisco, California.

2005.29. A Sensitive Resources Inventory for Diablo Canyon Lands: Vol. I & II, Pacific Gas and Electric Company. BioSystems Analysis, Inc. 1995.30. Diablo Canyon Power Plant Thermal Effects Monitoring Program: Final Report, Prepared by Tenera Environmental Services, Berkeley, CA for Pacific Gas and Electric Company, San Francisco, California.

1988.31. Diablo Canyon Power Plant Thermal Effects Monitorinq Program. Final Report, Document DCL-88-108.

Prepared by Tenera Environmental Services, Berkeley, California.

1988.32. Between Pacific Tides, Fifth Edition, Ricketts, E. F., J. Calvin, J. W. Hedgpeth, and D. W. Phillips.

Stanford University Press, Stanford, California.

1985.33. The distribution, abundance, community structure, and primary productivity of macro-organisms from two central California rocky intertidal habitats, Seapy, R.R., and M. M. Littler. Pac. Sci. 32: 293-314. 1978.34. Transitional ecological requirements for early juveniles of two sympatric Stichaeid fishes, Cebidichthys violaceus and Xiphister mucosus, Setran, A. C., and D. W.Behrens. Env. Biol. Fish. 37: 381-395. 1983.Diablo Canyon Power Plant Page 2.14-3 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 35. An annotated list of the marine algae (Chlorophyta, Phaeophyta, and Rhodophyta) of San Luis Obispo County, California, with keys to genera and species, Sparling, S. R. Blake Printery, San Luis Obispo, California.

1977.36. Endemism and speciation in the California flora, Stebbins, G. L. and J. Major.Ecol. Monogr. 35:1-35. 1965.37. Diablo Canyon Power Plant Thermal Effects Monitoring Program Analysis Report;Chapter 1: Changes in the marine environment resulting from the Diablo Canyon Power Plant thermal discharge.

Prepared by Tenera Environmental Inc. for Pacific Gas and Electric Company, San Francisco, California.

1997.38. Diablo Canyon Power Plant Receiving Water Monitoring Program: 1995-1998 Progress Report. Prepared by Tenera Environmental Inc. for Pacific Gas and Electric Company, San Francisco, California.

1999.39. Diablo Canyon Power Plant Receiving Water Monitoring Program: 1995-2002 Analysis Report. Prepared by Tenera Environmental Inc. for Pacific Gas and Electric Company, San Francisco, California.

2002.40. Diablo Canyon Power Plant NPDES Receiving Water Monitoring Program: 2007 Annual Report. Prepared by Tenera Environmental Inc. for Pacific Gas and Electric Company, San Francisco, California.

2008.41 .EGR~iad maaemn iml~a~n o ifs no~ take Fespes ari a011~tin -Sebastes ralfdish in California. C- CI Rep. 40. Pp. 107- 117-.4999.Deleted in Amendment 1.42. Species composition of rocky intertidal and subtidal fish assemblages in central and northern California, British Columbia-southeast Alaska. Yoshiyama, R. M., C.Sassaman, and R. N. Lea. Bulletin of the Southern California Academy of Science 86: 136-144. 1987.43. Results of Fish on DCPP Lands: email memo dated July 31, 2002 addressed to M6. Sally Krenn, PG&E= Senior Biologist froM H. Fish, Biologist, National Marine Fisheries Se....e. Deleted in Amendment 1.44. North Ranch Managed Access: Comprehensive Baseline Inventory.

Pacific Gas and Electric Company. July 2006.45. Montano de Oro State Park General Plan, California State Park and Recreation Commission, June 1988.46. Potential Effects of Storm Water Discharges on Diablo Creek, Pacific Gas and Electric Company, 1986.Diablo Canyon Power Plant Page 2.14-4 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 47. Waterfshed Information Tool!, Caiwater Version 2.2. California Department of For.estry and Fire ProteG*tin.

Ma',' 2004.Deleted in Amendment 1.48. Year 2 Monitoring Report for the Coon Creek Culvert Removal and Steelhead Passage Enhancement Proiect. City of San Luis Obispo, Natural Resources Program. 2006.49. Critical Habitat Unit SLO-3, 53492 Federal Register / Vol. 73, No. 180 / Tuesday, /Proposed Rules. Fish and Wildlife Service. Department of the Interior.

September 16, 2008.50. Diablo Canyon Land Stewardship Program Pecho Ranch Grazing Capacity Report. Fry, M. 1991.51. Diablo Canyon Re-Licensing Transmission Corridor Terrestrial Ecology Technical Report. Garcia and Associates.

November 2008.52. Grazing Management:

An Ecological Perspective.

Heitschmidt, R.K. and Stuth, J.W. Timber Press, Inc., Portland Oregon. 259 pp. 1991.53. Endangered and Threatened species: Final listing Determinations for 10 Distinct Population Segments of West Coast Steelhead.

National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA). Federal Register / Vol. 71, No. 3, pp 834 -862.54. National Marine Fisherfies SeFV*Ge .(HMF). http :!Www.;nmfs.n oaa.govl.

Accese Septemb, , 2008.Deleted in Amendment 1.55. 52488 Federal Register / Vol. 70, No. 170 / Friday, September 2, 2005 / Rules and Regulations.

National Oceanic and Atmospheric Administration (NOAA).Department of Commerce.

2005.56. Holistic Resource Management.

Savory, A. Island Press, Covelo California.

558 pp. 1988.57. A Grazing Management Plan for the Pecho Ranch. Stechman, J.V. 1978.58. U. S .Fish , AI;I,4n;d Wildlif II I( E'SAIQ\200&Deleted in Amendment 1.59. Observations of the Sea Otter, Enhydra lutris, Population Between Point Buchon and Rattlesnake Creek, San Luis Obispo, California, January through December 1994. Benech, S.V., Benech Biological and Associates, Ventura, California.

1995.Diablo Canyon Power Plant Page 2.14-5 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 60. Walker's Mammals of the World, Fifth Edition, Vol. I1. Nowak, R.M. The John's Hopkins University Press. 1991.61. Diablo Canyon Sensitive Resources Inventory:

Part 2. Pacific Gas and Electric Company. 1997.62. Threatened and Endangered Species Evaluation for Operating Commercial Nuclear Power Plants. Sackschewsky, M.R. U.S. Department of Energy. January 2004.63. An examination of four potential etiologies of WS: Temperature, food availability, renal coccidia, and Rickettsiales-like procaryotes.

Third International Abalone Symposium:

Biology, Fisheries, and Culture. Friedman, C. S., W. Biggs, J. D.Shields, P. L. Haaker, C. Chun, and R. P. Hedrick. October 1997.64. 'Candidatus Xenohaliotis californiensis', a newly described pathogen of abalone, Haliotis spp., along the west coast of North America. International Journal of Systematic and Evolutionary Microbiology.

Friedman, C. S., K. B. Andree, K. A.Beauchamp, J. D. Moore, T. T. Robbins, J. D. Shields, and R. P. Hedrick. 2000.65. Mass mortality and withering syndrome in black abalone, Haliotis cracherodii, in California.

Haaker, P.L., D.O. Parker, H. Togstad, D.V. Richards, G.E. Davis, and C.S. Friedman.

1992.66. Compendium of thermal effects laboratory studies. Vols. 1, 2, and 3. Pacific Gas and Electric Company. 1982.67. Continued declines of black abalone along the coast of California:

are mass mortalities related to El Niho events?. Marine Ecology Progress Series. Raimondi, P. T., C. M. Wilson, R. F. Ambrose, J. M. Engle, and T. E. Minchinton.

2002.68. Investigations into a mortality among populations of the California black abalone, Haliotis cracherodii, on the central coast of California.

Steinbeck, J. R., J. M.Groff, C. S. Friedman, T. McDowell, and R. P. Hedrick. 1992.69. Geographic variation and mass mortality in the black abalone: the roles of development and ecology. Tissot, B.N. 1990.70. Status Review Report for Black Abalone (Haliotis cracherodii Leach, 1814).National Oceanic and Atmospheric Administration, National Marine Fisheries Service. VanBlaricom, G., M. Neuman, J. Butler, A. DeVogelaere, R. Gustafson, C. Mobley, D. Richards, S. Rumsey, and B. Taylor. 2009.71. Essential Fish Habitat Technical Data Report. Prepared by Tenera Environmental Inc. for Pacific Gas and Electric Company, San Francisco, California.

August 2009.Diablo Canyon Power Plant Page 2.14-6 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 72. Office Instruction LIC-203, Procedural Guidance for Preparing Environmental Assessments and Considering Environmental Issues. Revision 1. Nuclear Reactor Regulation.

May 24, 2004.73. Population Projections for California and Its Counties 2000-2050.

State of California, Department of Finance. Sacramento, California.

January 2013July 24W0. Accessed at: http://www.dof ca.gov/research/demographic/reports/projectionsip-1/74. 2000 PHC-T-3, Ranking Tables for Metropolitan Areas: 1990 and 2000. U.S.Census Bureau. April 2001.75. Procedural Guidance for Preparing Environmental Assessments and Considering Environmental Issues. U.S. Nuclear Regulatory Commission.

2001.76. Policy Statement on the Treatment of Environmental Justice Matters in NRC Regulatory and Licensing Actions. 69 Fed. Reg. 52040. U.S. Nuclear Regulatory Commission.

August 24, 2004.77. NUREG-1437:

Generic Environmental Impact Statement for License Renewal of Nuclear Plants, Volumes 1 and 2. U. S. Nuclear Regulatory Commission.

Washington, D.C. May 1996.78. Tax Rate Information and Assessed Valuations, 2004-2005.

County of San Luis Obispo. 2005.79. Tax Rate Information and Assessed Valuations, 2005-2006.

County of San Luis Obispo. 2006.80. Property Tax Perspective:

Fiscal year July 1, 2006 to June 30, 2007. County of San Luis Obispo. 2007.81. Property Tax Perspective:

Fiscal year July 1, 2007 to June 30, 2008. County of San Luis Obispo. 2008.82. Property Tax Perspective:

Fiscal year July 1, 2008 to June 30, 2009. County of San Luis Obispo. 2009.83. 8 Year Analysis of DCPP Fiscal Year Taxes. D. Padilla. Pacific Gas and Electric Company. June 19, 2009.84. San Luis Obispo County, California Website.http://www.slocounty.ca.gov/planning/landplanning.htm.

Accessed 6/30/2009.

85. Santa Barbara County, California Website.http://Iongrange.sbcountyplanning.org/about-landuse.php.

Accessed 6/30/2009.

Diablo Canyon Power Plant Page 2.14-7 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 86. Diablo Canyon Independent Spent Fuel Storage Installation Environmental Report Amendment

1. Pacific Gas and Electric Company. October 2002.87. Peserscs, w ....in,. nh-,s..,, and ..........

Status.. loo .9 ..... Geoon 199 .u m.....Tape File 1 (STF 1)100 I Percet Data. U.S Cen.. ..Bureau. 1990.Deletedin Amendment 1.88. Persons, Housing Units, and Occupancy Status. Census 2000 Summary File 1 (SF 1) 100-Percent Data.U.S.

Census Bureau. 2000.89. Persons, Housing Units, Occupancy Status, and Median Housing Value: 1990.Census 1990 Summary Tape File 3 (STF 3) Sample Data. U.S. Census Bureau.1990.90. Persons, Housing Units, Occupancy Status, and Median Housing Value: 2000.Census 2000 Summary Tape File 3 (STF 3) Sample Data. U.S. Census Bureau.2000.91. Diablo Canyon Independent Spent Fuel Storage Installation (ISFSI) Final Environmental Impact Report. County of San Luis Obispo. Prepared by Mrine Research Specialists (MRS) for the County of San Luis Obispo, Ventura, California.

