ML20245D094
| ML20245D094 | |
| Person / Time | |
|---|---|
| Site: | West Valley Demonstration Project |
| Issue date: | 12/31/1987 |
| From: | Harding W, Kappel W INTERIOR, DEPT. OF, GEOLOGICAL SURVEY |
| To: | NRC |
| Shared Package | |
| ML20245D040 | List: |
| References | |
| 85-4309, NUDOCS 8711040369 | |
| Download: ML20245D094 (43) | |
Text
{{#Wiki_filter:- - -- 4 4 f L Surf ace-Water Hydrology of the Western L New York Nuclear Service Center, Cattaraugus County, New York ( L
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__ can-maus cou,m L U.S. GEOLOGIC AL SURVEY D Water-Resources investigations Report 85-4309
.d d 9' ty Prepared in cooperation with the /;.ves U.S. NUCLEAR REGULATORY COMMISSION i
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SURFACE-WATER HYDROLOGY OF THE WESTERN NEW YORK NUCLEAR SERVICE CENTER CATTARAUGUS COUNTY, NEW YORK by William M. Kappel and William E. Harding U. S. GEOLOGICAL SURVEY Wa ter-Re sources Inves tigations Repo rt 85-4309 h Y 4($}\ I4eg3# Prepared in cooperation with U. S. NUCLEAR REGULATORY COMMISSION It haca, New York 1987 , i
UNITED STATES DEPARTMENT OF THE INTERIOR DONALD PAUL H0 DEL, Secretary GEOLOGICAL SURVEY Dallas L. Peck, Director l l l t i Fo r addi tional info rmation Copics of this report can write to: be purchased f rom: Subdistrict Chief U. S. Geological Survey U. S. Geological Survey Books and Open-File Reports 521 W. Seneca St reet Federal Center, Bldg. 41 It haca, New York 14850 Box 25425 Telephone: (607) 272-8722 Denver, Colorado 80225 Te lephone : (303) 236-7476 11
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' CONTENTS Pag e .
AbstractD...' .J.~...". . .~ . . . ................... I ' g In troduction .- . . . . . . . . . . . . . . . . . . .-. .:. . . . . . . 1
- Purpose and scope. .: . . . - . . . . . . . . . . . . . . . . . . . . = 3
' Acknowledgments. . . . ... .. ................... .
3' 3 T De scriptioniof study area. . .. . . . - . . . . . . . . . . . . . . . . . . . .
' Si te : c omponent s. .....o..'
...-............... 3 Dr ain age ' . . . . . . . . . . .. .................. 3-Drainage at burial grounds. . . . . ... . . . . .L. .. .. . . 6' Drainage near reprocessing plant. . .- . . . . . . . .. . . . . 6 Me teorologic conditions. - .' . . .. .................... '
8 8 Precipitation. ...........................
. Air temperature. .. . . . . ................... 8'
'Evapotranspiration . . . . . . . . ................... 9 Surface water hyd rology. . . . . .................... 9 Streamflow-data collection :. . . .'. . . . ... . . . . . . . . ... 9'
; Lagoon Road Creek and Waste Burial 1 sites. . . . . .=. . . . 10 -
North Plateau stream sites. . . . . . . . . . .- . . . . . . .. 12 North Plateau seeps . . ...................
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' St ream-discharge characteristics . ~. .- . . . . . . . . . . . . . . 12 Storm-runof f. response . . .................. 14 Lagoon Road Creek. ...........~........ 14 No rth Plateau streams. . . . . . . . . . . . . . . . . . 15 Ba se fl ow . . . . . . . ................... 15 La goon Ro ad Cr eek. . . . . . . . . . . . . . . . . . . . 15.
No rth Plateau streams. . . . . . . . . . . . . . . . . . 15 Se epage flows . . . . ... ................... 16 Annual flow . . . . . . . . . . . . . . . . . . . . . ... . . 17 Lagoon Road Creek. ................... 17 No rth Plateau. . . ................... 17 NP3 watershed. ................... 17 N Pl 'wa tershed. ................... 18 Summary. . . ... . ....-.................. . . . . 18 Re ferences cited . .......................... 19 Appendix I. Composite mean daily rainfall, December 1980 through September 1983 . . . . . . . ................... 21
. Appendix II. Surface-water discharge, October 1980 through September 1983 A. Lagoon Road Creek near West Valley, station 0421344100 . . . . 23 B. North pla teau site 3 near West Valley, station 0421344420. . . 26 C. North plateau site 1 near West Valley, station 0421344600. . . 29 D. North plateau site 2 near West Valley, station 0421344430. . . 32 Appendix III. Description and discharge of seepage faces along perimeter of north plateau . ................... 33 Appendix IV. Water-level altitudes in wells on north plateau, March 1982 through March 1983. . . ................... 36
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1 - 1 ILLUSTRATIONS'
. Page Figures 1-4. - Maps showing: . I
- 1. Location of st'udy area within Cattaraugus Creek drainage basin . .'. . . . . . . . . ...-.'. . . . . . . 2
- 2. : Major physiographic. features of the Western New York -l Nuclear Service Conter . . . - . . . - . . . . . . . . . . . - . 4: .l
.1 3.- Major physical features within study area. . . . . . . .: - . 5 .) !
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'4. Location of seepage f aces and wells within study area. . - .7 5.- Diagram of stream-gaging enclosure used at Waste Burial 1. ,
and North Plateau 3 and 1 sites. . . . . . . . . . . . . . . . '10 1
- 6. Hydrography of storm of June 27-28, 1983, a t the Lagoon Road,-
North Plateau 3, and North Plateau 1 gaging stations . . . . 14 TABLES Table 1. Annual mean, maximum, and minimum daily discharges at three continuous-record stations at the Western New York Nuclear 11 Se r vi c e Ce n te r . . . . . . . . . . . . . . . . . . . . . . . . . .
- 2. Annual mean daily, maximum, and minimum discharges expressed as unit yield for the three continuous-record stations . . . . . 13 3.- Ratio of normalized base flow at North Plateau 3 site (NP3) to that at North Plateau 1 (NP1) site during 5-day base-flow periods in each season between October 1980 and September 1983 . 16
- 4. Result s of see'page measurements along perimeter of north plateau, Ma rch 3, . July 5, and October 6, 1983. . . . . . . . . . 17 iv
' CONVERSION FACTORS AND ABBREVIATIONS Conversion f actors for the ' terms used in this report 'are listed for readers who prefer to use inch pound units rather than SI-(International System) units.
Multiply SI Unit By .To Obtain' Inch-Pound Units Length
- millime ter (mm) 0.03937' inch (in. )
me ter ( m) . . . 3.281- foot (f t) kilometer (kra) 0.6214 mile (mi)f
- V.elo ci ty meter per' second (m/s) 3.281 fo ot per second (f t/s)
Area
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square meter (m2 )- 10.76 square foot' (f t2) l 1.196 squa re ya rd (yd2 ) 0.0002471 acre hectare (ha)' 2.4 71 acre square kilometer (km 2) 0.3861 square mile (m1 2) Volume cubic meter (m3 ) 35.31 cubic foot (ft3) 1.308 cubic yard (yd 3) 0.0008107 ac re-fo ot (acre-ft) 2 64. 2 gallon (gal)
. liter (L) 1.0577 quart (qt)
Discharge cubic meter per second (m3 /s) 35.31 cubic f oot per second (f t /s) 3 Temperature deg ree Ce lsius ('C) 'F = (9/5) *C +3 2' degree Fahrenheit ( *F) National Geodetic Vertical Datum of 1929 (NGVD of 1929): A geodetic datum derived f rom a general adjustment of the first-order level nets of both the United States and Canada, formerly called "Mean Sea Level." v
Surface-Water Hydr' ology. of the Western New . York . Nuclear Service Center, Cattaraugus County, New York By William M. Kappel and. William E. Narding ABSTRACT s
' Precipitation data were collected f rom October 1980 through
- September 1983 f rom three recording gages at the Western New York Nuclear Service Center, and' surf ace-water data were collected at three continuous-record gaging s tations and one partial-record gage on streams that drain a 0.7 square-kilome ter part of the site. Seepage from springs was measured periodically during the study. The data were used to identify runof f characteristics at the waste-burial ground and the reprocessing plant area, . 4 00 me ters to the north. Preliminary water budgets -f or April '1982 through March 1983 were calculated to aid in the development of ground wa ter-flow models to the two areas.
Nearly 80 percent of the measured runcf f f rom- the burial ground area was storm runof f; the' remaining 20 percent was base ' flow. In contrast, only 30 ' percent of the runof f leaving the reprocessing-plant area was s torm runof f, and 70 percent was base flow. This dif ference is attrib-uted; to soil compos i tion. . The burial ground soil consists of clayey silty till that limits infilt ration and causes most precipitation to flow to local channels. as direct runof f. In contrast, the reprocessing plant area is overlain by alluvial sand and gravel that allows rapid infilt ra-tion of precipitation and subsequent steady discharge f rom che water table to nearby stream channels and seepage faces. Measured total annual runof f and estimated evapotranspiration f rom the reprocessing plant area exceeded the precipitation by 35 percent, which suggests that the ground-water basin is larger than the surf ace-water basin. The additional outflow probably includes underflow from bedrock upgradient from the plant, water leakage f rom plant facilities, and ground-water flow f rom adjacent basins. INTRODUCTION In 1961, the New York State Of fice of At omic Energy Development, now the New York St ate Ene rgy Re search Development Authority , acquired a 1,350-ha tract of land near the village of West Val'ey in northern Cattaraugus County, a bout 48 km s outh of Buf f alo ( fig. 1). A part of this tract was used to construct a f acility to handle and reprocess radioactive waste; this facility is known as the Western New York Nuclear Service Center. Since 1975, the U.S. Geological Survey and the New York State Geological Survey have done studies to evaluate the extent of , and pot ential f or, radio-isotope movement f rom the low-level radioactive waste-burial ground within t his site. In 1980, the New York State Geolonical Survey and the U.S. Geological Survey began a series of studies to evaluate the neology, surf ace and subsurf ace hydrology, and t he pot ential for radi oisotope migration from 1-1
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other f acilities at the site and its extent. These -studies were f unded by the U.'S. Nuclear Regulatory Commission, and many elements of those studies were
'j ointly, planned and completed by the New York State Geological Survey and the U.S. Geological Survey. Further information on the site history, references to previous investigations, and geologic and hydrologic data from the site are given in a companion report by Bergeron, Kappel, and Yager (1987).
I Purpose and Scope This report describes the relationships between precipitation and surface-water runof f at the burial ground and reprocessing-plant areas and includes ' analyses of streamflow and precipitation data, seepage measurements f rom springs, and estimates of evapotranspiration. Four appendixes present (1) precipitation records, (2) stream discharge at t1eee gaged sites, (3) seepage discharge at 19 seeps along the edge of the reprocessing plant area, and (4) water levels measured during 1982-83 in wells around the reprocessing-pl an t : a rea. Acknowledgments Thanks are extended to Steven Potter of the New York State Geological Survey, who assisted in data collection by maintaining equipment and collecting streamflow data, and'to the staff of Nuclear Fuels Service, In c. , f ormer site operator,- and the U.S. Department of Energy (the present site operator), who assisted in completion of several project elements. DESCRIPTION OF STUDY AREA Site Components The study area is within the St. Lawrence (Lake Erie) basin and lies along the west side of the Buttermilk Creek valley (fig.1). The reprocessing plant area, which includes a receiving and storage facility for irradiated fuel, an underground' storage-tank complex for high-level liquid was tes , . a low-level radioactive-wastewater-treatment plant , and associated treatment and storage lagoons, lies on an elevated plateau known as the north plateau (figs. 2 and 3). The site also includes two separate places for shallow burial of solid radioactive wastes--a 4-ha State-licensed area for
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commercial low-level radioactive wastes and the f acility's 2.2-ha disposal area for higher level wastes. These burial areas lie approximately 400 m south of the fuel-reprocessing plant area. Drainage Buttermilk Creek flows northwestward along the east side of the site to Ca ttaraugus Creek near Springville, about 3 km north of the site (fig. 2).- Franks Creek, a principal tributary to Buttermilk Creek, drains the West Valley site (fig. 3) and has a drainage area of 6.35 km 2. Tb 1 southeast side of the low-level waste-burial ground drains directly to Fra- Cr eek ; t he remaining burial ground area drains to several small interr at streams , 3 _ ________ _____ _ a
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i s. ' k Cf d hC UW I .' I ) l L Figure 3.--Major physical features within the study area. (Location Le shown in fig. 2. ) i 5 1
j including Erdman Brook, a major tributary to Franks Creek. Quarry Creek and several urnamed tributaries flow along the north and east sides of the reprocessing plant area and drain to Franks Creek (fig. 3). The southeastern side of the north plateau drains to Erdman Brook. . l Drainage at Burial Ground Erdman Brook receives drainage from the north side of the facility's waste-disposal area and the north side of the State-licensed low-level waste-disposal area (fig. 3). A t ributary to Erdman Brook, Lagoon Road Creek, i drains the area between the two waste-disposal areas. A streamflow gaging station (Waste Burial 1) was established in the f all of 1980 at a point on Lagoon Road Creek that receives surface runof f f rom 2.9 ha of the facility's disposal area and 2.5 ha of the State-licensed disposal area. Another gaging station (Lagoon Road) was established in 1976 approximately 100 m upstream f f rom the Waste Burial 1 station and receives runof f from 2.0 ha of the f acility's disposal area and 2.4 ha of the State-licensed disposal area. Gage locations are shown in figure 3. Drainage Near the Reprocessing Plant Two maj or unnamed tributaries drain the north plateau, which contains the reprocessing plant and related f acilities. The western one, with a gaging station designated north plateau 1 (NP1), drains the west side of the plateau and is tributary to Quarry Creek (fig. 3). The gaged drainage area is 10.4 ha. The other unnamed tributary is upstream f rom s tation NP3 (fig. 3); it drains 9.8 ha and is tributary to Franks Creek. This channel receives flow from the center of the plateau, including most of the reprocessing facilites. A third small area also drains directly to Franks Creek; it encompasses 1.8 ha upstream f rom the partial-record gaging station designated NP2 (fig. 3). This channel was the outlet of the wetland, which now drains past station NP3 as a result of topographic modifications during site development. l The only major streamcourse along the eastern 7.5 ha of the plateau drains water f rom the plant's steam-condensation system and overflow f rom the plant's water-supply system. A f rench-drain system that was installed to pre-vent entry of ground water to lagoons 2 and 3 (fig. 3) discharges perennially to Erdman Brook. The perimeter of the north plateau contains several seepage f aces (fig. 4). These seeps discharge at the interf ace between the alluvial-fan material, which is limited primarily to the plateau, and the till that underlies the entire site. The seeps consist of ground water that discharges neither to the main stream channels nor to the f rench-d rain sys tem. A description of the seepage f aces is given in appendix III. l 6 _____________________-__a
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l METEOROLOGIC CONDITIONS The climate of western New York State is classified as moist continental. As such, precipitation and temperature are functions of the origin and direc-tion of air masses that pass over the region. The weather in southwestern New York, which includes the study area, is also influenced by Lakes Erie and On tario and by r egional topography. The lake s have a moderating ef fect on - temperatures and provide moisture to the air passing over them (Harding and Gilbert, 1968). The topographic (orographic) effects alter precipitation and temperature patterns on a local scale. Precipitation Although no long-term precipitation data have been collected at the site, nearly complete daily precipitation data for water years 19 82-83 were obtained at three recording rain gages (fig. 3). The precipitation record for water year 1981 is incomplete because site access was restricted during the winter i' of 1980-81. The precipitation record is given in appendix I as the composite of the three gages. Total recorded precipitation in water year 1982 was 746 mm and in water year 1983 was 914 mm. Although total monthly precipitation is , f airly evenly distributed in the region (Hardt.ng and Gilbert, 1968), monthly ( precipitation is more variable in the nongrowtrg season (Novenber-April). Precipitation data collected during the study were compared with records f rom three nearby National Weather Se rvice stations at Franklinville, Arcade, and Gowa nda (fig. 1) to determine whether they were representative of long-t erm patterns. Comparison of these stations' water year 1981-83 records against the long-term station averages indicated that regional precipitation was neac normal all three years--105 percent of normal in 1981, 94 percent of normal in 1982, and 92 percent of normal in 1983. Air Temperature No long-term air-temperature data from the site are available; however, temperature data were collected intermittently by the previous site operators. To determine extreme daily and average temperatures, National Weather Service data from Franklinville, Arcade, and Gowanda (fig. 1) were examined and found to be comparable to onsite temperature data. Results of temperature-data analysis indicate that the average site temp-erature is approximately 7*C, and extreme temperatures range from about -35'c t o +3 5'C annually. Average monthly temperatures ('C) computed for the site during the 3 year period of study were: January -5. 3 May 13.3 September 14.8 Fe brua ry -5.1 June 16.4 October 9.1 March 0.4 July 19.3 November 3. 9 April 5.2 August 17.6 De cemb er -1.1 8
Evapotranspiration Potential evapotranspiration (PET) was computed through a procedure developed by Thornthwaite and Mather (1957). Monthly PET values were computed for the climatic year April 1982 through March 1983 f rom (1) monthly average air temperatures, (2) potential hours of sunlight, obtained from tables in Thornthwaite and Mather, (1957, p. 228), and (3) amount of total precipitation measured onsite. These potential values were compared to regional PET values computed by Harding and Gilbert (1968, p. 31) f or the Lake Erie-Niagara River basin. Harding and Gilbert's regional total PET values ranged from 587 mm in the southern part of the basin to 676 mm near lake Erie; the local total PET value for April 1982 through March 1983 averaged 623 mm. Harding and Gilbert also estimated evapo transpiration f rom the Erie-Niagara basin by subtracting average annual runof f f rom average annual precip-itation to obtain a regional average evapotranspiration rate of 508 mm, which was 49 percent of the average annual precipitation. To estimate evapotrans-piration for the West Valley site, the annual PET range (623 mr0 was multi-plied by an average annual coef ficient (0.67) suggested by Penman (in Gray, 1970, p. 3.52). This estimation method yielded an annual evapotranspiration rate of approximately 420 mm for April 1982 through March 1983 at the site. This value also compares favorably with the evapotranspiration estimate of 417 mm computed for the Cattaraugus Creek drainage at Gowanda, for the same clima-tic period. For this calculation, total runof f at 1,wanda was subtracted from average total precipitation measured at the Franklinv111e, Arcade, Gowanda (fig. 1), and at the West Valley site during the same period. SURFACE-WATER HYDROLOGY Streamflow-Data Collection Stream-discharge data were collected at three continuous-record stations (Lagoon Road, NP3, NP1) and one partial-record station (NP2). (Locations are shown in fig. 3; discharges are given in appendix II.) U.S. Geological Survey techniques of measurement and computation of streamflow were followed when feasible (Rantz and others, 1982a,b), but periods of extremely low winter temperatures and deep snowpacks, which are canmon in this area, hindered data c ollec tion. To improve completeness and reliability of continuous records of discharge f rom two watersheds draining the north plateau and one watershed draining the burial ground area, enclosures were constructed over a section of each of the three streams (fig. 5) to maintain an ice-free section of stream c hannel. Each enclosure consisted of a steel I-beam box frame spanning the stream channel beyond the height of extreme peak stages. The f rame was covered by a wooden floor, and a wall of 2.5 ca-thick styrofoam was hung f rom the frame down to the low streambanks to enclose a 4 x 2.5 m area of stream channel. A propane heating unit was placed over the channel near the downstream end of each enclosure to maintain temperatures above O'C inside the enclosure. A gage house containing a float-activated water-level recorder and water-sampling equipment was installed on top of each box frame. l 9
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etationo NP3 - y and NP1. (From Bergeron and 3 g,ygogogu / /\, Syry o thera, 1987. ) CURTA N WALL RESTING ON GROUND m - _ . r FLEX 1BLE 9 # PLASTIC STRIPS ! STREAM [ r N ~ / r UPSTREAM
/! DEBRIS WEIR The stream channel at each gaging station was cleared of all alluvial debris until the till was exposed. Initial attempts to use the natural shape of each channel as a control failed. Large amounts of alluvial debris were deposited in the control section during most storms and prevented establish-ment of any stable stage-versus-discharge relationship.
Two weirs were placed at each gaging station to minimize siltation and to provide a basis f or developing a stable stage-versus-discharge relationship. The upstream weir, a steel plate, 45* V-notch type, was used to trap debris. The downstream weir, placed near the downstream end of each enclosure, was a compound V-notch weir, designed and theoretically rated .f or flows as small as 0.01 x 10-3 m3 /s but capable of rating the potential 5 year storm flow. Lagoon Road Creek arvi Waste Burial 1 Sites Two streamflow-me asurement stations , Lagoon Road and Waste Burial 1, we re installed on Lagoon Road Creek between the State-licensed low-level and the f acility's higher level waste-disposal areas (fig. 3) at different times in the study. The upstream and earlier site, Lagoon Road, used a Parshall flume f or discharge measurement. The Waste Burial 1 site, constructed as an 10
enclosure was 100 m downstream (fig. 3). Both stations were operated during the fall of 1980, and the quality of data collected was considered good l. Af ter the fall of 1980, as vegetation under the enclosure at Waste Burial 1 died, the channel side slopes began to slump, and a large amount of debris was carried into the enclosure f rom an eroding side channel that enters Lagoon Road Creek between the stations. The almost continuous inflow of sediment and debris to the gaging pool made accurate measurement of water levels and discharge impossible during and af ter storms. At tempts to stabilize this stream section f ailed, and Waste Burial I station operation was discontinued in the spring of 1981. The upstream Pa rshall-flume ' ition (Lagoon Road) wa s used during the rest of the study to monitor flows on ti..s stream. Streamflow records during the f rost-free period ( April-November) were considered good, but the winter records (Decembe r through Ma rch) we re consid ered poorl . Daily discharge values for the Lagoon Road site are listed in table A of appendix II and summarized in table 1. 1 Degree of accuracy- Excellent" means that about 95 percent of the daily discharges are within 5 percent; "Go od ," wi th in 10 p erce n t ; a nd "Fa ir ," within 15 percent. " Poor" means that daily discharges have less than " Fair" accuracy. Table 1.--Annual mean, marimwt, and nininwt daily discharges at three continuous-record stations at the Western Neu York Nuclear Service Center. [ Discharges are in cubic maters per second x 10-3 Sit e locat ions ag e shown in fig. 3} Wa te r titation year Lagoon Road North Plateau 3 North Plateau 1 A. Annual mean daily discharge 1981* - -- -- 1982 0.921 3.14 1.52 1983 .530 2.19 1.09 B. Maximum recorded daily discharge (dates are in parentheses) 1981 26.0 (10/25) 25.2 (11/8) 25.5 (10/25) 1982 28.3 (3/17, 9/2) 28.3 (3/13) 25.5 (3/14,3/17) 1983 13. 9 ( l l /4 ) 13.9 (11/4) 31.2 (11/4) C. Minimum daily discharge (dates are in parentheses) 1981 0.0 (many days in 0.1I (6/5-6/14, 0.0 (several days in Ju ne-Se p t. ) 8/25-8/27) Mav, June, Aug.) 1982 0.0 (many days in .28 (1/16-1/30) 0.0 (1/21-1/30) Ja n. , Ma y-Se pt . ) 1983 0.0 (many days in .57 (7/11-7/19) 0. 0 (many d ays in Oct., Dec., July-Se pt. ) June-Sept.) ,
- Incomplete record in 1981 water year. Period of record is: 1.agoon Road ,
4 months; No rth Pla teau 3, 6 months; and No rth Pla teau 1, 7 months. 1L
'\ '
)
y t
' North Plateau Stream Sites
- Two continuous-record gaging ' stations (NP3 'and NP1) and' one: partial-r'ecordP site (NP2) were established on the north plateau. 'NP3 and NP1 us'ed the - -i same gaging method that was at temptediat the. Waste' Burial- li site, but with .; '
greater success. The channel slopes,. which ~are primarily sand 'and gravel,. eroded less Jthan those at Waste. Burial' ILand' produced .less sediment in the
- gage pools. These stations 'provided a nearly continuous record during the 3 years of gaging, 'and the' reliability of the data was considered good. : Daily ~ q discharge. values for ~ these' sites .are listed in ' tables B and C of- appendix II and summarized in~ table 1. 'Ihe partial-record site (NP2) .on the third stream channel on the north plateau had a staff gage. and crest-stage gage used in; conjunction:with a. weir plate and.was checked approximately once- a month '
during the. data-collection period. These' data are listed inL table D of appen - dix II. Discharge during nonstorm periods wa's nearly constant (0.04 x 10-3 m3 /s). : The highest observed flow was' 1. 98 x 10~3 m 3/s < on March :19,1982; the
' lowest flow was' nearly zero on July 9,1982.