January 2004.92. U. S. Environmental Protection Agency Local Drinking Water Information.

United States Environmental Protection Agency. April 2009. Available online at http://www.epa.gov/enviro/html/sdwis/sdwis_query.

html. Accessed on 6/30/2009.

93. GCT PHID .... Ie-.eRiW.

I,,,-, '6,,. A^a ..Dn,,, L2000. G,.... 2000 Su..mmy File I (SF 1)100 Percent Data.U.S.

Census Bureau. 2000.Deletedin Amendment 1.94. Email from Johannes, Isabella to Albright, Michelle M. Dated 10/10/2008.

Titled FW: San Luis Obispo County Water Suppliers.

95. National Center for Education Statistics.

Available online at http://nces.ed.gov/.

Accessed 06/30/2009.

96. Area Designation Maps/ State and National.

California Air Resources Board. Last updated 02/021290906/2013.

http://www.arb.ca.gov/desig/adm/adm.htm.

Accessed 6/301200909/03/2014.

97. Regulatory Guide 1.23, Safety Guide 23, Onsite Meteorological Programs, U. S.Nuclear Regulatory Commission.

February 1972.Diablo Canyon Power Plant Page 2.14-8 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 98. Complex Hunter-Gatherer-Fishers of Prehistoric California:

Chiefs, Specialists, and Maritime Adaptations of the Channel Islands. Arnold. 1992 57:60-84.American Antiquity.

99. Archaeological Excavations at CA-SLO-7 and CA-SLO-8, Diablo Canyon, San Luis Obispo County, California.

Breschini and Haversat.

Archaeological Consulting.

Salinas, California.

Submitted to Pacific Gas and Electric Company, San Francisco.

1988.100. Archaeological Survey on Portions of the North Property Coastal Shelf, Diablo Canyon Power Plant, San Luis Obispo, California.

Davis-King.

Submitted to Pacific Gas and Electric Company. San Francisco, California.

1991.101. Archaeological Survey on Portions of Diablo Canyon Nuclear Power Plant, San Luis Obispo, California.

Davis-King and Williams.

Submitted to Pacific Gas and Electric Company. San Francisco, California Power Plant South Property, San Luis Obispo. 1992.102. National Register of Historic Places Nomination form for the Rancho Canada de los Osos y Pecho y Islay Prehistoric Archaeological Site District.

Denardo and Texier. San Luis Obispo County, California.

2007.103. The Middle Holocene on the Western Santa Barbara Coast. In The Archaeology of the California Coast during the Middle Holocene, Erlandson.

edited by J. M.Erlandson and M. A. Glassow. Perspectives in California Archaeology 4:91-109.UCLA Institute of Archaeology.

1997.104. Cultural Continuity, Change, and Complexity on the California Coast. In Catalysts to Complexity:

The Late Holocene Along the California Coast. Erlandson.

edited by J. M. Erlandson and T. L. Jones, pp. 320-329. Perspectives in California Archaeology, UCLA Institute of Archaeology.

2002.105. San Luis Obispo County, City and Telephone Directory.

General Directories.

Los Angeles and San Francisco, California.

1938.106. Transitions in Prehistoric Diet, Mobility, Exchange, and Social Organization alonq California's Big Sur Coast. Terry L. Jones Ph.D. dissertation, Department of Anthropology, University of California, Davis. 1995.Gear, "l A^,*-a*rnea.

.P.. .n and ilcOxvnR.

53:36 51. Antiquity.

1988.107. 9000 Years of Prehistory at Diablo Canyon, San Luis Obispo County, California.

Greenwood, Roberta. San Luis Obispo County Archaeological Society, Occasional Paper No. 7. 1972.Diablo Canyon Power Plant Page 2.14-9 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 108. Archaeological Status of SLO-2, Diablo Canyon Nuclear Power Generating Plant.Greenwood, Roberta. San Francisco.

1974.109. Surface Survey and Evaluation, SLO-2 at Diablo Canyon. Greenwood, Roberta.Prepared for Pacific Gas and Electric Company. 1978.110. Background Research Regarding Diablo Canyon and SLO-2. Greenwood, Roberta. Prepared for Pacific Gas and Electric Company. 1978.111. Archaeological Resources Management Plan: Diablo Canyon Site. Greenwood, Roberta S. Prepared for Pacific Gas and Electric Company. April1980.

112. National Register of Historic Places Nomination form for the Rancho Canada de los Osos y Pecho y Islay Prehistoric Archaeological Site District.

Greenwood.

San Luis Obispo County, California.

1982.113. Archaeological Resources Located on Parcel P, Diablo Canyon, San Luis Obispo County, California.

Holson, John. Prepared for Pacific Gas and Electric Company.1996.114. National Register of Historic Places Nomination form for the Rancho Canada de los Osos y Pecho y Islay Prehistoric Archaeological Site District.

Hoover. San Luis Obispo County, California.

1974.115. Chumash Social Organization:

An Ethnohistoric Perspective.

Ph.D. dissertation.

Johnson, Department of Anthropology, University of California, Santa Barbara.University Microfilms, Ann Arbor, Michigan.

1988.116. Lookinq Backward into the Middle Kinqdom: San Luis Obispo County. Krieger.Windsor Publications.

Northridge, California.

1988.117. Somnolent Cape: The story of the Pecho Coast. La Vista 3(2):2-31.

Miossi. San Luis Obispo County Historical Society. San Luis Obispo, California.

1973.118. History of San Luis Obispo County and Environs, California, with Biographical Sketches.

Morrison and Hayden. Historic Record Company, Los Angeles, California.

1917.119. Surface Archaeology of the Pecho Coast. The Masterkey, Volume 25, No. 6: 196-200, Pilling, Arnold R. Los Angeles. 1951.120. Cultural Resources of Pacific Gas & Electric Company's Diablo Canyon North Ranch Property, San Luis Obispo County, California.

Price, Baloian and Lloyd.Applied EarthWorks, Inc., Fresno, California.

Submitted to Pacific Gas and Electric Company. San Francisco, California.

2006.Diablo Canyon Power Plant Page 2.14-10 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 121. Cultural Resources Technical Report for the Diablo Canyon Relicensing Feasibility Study. Price and Trumbly. Applied Earthworks, Inc. and Pacific Gas and Electric Company. 2008.122. An Archaeological Reconnaissance of the Diablo Creek Vicinity, San Luis Obispo County, California.

Riddell, Frances A. Prepared for Pacific Gas and Electric Company. 1966.123. History of San Luis Obispo County, California, with Illustrations and Biographical Sketches of its Prominent Men and Pioneers.

Thompson and West. San Francisco, California.

1883.124. National Register Information System. U.S. Department of the Interior.

20072014.Available at http://www.nr.nps.gov/.

Accessed August 829, 2-0072014.

125. A Cultural Resources Survey of Portions of Diablo Canyon Nuclear Power Plant South Property, San Luis Obispo County, California.

Wickstrom and Tremaine.Prepared for Pacific Gas and Electric Company, San Francisco, California.

1993.126. Results of a Cultural Resource Evaluation for the North Property Access Road, Diablo Canyon Power Plant, San Luis Obispo County, California.

Wilcoxon.Archaeological Consultants, Goleta, California.

Submitted to Pacific Gas and Electric Company, San Francisco, California.

1988.127. Western Chumash Prehistory:

Resource Use and Settlement in the Santa Ynez River Valley. Woodman, J. Rudolph and T. Rudolph. Science Applications International Corporation, Santa Barbara, California.

Prepared for the Unocal Corporation.

Submitted to U.S. Army Corps of Engineers, Los Angeles District.1991.128. Climatic Variability:

A Compounding Factor Causing Culture Change among Prehistoric Coastal Populations.

Larson, Michaelson, and Walker. Paper presented at the 49th Annual Meeting of the Society for American Archaeology, Atlanta, Georgia. 1989.129. MO,,rr, DO,,,

...,n D ,,, r.. .DI.... DPn, D,,m,,, , 130.131.EnAergy Cmiio.Aalbcat.

YA~.energy.Ga .gov/sitingcases/morrobayl.

Last UP 12008. Accessed on n n3012009.Deleted in Amendment 1.http -//www. dyncgy. GO mlabout- dynegyip ower generation f-acilities asp. Accessed on 6M0=0Deleted in Amendment 1.GG-1T001 PA,4-. Me laR ,,oushold IReme OiR 2008 Ad;,s-te, 2006 2008 American Community Surwey 3 Year Estimate.

U.S. Census Bureau:-Amcrican Community Su..ey.Deleted in Amendment 1.Diablo Canyon Power Plant Page 2.14-11 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 132. 2007-2012 Census of Agriculture

-California State and County Data. Volume 1, Geographic Area Series, Part 5. Table 7. Hired Farm Labor -Workers and Payroll: 20072012.

US Department of Agriculture, National Agricultural Statistics Service.Issued Februa.y 2009. Updated September, 200-92012.

133. Diablo Canyon Power Plant NPDES Receiving Water Monitoring Program: 2013 Annual Report. Prepared by Tenera Environmental Inc. for Pacific Gas and Electric Company, San Francisco, Califomia.

2014.134. Coon Creek Culvert Removal and Steelhead Passage Enhancement Proiect: Year 3 Monitoring Report. City of San Luis Obispo, Natural Resource Program.2008.135. Managed Access Summary Monitoring ReOort for 2007 Through 2012 Pt. Buchon Trail. Prepared by Pacific Gas & Electric Company. 2013.136. Diablo Creek Security Proiect Vegetation Trimming:

Proiect Completion Report.Prepared by Terra Verde Environmental Consulting, LLC, San Luis Obispo CA for Pacific Gas & Electric Company. 2012.137. Endangered and Threatened Wildlife and Plants: Reclassifying the Tidewater Goby from Endangered to Threatened.

United States Fish and Wildlife Service (USFWS), Dept. of the Interior.

Federal Register!

Vol. 79, No. 49, pp 14340 -14362.138. Endangered and Threatened Wildlife and Plants: Desiqnation of Critical Habitat for Tidewater Goby. United States Fish and Wildlife Service (USFWS), Dept. of the Interior.

Federal Register!

Vol. 78, No. 25, pp 8746 -8818.139. Recovery Plan for the Tidewater Goby. United States Fish and Wildlife Service (USFWS), Portland, Oregon. Vi + 199 pp. 2005.140. Inland Fishes of California.

University of Califomia Press, Berkley, CA. 502 pp.2002.141. Marine Miqration of North American Green Sturgeon.

Lindley et al., Transactions of the American Fisheries Society. 137:182-194.

2008.142. 2010 P1, Total Population:

Census Summary File 1 (San Luis Obispo County.CA). U.S. Census Bureau. 2010.143. CPH-T-5 Population Change for Metropolitan and Micropolitan Statistical Areas in the United States and Puerto Rico: 2000 to 2010. U.S. Census Bureau.144. CPH-2-6 Population and Housing Unit Counts, California:

2010. 2010 Census of Population and Housing. U.S. Census Bureau.Diablo Canyon Power Plant Page 2.14-12 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 145. LIC-203, Revision 3: Procedural Guidance for Preparing Categorical Exclusions, Environmental Assessments, and Considering Environmental Issues. NRR Office Instruction.

U.S. Nuclear Regulatory Commission, Office of Nuclear Reactor Regulation.