North Plateau Seepa Analysis lof 2 years:of streamflow and ' precipitation data (water years
'1981-82) f rom the'three north, plateau streams suggested that. not all water
- leaving the plateau was flowing in the three gaged s treams at NP1, 2,: and .3.
;The . persistence of flow atL NP2, albeit small, and the computation of an ini--
- tial~ plateau wa ter budget, stggested that more wa ter was . leaving the plateau area than could be. accounted for by measured streamflow and evapotranspira-
. t io n. A field reconnaissance early in the study had identified numerous' seeps along -the periphery of . the ! plateau, but their hydrologic significance-was not i
Erealized until the initial water budget was computed. LocatinnLand measurement of flow from these seepage areas began in the spring 'of.1983. Discharge of the several seepage areas was determined by
' timed volumetric measurement. A half-section of PVC pipe was pushed into the q till, just below the interf ace between the alluvial fan material and the underlying till, and the outflow .wes collected in a graduated cylinder or larger container for a specified time period. Each seepage . area was measured three times and the results averaged. ' Seepage measurements taken on March 3, July 5, and October 6,1983 are listed in appendix. III. (Locations are shown in fig. 4.)
Stream-Discharge Characteristics To directly compare annual mean, maximum, and minimum discharge values among the three recording streamflow stations (Lagoon Road Creek, NP1, and NP3), t he value s were divided by drainage area to provide discharge per unit area (unit yield). Resulting values are given in table 2. The annual mean unit yields show no similarity, either by gaging station
.or year, which indicates that the three watersheds are dissimilar in their discharge characteristics.
Comparison of annual maximum daily unit yields shows a clear difference l between storm-runof f characteristics at the burial ground and those on the l {- 12 {
norbhplateae- Theae ' unit yields reflect the dif ference in soil-infiltration rates in the two areas. During the 3 years of gage operation, the Lagoon Ro ad station recorded higher unit yields than the two north plateau stations. The highest flows generally occurred during the late fall or early spring runof f, when evapotranspiration is diminished, . soil moisture is high, and most storms I are of relatively long' duration but moderate intensity (5 mm/h). Comparison of the annual minimum unit yields indicates dif ferences between ground-water-discharge characteristics of the two areas. Lagoon Road Creek is an ephemeral stream; that is, it is dry for extended periods during the sumner, which indicates little or no ground-water discharge. On the north plateau, the stream at the NPl station is considered intermittent because streamflow was nearly continuous ttwough the study, which indicates substan-tial g round-wa ter discharge. This stream had several short periods of no flow, however, generally ,during the summer. The stream at the NP3 station is considered perennial; flows were diminished during each summer but never fell Table 2.--Annual mean, marinum, and minimum discharges expressed as unit yield for the three continuous-record statione at l Western New York Nuclear Service Center. [ Values are in cubic meters per second per hectare x 10-3 Site locations are shown in fig. 3.] Wa te r Station year Lagoon Road North Plateau 3 North Plateau 1 Drainage area 4.4 9.84 10.36 (ha) A. Annual mean daily unit yield 1981* -- -- -- 1982 .209 .319 .147 1983 .120 .223 .105 B. Maximum daily unit yield (dates are in parentheses) 1981 5.93 (10/25) 2.56 (11/8) 2.46 (10/25) 1982 6.44 (3/17) 2.88 (3/13) 2.46 (3/14,3/17) 1983 3.15 (11/4) 1.41 (11/4) 3.01 (11/4) C. Minimum daily unit yield (dates are in parentheses) , 1981 0.0 (many days in .011 (6/2,6/5-6/14, 0.0 (several days Oc t. , July-Se pt. ) 8/25-8/27) in May, June, 1982 0.0 (many days in .029 (1/16-1/30) 0.0 (1/21-1/30) Jan. ,May-Se pt. ) 1983 0.0 (many days in .058 (7/11-19) 0. 0 (many days in Oc t. , De c. , July-Sept.) June-Sept.)
- Incomplete record in 1981 water year. Period of record is: Lagoon Road ,
4 months; North Plateau 3, 6 months; and No rth Plateau 1, 7 months. 13
to zero, which indicates sustained ground-water discharge. The difference between low-flow values of the two north plateau streams indicates a dif-ference in the size and hydrologic characteristics of the ground-water systems f eeding the two drainage areas. Stom-Runoff Response On June 27-28, 1983, 37.3 mm of rain fell during a 20-h period (fig. 6). Peak yields at all stations were between 0.36 x 10-3 and 1.28 x 10-3 (m3 /s)/ha, and peak discharges were between 3.7 x 10-3 and 5.6 x 10-3 m 3 /s. Although the peak discharges were similar, the increases in flow at the Lagoon Road and NP1 sites were considerably greater than those at NP3. Lagoon Road Creek.--During the initial part of this storm, no stormflow
. was recorded at the gaging station because surf ace-depression storage and the upper soil layer at the burial ground retained most of the rainfall (4.2 mm).
When rainf all . intensity increased several hours later, flow at the gage increased rapidly to a peak yield of 1.28 x 10-3 (m3 /s)/ha (5.6 x 10-3 m3 /s). The yield in Lagoon Road Creek quickly returned to nearly the prestorm condi- l tions soon af ter rainfall ceased (fig. 6). St reamflow ceased at the gage on l June 30. This type of discharge response resembles that of storm runoff from a large impervious area, such as a parking lot, where most of the runof f appears ; quickly and ends soon af ter precipitation ceases. g ,, _ . 6 8 2 - 8'E - - EE O l w 1.o - -
%g6 /e-V-d ,_NP3 ,, ,, ,/j
/h w N'N
' ~ ~ ~ ~ ~ ~ ' -
E % o.1 -, 2Q v I \ To8 N.
- a -
.o1 -
u,
.~ . m . .J
.) , , , , ,
24o0 0600 1000 2400 0000 1200 1800 JUNE 27 ; JUNE 28 j JUNE 29 - 1983 Figure 6.--Stomflou at Lagoon Road, NP3 and NP1 gaging statione during storm of June 27-28, 1983. (Locations are shown in fig. 3.) 14
North Plateau Streams.--The prestorm' yield at site NP3, 0.08 x 10-3 (m3 /s)/ha, increased to 0.098 x.10-3 (m3 /s)/ha af ter the initial 4.2 mm of . rainfall and remained nearly steady until the most intense rainfall occurred l at 0400 on June 28 (fig. 6). For the next 3 hours, the rate of streamflow. slowly climbed to a peak yield of 0.57 x 10-3 (m3 /s)/ha (5.5 x 10-3 m3 /s) and l remained nearly constant until rainfall diminished. The recession was gradual and f ell to 0.106 x 10-3 (m3 /s)/ha within 7 hours af ter the end of precipita-tion. By July 4, yield had f allen to within 10 percent of prestorm conditions.
. At site NP1, where yield was near zero [0.002 x 10-3 (m3 /s)/ha], the initial 4. 2 mm of rainf all increased streamflow to nearly 3 times its original rate. During the next few hours, light- rainfall maintained streamflow at this slightly higher rate until the most intense rainfall, 6. 8 mm/h, occurred at 0400 on June 28 (fig. 6). 'At this time streamflow increasnd at a fairly rapid rate and reached its peak yield of 0.36 x 10-3 (m 3/s)/ha (3. 7 x 10-3 m3 /s) 2.5 hours af ter the most intense rainfall. Initially the. flow receded at a cate similar to that of Lagoon Road, but af ter 5 hours began to level out at a cate j nearly 4 times the initial yield.- By June 30, flow had receded to within 10 percent of prestorm conditions.
As seen in figure 6, the streamflow response at Lagoon Road Creek dif fers f rom that at NP3. In the Lagoon Road area, surf ace depression and initial soil storage take up the first rain, but runof f thereaf ter is rapid and short lived. At NP3, the response to rainfall is more gradual, which indicates a much higher rate of infiltration in the watershed and a correspondingly slow rate of discharge to the stream channel from increased ground-water storage. The NPl response to rainfall is intermediate between that of the Lagoon Road Creek site and NP3 because the soil that overlies the NPI watershed is thinner and less extensive than at NP3 but is more permeable than the soils at the Lagoon Road site. Base Flow Differences in the initial base-flow rates, the response to rainfall intensity, and the rate of return to a base-flow condition at the three con-tinuously gaged sites (fig. 6) reflect dif ferences in permeability and moisture-retention capabilities of the soils and in the saturated thickness of t he ground-water reservoir. The mnount of discharge f rom the ground-water reservoir to the stream depends on the physical characteristics of the ground-water reservoir, the amount and timing of precipitation, and the evapotrans-piration rate. Lagoon Road Creek.--The soil at the burial ground area along Lagoon Road Creek is a clay silt till that allows only limited infiltration and storage of precipitation. As indicated on figure 6 and in table A of appendix II, streamflow diminishes rapidly at Lagoon Road Creek when rainf all ends. North Plateau Streams.--On the north plateau, where alluvial gravel de pos-its overlie the clay till, base flow is sustained, as indicated in tables B and C of appendix II. Similarily, the base-flow yields at sites NPl and NP3 reflect the physical differences in the ground-water reservoir supplying hase flow to each stream. Examination of the alluvial s stratigraphy of the north plateau by the New York State Geological Survey ( Albanese and others, 1983) 15 1 _ _ _ _ _ _ _ _ - _ - - _ _ _ - _ _ _ - . -
1 indicated that the' depth and eaturated thickness of alluvial materials on the north plateau is greater under the NP3 drainage basin than under the NP1 l basin. This is consistent with the higher and more sustained base flow at NP3 t han at NPl. Average discharges of 27 base-flow periods (a period of 5 days or more during which streamflow remained steady or diminished at a constant rate) during the 3 years of gage operation at the two north plateau gaging sites' ! were analyzed. The ratio of NP3 ~to NP1 flows, _ normalized for dif ferences in l drainage area between the two sites, were computed on a seasonal and annual ! basis (table 3). The highest ratio occurred during the summer of each year, when evapotranspiration was greater than' precipitation and the water table was in the annual minimum range. (Water levels in north plateau wells are given in appendix'IV. ) . At this time, base flow consists solely of discharge f rom the ground-water reservoir. During the rest of the year, when precipitation equals or exceeds'evapotranspiration, the water table is higher and results in increased ground-water discharge to streams. It is also supplemented by sub-surface stormflow or interflow. On an annual basis, the mean base flow at NP3 was 5.6 times the base flow at NPl. These ratios suggest that the NP3 ground-water basin has greater storage capacity than the NP1 ground-water basin, which is further substantiated by the large number of seepage f aces from which seasonal drainage is sustained on that part of the north plateau between NP3 and the french-drain system (fig. 4). ' Table 3.--Ratio of nonnalized base flou at North Plateau 3 site (NP3) to that at North Plateau 1 site (NP1) during 5-day base-flou periods in each season betoeen October 1980 and September 1983. Number of Seasonal ratios of 5-day base-flow NP3 flow to NPI flow Season periods analyzed Min. Max. Average Winter (Jan.-March) 6 1.3:1 4. 6: 1 3. 0: 1 Spring ( April-June) 6 2.7:1 16.0:1 5. 6: 1 Sumner (July-Sep t. ) 6 2. 5: 1 35.0:1 14.2:1 Fall (Oc t. -De c. ) 9 1. 3: 1 11.0:1 4.1:1 Annual total 27 1.3:1 35.0:1 5.6:1 Seepage Flous The relationship between measured streamflow and measured seepage discharge during the 1983 water year was also analyzed. The three sets of seepage measurements, taken March 3, July 5, and October 6, 1983 (appendix III), represent the annual range in ground-water discharge, and this corre-lates with the saturated thickness of the north plateau ground-water reservoir during the study. As indicated in table 4, the ratio of measured streamflow to measured seepage flow renained relatively constant--an average of 73 per-cent at sites NPI and NP3, and 2 7 percent f rom the f rench drain and other seepage f aces. 16
q Table 4.--Results of eeepage measurenente along perbneter of north plateau, March 3, July 5, and October 6,1983.
. [ Locations are shown in figs. 3 and 4. Dicharges !
are in cubic meters per second x 10-3,) March 3 July 5 October 6 ; Meas uring Percent Percent Pe rcent location Discharge of total Discharge of total Discharge of total NP 3 1.76 63 0.595 64 1.56 54 NP 1 .368 13 .028 3 .623 22 French drain .283 10 . 2 27 24 .312 10 Seepage f aces .396 14 .085 9 .425 15 Total 2.807 100 .935 100 2.92 100 Annual Flou ( Preliminary annual water budgets were developed f or Lagoon Road Creek and the north plateau in an attempt to estimate infiltration and runoff values for use in initial development of ground-water models for these two areas (Yager, ; 1987; Bergeron, U.S. Geological Survey, written commun. ,1986). Co mputation ; of more refined annual water budgets was beyond the scope of the study, but enough information was available to indicate general flow conditions in the waste-burial-ground area and on the north plateau. Lagoon Road Creek.--Runof f f rom the Lagoon Road basin was approximately 49 percent, and evaporation was approximately 45 percent of the precipitation that fell on the basin. The remaining 6 percent was assumed to represent either infiltration into the deeper till or part of the measurement and esti- i mation error. The runof f and evapotranspiration values closely match those _ reported by Harding and Gilbert (1968) for the southern part of the Erie- l Niagara basin. Storm runof f acccunted for nearly 80 percent of the total runoff, and base flow accounted for 20 percent. These runof f f actors indicate that the soils in the Lagoon Road Creek area are fairly impervious and that most runof f occurs as storm runof f. North Plateau.--Total measured runof f plus estimated evapotranspiration nearly equals measured precipitation on the entire north plateau. To tal runof f was approxime 55 percent of the precipitation measured on the plateau, and ! eva potranspire ' i was approximately 45 percent. Storm runof f accounted f or nearly 30 perce+ of the total runof f f rom the north plateau, while base flow, including seepage discharge, accounted for nearly 70 percent. This indicates that the surficial deposits on the north plateau are highly permeable and that ground-water discharge is a major component of the flow regime. NP3 Patershed. To tal measured runof f plus estimated evapotranspiration within the NP3 watershed exceeds measured precipitation by 35 percent; evapotranspir-ation was estimated to be 45 percent of measured precipitation; base-flow and seepage were approximately 78 percent, and stormflow was 12 percent. The inordinately high base flow computed for this watershed is due to several fac-tors and is probably significant beyond any measurement or estimation errors. Apparently an area larger than the surface-water basin is contributing to the 17
I ground-water basin; presumably ground water f rom the NPI basin and areas' upgradient of the reprocessing plant drain into the NP3 basin. Additional i ground water probably originates as leakage f rom the unlined infiltration pond (Lagoon 1, fig. 3) and the low-level wastewater-treatment' system. These f ac-tors are explained in detail by Yager (1987). NP1 Vatershed. Total runof f plus estimated evapotranspiration accounted for nearly 85 percent of the total precipitation that fell on the NPl watershed; evapotranspiration constitutes approximately 45 percent, base flow approxi-mately 20 percent, and stormflow approximately 20 percent. The 15 percent that was unaccounted for suggests either that errors were made in the measure-ments and in the estimate of evapotranspiration or that the underlying ground-wa ter basin is somewhat smaller than the surf ace-water basin and that part of the ground water discharges to the NP3 surface-water basin. The numbers presented above can be considered only estimates for the Lagoon Road Creek and north plateau areas. They yield enough info rmation,. however, to ' indicate approximate hydrologic conditions and general runoff pat-terns at the two areas for which ground-water models were developed.
SUMMARY
Results of a 3 year streamflow-monitoring program at the former West Valley Nuclear Service Center indicate that sur face-wa ter-runof f characterts- l tics of t he burial ground area dif fer considerably f rom those of the reprocessing plant area (the north plateau) 400 m to the north. Comparison of discharge records of the two north plateau gaging stations with those of the burial ground area shows that base flow on the north plateau is substantially greater owing to sustained discharge from the sand and gravel deposits that overlie the plateau. Approximately 70 percent of the total runof f from the north plateau is base flow, and the remaining 30 percent is s to rmf low. This contrasts sharply with the discharge measured at the Lagoon Road site, where only 20 percent of the total measured runof f is base flow, and the remaining 80 percent is stormflow. The primary dif ference between these two sites is the composition and distribution of the unconsolidated glacial ma terial. The claycy, silty till at the burial ground area near the Lagoon Road station limits infiltration and causes most precipitation to run of f directly to stream channels. The alluvial sand and gravel on the north plateau, however, is highly permeable and allows mos t precipitation to infiltrate to t he wa ter table and subsequently discharge as g round-water outflow to stream channels and seepage f aces. Of the total streamflow discharged f rom the north plateau, 73 percent flows past the NP3 and NPl gaging stations, ard ?.7 percent discharges to the f rench d rain and seepage f aces along the edge s, - t he pla teau. Preliminary water budgets fo r these two sites indicate that the NP3 ground-wa ter basin is somewhat larger, and the NPI ground-wa ter basin somewhat smaller, than their respective surface-water Jrainage basins. Streamflow in the NP3 watershed niso includes underflow f rom the bedrock upgradient from the plant and leakage f rom several plant f acilities. Results of this analysis were used to develop initial input terms fo r g round-wa ter models of the No rth Plateau (Yager, 1987) and t he burial-ground area (Be rgeron, U. S. Geological Survey, written commun. , 1985). 18
- x,gn a ,
; 4.)
1
, .j{' ' ,
v', ,, f(;j G p REFERENCES CITED [/ j> - i , y Albanese, L JF R. Ande rso n, S. L. , Dunne, L. A. , Land Weir, 'B. ~ A. ,: 1983, , _ Geologiciand hydrologic research at.the Western'New York Nuclear Service . 1 Center, West Valley , New York; annual repo rt, August 1981-July.1982:. M ,/ LU.S. Nuclear' Regulatory Commission Repo rt NUREG/CR-3 207, 39 7 p. j[ ^
- Be rge ron, ' M. P. , Kap pel ' W. M. , and Yage r, . R. M. , 1987, Geohyd rologie condi-x tions. at the nuclear f uels reprocessing. plant and waste-management f acil-
.ities. at the Western New York Nuclear Service Center, Cattaraugus County,
.New York: U.S. . Geological Survey Water-Resources Investiga tions Repo rt
. 8 5-4145, 4 9 p.
Gray, D. M. (ed. ) ,: 1970, Handbook on the principles of hydrology: . 0t tawa , L l' Canada, Secretariat, Canadian National Committee for the International , Hyd rological Decade, p. 3.51-3.53.
- Harding , W. E. , and ' Gilbert,: B. K. , .1968, Surf ace. wa ter in - the Erie-Ni agara
' River basin, New Yo rk:- State of' New York Conservation Department, Wa ter Re sources Commission, Basin Planning Re port ENB-2,118 p.
ga !. Rantz , S. E. ', and .others ,1982a, Measurement and computation: of streamflow,- 1 3 volume 1, measurement' of stage and discharge: U. S. Geological Survey q
.Wa te r-Su pply ' Paper 2175, 2 48 p. t 1982b, Measurement and computation of streamflow, volume 2, computa-tion'of discharge: U.S. Geological Survey Wa ter-Supply Paper 2175, 346 p.,
Th ornthwa ite , C. W. , and Ma the r, 'J. R. ,1957, Instructions and tables for com- 3. puting potential evapotranspiration and the water balance: Philade lphia, - PI Drexel Institute. f or Technology , Laboratory of Climatology,' Publications f'1 in Climatology, v. X, no. 3, 311 p. Yag er, R. M. ,1987, Simulation of ground-wa ter flow near the nuclear fuels reprocessing plant at Western New York Nuclear Se rvice Center, h Ca ttaraugus County , New Yo rk: U.S. Geological Survey Water-Resources Investiga tions Report 8 5-4308, 58 p. , l l 19 <
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" APPENDIXES
~
jf < ' .M -
\ Y '
..)f,,/jif p .. 'l
,q n a W.
,,( '
7 , 'Pa g e . ;
'b 'I ' '. . Compos'ite .mean ' daily rainf all,5 December 1980 t hrough
- g y- Se p t em be r 19 8 3 . . . . . . . . . . . y . . . " . '. . . . ,. /. : . . . . . . . j. , k ' 21-
- '1 ,, .,
if
' Surface-wa ter discharge,' October .1980' through September 1983:
I I. .i
/ t,s .r 4
~
' A.~ , Lagoon Road Cr eek ' near Wentf _ Valley, . station 0421344100 . . ~ . -
23 q
' ' B ., ' orth N plateau site .3 - (NP3) near West Valley, . ;
.p
^
station 0421344420... . . . . . . . .'.. . . . . .:. . . .yg . 26
"'y
,. 'C. North plateau site 'l (NPI) near West Valley, '-: / - ,
f Fy' station.0421344600 . . . . . . . . . . . . . . . . . . . . . 29 ,l D. North: plateau site 2 (NP2) n, ear West Valley,
' l).'jy e 3 r s tation :0421344430.. . . . .:. . . . . . . . . . . .... . . . 32-c is s
- f' beGeription ard d'ischarge' of seepage ' f aces along perimeter 1
III. , of fiorth plateau . . . . ,.. . . ... . . . . - . . . . . . . . . . . . . 33' 7p n i t- , i :' i ; 4; , Water-level altitEid.1.' wells on north plateau, March 3982
~
I V. 5 t hrough Ma rch 1983 . . . . . . . . . . . . . . . . . . ; . c. . . r. . : 3$ , a
,/
., ( l(
$Y
// i i
.j r (4'
r i { (
. \
.. i
} (. , ! s' . f ( i-3
? I t ,{
i
./ '
y 1, J 20
? .l, i
/- e, ,
~
, l5' hb$NYl _ ._ __ - .----._-.------------------_-a
---.u--- -
7 p - , r,. , _ 1-
,j
.g
-{
'Ih - - 1) 3 I,
.) t 4
( b .}l L
~
f' .
, h f/'- -
r Mb ~ 1- Composite mean daily rainf all at the Western New York Nuclear Se rvice g-A,iffqi i Conter near West Valley. December 1980 through September 1983. (' - l - g -
- e. ,1
' M7 R
j/ c
/ (Dasht.d Ade indicates no rain. blank spaces indicate no data. a bracketed 'a' indicates . ,' l T' an 'stimated rainf all asuunt determined f or water-budget calculations. a bracketed 'e' (
I
- - g , (< indic/4tes that timing of srainfall was not available but the total amount was recorduf.
'p' indicates a parti A monthly total of precipitation. All values are in milliar@rs.)