2013.146. DP03 Selected Economic Characteristics:

2007-2011 American Community Survey 5-Year Estimates.

U.S. Census Bureau.147. Property Tax Perspective:

Fiscal year July 1, 2013 to June 30, 2014. County of San Luis Obispo. 2014.148. Economic Benefits of Diablo Canyon Power Plant: An Economic Impact Study June 2013. Prepared for Pacific Gas & Electric Company. 2013 149. Property Tax Perspective:

Fiscal year July 1, 2009 to June 30, 2010. County of San Luis Obispo. 2010.150. Property Tax Perspective:

Fiscal year July 1, 2010 to June 30, 2011. County of San Luis Obispo. 2011.151. Property Tax Perspective:

Fiscal year July 1. 2011 to June 30, 2012. County of San Luis Obispo. 2012.152. Property Tax Perspective:

Fiscal year July 1, 2012 to June 30, 2013. County of San Luis Obispo. 2013.153. Final Report on the Cal Poly 2009 Archaeological Field Class Investigation at CA-SLO-1370/H Point Buchon, San Luis Obispo County, California.

Hadick, K., T.L.Jones, E. Cerles, D. Krause, S. Kuri, L. May, R. Munoz and M. Roth. 2012.154. Archaeological Investigations at Tom's Pond (CA-SLO-1366/H), Diablo Canyon Lands, San Luis Obispo County, California:

Final Report of the 2011 Cal Poly Field School and Mitigation Program. Codding, B.F., T.L. Jones, R.S. Bakhtiary, S. Law, J.F. Porcasi and K. Gobalet. 2013.155. A Slice of Time at Diablo Canyon: Archaeological Sampling at CA-SLO-61 San Luis Obispo County, California.

Price, B.A., A.M. Munns, G. Hawley, T.L. Joslin, D.R. Harro, and R.L. McKim. 2012.156. Nonroutine Report of Planned Disturbance of Archaeological Site SLO-2. DCL-12-080. Welsh, James M. August 21, 2012.157. Summary of Cultural Resources Management Procedures PG&E Onshore Central Coastal California Seismic Imaging Proiect. Haydu, D. 2011.Diablo Canyon Power Plant Page 2.14-13 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 158. Technical Memorandum:

PG&E Onshore Seismic Proiect, 2012 Season Summary of Cultural Resource Monitoring and Impacts from Geoseismic Operations.

Haydu, D. 2012.159. Reflections of Japanese Farming Along the Pecho Coast of California.

Whiteman J. 2013.160. Dynerqy officially closes the Morro Bay Power Plant. February 5, 2014. Nick Wilson. The Tribune. San Luis Obispo. Accessed on June 27, 2014 at: http://www.dyne-qy.com/about dyne-qy/power -generation facilities.asp 161. Energy Almanac, Database of Califomia Power Plants. California Energy Commission.

May 1, 2014. Accessed on May 7, 2014 at: http://energyalmanac.

ca. gov/powerplants/index.

html 162. Permit Compliance System (PCS) and Integrated Compliance Information System (ICIS) databases in Envirofacts.

United States Environmental Protection Agency.March 26, 2014. Accessed on May 7, 2014 at: http://www.epa.

gov/enviro/facts/pcs-icis/search.html 163. Report on the Analysis of the Shoreline Fault Zone, Central Coastal California.

Report to the U.S. Nuclear Regulatory Commission.

ADAMS Accession

1. ML1 10140400 and ML 110140425.

Pacific Gas and Electric Company. 2011.Available at: http://adams.nrc..qov/wba/

164. Diablo Canyon Power Plant Units 1 & 2 Final Safety Analysis Report Update, Section 2.5. Geology and Seismology.

Revision 21. Pacific Gas and Electric Company. 2013.165. San Luis Obispo County Tsunami Inundation Maps for Emergency Planning[Cambria, Cayucos, Cayucos West, Morro Bay North, Morrow Bay South, Oceano, Pismo Beach, and Port San Luis Quadrangles.

California Geological Survey. 2009. Accessed at: http://www.

conservation.ca.gqov/cgs/eoloqic hazards/Tsunami/Inundation Maps!SanLuisObispo/Pa-gesiSanLuisObispo.

aspx 166. Diablo Canyon Power Plant Units 1 & 2 Final Safety Analysis Report Update, Section 2.4, Hydrologic Engineering.

Revision 19. Pacific Gas and Electric Company. 2010.167. Global Historical Tsunami Database.

doi: 10. 7289/V5PN93H7.

National Geophysical Data Center! World Data Service, National Geophysical Data Center, NOAA. Accessed February 24, 2014 at: http ://www.ngdc.noaa.gov/hazardlsu db.shtml Diablo Canyon Power Plant Page 2.14-14 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 168. Draft Sea-Level Rise Policy Guidance Public Review Draft October 14, 2013.California Coastal Commission.

2013. Accessed at: http://www.

coastal. ca. gov/climate/SLRguidance.

html 169. Soil Investiqation, Intake and Discharge Lines, Borrow Area, and Switchyards for Unit 1. Diablo Canyon Site San Luis Obispo County, Califomia.

Harding Miller Lawson Associates.

1968.170. Assessment of Slope Stability Near the Diablo Canyon Power Plant. Response to NRC Request of January 31, 1997. Pacific Gas and Electric Company. 1997.171. Preliminary Geotechnical Exploration for Parking Lot and Tower DCSF Sites, Phase 2 Siting Study, PG&E Diablo Canyon Power Plant Property.

Prepared for PG&E Geosciences Department.

William Lettis & Associates, Inc. 1997.172. Application for Resource Lease, Permit or Other Entitlement for Use, Central Coastal California Seismic Imaging Proiect. Application submittal to California State Lands Commission including Attachments I through 4. Pacific Gas and Electric Company. April 2011.173. Fault-Rupture Hazard Zones in California.

Special Publication 42, Interim Revision.

California Geological Survey. 2007. Accessed on February 7, 2012, at: ftp ://ftp. consrv. ca. gov/pub/dmg/pubs/sp/sp4 2.pdf 174. United States Geological Survey 2013. Online website for Earthquakes Hazards Program, Circular Area Earthquake Search tool (center latitude 35.21, center longitude

-120.85, outside radius -160.93). Site accessed May 7, 2014, at: http://earthquake.

usgs. gov/earthquakes/search/

175. Web Soil Survey Soil Map -San Luis Obispo County, Coastal Part. U.S.Department of Agriculture.

Natural Resources Conservation Service. 2011.Accessed at: http:l/websoilsurvey.nrcs.usda.

gov/app/HomePage.htm 176. Final Report -PG&E Diablo Canyon Power Plant Shoreline Retreat Study, Patton Cove. Prepared for Pacific Gas and Electric Company. William Lettis &Associates, Inc. June 8, 2004. Unpublished consulting report.177. Map -Acres of Prime Farmland, 1997. December 13, 2000. Natural Resources Conservation Service. Accessed on May 7, 2014 at: http://www.nrcs.usda.

gov/wps/portal/nrcs/detail/soils/surveylgeo/?cid=nrcs143 01 3752 Diablo Canyon Power Plant Page 2.14-15 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 178. Mineral Land Classification:

Portland Cement Concrete Aggregate and Active Mines of all other Mineral Commodities in the San Luis Obispo-Santa Barbara Production-Consumption Region, 1989. R. V. Miller, J. Wiedenheft-Cole, and J. P.Clinkenbeard.

1989. California Department of Mines and Geology (now the California Geological Survey) Special Report 162.179. Hanson, K.L., and Lettis, W.R., 1994, Estimated Pleistocene slip rate for the San Simeon Fault Zone, south- central coastal California, in Alterrnan, I.B., McMullen, R. B., Cluff, L. S., and Slemmons, D. B., eds., Seismotectonics of the central California Coast Ranges: Geological Society of America Special Paper 292, p.133-150.180. Johnson, S. Y., Hartwell, S.R., Dartnell, P. 2014, Offset of Latest Pleistocene Shoreface Reveals Slip Rate on the Hosgnn Strike-Slip Fault, Offshore Central California:

Bulletin of the Seismological Society of America, doi:10. 1785/0120130257 181. Pacific Gas and Electric Company (PG&E), 2011. Shoreline Fault Zone Report: Report on the Analysis of the Shoreline Fault Zone, Central Coastal California, Report to the U.S. Nuclear Regulatory Commission, January. 2011: Available at http://www.pge.

com/myhome/edusafety/

systemworks/dcpp/shorelinereport.

182. California County Housing. San Luis Obispo and Santa Barbara Counties.USA.com.

2014. Accessed on October 27, 2014 at: USA.com 183. National Center for Education Statistics.

Accessed at.'http://nces.ed.gov/ccd/districtsearch/district list. asp ?Search= I &State=06&Count y=San+Luis+Obispo+County 184. Endangered and Threatened Wildlife and Plants: Endangered or Threatened Status for Five Plants and the Morro Shoulderband Snail from Western San Luis Obispo County, California.

U.S. Fish and Wildlife Service, Dept. of the Interior.Federal Register!

Vol. 59, No. 240, pp 64613 -64623.185. Recovery Plan for the Morro Shoulderband Snail and Four Plants from Western San Luis Obispo County, California.

U.S. Fish and Wildlife Service, Dept. of the Interior.

1998 186. Endangered and Threatened Wildlife and Plants: Final Determination of Critical Habitat for the Morro Shoulderband Snail (Helminthoglypta walkeriana).

U.S.Fish and Wildlife Service, Dept. of the Interior.

Federal Register ! Vol. 66, No. 26, pp 9233 -9246.Diablo Canyon Power Plant Page 2.14-16 License Renewal Application I

APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I 187. Endangered and Threatened Wildlife and Plants: Determination of Threatened Status for the Califomia Tiqer Salamander, and Special Rule Exemption for Existing Routine Ranching Activities.

U.S. Fish and Wildlife Service, Dept. of the Interior.

Federal Register!

Vol. 69, No. 149, pp 47212 -47248.188. Endangered and Threatened Wildlife and Plants: Designation of Critical Habitat for the Califonmia Tiger Salamander, Central Population.

U.S. Fish and Wildlife Service, Dept. of the Interior.

Federal Register!

Vol. 70, No. 162, pp 49380 -49458.189. Species List Request for the Proposed Diablo Canyon Power Plant License Renewal, San Luis Obispo County, California.

U.S. Fish and Wildlife Service, Dept. of the Interior.

May 13, 2010.190. Response to Request for List of Protected Species and Essential Fish Habitat Within the Area Under Evaluation for the Diablo Canyon Nuclear Power Plant, Units I and 2, License Renewal Application Review. National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Southwest Region.May 10, 2010.191. License Agreement for Grazing and Agricultural Purposes.

PG&E and William J.Mello and Frank Mello, Jr. October 27, 2011.192. Final Environmental Impact Report for the Cental Coastal California Seismic Imaging Proiect, July 2012. California State Lands Commission.

193. A Biogeographic Assessment off NorthiCental California:

In Support of the Nation Marine Sanctuaries of Cordell Bank, Gulf of the Farallones and Monterey Bay.National Centers for Coastal Ocean Science, NOAA. 2007. Accessed at: http ://ccma.nos.noaa. .gov/ecosystems/sanctuaries/califomia/html/data/pdfs/CAPh 2FrontMatter.pdf 194. Olive Ridley Turtle Species Profile. National Marine Fisheries Service, NOAA.Accessed December 2, 2014 at: http ://www.nmfs.noaa.

gov/pr/species/turtles/ofiveridley.

htm.195. Olive Ridley Sea Turtle 5 Year Review: Summary and Evalutation.