\f r d ;' and
;{ ) t i
j~.<< > ; ,
'/- j WATER YEAR OCTOBER 1980 THROUCH SEPTEMBER 1981' y j i
.i
/. IAT OCT NOV DEC JAN FE8 MAR APR MAY JUN JUI. , t AUC SEP-t i
t 1. 6.6 -- -- -- -- s I # #'iI l 2 11.9 8.1 -- 4.3 -- 12.4 '
-3 4.3 10.9 --
$.1 4.f 4 .2 1.8 7.1 --
Wl) 14.? 1.5 6.4
- 6 -- ' . 5. 6 1.5 1
--- -- l 7 3.0 -- --
8 13.7 . .5 -- 2.8 9.4 l
! 2.3 17.5 --
1.0 -- 10 3.6 -- -- -- i 41.9 -- : l 12
- -- -- -- -l 13 ' < 1.5 -- --- --
/ j' l
14 < 4.0 15.5 -- - 10.9 3
/ 'l l
15? ,,.m
.7 27.4 --
15.7 - q
'r// .f J- l' '
T
'i N! ! 1.5 2.8 --
13 - ,* , }
/ ?,o ;
,4
,a d l ,
,--i
' I 18' f -- --
)
i ( 19 % / -- -- -- --
6< i c 20 ,< j 23.9 -- 1.8' s
21 21.6 24.1' -- 2.0 7 22 \ -- 24.4 --
-- ' 34.8 ,
23 1. i -- -- -- --
.5 24 i S -- -- --
3.8 --
\ -- 4.1 -- -- --
25 , i: 26 +" -- -- 36.6 - -- h 27, 10 , 8.f- -- .8 --- 7.1 l 28 2.8 -- -- 15.0 17.3 .3 29 2.3 - -- 8.6 -- -- g 30 , i -- d'. 6 -- -- 15 - 31 --- q ,5 ,-. -- TOTAL 35.6p 6.1 ,11. 7p 4 2 2. Ip 137.2 135.1 91.9 109.7' .fi 4 WATERJ QR OCTOBER 1981 THROUCt! SEPTEMBER 1982 t
~
/ v DAY OCT NOV DEC JAN ;.g MAR APR MAY #M JUI, AUC. SEP .
160
~~
5 -- --
\[ t 25.7 --
2.5 .8 .5 -- -- --
'r
'J '
2 3 2j .8
'/ 1.8
.8 1.0 1.3 8.1
-- .3 / --
' ~2 5.?
-- i
/ 47. 7a
)' 4 -- --
2.0 .5 -- 1.0 2.5 -- -- 20.1 J 30.5 '
)'
i 5- *- 4.6 3.6 --
.5
- t
*a i 3
6 7.1 18.8 .5 .3 .8 1.5 8.1 -- 3.0 ,t 7 ,,
)
- 7. ,i W.2 .8 --
,5.8
- e --
.3 --
/M 9 -- --
9.7 .8 -- r- -- 12.7'/ - -- I /7 --
- 7. 8 4.3 4.t. -c' -- 12,7 --
-7 9 . g 10
---, - 1.3 1.8 -- -- -- --' 48
' F f
11 -- -- .3 1.0 e 2. 8 - 2.5 -- -- -- 7.9 -- -- 12 -- -- 2.0 -- -- -- -- -- 4.1 .8 -- -- 13 -- --
.3 -- -- 2.8 2.0 --
7.4 -- -- -- 14 -- 2.0 -- -- -- -- -- -- -- 5.8
.. g5 -- ' i.5 -- .8 '-- -- -- --
1.3 - l
' 21 3 i
3 j l
)
- l. s s.___._____ __ _
t
')
i
m.
- f; -
y.r a.... ll.s l lk APPENDIX 1 -- Composite mean daily rainf all at the Western New York Nuclear Service Center near West Valley, December 1980 through September 1983 (c ont inu ed) . WATER YEAR OCTOBER 1981 THROUCH SEPTEMBER 1982 (continued) DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JtTL AUC SEP
~~
'16 3.0 10.4 .3 2.5 -
4.8 -- -- 21.1 -- -- - 17 -- 7.4 4.1 1.0 -- 4.1 4.6 -- 1.8 8.1 -- --
- 3.6 9.7 4.3 18 5.1 2.3 -- -- -- -- -- -- --
19 14.'7 1.5 2.8 -- -- -- -- 7.1 4.1 .3 - --
$ 20 .3 12.7 .5 2.0 1.5 -- 1.8 --
1.0 9.1 -- 1.5 21 -- 12.7 .8 .3 2.0 2.3 -- -- 1.5 - -- -- s 22 1.3 6.6 1.5 3.8 --
.5 --
12.4 .5 -- -- 28.7 23 13.2 .5 -- -- -- -- -- 7.1 -- -- --
~~
1.8 24 3.3 .3 -- -- 1.0 4.1 --
.3 -- -- --
25 -- -- -- -- -- 3.0 -- -- -- -- .3 25 4.8 1.0 -- -- --
.5 2.3 --
1.8 -- 4.1 27 11.9 .5 - -- -- -- -- 10.4 -- 6.1 15.7 28 13 .5 3.8 -- -- -- -- 15.7 11.2 34.5 4.57a .8 29 -- -- 1.5 -- -- -- -- -- 26.2 -- -- 30 -- -- 1.5 -- -- -- -- -- -- -- 31 -- -- 13.5 11.7 .8 - TOTAL 125.5 83.3 43.2 42.2 14.7 40.1 29.5 64.3 126.0 84.6 52.4p 105.7 WATER YEAR OCTOBER 1982 THROUGH SEPTEMBER 1983 DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JtfL AUG SEP
~~ ~~
1
~ - -- -- --
7.1 -- -- 29.2 -- 2 -- -- 2.5 -- 6.6 15.2 --
.5 -- --
3 9.7e 60.,7s -- -- 4.3 .5 -- 7.4 1.5 -- -- -- 4 1.5 4.3 1.3 4.3 .8 3.8 .3 .8 3.6 1.0 -- 5 ,_ 3.0 -- 7.4 -- -- 1.0 .3 .8 4.3 -- 6 -- 1.5 2.3 -- -- -- -- -- 9.1 .5 -- 3.0 7 -- -- -- 4.6 6.1 .8 2.8 -- -- -- -- 5.8 8 5.1 -- -- -- -- 1.8 -- 3.8 -- -- 5.1 -- 9 -- -- 2.0 -- -- 13.5 .3 -- -- --
.5 --
10 -- -- -- 2.5 -- 6.6 2.5 -- -- -- -- -- 11 -- 13.2 .5 5.1 --
~~
7.4 -- -- -- 24.4 -- 12 -- 13.2 .8 1.3 -- -- -- --
.5 4.6 --
13 .5 3.3 .5 .5 -- -- -- --
.3 --
2.5 14 15.5 -- -- 1.3 -- 2.0 5.8 -- -- -- -- 15 10.4 2.8 3.0 2.8 - 7.1 6.6 17.0 -- -- -- 16 -- -- 9.1 3.0 -- --
.5 -- -- --
7.6 17 2.8 -- -- 3.0 -- 4.3 -- 1.0 .5 10.7 5.3 lb . ~~
-- -- -- -- 46.0e 3.3 -- -- -- --
1.5 19 -- 3.6 1.3 .5 .8 8.1 -- -- -- -- 20 1.3 14.5 --
.3 1.0 1. 5 --
5.1 -- -- 21 7.1 5.8 --
.8 -- -- --
11.9 -- 18.5 22 5.3 7.6 .5 .5 -- 9.4 -- -- 3.0 29.2
- 2) 48.3e 5.1 .5 9.4 1.8 5.1 2.3 --
2.3 - 11.7 24' 3.0 -- 3.6 4.6 4.1 -- -- 7.6 -- -- 25 -- 11.4 1.6 .8 ~ !- -- 8.9 -- -- -- -- 26 5.8 -- --
.5 -- -- -- -- -- -- --
.17 -- 6.4 -- --
12.7 -- -- 5.6 -- -- --
- s. 28 _
10.4 .3 -- -- 2.3 -- -- 31.0 -- 20.8 -- 29 1.5 4.8 -- -- -- 8.4 8.4 -- 15.7 .5 --
' ;y/ .'
30 T -- .5 4.8 -- 5.3 1.5 -- 11.4 13.5 -- 1 31 0.0a .3 -- -- 1.5 1.3 17.8
'.%TAL 9 .2 134.4p 81.3 44.2 34.3 84.8 64.8 89.4 66.3 62.0 1 ",5 . 4 85.3 y
)\ 22 I ' s i
APPENDIX 11 -- Surface-water discharge at 1.agoon Road Creek and North Plateau gaging stations, October 1980 through September 1983. A.-- 1 AG00N It0AD CREEK NEAR WEST VAL 12Y (0421344100) 1.0 CAT 10N.-La t 4 2* 2 6' 5 5", long 7 8' 39'0 3* , Cattaraugus County , Hydrologic Unit 04120102, on right bank 61 m upstream f rom Franks Creek and 5.6 km northwest of West Valley. DRAINACE AREA.--0.044 km 2
' PERIOD OF R200ltD.--Seasonal, December 1975 through October 1979, October-November 1980, continuous July 1981 through September 1983.
CACE.--Craphical recorder driven by a float in a 30.5-en diameter well connected by a 3.2-cm diameter pipe to a 3 Pershall fiume. Outside referencel a vertical, enameled staf f gage (base gage) attached to the fiume wall. l 1 CotrtROL.--Calvanised Parshall flume (15.2-em throat x 30.5-cm deep). REMARKS.--Records good except for winter period. which is poor. EXTREMES FOR PERIOD OF RECDRD.--Maximum daily discharge. 0.27 m 3/s June 29,1976; no flow many days. MEAN DISCHARCE. IN CUBIC METERS PER SECDND X 10-3, WATER YRAR OCTOBER 1980 THROUCH SEPTFMBER 1981 DAY OCf NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP l- ) 1 .00 .03 .00 .03 .00 f
.00 .03 .00 .03 .79 2 2-3 .06 .00 .00 .03 .71
.88 .0 3 - .03 .31 4 .06 5 .11 .77 .31 .03 .62 6 .06 .77 .06 .03 .20 4 7 .11 4.2$ .03 .00 .06 1 8 .06 .74 .00 .00 1.33
.03 1.64 .00 .00 .09 9
10 .00 .06 .00 .0 0 . .06 11 .37 .06 .00 9.06 .03 6.80 .06 .00 .11 .03 12
.26 .03 .00 .06 .03 }
13
.06 .06 .00 .06 .94 14
.06 .06 .00 1.98 .09 15
.06'- .03 .00 .31 .03 16
.03 .06 .00 .06 .62 17
.23 .06 .00 .06 .06 18
.06 .20 .00 .03 .03 19 2.24 .26 .54 .03 .11 20 1.98 40 11.61 .00 .06 21
.96 1.95 .00 10.20 22 .09
.06 .45 .03 .03 .00 .17 23
.06 3.40 .03 .00 .00 .09 l 24
.82 .06 .00 .00 .06 25 26.0 5 4.81 .20 .00 6.80 .00 .06 26
.28 .00 .11 .00 .65 1 27
.62 .00 2.52 .82 .06 i 28 '
.00 2.75 .03 .06 29 .17
.09 .00 .09 .03 .03 30
.06
--- .06 .03 ---
31 44.93
--- 26.89 12.85 17.58 TarAL --
.59 NEAN 1.45 ---
--- .87 41 MAX 26.05 --
--- 11.61 9.06 10.20 !
.00 --
-- .00 .00 .00 MIN --- .020 .004 .013 H 3/pt2 .035 --
88.2 - - -
--- 52.8 25.2 34.5 MM 3.30 1.98 0.93 1.34 M8/H 23 l
I I
l f
~
APPENDIX II -- Surf ace-water discharge at lagoon Road Creek and North Plateau gaging stations. October 1980 through September 1983 (continued). A.-- LAC 00N ROAD CREEK NEAR WEST VALLEY (0421344100) MEAN DISCHARCE. IN CUSIC METERS PER SECOND X 10*3. WATER YEAR OCTOBER 1981 THROUGH SEPTEMBER 1982 DAY OCT NOV DEC JAN FEB MAR APR MAY .JUN JUL AUC SEP
.I 7.65 .!! .20 a3.12 a2.15 a.06 ' .4 5 - .03 .31 .03 .00 .03 2 7.36 .11 .06 a.68 a.62 a.06 - .20 - .0 3 ' .08 .00 .00 20.96 '
3 1.44 .08 .03 a.25 a.40 a.03 1.36 .00 .0 6 ' .00 .00 .96 4 .20 .08 .03 7.08 a.31- a.03 .82 .00 .06 .00 3.12 .11 5 .11 .20 .03 a.85 a.25 a.it .40 .00 7.08 .00- .03 .06 6 2.29 '7.08 .03 a.90 .a.20 a.31 .40 .00 1.56 .00 s .03 .31 7 3.12 1.30 .? % a.31 a.17 a.25 2.83. .00 .25 .00 .00 .08 8 '. 31 .31 3.68 a.25 a.14 a.Il .14 .51 .!! .00 .06 .06 9 .11 .11 .74 a.20 a.11 a.06 .06 .08 .08 .00 1.93 .03 10 .06 .08 .31 a.1 1. a.08 a.06 1.70 .06 .08 .00 .06 .03 11 .06 .08 .25 a.06 a.08 a.62 2.27 .06 .03 .00 .03 .03 12 .06 .06 .17 a,0 3 a.06 a3.40 4.25 .03 .03 .00 .00 .00' 13 .06 .06 .20 a0 - m.06 a27. 2.75 .00 -.2 8 .00 .00 ' .00 ; 14 .06 .06 .31 a0 a.06 a28. 42 .00 .03 .00 .00 .00 ' 15 . 06 .06 .25 a0 a.20 a7.1 .20 .00 .03 .00 .00 .00 16 .0 6 , 4.53 .25 a0 al.70 a4.0 .20' . 00 3.40 .00 .00 .00 1 17 '06
. 2.61 .17 so al .13 a28. .20 .00 .42 .00 .00 ' .00 1 i
18 .14 2.01 .11 a0 a.62 al.70 .11 .00 .03 .31 .00 .00 19 3.68 .23 .06 a0 a.45 a.74 .06 .00 .03 .06 .00 .00 20 .54 5.38 .03 ao a.40 a.45 .06 .00 .00 .71 .23 .00 21 .37 .96 .03 a0 a.31 a6.80 .06 .00 .00 .00 .03 .17 22 .08 .68 .03 a0 a.31 a.40 .06 .20 .00 .00 .00 2.63 23 3.12 .62 14.44 a0 a.25 a.2 5 .06 .99 .00 .00 .00 1.27 24 1.61 .82 1.30 a0 a.2 3 a.25 .06 .20 .00 '. 00 .00 .06 . 25 .45 .68 a.31 a0 a.20 a.20 .06 .08 .00 .00 .25 .03 ! 26 1.13 1.53 a.14 . no a.20 a.20 .06 .06 .00 .00 .03 .06 27 4.53 6.80 a.08 ao a.l! a.17 .06 1.39 .00 .00 .00 4.81 28 1.53 .40 a.06 no a.11 a.17 .06 3.96 .85 4.25 .00 .20 29 .20 .08 a.06 a0 --- e.25 .06 .45 8.21 .08 .00 .11 30 .!! .06 a.0 3 a0 --- a.45 .06 .11 .06 .03 .00 .06 31 .11 --- a.0 3 .17 --- 5.10 ---
.08 ---
.03 .54 ---
TOTAL 40.47 37.17 23.56 13.51 10.91 115.96 19.48 8.32 22.87 5.50 6.34 32.06 MEAN 1.31 1.24 .76 .44 .39 3.74 .65 .27 .76 .18 .20 1.07 MAX 7.65 7.08 14.44 7.08 2.15 28.32 4.25 3.96 8.21 4.25 3.12 20.96 MIN .06 .06 .03 .00 .06 .03 .06 .00 .00 .00 .00 .00 M 8/KMP .0 30 .0 28 --
.015 .006 .017 .004 .005 .024 MM 79.5 73.0 46.3 26.5 21.4 2 27. 7 38.3 16.3 44.9 10.8 12.4 63.0 M s/H 2.98 2.82 1.73 1.00 .89 8.50 1.48 .61 1.73 .41 .45 2.43 ' WTR YR 1982 TOTAL M6.15 MEAN .92 MAX 28.3 2 MIN .00 M3 /H 2.09 MM 6 60.1 a - Es timated; no gaga-heigh t record.
24
p , i i 2 k
\ } 1 ,
" APPENDIK II,-- Surf ace-water discharge ' at ' Lagoon Boad Creek and North Plateau gaging'etations,
' October 1980 through September 1983 (continued).
, ' A.-- LAC 00N ROAD CREEK NEAR WEST VALLEY (0421344100)
~
1 MEAN DISQ(ARGE, IN CUBIC METERS PER SECOND 1 10~3. WATER YEAR 0CTOBER 1982 THROUCH SEPTEMBER 1983' DAY. OCT NOV ^ DCC FEB ' MAR APR' ' MAY JUN JUL AUG ' 'SEP lJAN 1'
. 03 '3.68 .17 .09 .17 '.0 9 a.31 2.27 .03 .00 2.41 .06 25 .03 .45 : .09 .06 6.80 .06 'a.25 5.66 .03 .00 .09 .0 3 -
a: 3_ .0 3 = 8.21i .06 .06 1.05 .09 al.70 3.12~ .03 .00 '. 00 .0 3 - 4J .03 . 13.88 '.57 .06 .4 5 ' ' .06 - a.62 .62 .06 .00' .00 '00-
'$= :.0 3 '.62 45L , .0 3 - .26 .06 s.25 .20 ' .03 .00 .00 .00 .
6 .0 0'- .31 .5 4 - .03 .17~ .06 a.20 .1 1 - .11 .00 .00 ' .00
'7 .0 3 ' .26 .20 . '.1 1 ~ .17 .06 a.54 .06 .03 .00 .00 ' .0 3 j
.8- .03 .09 .09 .09 .11 .03 a.17 . .11 .03 : .00 - .00 .00 ' i
'9 .0 3 - .06 .06 . 06 .11 .03 a.11 .09 .00 .00 .0 0 - .00 -
10 - ' .0 0 ".0 6 .06 - 1.70 .11 - 1.47 a.11 - '.0 6 '.00 ' .00 .00 . .00 11E .28 .2.38 .06 2.04. .11 1.42 - al.4 .06 .00 .00 .82 - .00 ' e 12 .03 5.95 .06 .20 .11 .45 a.62 .03 .00 .00 .48' .00 m . 13 .03 . 2.63' .0 6 ' .11 .11 .96 n.17 .03 .00 .00 .0 3 ' .00 !" 14 1.19 .31 .03- .11 .14 .65 .06 .06 .00 .00 .00 .00
" 15, 4.53 .26 .09 .I1 .14 .17 1.6 .34 .4 8 - ' .00 . .00 .00
' 16 J .20 .31 3.40 .09 .14 .09 .11 .17 .03 .00 .00 - .00 3 17 , .20 . .17 .28, .09 . .14 .06 .09 .06 .00 .00 .23' .09 18 . .06 .11 .06 .09 ~ 1.30 .06 .85 .06 .00 .00 ' .0 6 - .03 19 .03 .0 6 ' .03 .09 1.05 5.38 - .6 2 ' .0 3 ' .00 .00 .03 .03
( 20
.06 .0 6 - .03 '.0 6 ' .62 1.44 .54 .03 .00 .00 .00 .09 ' .j 21 .06 1.19 - .00 .06 .31 5.38 1.95 .03 .00 .00 .00 1.08 22< .03 1.93 .00 .06 .20 .74 40 .34 .00 .00 .00 3.12 23 .03 1.90 .06 1.19 .20 .54 .17 .28 .00 .00 .00 3.97 24 .03 '2.83 9.06 1.30 .1 1 - .31 .31 .06 .00 .00 .00 .40 4 25 .03 .26 3.40 .34 .11 'a.25 .96 .14 .00 .00 .00 .11 26 .03 .17 .82 .31 .1 1' a.20 .31 .68 .00 .00 ' .00 .06 9 27 .03 .11 1.33- .17 .1 1 ' e5.4 .11 .06 .00 .00 .00 .06 28 .03 ' ~:4.53 1.10 .11 . 09 a3.4 ' .09 .03 ,1.22 .00 .54 .03 29 .00 2.63 .17 .11 -- - al.2 .23 .09 .03 .00 .31 .03 30 .00 .45 .11- .11 --- a.62 - 2.38 .45 .00 .2 6 - .51 .03' 31' .77 -- .09 .11 ---
.a.48 ' --- .06 ---
.03 2.38 ---
TMAL . 7.89 55.86 ' 22.53 9.35 14.50- 31.18 17.29 15.39 '2.11 .29 '7.89 9.19. MEAN .25 1.86' .73 .30 - .52 1.01 .58 .50 .07 .01 .25 .31 M AX ' 4.53 13.88 9.06 2.04 6.80 S.38 2.38 5.66 1.22 .26 2.41 3.97
'l HIN .00. .06 .00 . .03 .09 .03 .06 .03 .00 .00 .00 .00 M3/KM2 .006 .042 . .017 .007 .012 -- ---
.011 .002 .000 .006 .007 1 MM 15.4 109.7 44.2 18.4. 28.5 61.2 34.0 30.2 4.1 .6 15.5 18.0 Ms/H .57 4.23 1.66 .68 1.16 2 30 1.32 1.14 .16 .02 .57 .70
- CAL YR 1982 TMAL 3 21.2 3 MEAN 0.88 MAX 28.32 MIN .00 H3/H 2.00 MM 630.6 a WTR YR 1983 TOTAL 193.47 HEAN 0.53 MAX 13.88 MIN .00 M3 /H 1.20 MM 379.8 !
CLH YR 82-3 TOTAL 235.88 ' ME AN 0.6 5 MAX 20.96 MIN .00 M 3/H 1,48 MM 463.1
- a - Estimated; no gage-height record. 1 I
1 L 25
APPENDIX 11 -- Surf ace-water discharge at Lagoon Road Creek and North Plateau gaging stations, October 1980 through September 1983. B.-- NORTH PLATEAU S1TC 3 (NP3) NEAR WEST VALLEY (0421344420) LOCATION.l k at 42*2 7'14*, long " 39'03", Cattaraugus County, Hyd rologic Unit 04120102, on le f t bank at north-eastern perimeter of Western a w York Nuclear Service Center.110 m upstremn f rom the south, 460 m northeast of the main plant f acility and 6.1 km northwest of West Valley.
- DRAINACE AREA.--0.098 km 2, PERIOD OF' RECORD.--October through November 1980, June 198'l through September 1983.