National Marine Fisheries Service, NOAA and U.S. Fish and Wildlife Service, Dept. of the Interior.

Accessed December 2, 2014 at: http ://www.nmfs.noaa.gov/pr/pdfs/species/oliveridley 5yearreview.

pdf 196. Central Coastal California Seismic Imaging Proiect Report. Pacific Gas and Electric Company. September 2014. Available at Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML14260A024 through ML 14260A069.

Diablo Canyon Power Plant Page 2.14-17 License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 197. The California ISO Controlled Grid Generation Queue -CISO Active. Dated 11/21/2014.

California Independent System Operator.

Accessed on 12103/2014 at: http://www.caiso.com/planning/Pages/Generatorlnterconnection/Default.aspx 198. Facility Operating Licenses DPR-80 and DPR-82 Diablo Canyon Nuclear Generating Station, Units I and 2. Appendix B: Environmental Protection Plan (Non-Radiological).

Pacific Gas & Electric Company. August 1985.199. Endangered and Threatened Wildlife and Plants: Final Rulemaking to Designate Critical Habitat for Black Abalone. National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA). Federal Register/Vol. 76, No. 208, pp 66806 -66844.Diablo Canyon Power Plant Page 2.14-18 License Renewal Application I

APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-1 Sheet 1 of 19 PHYLOGENETIC LISTING OF INTERTIDAL (I) AND SUBTIDAL (S) MARINE ORGANISMS ASSOCIATED WITH THE DCPP COASTLINE (COMPILED FROM DCPP TEMP)SCIENTIFIC NAME FAMILY / TAXON DISTRIBUTION PLANTS Chrysophyta (golden-brown algae)Chrysophyte unid.diatom chains- u4(eFeet)diatom film Chlorophyta (green algae)Acrosiphonia spp.Bryopsis corticulans Bryopsis hypnoides Bryopsis spp.Chaetomorpha spp.Chlorophyta (bladoer, juv.)Chlorophyte Chlerphyta (fdamenteouunid.)

Cladophora graminea Cladophora spp.Codium fragile subsp. califomicum Codium setchellii Derbesia marina (flamenteus)

Ha~m~icvt ovalig (-Derberia mnarona4 Chrysophyta Chrysophyta Chrysophyta Cladophoraceae Bryopsidaceae Bryopsidaceae Bryopsidaceae Cladophoraceae UlvaGeae Chlorophyta Cladophoraceae Cladophoraceae Codiaceae Codiaceae Derbesiaceae Ulothrix spp.Ulva linza Ulva spp.Phaeophyta (brown algae)Alaria marginata Analipus japonicus brown filament erect Coilodesme californica Colpomenia peregrina Colpomenia spp.f 1 *; A I 'll *; , .C Cystoseira osmundacea Desmarestia ligulata Desmarestia spp.Desmarestia tabacoides Dictyoneurum californicum Dictyota binghamiae Dictyota spp.Ectocarpales Egregia menziesii Endarachne/Petalonia-complex Fucaceae-u.iid.

Fucus gardneri Halorhipis winstonii Haplogloia andersonii Hesperophycus californicus Laminaria ephemera Diablo Canyon Power Plant License Renewal Application dephera Ga9PQa Ulotrichaceae Ulvaceae Ulvaceae Alariaceae Chordariaceae Phaeophyta Dictyosiphonaceae Scytosiphonaceae Scytosiphonaceae"a_ sapp' Scytesiphena' ae Cystoseiraceae Desmarestiaceae Desmarestiaceae Desmarestiaceae Lessoniaceae Dictyotaceae Dictyotaceae Ectocarpaceae Alariaceae Scytosiphonaceae Fucaceae Fucaceae Punctariaceae Chordariaceae Fucaceae Laminariaceae I-S I,S I,S I,S I lI'S I,S I,S I,S I,S I,S I I I S I,S I'S I I I'S I,S I,S S S I'S I,S I,S I,S S S APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-1 Sheet 2 of 19 SCIENTIFIC NAME FAMILY / TAXON DISTRIBUTION Laminaria setchellii Laminaria spp.Laminariales-ui;d.

Leathesia difformis Macrocystis spp.Macrocystis pyrifera Nereocystis luetkeana Pelvetiopsis limitata Petrospongium rugosum Phaeophyta Phaeostrophion irregulare Pterygophora califomica Ralfsia spp.Rosenvingea anthillarumfloFikma Sargassum muticum Scytosiphon dotyi Scytosiphon lomentaria Scytosiphon spp.Silvetia compressa Soranthera ulvoidea Rhodophyta (red algae)Acrosorium ciliolatumuwnGkcaum Ahnfeltiopsis leptophylla Ahnfeltiopsis linearis Ahnfeltiopsis spp.Amplisiphonia pacifica Anisocladella pacifica Antithamnion densum Antithamnion spp.A r,; Laminariaceae Laminariaceae Laminariaceae Corynophlaeaceae Lessoniaceae Lessoniaceae Lessoniaceae Fuaeae Fucaceae Corynophlaeaceae Phaeophyta Dictyosiphonaceae Alariaceae Ralfsiaceae Scytosiphonaceae Cystoseiraceae Scytosiphonaceae Scytosiphonaceae Scytosiphonaceae Fucaceae Punctariaceae Delesseriaceae Phyllophoraceae Phyllophoraceae Phyllophoraceae Rhodomelaceae Delesseriaceae Ceramiaceae Ceramiaceae GermaiaGeae Ceramiaceae Bangiaceae Corallinaceae Corallinaceae Corallinaceae Rhodymeniaceae Delesseriaceae Corallinaceae Gera9inaeeae Ceramiaceae Ceramiaceae Ceramiaceae Ceramiaceae Kallymeniaceae Kallymeniaeae Kallymeniaceae Kallymeniaceae Kallymeniaceae Ceramiaceae Ceramiaceae GeraFA~Geae I'S I,S I'I,-I,S I,S lS I I I,S S I I I,S I'S I'S S S S I'S S I I'S S S I,S S I,S I S I'S I'S I,S I I,S I Antithamnionella pacifica Bangia spp.fUe, ipurpurea Bossiella plumosa Bossiella schmittii Bossiella spp.Botryocladia pseudodichotoma Branchioglossum bipinnatifidum Calliarthron spp.CGalXIrhrn/Bo9si;ll3 rpp.Callithamnion acutum Callithamnion biseriatum Callithamnion pikeanum Callithamnion rupicola Callophyllis crenulata Gagephyflsfrma Callophyllis flabellulata Callophyllis spp.Callophyllis violacea Campylaephora califomica Centroceras clavulatum Cera-miUm eatonianJm Diablo Canyon Power Plant License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 Table 2.2-1 Sheet 3 of 19 SCIENTIFIC NAME FAMILY / TAXON DISTRIBUTION Ceramium spp.Chondracanthus canaliculatus Chondracanthus corymbiferus Chondracanthus harveyanus Chondracanthus spinosus vilans Chondria decipiens Clathromorphum parcum Corallina Corallina spp.Corallina vancouveriensis coralline crust Corallophila eatoniana Cryptopleura lobulifera Cryptopleura ruprechtiana Cryptopleura spp.Cryptopleura violacea Cryptosiphonia woodii Cumagloia andersonli Delesseria decipiens Delesseriaceae (juv.,)DoloseoiaGca Dilsea califomica Endocladia muricata Erythrophyllum delesserioides Farlowia compressa Farlowia mollis Farlowia spp.Fauchea laciniata Fauchea spp.filamentous red algae complex Fryeella gardneri Gastroclonium subarticulatum Gelidium coulteri Gelidium purpurascens Gelidium pusillum Gelidium robustum Gelidium spp.Gloiosiphonia califomica Gracilariopsis andersoniilemaniem*

Grateloupia califomicadeopphera Grateloupia setchellii Grateloupia spp.Griffithsia pacifica Gymnogongrus chiton Halosaccion americanum Halymenia schizymenioides Halymenia spp.Halymenia/Schizymenia spp.-complex Herposiphonia verticillata Hymenena flabelligera Hymenena multiloba Hymenena spp.Ceramiaceae Gigartinaceae Gigartinaceae Gigartinaceae Gigartinaceae Giga~taGeae Rhodomelaceae Corallinaceae Corallinaceae Corallinaceae Corallinaceae Corallinaceae Ceramiaceae Delesseriaceae Delesseriaceae Delesseriaceae Delesseriaceae Dumontiaceae Helminthocladiaceae Delesseriaceae Delesseriaceae Dumontiaceae Endocladiaceae Kallymeniaceae Dumontiaceae Dumontiaceae Dumontiaceae Rhodymeniaceae Rhodymeniaceae Rhodophyta Rhodymeniaceae Champiaceae Gelidiaceae Gelidiaceae Gelidiaceae Gelidiaceae Gelidiaceae Gloiosiphoniaceae Gracilariaceae Cryptonemiaceae Cryptonemiaceae Cryptonemiaceae Ceramiaceae Phyllophoraceae Rhodymeniaceae Cryptonemiaceae Cryptonemiaceae Cryptonemiaceae Rhodomelaceae Delesseriaceae Delesseriaceae Delesseriaceae I'S I,S I,S I,S I,S I I'S I,S I,S I,S I,S I,S I'S I,S I,S I,S IS I I S I,S I I I,S I's I,S I,S S I,S S I,S I,S S I I'S I,S I,S I,S I,S I I'S S I I I'S I'S I I'S I I'S Diablo Canyon Power Plant License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-1 Sheet 4 of 19 SCIENTIFIC NAME FAMILY / TAXON DISTRIBUTION Hymenena spp. (on corallines)

Janczewskia gardneri juv. articulated coralline algae Kallymenia spp.Maripelta rotata Mastocarpus jardinhi Mastocarpus papillatus Mazzaella affinis Mazzaella califomicum Mazzaella flaccida AMazzaella h~torGcarpa Mazzaella leptorhynchos-q 1.1 dq IilacGina

-Mazzaella linearis Mazzaella oregona Mazzaella rosea Mazzaella splendens Mazzaella spp.Mazzaella volans Melobesia mediocris Membranoptera platyphylla Membranoptera spp.Membranoptera tenuis Microcladia borealis Microcladia nalifornica Microcladia coulteri Microcladia spp.Nemalion Neoptilota densa Neoptilota hypnoides Neoptilota spp.Neorhodomela larix Nienburgia andersoniana Nitophyllum northii non-coralline crust Odonthalia floccosa Odonthalia washingtoniensis Opuntiella californica Osmundea blinksii Osmundea spectabilis Osmundea spp.Peysonneliopsis epiphytica Phycodrys isabelliae Phycodrys setchellii Phycodrys spp.Phy,'!ospadix spp'ler Pikea califomica Pikea robusta Pikea spp.Pleonosporium spp.Delesseriaceae Rhodomelaceae Corallinaceae Cryptonemiaceae Rhodymeniaceae Gigartinaceae Gigartinaceae Gigartinaceae Gigartinaceae Gigartinaceae GigartinaGeae Gigartinaceae Gigartinaceae Gigartinaceae Gigartinaceae Gigartinaceae Gigartinaceae Gigartinaceae Gigartinaceae Corallinaceae Delesseriaceae Delesseriaceae Delesseriaceae DeleseF~aeriae Ceramiaceae GePFamqareae Ceramiaceae Ceramiaceae Helminthocladiaceae Ceramiaceae Ceramiaceae Ceramiaceae Rhodomelaceae Delesseriaceae Delesseriaceae Rhodophyta Rhodomelaceae Rhodomelaceae Solieriaceae Rhodomelaceae Rhodomelaceae Rhodomelaceae Nemastomataceae Delesseriaceae Delesseriaceae Delesseriaceae MaginGlfephyta Magnel~phyta Dumontiaceae Dumontiaceae Dumontiaceae Ceramiaceae I,S I I,S S S I I,S I,S I I'S I,S I I,S I,S I,S I'S I I'S S S S S IS J,S IS I,S I I'S I,S S I I'S S I,S I S S I I'S I,S/,s S IS S I'S S I'S I Diablo Canyon Power Plant License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 Table 2.2-1 Sheet 5 of 19 SCIENTIFIC NAME FAMILY / TAXON DISTRIBUTION Pleonosporium squarrulosum Plocamium pacificurn74&g4noum Plocamium spp.Plocamium violaceum Polyneura latissima Polysiphonia hendryi Polysiphonia paniculata Polysiphonia spp.Porphyra nereocystis Porphyra occidentalis Porphyra spp.Prionitis australis Prionitis lanceolata Prionitis stembergiilya&ii Prionitis spp.Ptercladiella caloglossoides Pterochondria woodii var. woodii Pt.eaeGr!dia

...x.. seid~e Pterocladia media Pterosiphonia baileyi Pterosiphonia bipinnata Pterosiphonia dendroidea Pterosiphonia spp.Pterothamnion heteromorphum Pterothamnion spp.Pterothamnion villosum Pugetia firma red algal turf red filaments (prostrate)

Rhodophyta Rhodoptilum plumosum Rhodymenia californica Rhodymenia callophyllidoides Rhodymenia pacifica Rhodymenia spp.Sarcodiotheca gaudichaudii SGhizyrnia, tpiphtica" Schizymenia pacifica Schizymenia spp.Scinaia confusa Scinaia johnstoniae Smithora naiadum Stenogramme interrupta Tiffaniella snyderae Weeksia digitata Weeksia reticulata Weeksia spp.Plantae (vascular plants)Phyllospadix scouleri (incl. rhizome)Phyllospadix spp.Ceramiaceae Plocamiaceae Plocamiaceae Plocamiaceae Delesseriaceae Rhodomelaceae Rhodomelaceae Rhodomelaceae Bangiaceae Bangiaceae Bangiaceae Cryptonemiaceae Cryptonemiaceae Cryptonemiaceae Cryptonemiaceae Gelidiaceae Rhodomelaceae Gelidiaeae Gelidiaceae Rhodomelaceae Rhodomelaceae Rhodomelaceae Rhodomelaceae Ceramiaceae Ceramiaceae Ceramiaceae Kallymeniaceae Rhodophyta Rhodophyta Rhodophyta Dasyaceae Rhodymeniaceae Rhodymeniaceae Rhodymeniaceae Rhodymeniaceae Solieriaceae Nemastomataceae Nemastomataceae NeCastonataceae Chaetangiaceae Chaetang iaceae Erythropeltidaceae Phyllophoraceae Ceramiaceae Dumontiaceae Dumontiaceae Dumontiaceae Magnoliophyta Magnoliophyta S I,S I,S I,S I,S I I I,S S S I,S I,S I,S I,S I,S IS S I5-S S I,S I I,S I,S S S I,S I,S S S I,S S S S I,S I,S I,S I,S S I,S I I'S S S S S S I,S I'S PROTOZOA (protozoans)

Diablo Canyon Power Plant License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 Table 2.2-1 Sheet 6 of 19 SCIENTIFIC NAME Gromia oviformis Quinqueloculina spp.FAMILY / TAXON Protozoa Protozoa DISTRIBUTION I/INVERTEBRA TES Porifera (sponges)Acanthancora cyanocrypta Acamus erithacus Antho karykina Clathria pseudonapya Clathrina spp.Cliona spp.Craniella arb Haliclona spp.Haliclona spp. (poss. permollis)

Leucandra heathi Leucetta losangelensis Leucilla nuttingi Leucosolenia eleanor Leucosolenia spp.Paresperella psila Porifera u-nol- (encrusting)

Porifera unid.Spheciospongia confoederata Tethya californiana Cnidaria (hydroids, anemones)AbietinarialSertularella/Sertularia spp.Aglaophenia spp.Aglaophenia struthionides Anthopleura artemisia Anthopleura elegantissima Anthopleura sola Anthopleura spp.Anthopleura xanthogrammica Anthozoa unid Balanophyllia elegans Cactosoma arenaria Ceriantharia unid.Clavularia spp.Corynactis californica Diadumene spp.Epiactis prolifera Halcampa decemtentaculata hydroid, epiphytic hydroid, thecate Hydroidolina-uni.4 Manania spp.Obelia spp.Paracyathus steamsfi Plumularia spp.Stylantheca porphyra Stylantheca spp.Tubularia spp.Demospongiae Demospongiae Demospongiae Demospongiae Calcarea Demospongiae Demospongiae Demospongiae Demospongiae Calcarea Calcarea Calcarea Calcarea Calcarea Demospongiae Porifera Porifera Demospongiae Demospongiae Hydrozoa Hydrozoa Hydrozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Hydrozoa Hydrozoa Hydrozoa Scyphozoa Hydrozoa Anthozoa Hydrozoa Hydrozoa Hydrozoa Hydrozoa/,S I,S I I S S S I,S I I,S I,S I,S I'S I,S S I'S S I,S I'S I,S I,S S I,S I,S I S I'S I,S I'S I,S S S I,S S I,S I'S S IS I'S S IS S S I I/,S Diablo Canyon Power Plant License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-1 Sheet 7 of 19 SCIENTIFIC NAME FAMILY / TAXON DISTRIBUTION Urticina coriacea Urticina crassicomisfeina Urticina lofotensis Urticina piscivora Urticina spp.Platyhelminthes (flatworms)

Alloioplana califomica Eurylepta califomica Eurylepta spp.NotocornplanaWepkia spp.Platyhelminthes-uni.

Prostheceraeus bellostriatus Pseudoceros montereyensis Stylochus franciscanus Stylochus spp.Nemertea (ribbon worms)Amphiporus imparispinosus Micrura vernili Nemertea unid.Paranemertes peregrina Tubulanus polymorphus Tubulanus sexlineatus Nematoda (round worms)Nematoda Polychaeta (segmented worms)Ampharetidae Aphrodita spp.Capitellidae Chaetopteridae-uni4.

Chaetopterus variopedatus Circeis spir/llum Cirratulidae/Terebellidae unid.Diopatra omata Diopatra spp.Dodecaceria fewkesi Dodecaceria spp.Eudistylia polymorpha Flabelliderma essenbergae Halosydna brevisetosa Hydroides elegans Myxicola infundibulum Neosabellaria cementarium Nereididae-unid.

Nereis grubei Nereis pelagica Nereis spp.Phragmatopoma califomica Phragmatopoma spp.Phyllochaetopterus prolifica Pista pacifica Pista spp.Polychaeta up.4.Diablo Canyon Power Plant License Renewal Application Anthozoa Anthozoa Anthozoa Anthozoa Anthozoa Platyhelminthes Platyhelminthes Platyhelminthes Platyhelminthes Platyhelminthes Platyhelminthes Platyhelminthes Platyhelminthes Platyhelminthes Nemertea Nemertea Nemertea Nemertea Nemertea Nemertea Nematoda Ampharetidae Aphroditidae Capitellidae Chaetopteridae Chaetopteridae Serpulidae Polychaeta Onuphidae Onuphidae Cirratulidae Cirratulidae Sabellidae Nereidae Polynoidae Serpulidae Sabellidae Sabellariidae Nereidae Nereidae Nereidae Nereidae Sabellariidae Sabellarfidae Chaetopteridae Terebellidae Terebellidae Polychaeta I'S I,S I,S S I,S I I,S I,S I I'S S S I I,S I S I,S I I,S I,S S I,S I I I,S I'S S I,S I I,S S I S I,S I,S I I/,s I'S I'S I'S I I'S I'S APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-1 Sheet 8 of 19 SCIENTIFIC NAME FAMILY / TAXON DISTRIBUTION Polynoidae 4nid, Sabella spp.Sabellaria spp.Sabellidae-ui4d.

Salmacina tribranchiata Serpula vermicularis Serpulidae unid-.Serpulidae colonial Spiochaetopterus pottsiostarum Spionidae W.Spirobranchus spinosus Spirorbidae u4d.Spirorbis spp.Streblosoma crassibranchia Terebellidae upWd Mollusca -Gastropoda (snails)Acanthinucella punctulata Acanthinucella spirata Acanthinucella spp.Acmaea mitra AcmaeidaeAemaea spp.Alia carinata Alia spp.Alia tuberosa Amphissa columbiana Amphissa spp.Amphissa versicolor Aptyxis luteopictus Barleeia acuta Barleeia spp.Barleeia haliotiphila BRittimm in ohrinhtii Caesia spp.Callianax biplicata Calliostoma annulatum Calliostoma canaliculatum Calliostoma gloriosum Calliostoma ligatum Calliostoma spp.Calliostoma supragranosum Ceratostoma foliatum Ceratostoma nuttalli Chlorostoma brunnea Chlorostoma funebralis Chlorostoma montereyi Chlorostoma spp.Conus californicus Crepidula perforans Crepidula spp.Crepipatella fingulata Dendropoma lituella Diablo Canyon Power Plant License Renewal Application Polynoidae Sabellidae Sabellaridae Sabellidae Serpulidae Serpulidae Serpulidae Serpulidae Chaetopteridae Spionidae Serpulidae Serpulidae Serpulidae Terebellidae Terebellidae MuricidaeNe MuricidaeNeagastrep MuricidaeNe Archaeogastropoda Archaeogastropoda Neogastropoda Neogastropoda Neogastropoda Neogastropoda Neogastropoda Neogastropoda Neogastropoda Mesogastropoda Mesogastropoda Mesogastropoda Me6Qqa tFPe Neogastropoda Olividae Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda MuricidaeNe Muricidae TrochidaeA,,hae9.a.tro.p.da TrochidaeA, rchaeoeqatropda TrochidaeArchaeogastropoda Conidae Calyptraeidae CalyptraeidaeMe69gastFrpoda Calyptraeidae Mesogastropoda I'S S S I,S I,S I,S I,S I I,S I I,S I,S I,S I I,S I I I St I,S I,S I,S I S I,S I,S I,S I I,S IS I'S I'S S I,S I,S S I,S I, I'S I I'S I'I'S I I'S S I'S APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-1 Sheet 9 of 19 SCIENTIFIC NAME FAMILY / TAXON DISTRIBUTION Dendropoma spp.Diodora aspera Diodora spp.DicrainsessRa Epitonium spp.Epitonium tinctum Epitonium/Opalia spp.Erato spp.Erato vitellina Eulithidium compta Eulithidium pulloides Eulithidium spp.Fissurella volcano Fissurellidea bimaculata Gamotia adunca Gastropoda, neopic Gastropoda, unid.Granulina margaritula Haliotis cracherodii Haliotis rufescens Haliotis spp.Haliotis walallensis Hima mendicamendie H4ma- pp 7 Hipponix spp.Homalopoma baculum Hornalopoma luridum Homalopoma spp.Kelletia kelletii Lacuna marmorata Lacuna spp.Lamellaria diegoensis Lamellarfidae Lirabuccinum dirum Lirobittium eschnchtii Lirobittium spp.Lirularia spp.Littorina keenae Littorina scutulatalL.