CACE.--Craphical recorder d rive n by a float in a 15.3-cm s teel slot ted well. Outside references a vertical, esameled staf f gage attached to the outside of the stilling well. CONTROL.--Steel,' compound V+ notch weir plate driven into clay till at downstrean end of geging platform e nclos ur e. REMARKS.--Records good. EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge, 28.3 x 10-3 m 3/s Ma rch 13, 1982; minimum daily discharge 0.11 x 10-8 m3/s June 5-14, August 25-27, 1981. MEAN DISCHARCE, IN CUBIC METERS PER SECOND K 10~3, WATER YEAR OCTOBER 1980 THRC'JCH SEPTEMBER 1981 DAY OCT NOV DEC JAN FEB MAR ___. APR MAY JUN JUL AUC SEP 1 .57 .57 9.06 .14 .57 2.55 .17 . 2 .57 .28 11.61 .11 .57 2.27 .23 3 .57 .28 8.50 .14 .57 1.98 .23 4 .57 .57 5.38 .14 .57 1.98 .23 5 .57 3.12 4.53- .11 ,28 1.98 .28 j l 6 .57. 1.42 4.53 .11 .28 1.70 .28 7 .57 5.38 . 10.76 .11 .28 1.70 .28 8 .57 25.20 13.31 .11 .28 1.70 .57 9 .85 '9.63 13.03 .11 .28 1.42 .28
'10 .8 5 - 3.96 10.76 .11 .28 1.42 .28 11 185- 2.55 9.63 .11 .28 5.10 .28 12 5.10 2.27 10.20 .11 .28 1.42 .28 13 2.27 2.27 11.89 .11 .28 1.42 .28 14 1.42 2.27 9.63 .11 .28 1.42 .57 - 15 ' t .4 2 1.98 8.50 6.51 .28 1.70 .28 16 1.13 1.70 8.50 1 42 .28 1.70 .28 17 .85 1.42 7.93 1. 2 .28 .85 .57 18 1.13 1.13 7.65 1.13 .28 .57 .28 19 .85 1.13 7.65 .85 .28 .57 .28 20 2.55 .85 7.08 .85 .28 .28 .57 21 3.40 .85 2.55 1.70 .28 .28 22 1.70 1.98 1.42 9.06 .85 .23 8.50 23 1.42 1.42 1.42 3.12 .57 .23 5.95 24 1.13 5.66 1.42 2.27 .57 .17 4.81 25 14.73 5.38 1.13 1.98 .57 .11 4.53 26 6.51 3.96 .85 1.13 5.10 .11 4.53 27 2.83 3.96 .57 .85 2.55 .11 3.96 28 1.70 4.25 .40 .85 3.12 .28 3.96 29 .85 4.53 .23 .57 4.53 .17 3.96 30 .57 4.53 .20 .57 3.12 .17 3.40 31 .57 -- .20 --
2.83 .17 -- l ! TOTAL 59.24 104.40 --- --- 36 .7 6 32.27 35.76 50.38 MEAN 1.91 3.48 --- --- 1.23 1.04 1.15 1.68 MAX 14.73 25.20 -- --- 9.06 5.10 5.10 8.50 MIN .57 .28 -- ---
.11 .28 .11 .17 M3/EM3 .0 19 .035 -- ---
.012 .011 .012 .017 MM 52.1 91.7 --- - - -
32.3 28.3 31.4 44.2 N3/H 1.94 3.54 1.25 1.06 1.17 1.71 26 1 ( I-
' Lt r
d I APPENDIX 11 -- Surf ace-water discharge at Lagoon Road Creek and North Plateau gaging stations. October 1980 through September 1983-(continued). 8.-- NORTH PLATEAU SITE 3 (NP3) NEAR WEST VALLEY (0421344420) ME AN DISQlARCE, .IN CUBIC METERS PER SE(DND X 10~3. WATER YEAR OCTOBER 1981 THROUGH SEPTEMBER 1982 DAY' ' OCT NOV - DEC JAN- ' FEB ' MAR - APR MAY- JUN' 'JUL AUG SEP. t 9.35 '3 12 : 3.12 '2.83 1.42: 3.40 - 8.21 -1.42 1.70 2.83 1.42 1.42 2 11.89 3.12 23.12 '. 2. 2 7 ' l.42 3.40 .7.36 '1.42 - 1.4 2 ' 2.27 1.42 ; 28.0 4
-3 ' 8.21 2.83 3.12 2.27 1 13 3.40 7,36 1.42' l.42 2.27 '1.13 ~ 13.59 ' ;l
~4" 5.10 2.83 3.12 8.50' l.L3 3.40 6.51 1.42 1.42 1.98 ' 5.6 6 - 10.20 '1
-5 3.97' . 2.83 - 3.12 4.53. .8 5 - 2.83 6.51 1 42. 2.55- 1.98 1.70- 5.10 6 4.53^ 4.81 3.12 ' 3.9 7, .57 1.98 5.66 1.42 1.98. 1.70 1.42 5.66 7 5.10 3.97 .3.12 3.40 .57 1.70 5.10 1.42 . 1.42- 1.70 1.13- -5.10
<8- 4.53 3.12- .4.53 3.40 .85 -1.13 4.53 2.83 1.42 1.42 1.42 3.12-9 13.97 2.27 3.12 3.40 .85 1.13 3.97 1.98 1.42' 't.13 3.68 2.27 10 ' 3.40 1.70. 3.12 3.12 .85 ! !.13 4.53 1.70- 1.42 1.13 1.70 1.70 '
'11- 3.12- 1.13 ' 2.83 2.83- .85 1.98 6.51 1.70 1.42. 1.13 1.42 1.70
- 12. 2.27 1.13 2.83- 2.55 .85 9.06 7.36 1.42 ; 1.42 1.13 ' l.42 1.42 -
13 2.27- 1.13 2.27 1.98 .8 5 . 28.32 8.21 1.13 1.42 1.13 -. 1.42 1.13. ,
'14 1.98 1.13 - .2.27 '1.42 .85 17.56 10.76 1.13 1.42 1.13 1.42 .85 1 15 1.98 1.13 1.98 .85 l.13' 14.44 5.38 1.13 1.42 1.13- 1.13' 1.13 i
,16. 1.42 5.38' !.98 .57 1.98 13.31 2.27 1.13 1.98 1.13 1.13s 1.13 17 -
1.13- 2.27 1.98 .28 1.42 26.90 2.27 1.13 1.98 1.13 1.13. 1.13 18 .85 L 4.53 1.98 . .28 - .1.42- 15.29 2.83 1.13 1.98 1.70 1.13 1.13 19 , 3.40 3.40' !.98 .28 1.13 13.31 2.83 1.13 1.98 1.42 1.13 1.13 20 3.97 7.08 - 1.70 .28 ' l.13 13.31 3.12 1.13 1.98 1.13 1.42 .85 ; i 21 3.97 ' 3.9 7 - 1.42 .28 1.13 ,13.31 2.83 -1.13 1.70 1.13 1.42 1.13 J 22 3.97 3.97 - 1.42L .28 L 1.70 : 9.06. 2.27 1 13 1.70 .1.13 1.42- 2.55 5.10 3.97' 13.03 .28 2.83 8.21 1.98 1.13 1.70 1,13 1.42 3.40 23 ' 24- 5.10 3.97 4.53 .28 4.53 8.21 1.70 1.13 1 42 1.13 1.13' 1.98 25 - 4.53 3.97 '3.97 .28 5.10 6.51 1.70 1.13. -1.42 1.13 1.13 1.98 26 4.53 3.97 3.40' .28 5.10 6.51 1.70 .85 1.42 1.13 - - 1.13 ' 1.70 27 5.66 12.46 3.12. '.28 4.25 5.10 1.70 1.42 1.42 1.13- .85 4.53 28 '6.51' 6.51 3.12 .28 3.40 - 5.10 _ 1.42- 3.68 1.70 3.97 .85 2.55 29 3.97 5.10 - 3.12 - .28 --- 5.10 1.42 2.27 10.48 2.83 1.13 2 27 30 3.40. 3.97' 2.27- .28 --- 6.51 1.42 1.98 3.12 2.27 1.13 2.27 31 3.12 - - . 2.27 .57 --- 13.31 - - - 1.70 --- 1.98 1.42 ---
' TOTAL 132.30 110.77 96.08- .52.38 49.29- 263.91 129.42 46.16 59.25 49.53 46.46 !!2.16 MEAN 4.27 3.69 3.10 1.69 1,76 8.51 4.31 1.49 1.98 1.60 1.50 3.74
' MAXIMUM 11.89 12.46 13.03 8.50 5.10 28.3 2 10.7 6- 3.68 10.48 3.97 5.66 28.0 4 MINIMUM .85 1.13 1.42 .28 .57 1.13 1.42 .85 1.42 1.13 .85 .85 M3/KM2 .043: .0 38 .031 .017 : .0 18 .086 .044 .015 .020 .016 .015 .038 MM. 116.2 97.3. 84.4 46.0 43.3 231.7 113.6 40.5 52.0 43.5 40.8 98.5 M3 /H 4.34 3.75 3.15 -1.72 1.79 8.65 4.38 1.51 2.01 1.63 1.52 3.80 WTR YR 1982 TOTAL 1.147.71 ' ME AN 3.14 MAX 28.3 2 HIN .28 M3 /H 3.19 MM 1,007 l
q 1 I i 27
APPENDIX II -- Surf ace-water discharge at 1.agoon Road Creek and North Plateau gaging stations, October 1980 through Septanber 1983 (continued). 8.-- NORTH PLATEAU SITE 3 (NP3) NEAR WEST VALLEY (0421344420) ME AN DISCHARGE, IN CUBIC METERS PER SECOND X 10~3. WATER YEAR OCTOBER 1982 THROUGH SEPTEMBER 1983 l l DAY ' OCT NOV DEC JAN FE8 MAR APR MAY JUN JUL AUG SEP 1 1.98 3.12 2.83 3.12 1.27 1.70 3.12 3.96 1.42 .85 3.68 1.13 2 1.98 2.55 2.55 3.12 4.25 1.70 2.83 5.66 1.42 .85 1.13 1.13 3 1.70 5.10 2.27 2.83 4.25 1.70 3.40 5.38 1.27 .85 85 .99 4 1.70 13.88 2.27 2.55 3.96 1.42 3.40 4.53 1.27 .85 .85 .99 5 1.70 5.38 2.27 2.27 3.68 1.42 2.83 3.40 1.27 .71 .99 .99 6 1.70 3.96 2.55 1.98 3.40 1.52 2.83 3.12 1.42 .71 .85 .99 7 1.42 3.40 2.55 1.98 3.12 1.42 2.83 2.55 1.42 .71 .85 .99 8 1.42 3.12 2.27 1.98 2.83 1.42 2.55 2.55 1.27 .71 .85 .85 9 1.42 2.83 2.27 1.98 2.83 1.27 2.27 2.55 1.13 .71 .85 .85 10 1.42 '2.27 1.98 2.83 2.83 2.27 2.27 2.27 1.13 .71 .71 .85 11 1.70 4.25 1.70 4.25 2.55 3.12 3.40 2.27 .99 .57 1.70 .85 12 1.42 5.38 1.70 3.12 2.55 2.83 3.40 1.98 .99 .57 1.70 .85 13 1.42 5.38 1.70 2.55 2.27 2.83 2.55 1.98 .85 .57 .99 .85 le 1.70 3.96 1.70 2.27 2.55 2.83 2.83 1.98 .85 .57 .99 .85 15 4.81 3.68 1.70 1.98 2.27 2.55 3.68 2.27 1.27 .57 .99 .71 16 2.27 3.40 3.96 1.70 1.98 2.27 3.12 1.98 1.13 .57 .85 .71 17 2.27 3.40 2.83 1.70 1.98 1.70 2.83 1.70 .99 .57 .99 .85 18 1.98 2.83 2.27 1.70 2.55 1.70 3.12 1.70 .99 .57 .99 .71 19 1.70 2.83 2.27 1.42 2.55 7.08 3.12 1.70 .99 .57 .85 .71 20 1.42 2.55 2.27 1.42 2.27 6.51 2.83 1.70 .85 .71 .85 .71 21 1.42 2.83 1.70 1.42 2.27 8.78 3.68 1.42 .85 .85 .85 1.13 22 1.42 3.68 1.70 1.27 1.98 5.66 3.12 1.70 .85 .85 .85 3.12 23 1.42 3.96 1.98 1.70 1.98 4.25 2.55 1.70 .85 .85 .85 6.23 24 1.27 5.38 12.18 1.70 1.70 3.96 2.55 1.70 .85 .85 85 2.83 25 1.27 3.68 9.63 1.42 1.70 3.68 2.83 1.42 .71 .71 .71 1.98 26 1.27 3.40 5.95 1.42 1.70 3.40 2.55 1.98 .71 .71 7L 1.70 27 1.27 3.12 4.81 1.42 1.70 6.80 2.27 1.70 .71 .57 .71 1.42 28 1.27 4.53 4.53 1.27 1.70 6.51 2.27 1.42 2.27 .57 1.27 1.42 29 1.27 4.81 3.40 1.27 - - - 4.25 1.98 1.42 .99 .85 1.13 1.27 30 1.13 3.12 3.12 1.27 --- 3.68 3.68 1.70 .99 1.27 1.27 1.27 31 1.27 -- 3.12 1.27 --- 3,40 --- 1.42 ---
.71 3.96 --
TOTAL 51.41 121.78 98.03 62.18 70.67 103.53 86.64 72.81 32.70 22.29 35.67 39.93 HEAN 1.66 4.06 3.16 2.01 2.52 3.34 2.89 2.35 1.09 72 1.15 1.33 MAX 4.81 13.88 12.18 4.25 4.25 8.78 3.68 5.66 2.27 1.27 3.96 6.23 MIN l.13 2.27 1.70 1.27 1.27 1.27 1.98 1.42 .71 .57 .71 .71 H 3/ A42 .017 .041 .032 .020 .026 .0 34 .029 .024 .011 .007 .012 .0 14 MM 45.1 106.9 86.1 54.6 62.1 90.9 76.1 63.9 28.7 19.6 31.3 35.1 H3/H 1.69 4.13 3.21 2.04 2.56 3.39 2.94 2.39 1.11 .73 1.17 1.35 CAL YR 1982 TOTAL 1.079.78 HEAN 2.96 MAX 28.32 MIN .28 MI /H 3.01 MM 948.1 VTR YR 1983 TOTAL 797.69 MEAN 2.19 MAX 13.88 HIN .57 H5/H 2.23 MM 700.4 CLM Y R 8 2-3 TOTAL 950.58 MEAN 2.60 MAX 28.04 HIN .85 H3/H 2.64 MM 834.7 28
APPENDIX 11'-- Surf ace-water discharge at Lagoon Road Creek and North Plateau gaging stations, Oc tober 1980 through September 1983 (continued). C.--NORTH PIATEAU SITE 1 (NP1) HEAR WEST VALLEY (0421344600) 1,0 CAT 10N.--Lat 4 2' 2 7' 15* , long 7 3' 39 ' 17", Cattaraugus County, Hydrologic Unit 04120102, on left bank at northern
. perimeter of Western New York Nuclest Se rvice Center,130 m upstream f rom the mouth, 0.5 km upstream f rom Franks Creek and 6.3 km norttasest of West Valley.