plena Littorina spp.Lottia asmi Lottia digitalis Lottia fenestrata Lottia gigantea Lottia insessa Lottia instabilis Lottia limatula Lottia ochracea Lottia paleacea Lottia pelta Lottia persona Lottia scabra Mesogastropoda Archaeogastropoda Archaeogastropoda Archaoogastropoda Epitoniidae Epitoniidae Epitoniidae Mesogastropoda Mesogastropoda Archaeogastropoda PhasianellidaeAFrchaeogatropoda PhasianellidaeArchaeogastropoda Archaeogastropoda Archaeogastropoda CalyptraeidaeMesogastropoda Gastropoda Gastropoda Neogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Neogastropoda Neegasto Mesogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Neogastropoda Mesogastropoda Mesogastropoda Mesogastropoda Mesogastropoda Neogastropoda Mesogastropoda Mesogastropoda Archaeogastropoda Littonnida.Mes-gastrop-da LittodinidaeMeseogatropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda I'S I,S I,S Is I,S I,S I,S I,S S I'S I,S I,S I,S I,S I S I,S I I,S I'S S I'S I, I,S I I,S I,S I,S I,S I'S I,S I S I,S I'S S I'S I I'S I I,S I'S I'S I'I'S I'S I'S I Diablo Canyon Power Plant License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-1 Sheet 10 of 19 SCIENTIFIC NAME FAMILY / TAXON DISTRIBUTION Lottia scutum Lottia spp.Lottia strigatella Lottiidae uwi4 Lucapinella callomarginata Maxwellia santarosana Megathura crenulata Melanella thersites Mitra idae NtGAU a spp.Norrisia norrisi Nucella analoga compressa Nucella Nucella spp.OcinebrinaGOeep atropurpurea Urosalpinx0 eb circumtexta OcinebrinaQaepebr#ia foveolata interfossa OcinebrinaQGenebFia lurida OcinebrinaOGeneb&a spp.Ocinebrina subangulata Odostomia spp.Opalia funiculata Opalia spp.Pomaulax gibberosa Pomaulax undosa Promartynia pulligo Pseudomelatoma torosa Pteropurpura festiva Rictaxis punctocaelatus SearlesWaArnphisaa spp),.Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda Archaeogastropoda MuricidaeNe Archaeogastropoda Mesogastropoda Mitndae Archaeogastropoda MuncidaeNe MuricidaeNee MuricidaeNea MuricidaeNee MuncidaeNee MuricidaeNee MuncidaeNeq Muricidae Neogastropoda Mesogastropoda Mesogastropoda Archaeogastropoda Archaeogastropoda TrochidaeArchaoGqaetFopoda Neogastropoda Muncidae Neogastropoda Mesogastropoda Archaeogastropoda Mesogastropoda Mesogastropoda Mesogastropoda Neogastropoda Mesogastropoda Nudibranchia Nudibranchia Nudibranchia Nudibranchia Nudibranchia Nudibranchia Nudibranchia GoniodordidaeNnudibranchia Aplysiidae Aplysiidaei .id Nudibranchia I,S I,S I,S I,S S I,S S I,S I-S ITS S I I I'S I'S I,S I,S I,S I,S I,S Is I'S I'S I,S I,S S I'S I,S l,s S I'S I I,S S S I I I,S S I,S I'S I'S I'S I'S S I'S S S Serpulorbis squamigerus Trimusculus reticulatus Trivia californiana Trivia solandri Trivia spp.Turbonilla Spp. Urosa!pinx subangulata Velutina velutina Mollusca -Opisthobranchs (sea slugs)Acanthodoris lutea Acanthodoris rhodoceras Aegires albopunctatus Aeolidia papillosa Aeolidiacea unid.Aeolidiella oliviae Aldisa sanguinea Ancula pacifica Aplysia californica Aplysia vaccaria BAbalFiS mentstiva Babakina festiva Diablo Canyon Power Plant License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 Table 2.2-1 Sheet 11 of 19 SCIENTIFIC NAME FAMILY / TAXON DISTRIBUTION Berthella californica Berthella strongi Cadlina flavomaculata Cadlina luteomarginata Cadlina modesta Cadlina spp.Chromodoris macfarlandi Dendronotus albus Dendrodons spp.Dendronotus iris Dendronotus spp.Diaulula sandiegensis Dirona albolineata Doridacea up4 Doriopsilla albopunctata Doriopsilla gemela Doris montereyensis Doris odhneri Doto kya Elysia hedgpethi Flabellina iodinea Flabel/ina spp.Flabellina trilineata Geitodoris heathi Haminoea spp.Hancockia californica Hermissenda crassicornis Hopkinis/a roSacea Laila cockere/li Melibe leonina Mexichromis porterae Navanax inermis Nudibranchia unWd.Okenia angelensis Okenia rosacea Onchidella borealis Peltodoris nobilis Phidiana hiltoni Rostanga pulchra Triopha catalinae Triopha maculata Triopha spp.Tritonia festiva Tylodina fungina Williamia peltoides Mollusca -Polyplacophora (chitons)Callistochiton crassicostatus Cryptochiton steller Cyanoplax dentiens Cyanoplax hartwegii Cyanoplax spp.Ischnochiton radians Notaspidea Notaspidea ChromodondidaeNudibranchia ChromodorididaeN ud ibran-chia ChromodorididaeNudibranhia Chromodonididae ChromodorfdidaeN ud*branhia.

Nudibranchia Dendrodorididae Nudibranchia Nudibranchia Nudibranchia Nudibranchia Nudibranchia Nudibranchia Nudibranchia Nudibranchia Nudibranchia Nudibranchia Sacoglossa Nudibranchia Nudibranchia Nudibranchia Nudibranchia Haminoeid a s a Nudibranchia Nudibranchia Nudibranchia Nudibranchia Chromodorididae Cephalaspidea Nudibranchia Nudibranchia Nudibranchia Basommatophora Nudibranchia Nudibranchia Nudibranchia Nudibranchia Nudibranchia Nudibranchia Nudibranchia Tylodinidae Basommatophora Ischnochitonidae~elyplaceph Polyplacophora Ischnochitonidae Ischnochitonidae Ischnochitonidae Ischnochitonidae S I'S I,S I,S S I'S S S I,S I IS I,S S I,S I,S S/,S S I,S I,S S I I,S S I S I,S 4-ýs I,S S S I,S I I I,S I I,S I,S I,S I,S I,S I'S I's I,S S I,S I,S I Diablo Canyon Power Plant License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-1 Sheet 12 of 19 SCIENTIFIC NAME FAMILY / TAXON DISTRIBUTION Ischnochiton spp.lschnochitonidae-Wid-.

Katharina tunicata Lepidoc;hitona dnten~Lepd,.hitena ,pp.Lepidozona cooperi Lepidozona mertensni Lepidozona spp.Mopalia ciliata Mopalia hinds/i Mopalia lignosa Mopalia muscosa Mopalia spp.Nuttallina californica Nuttallina spp.Placiphorella velata Polyplacophora unid.Stenoplax fallax Stenoplax heathiana Stenoplax spp.Tonicella lineata Mollusca -Bivalvia (clams)Bivalvia Chama arcana Chama pellucida Chama spp.Crassadoma gigantea Epilucina californica Gari californica Glans subquadrata Hiatella arctica Hiatella spp./rusella lame/lifer Kellia laperousii Limaria hemphilli Macoma nasuta Macoma spp.Modiolus capax Modiolus spp.Musculus pygmaeus Mytilidae unid.Mytilimeria nuttalli Mytilus californianus Mytilus galloprovincialis Mytilus spp.Pelecypoda unid.Pholadidae unid.Pododesmus cepio Protothaca laciniata Protothaca staminea Pseudochama spp.Diablo Canyon Power Plant License Renewal Application lschnochitonidae IschnochitonidaePo Polyplacophora Ischnochitonidaele Ischnochitonidael Ischnochitonidael Polyplacophora Polyplacophora Polyplacophora Polyplacophora Polyplacophora IschnochitonidaeP Ischnochitonidaely Polyplacophora Polyplacophora Ischnochitonidael Ischnochitonidael a Ischnochitonidaely Ischnochitonidael Bivalvia Chamidae Bivalvia Bivalvia Bivalvia Bivalvia Bivalvia Bivalvia Bivalvia Bivalvia LimidaeBivakva Tellinidae TellinidaeBvalvia Bivalvia Bivalvia Bivalvia Bivalvia Bivalvia Bivalvia Bivalvia Bivalvia Bivalvia Bivalvia Bivalvia Bivalvia Bivalvia Bivalvia I,S I,S I'S I's I'S I,S I,S I,S I,S I,S I,S I,S I,S I'S I I,S I,S I'I,S I,S I,S I,S I I I,S I,S I'S I'S I I,S I,S I,S I'S I I I'S I'S I'I'S I'S I'S S I I'S APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-1 Sheet 13 of 19 SCIENTIFIC NAME FAMILY / TAXON DISTRIBUTION Septifer bifurcatus Transennella spp.Transennella tantilla Mollusca -Cephalopoda (octopus, squid)Octopus spp.Pycnogonida (sea spiders)Ammothea hilgendorti Nymphopsis spinosissima Pycnogonida-uid.

Pycnogonum stearnsi Crustacea (barnacles, copepods, isopods, Alpheidae uin4 Alpheus clamator Alpheus spp.Amphipoda Anomura uo4 Balanus crenatus Balanus nubilus Balanus spp.Betaeus harfordi Brachyurann Spp.B&aGhyla "Aid Ca cranthennri s CanceFjr bannr Cancer productus CancridaeaF er-GsPP.Candacia spp.Caprellidea Chthamalus fissus Cirolana harfordi Cirolanidae unid.Cirripedia unid.Clausocalanus jobei Crangon nigricauda Crangon spp.Crangon stylirostris Cryptolithodes sitchensis Decapoda uii4 Diptera larvae Exosphaeroma inornata Gammaridea 4 Grapsidae-und.

Hapalogaster cavicauda Hemigrapsus nudus Hemigrapsus oregonensis Hemigrapsus spp.Heptacarpus sitchensis Bivalvia Bivalvia Bivalvia Octopodidae Pycnogonida Pycnogonida Pycnogonida Pycnogonida amphipods, crabs, shrimps)Alpheidae Alpheidae Alpheidae Amphipoda Anomura GCrrpedia BalanidaeGiFipedia BalanidaeirFrpedia BalanidaeiFedia Alpheidae Brachyura GiFripedia 1naehyua GaCnredae GanG~dae Cancridae Cancridae Copepoda Amphipoda ChthamalidaeGiFripedia Isopoda Isopoda Cirripedia Copepoda Crangonidae Crangonidae Crangonidae Lithodidae Decapoda Insecta Isopoda Amphipoda Grapsidae Lithodidae Grapsidae Grapsidae Grapsidae Hippolytidae I,S I I I,S S I,S S I,S S I S I,S I,S I S l'S I'S I,~S S I I,S I I I S I,S I,S S I,S I I S I,S I,S I Diablo Canyon Power Plant License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-1 Sheet 14 of 19 SCIENTIFIC NAME FAMILY / TAXON DISTRIBUTION Heptacarpus spp.Heterocrypta occidentalis Hippolytidae up4 Idotea fewkesi Idotea resecata Idotea spp.Idotea stenops Idotea urotoma Idotea wosnesenskii Isopoda upWd 7 Lebbeus lagunae Lepas anatiferal Ligia occidentalis Lophopanopeus leucomanus heathi Lophopanopeus spp.Loxorhynchus crispatus Loxorhynchus spp.Majidae un:ld Megabalanus califomicus Menesiniella aquila Metacarcinus anthonyi Mimulus foliatus M#ra-dae Natantia wn4 Pachycheles rudis Pachycheles spp.Pachygrapsus crassipes Pagurus spp.Pandalus danae Pandalus spp.Panulirus interruptus Paracalanus parvus Paracerceis cordata Paraconcavus pacificus Paraxanthias taylori Pelia tumida Petrolisthes cinctipes Petrolisthes spp.Photis conchicola Photis spp.Pleustidae Podochela hemphilli Pollicipes polymerus Porcellanidae upi4 Pugettia gracilis Pugettia producta Pugettia richii Pugettia spp.Quadrimaera vigota Romaleon antennarius Romaleon jordani Scyra acutifrons Diablo Canyon Power Plant License Renewal Application Hippolytidae Parthenopidae Hippolytidae Isopoda Isopoda Isopoda Isopoda Isopoda Isopoda Isopoda Hippolytidae Lepadidae Isopoda Xanthidae Xanthidae Majidae Majidae Majidae BalanidaeGiF4pedia Balanidae Cancridae Majidae Majidae Natantia Porcellanidae Porcellanidae Grapsidae Paguridae Pandalidae Pandalidae Palinuridae Copepoda Isopoda Balanidae Xanthidae Majidae Porcellanidae Porcellanidae Isaeidae Isaeidae Amphipoda Majidae Porcellanidae Majidae Majidae Majidae Majidae Amphipoda Cancridae Cancridae Majidae I'S S I,S S I I,S I I'I,S I,S S I I'S I'S I,S I,S I,S I,S I, S I,S I's I,S I,S I,S I,S I I,S S S S S I,S I I'S I S S I I,S I I,S I'S I I,S IS S APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 Table 2.2-1 Sheet 15 of 19 SCIENTIFIC NAME Sphaeromatidae uA4 Spirontocaris spp.Tetraclita rubescens Xanthidae ui~id.Sipuncula (peanut worms)Phascolosoma agassizii Sipuncula uP4d Sipunculidae Themiste pyroides FAMILY / TAXON DISTRIBUTION DISTRIBUTION Isopoda Hippolytidae TetraclitidaeG#Fip9ea Xanthidae Phascolosomatidaegipu Sipuncula Sipunculidae ThemistidaeSipun~ula Bryozoa (moss animals)Barentsia spp. Entoprocta bryozoa ui-. (encrusting)

Bryozoa bryozoa ui-. (erect) Bryozoa bryozoa uii-. (foliose)

Bryozoa bryozoan (epiphytic)

Bryozoa Cauloramphus spiniferum Cheilostomata Entoprocta unid. Entoprocta Eurystomella bilabiata Cheilostomata Flustrella corniculata Ctenostomata Heteropora spp. Cyclostomata Hippodiplosia insculpta Cheilostomata Membranipora spp. Cheilostomata Microporella califomica Cheilostomata Phidolopora pacifica Cheilostomata Phidolopora spp. Cheilostomata Tricellaria spp. Cheilostomata Echinodermata (sea stars, brittle stars, sea cucumbers, sea urchins)Amphiodia occidentalis Ophiuroidea Amphipholis spp.

Amphipholis squamata AmphiuridaeOphkweidea Asteroidea upi- Asteroidea Cucumaria spp. Holothuroidea Dermasterias imbricata Asteroidea Eupentacta quinquesemita Holothuroidea Henricia leviuscula EchinasteridaeAster-eidea Holothuroidea u4 Holothuroidea Leptasterias hexactis AsteriidaeAsteFeihea Leptasterias spp. AsteriidaeAste-eqdea Lissothuria nutriens PsolidaeleHethureida Lytechinus spp. Toxopneustidae Ophiactis simplex OphiactidaeO p4WAdea Ophioplocus esmarki 0phiuridaeOphWfeidea Ophioplocus spp. Ophiuddae Ophiopteris papillosa Ophiothrix spiculata 0phiothricidaeOphkiueoi Ophiothrix spp. OphiothricidaeOphoweide Ophiuroidea up4 Ophiuroidea Orthasterias koehleri AsterfidaeAsteroidea Pachythyone rubra Parastichopus califomicus StichopodidaeHoleth'c'rid Parastichopus parvimensis StichopodidaeNolethuoi-Patiria miniata AsteinidaeAster-idea a 0 de I,S S IS I,S IS IS S I,S I'S I,S I,S I,S S S I,S I,S I,S S I S I,S S S I'S I I I IS IS S IS I,S IS I,S I,S I,S S I,S I,S I'S I,S I,S IS I,S IS I I,S I,S I,S Diablo Canyon Power Plant License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-1 Sheet 16 of 19 SCIENTIFIC NAME FAMILY / TAXON DISTRIBUTION Pisaster brevispinus Pisaster giganteus Pisaster ochraceus Pisaster spp.Psolus chitonoides Pycnopodia helianthoides Strongylocentrotus franciscanus Strongylocentrotus purpuratus Strongylocentrotus spp.Stylasterias forreri Ascidiacea (sea squirts)Amaroucium californicum Archidistoma psammion Archidistoma spp.Ascidia ceratodes Ascidia spp.Boltenia villosa Chelyosoma productum Chelyosoma spp.Clavelina huntsmani Cnemidocarpa finmarkiensis Didemnum camulentum Didemnum/Trididemnum spp.Distaplia spp.Euherdmania claviformis Metandrocarpa taylori Perophora annectens Pycnoclavella stanleyi Pyura haustor Ritterella pulchra Ritterella spp.Styela montereyensis Styela spp.Synoicum spp.tunicate, colonial/social tunicate, colonial upi4da-(white) tunicate, colonial u--n (yellow)tunicate, colonial umidr- -(orange)tunicate, solitary unid.tunicate, compound/social FISHES Chondrichthys (sharks, rays)Apristurus kampae Cephaloscyllium ventriosum Myliobatis califomica Platyrhinoidis triseriata Raja binoculata Raja inornata Raja spp.Rhinobatos productus Torpedo califomica Diablo Canyon Power Plant License Renewal Application AsteriidaeAsteredea Aste ridaeASter-eidea AsteriidaeAsteieidea Asteriidae Psolidael-oothUFOid AsteriidaeAsterOidea Strongylocentrotidae AsterfidaeAstemidea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Ascidiacea Tunicata TunicataAsGkliae TunicataA6GkdiaGea TunicataAsokliae TunicataAsGkliae Tunicata S I,S I,S I,S S I,S I,S I,S I,S S S I,S I,S S S/,S S S I,S IS I S S s I,S S S I,S S S I,S S S I I,S S I,S I,S I,S Scyliorhinidae Chondrichthys Chondrichthys Chondrichthys Chondrichthys Chondrichthys Chondrichthys Chondrichthys S S S S S S S S APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 Table 2.2-1 Sheet 17 of 19 SCIENTIFIC NAME Triakis semifasciata UrobamFtis IpWh. halleri Osteichthys (bony fishes)Agonidae uMi4 Anarrhichthys ocellatus Anoplarchus purpurescens Anoplarchus spp.Apodichthys flavidus Apodichthys fucorum Artedius corallinus Artedius lateralis Artedius spp.Atherinops affinis Atherinopsidae uPkl.Atherinopsis californiensis Athoeinopsaffini Atractoscion nobilis Aulorhynchus flavidus Blenniidae Bothragonus swanii Brachyistius frenatus Cebidichthys violaceus Chilara taylori Chirolophis nugator Chromis punctipinnis Citharichthys spp.Citharichthys stigmaeus Clinocottus recalvus Clinocottus spp.Clinidae uwi, Cottidae w~#4 Cymatogaster aggregata Embiotoca jacksoni Embiotoca lateralis Embiotocidae uwi4 Engraulis mordax Gibbonsia metzi Gibbonsia spp.Girella nigricans Gobiesocidae uH:14 Gobiesox maeandricus Halichoeres semicinctus Hermosilla azurea Heterostichus rostratus Hexagrammos decagrammus Hyperprosopon anale Hyperprosopon argenteum Hypsurus caryi Hypsypops rubicundus Jordania zonope Leptocottus spp.Diablo Canyon Power Plant License Renewal Application FAMILY / TAXON DISTRIBUTION DISTRIBUTION Chondrichthys Chondrichthys Agonidae Anarhichadidae Stichaeidae Stichaeidae Pholidae Pholidae Cottidae Cottidae Cottidae Atherinopsidae Atherinopsidae Atherinopsidae Atherinpsidae Sciaenidae Gasterosteidae Blenniidae Agonidae Embiotocidae Stichaeidae Ophidiidae Stichaeidae Pomacentridae Paralichthyidae Paralichthyidae Cottidae Cottidae Clinidae Cottidae Embiotocidae Embiotocidae Embiotocidae Embiotocidae Engraulidae Gllidae Clinidae Clinidae Kyphosidae Gobiesocidae Gobiesocidae Labridae Kyphosidae Clinidae Hexagrammidae Embiotocidae Embiotocidae Embiotocidae Pomacentridae Cottidae Cottidae S S S S I,S I,S I,S I I,S I'S S I'S S S S S S IS IS S I, S IS S S S S I Is/,s I,S S S S S S S Is IS IS 1-,-S I'S S S I'S S S S S S S I I APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-1 Sheet 18 of 19 SCIENTIFIC NAME FAMILY / TAXON DISTRI BUTION DISTRIBUTION I .... II------£ I .... I _.--:J fl.-AA.. unia.Lethops connectens Liparis mucosus Liparis spp.Medialuna califomiensis Micrometrus aurora Micrometrus minimus Morone saxatilis Nautichthys oculofasciatus Neoclinus stephensae Neoclinus uninotatus Oligocottus maculosus Oligocottus snyderi Oligocottus spp.Oncorhynchus tshawytscha Ophiodon elongatus Orthonopias triacis Oxyjulis californica Oxylebius pictus Paralabrax clathratus Paralichthyi dae unid, Paralichthys califomicus Parophrys vetulus Phanerodon atripes Phanerodon furcatus Phanerodon spp.PholidaePholiddae un PholidaePhel4iddaeIStichaeidae ugi4.Platichthys stellatus Pleuronectidae uP4 Pleuronichthys coenosus Porichthys notatus Rathbunella hypoplecta Rhacochilus toxotes Rhacochilus vacca Rhinogobiops nicholsinihelsii Rimicola muscarum Rimicola spp.Sardinops sagax Sciaenidae uid.Scomberjaponicus Scorpaena guttata Scorpaenichthys marmoratus Scytalina cerdale Sebastes atrovirens Sebastes auriculatus Sebastes camatus Sebastes caurinus Sebastes chrysomelas Sebastes melanops Sebastes miniatus Sebastes mystinus 06tei~hhys Gobiidae Liparidae Liparidae Kyphosidae Embiotocidae Embiotocidae Percichthyidae Cottidae Chaenopsidae Chaenopsidae Cottidae Cottidae Cottidae Salmonidae Hexagrammidae Cottidae Labridae Hexagrammidae Serranidae Paralichthyidae Paralichthyidae Pleuronectidae Embiotocidae Embiotocidae Embiotocidae Pholidae Osteichthys Pleuronectidae Pleuronectidae Pleuronectidae Batrachoididae Bathymasteridae Embiotocidae Embiotocidae Gobiidae Gobiesocidae Gobiesocidae Clupeidae Sciaenidae Scombridae Scorpaenidae Cottidae Scytalinidae Scorpaenidae Scorpaenidae Scorpaenidae Scorpaenidae Scorpaenidae Scorpaenidae Scorpaenidae Scorpaenidae"I-S I S S S S S S S S I, S IS S S S S S S S I'S S S S IS I'S S S S S S S S S S S S S S S S S S S S S Diablo Canyon Power Plant License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-1 Sheet 19 of 19 SCIENTIFIC NAME Sebastes nebulosus Sebastes pinnigoi Sebastes rastrelliger Sebastes serranoides Sebastas serranoides/S. Sebastes spp.Semicossyphus pulcher Seriphus politus Stichaeidae up.W.Synchirus gilli Syngnathus spp.Trachurus symmetricus Typhlogobius califomiensis Ulvicola sanctaerosae Xiphister atropurpureus Xiphister mucosus Xiphister spp.FAMILY / TAXON Scorpaenidae SGorpaenidae Scorpaenidae Scorpaenidae SGripaendae Scorpaenidae Labridae Sciaenidae Stichaeidae Cottidae Syngnathidae Carangidae Gobiidae Pholidae Stichaeidae Stichaeidae Stichaeidae DISTRIBUTION S S S S S I,S S S S S S S I I I I I'S Diablo Canyon Power Plant License Renewal Application APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-3 Sheet 1 of 6 AQUATIC SPECIAL STATUS 1 SPECIES WITH POTENTIAL TO OCCUR OFF THE DIABLO CANYON LANDS 2 Species Common Species Status 3 Record of Range/Habitat Assessment Occurrence Potential Name Federal State Occurrence Balaenoptera Blue whale FE None No Blue whales are found worldwide, from Medium; documented from whale musculus sub-polar to sub-tropical latitudes.

watching tours out of Morro Bay Although blue whales are found in coastal waters, they are thought to occur generally more offshore than other whales.Physeter Sperm whale FE None No Sperm whales are found throughout the Medium; typically found in waters macrocephalus world's oceans in deep waters between deeper than those found in the vicinity about 60° N and 60° S latitudes.

of DCPP Balaenoptera Fin whale FE None No Fin whales are found in deep, offshore Medium; documented from whale physalus waters of all major oceans, primarily in watching tours out of Morro Bay temperate to polar latitudes, and less commonly in the tropics.Megaptera Humpback FE None Yes; Humpback whales live in all major High; documented in vicinity of DCPP novaeangliae whale Observed in oceans from the equator to sub-polar the vicinity of latitudes.

During migration, humpbacks DCPP stay near the surface of the ocean.While feeding and calving, humpbacks prefer shallow waters. During calving, humpbacks are usually found in the warmest waters available at that latitude.Calving grounds are commonly near offshore reef systems, islands, or continental shores.Humpback feeding grounds are in cold, productive coastal waters.Balaenoptera Sei whale FE None No Sei whales prefer subtropical to subpolar Low; outside of normal range of borealis waters on the continental shelf edge and distribution slope worldwide.

They are usually observed in deeper waters of oceanic areas far from the coastline.

APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 Table 2.2-3 Sheet 2 of 6 Species Common Species Status 3 Record of Range/Habitat Assessment Occurrence Potential Name Federal State Occurrence Orcinus orca Killer whale FE None Yes; Killer whales are found in all parts of the High; documented in vicinity of DCPP Observed in oceans. They are most abundant in the vicinity of colder waters, including Antarctica, the DCPP North Atlantic and Pacific Oceans, though they also occur, at lower densities, in tropical, subtropical, and offshore waters.Eubalaena North Pacific FE SFP No Right whales have occurred historically Medium; none have been documented, japonica right whale in all the world's oceans from temperate although DCPP is within the normal to subpolar latitudes.

They primarily range of distribution occur in coastal or shelf waters, although movements over deep waters are known.During winter, right whales occur in lower latitudes and coastal waters where calving takes place and migrate to higher latitudes during spring and summer.Eschfichtius Gray whale FDL None Yes; Gray whales are found mainly in shallow High; documented in vicinity of DCPP robustus (Eastern North Observed in coastal waters in the North Pacific Pacific the vicinity of Ocean.population)

DCPP Eumetopias Steller FDL None Yes; Haulout Steller sea lions prefer the colder High; documented in vicinity of DCPP jubatus (northern) sea sites temperate to sub-arctic waters of the lion identified off North Pacific Ocean. Haul outs and Diablo rookeries usually consist of beaches Canyon (gravel, rocky or sand), ledges, rocky Lands reefs.Arctocephalus Guadalupe fur- FT ST, SFP No Guadalupe fur seals reside in the tropical Low; DCPP is not within the normal townsendi seal waters of the Southern Califomia!

Mexico range distribution region. During breeding season, they are found in coastal rocky habitats and caves almost entirely on Guadalupe Island, Mexico. Little is known about their whereabouts during the non-breeding season.

APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-3 Sheet 3 of 6 Species Common Species Status' Record of Range/Habitat Assessment Occurrence Potential Name Federal State Occurrence Enhydra lutns Southern sea FT SFP Yes; The current range extends along the High; documented in vicinity of DCPP otter Observed in California coast from Half Moon Bay in the vicinity of the north to Santa Barbara in the south.DCPP Southern sea otters inhabit shallow nearshore coastal ecosystems within 1-2 km from shore. They are usually seen in rocky madne habitats where there is a high abundance of kelp canopy and typically in water depths about 20 m.Mirounga Northern none SFP Yes; Northern elephant seals are found in the High; documented in vicinity of DCPP angustirostris elephant seal Observed in eastern and central North Pacific Ocean.the vicinity of Though they range as far north as DCPP Alaska and as far south as Mexico, they typically breed in the Channel Islands of California or Baja California in Mexico.They are usually underwater, diving to depths of about 1,000-2,500 feet (330-800 m) for 20-30 minute intervals with only short breaks at the surface. They are rarely seen out at sea for this reason.Oncorhynchus SCCC FT SSC Yes; The south-central California coast High; documented in Coon Creek mykiss Steelhead DPS observed in (SCCC) DPS includes all naturally Coon Creek spawned 0. mykiss (steelhead) populations below natural and manmade impassable barriers from the Pajaro River in Santa Cruz county south to but not including the Santa Maria River.

APPENDIX E ENVIRONMENTAL REPORT AMENDMENT 1 Table 2.2-3 Sheet 4 of 6 Species Common Species Status3 Record of Range/Habitet Assessment Occurrence Potential Name Federal State Occurrence Eucyclogobius Tidewater goby FE SSC No The tidewater goby is a benthic fish Low; none documented during fishery newbenyi species that inhabits coastal lagoons and surveys of streams in the vicinity of streams between Del Norte County in DCPP. Streams along Pecho Coast do northern California to San Diego County not provide habitat for tidewater goby.in southern California.

They are typically found in brackish and cool water The tidewater goby prefers salinities of less than 10 ppt (less than a third of the salinity found in the ocean,) and is thus more often found in the upper parts of the lagoons, near their inflow Acipenser Green sturgeon FT SSC No Green sturgeon range from the Bering Low; no record of sightings, and outside medirostris Sea to Ensenada, Mexico, with of the range of peak abundance abundance increasing north of Point Conception, California.

The species occupies freshwater rivers from the Sacramento River up through British Columbia, and inhabits coastal marine waters along the central California coast and between Vancouver Island, British Columbia, and southeast Alaska over the winter.Oncorhynchus Coho salmon FE SE No The coho salmon spends most of its life Low; no record of sightings, and outside kistuch in the ocean, but returns to freshwater of range of normal distribution streams to spawn. The range of the Central California Coast coho salmon ESU includes accessible reaches of all naturally spawned populations of coho from Punta Gorda in northern California south to, and including, the San Lorenzo River at the north end of Monterey Bay.

APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-3 Sheet 5 of 6 Species Common Species Status 3 Record of Range/Habitat Assessment Occurrence Potential Name Federal State Occurrence Chelonia Green sea turtle FT None Yes; The green turtle is globally distributed High; documented in the DCPP intake mydas observed in and generally found in tropical and cove the DCPP subtropical waters along continental intake cove coasts and islands between 30* North and 30° South. In the eastern North Pacific, green turtles have been sighted from Baja Califomia to southern Alaska, but most commonly occur from San Diego south.Dermochelys Leatherback FE None No Leatherbacks have been reported Medium; have documented sightings codacea sea turtle circumglobally and can forage in the cold from San Luis Obispo and Monterey temperate regions of the oceans, Bay occurring at latitudes as high as 71 (httpY/vww.califomiaherps.cornturtlesi North and 47° South; however, nesting is pages/d.conacea.html) confined to tropical and subtropical latitudes.

Leatherbacks are commonly known as pelagic (open ocean) animals, but they also forage in coastal waters.Lepidochelys Pacific olive FE None No Olive rdleys are globally distributed in Low; Rare along the CA Coast;olivacea ridley sea turtle the tropical regions of the South Atlantic, however in 2001, 2002 and 2009 three Pacific, and Indian Oceans. In the live olive ridleys were documented Eastern Pacific, they occur from offshore of Matin Co. CA Southern California to Northem Chile. (http I/vwww califomiaherps.comfturtles/p The olive ridley is mainly a "pelagic" sea ages/I.olivacea.html) turtle, but has been known to inhabit coastal areas, including bays and estuaries.

APPENDIX E ENVIRONMENTAL REPORT AMENDMENT I Table 2.2-3 Sheet 6 of 6 Species CoName Federas Statuse Occurrencerd of Range/Habitat Assessment Occurrence Potential Caretta caretta Loggerhead sea FE None No Loggerheads are circumglobal, occurring Low; no sightings reported from San turtle throughout the temperate and tropical Luis Obispo Co, but sightings have regions of the Atlantic, Pacific, and been documented from San Diego Co Indian Oceans. In the eastern Pacific, to Humboldt Co. Closest sighting to loggerheads have been reported as far DCPP was from Santa Barbara Co.north as Alaska, and as far south as (http://wvww.califomiaherps.conm4urtles/p Chile, however, the only known nesting ages/c.caretta.html) areas for loggerheads in the entire North Pacific are found in southern Japan.Haliotis Black abalone FE None Yes; Black abalone range from about Point High; documented in the DCPP intake cracherodii observed in Arena, CA to Bahia Tortugas and Isla and discharge coves the DCPP Guadalupe, Mexico. During low tides, intake cove they are typically be found wedged into and crevices, cracks, and holes of intertidal discharge and shallow subtidal rocks, where they cove are fairly concealed.

Black abalone can withstand extreme variation in temperature, salinity, moisture, and wave action.-In this context, "Special Status" refers to species listed under the federal and/or state Endangered Species Acts (ESA), species proposed for listing under the federal ESA, species that are candidates for listing under the state ESA, state (CDFW) Fully Protected species, and state (CDFW) Species of Special Concern.2- The North Ranch and South Ranch are the more than 11,000 acres of owner-controlled lands lying north and south of the plant site, and outside of Parcel P.3- Designations used to identif special status of species presented in the table are as follows: SE -State listed as Endangered, ST -State listed as Threatened, SCE -State candidate for listing as Endangered, SFP -State Fully Protected species (CDFW), SSC -State (CDFW) Species of Special Concern, FE -Federally listed as Endangered, FT -Federally listed as Threatened, FPE -Federally proposed for listing as Endangered, FPT -Federally proposed for listing as Threatened, FPD -Federally proposed for delisting, DL -Delisted