DRAINACE AREA.--0.104 km 2, PERIOD OF RECORD.--October through December 1980, continuous June 1981 through September 1983. j CACE.--Craphical recorder driven by a float in a 15.3-cm steel slotted well. Outside references a vertical, enameled sta'if gage attached to the outside of the stilling well. CONTROL.--Steel, compound V-notch weir plate driven into clay till at downstream end of gaging platform enclosure. RIMARKS.--Records good. EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge, 31.2 x 10~3 m 3/s November 4,1982; no flow many days. ME AN DISCHARCE, IN CUBIC METERS PER SECOND X 10-3, WATER YEAR OCTOBER 1980 THROUCH SEPTEMBER 1981 1 DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL ' AUC SEP j j 1 .03 .77 7.36 .77 .00 .06 .17 .03 1 2 .03 .51 8.78 .77 .00 .06 .11 .06 f 3 .06 .40 5.10 .03 .06 .09 .06 l 4 .09 .91 2.80 .03 .06 .09 .06 ) 5 .11 3.68 1.76 .03 .03 .06 .40 6 .11 1.61 1.39 .03 .03 .06 '. 4 0 , 7 .09 8.21 11.33 .03 .03 .06 .11 8' .06 23.79 13.88 .03 .03 .06 .94 9 .06 4.53 10.20 40 .03 .03 .28 l 10 .06 1.39 5.10 .06 .03 .03 .11 ! I 11 .11 .91 2.80 .03 .03 5.38 .06 ) 12 7.08 .77 2.80 .03 .03 1.25 .06 ! 13 1.87- .62 5.10 .03 .03 .34 .06
- 14. .77 .91 1.76 .23 .03 .17 .17 15 .57 .77 1.39 5.38 .03 1.44 .11 16 .40 .62 1.10 1.42 .03 1.08 .06 17 .31 .40 .91 .65 .03 .28 .28 l 18 .51 .40 .77 .23 .03 .14 .14 l 19 .31 .40 .77 .09 .03 .09 .14 20 3.97 .60 .77 .09 .03 .06 .28 21 5.95 1.19 .68 2.49 .96 .03 .23 22 1.39 3.40 .62 .00 7.93 .11 .03 11.05 23 .77 .91 .62 .99 .00 1.81 .06 .03 3.12 24 .51 7.36 .62 .65 .00 .57 .06 .03 1.19 25 25.49 6.23 .62 .23 .00 .48 .06 .00 .57 26 18.41 1.39 .62 .14 .00 .17 4.25 .00 .40 27 7.36 .91 .51 .00 .!! 1.42 .00 .94 28 6.23 2.63 .51 .00 .09 1.84 .09 .40 29 2.21 1.39 .77 .00 .06 3.12 .03 .28 30 1.10 1.47 1.10 .00 .06 .77 .03 .14 31 .91 ---
.91 .00 ---
.28 .03 ---
TOTAL 86.93 79.08 93.51 -- --- -- 22.59 13.65 11.29 22.13 MEAN 2.80 2.64 3.02 -- -- --
.75 .44 .36 .74 MAX 25.49 23.79 13.88 -- --- --
7.93 4.25 5.38 11.05 MIN .03 .40 .51 - - - --- --- .00 .03 .00 .03 M3/KM2 .0 27 .0 25 .029 -- --- ---
.007 .004 .003 .007 MM 72.4 65.8 78.0 --- --- ---
18.8 11.4 9.4 18.5 M3/H 2.70 2.55 2.92 .72 .42 .35 .71 29 l l u . _ _ . _ _ _ _ _ _ _ _ _ _
APPENDIX 11 -- Surf ace-water discharge at Lagoon Road Creek and North Plateau gaging stations, October 1980 through September 1983 (continued). <j C.--NORTH PLATEAU S'1TE 1 - (NP1) NEAR WEST VALLEY (0421344600) MEAN DISCHARCE. IN CUBIC METERS PER SECOND X 10~3. WATER YEAR OCTOBER 1981 THROUGH SEPTEMBER 1982
. DAY OCT NOV DEC JAN -FEB MAR APR ^ MAY JUN JUL AU0 SEP 1 8.21 .57 1.53 2.75 1.93 .17 2.83 .11 .26 .40 .09 .11 2 12.46 .40 1.25 1.93 1.67 .14 1.53 .11 .23 .20 .11 13.88 3- 7.93 '.28 1.08 1.30 ' t.4 2 .11 1.30 .1 1 . .20 .11 , .06 2.38 4 3.12 .23 .96 12.74 1.19 .11 2.27 .09 .20 .11 1.22 1.56 5 1.93 .23 .96 3.12 .96 .20 2.38 .09 5.66 .11 .20 1.30 6 4.25 5.38 .85 1.67 .74 .28 1.81 .'0 6 3.12 .09 .17 .96 7 5.66 3.68 .85 1.53 .57 .28 1.93 .06 1.05- .11 .11 .68 8 2.66 1 81 3.68 1.42 .34 .23 1.81 .23 .43 .!! .11 40 9 1.19 1.08 1.53 1.19 .28 .17 1.53 .29 .28 .09 1.44 .23 10 .74 , .74 1.42. .96 .23 .17 2.$5 .17 .20 .09 .28 .20 11 .57 .65 1.19 .74 .23 1.64 2.33 .17 .11 .11 .17 .20 12 .40 .48 1.08 .57 .2 3 ' 6.80 3.68 .14 .11 .11 .11 .17' 13 .28 .28 .96 .28 .17 24.36 3.97 .14 .40 .09 .09 .11 14 .17 .23 .96 .11 .17 25.49 1.81 .11 .17 .09 .06 .11 15 .17 .23 .96 .06 .28 19.2 6 1.08 .11 .11 .06 .06 .11 16 .28 4.53 .96 .06 1.56 12.18 .65 .11 2.29 .06 .06 .11 17 .28 3.40 .96 .03 1.42 25.49 .48 .11 1.05 .11 .06 .11 18 .28 3.68 .96 .03 .85 10.20 .34 .11 .68 .09 .06 .11 19 3.17 1.93 .85 .03 .74 7.08 .23 .11 .40 .06 .06 .09 20 L21 8.50 .85 .03 .65 4.81 .23 .09 .28 .17 .11 .09 21 1.19 4.53 .74 .00 .57 6.23 .23 .06 .28 .09 .06 .17 22 .74 4.25 .65 .00 .57 4.25 .23 .09 .23 .06 .03 1.59 23 3.12 3.40 14.44 .00 .48 2.83 .17 .14 .20 .06 .03 2.83 24 2.66 2.80 5.10 .00 .40 2.80 .17 .11 .17 .06 .03 .60 25 1.53 1.67 .2.49 .00 .34 1.93 .17 .09 .14 .06 .06 .40 26 .1.93, 1.98 1.81 .00 .34 1.93 .17 .09 .11 .03 .03 .31 27 3.97 13.31 1.30 .00 .28 1.93 .17 .34 .11 .06 .03 4.81 28 4.25 5.38 1.08 .00 .23 1.53 .14 2.24 .31 1.36 .03 .94 29 1.67 3.12 .96 .00 ---
2.21 .14 .88 5.66 .28 .03 .68 30 1.08 2.07 .85 .00 --- 3.68 .14 .34 1.19 .11 .03 .45 31 .65 --- .74 .96 --- 7.08 ---
.28 --
.09 .20 --
TOTAL 78.70 80.82 54.00 31.51 18.84 175.57 36.97 7.17 25.63 4.63 5.19 35.69 MEAN 2.54 2.69 1.74 1.02 .67 5.66 1.23 .23 .85 .15 .17 1.19 MAK 12.46 13.31 14.44 12.74 1.93 25.49 3.97 2.24 5.66 1.36 1.44 13.88 Mih .17 .23 .65 .00 .17 .11 .14 .06 .11 .03 .03 .09 M3 /042 .0 24 .026 .017 .010 .006 .055 .012 .002 .008 .001 .002 .011 MM 65.6 67.4 45.0 26.3 15.7 146.4 30.8 6.0 21.4 3.9 4.3 29.8 M3 /H 2.46 2.60 1.68 .98 .65 5.46 1.19 .22 .82 .14 .16 1.15 VTR YR 1982 TOTAL 554.7 3 MEAN 1.52 MAX 25.4 9 MIN .00 M3 /H 1.4 7 MM 462.6 30
4 . . . J APPENDIX 11 A- Surface-water discharge at Lagoon Road Creek and North Plateau geging stations. October 1980 through September 1983 (continued). C.--NORTH PIATEAU SITE 1 (NP1) NEAR WEST VALLEY (0421344600)
' MEAN DISCHARCE, IN CUBIC METERS PER SECOND 1 10~3, WATER YEAR OCTOBER 1982 THROUGH SEPTEMBER 1983 DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUC SEP 1' '.34 3.68 -1.30 1.25 .60 .40 .9 4 .- 2.27 .20 .03 1.08 .11 2 .26 2.01 1.13 1.13 7.93 .34 .( 2 7.36 .17 .03 .09 .06 3 .23 9.63 1.02 1.02 3.97 .31 1.53 3.12 .!? .03 .03 .03 4' .20 31.15 - 1.16 .94 1.27 .28 '!.36 1.78 .17 .03 ' .00 .03 5 .17 4.53" .99 .79 .79 .26 .94 1.19 .14 .03 .03 .03 6 .17 1.84 .85 .77 - .71 .2 3 - .77 1.08 .28 .03 .03 .03 7 .17 1 36 .74 1.05 .68 .20 .91 .9 4 - .23 .03 .03 .03 8 ' .17 .96 .60 .91 .62 .20 - .77 .7 9 - .17 .03 .03 .03 9 c .14 .82 .51 .79 .62 '.20 .68 .74' .14 .03 ,03 .00 -
10 .11 .65 .43 1.76 .60 .82 .62 .62 .14 .03 .03 .00 11 .37 3.68 .43 2.35 .60 1.47 1.53 .57 .11 .03 .23 .00 I
-8.50 .62 .85 .48 .11 .03 .37 .00 12 .23 .40 .91 1.36 13 .20 - 5.10 .34 .74 .62 .85 .77 .45 .11 .03 .06 .00 4 14 .65 2.35 .34 '.68 .65 .71 .54 .43 .09 .03 .03 .00 'l 15 5.95 1.76 .68 .62 ,65 .57 1.90 .54 .23 .00 .03 .00 !
I 16 1.02 'l.44 3.97 .57 .62 .43 .85 .43 .11 .00 .00 .00 J 17 .91 1.30 1.44 .51 .65 .34 .62 .26 .09 .00 .03 .03 18 .57: 1.19 1.08 .48 1.30 .34 1.10 .23 .09 .00 .03 .03 j 19 .45 1.10 1.02 .45 1.30 5.10 .94 .2 3 ' .06 .00 .03 .03 'I 20 .37 1.02 .96 .45 1.05 3.68 .94 .23 .06 .00 .00 .03 21 .34 1.73 1.08 .43 .85 9.06 1.70 .20 .06 .03 .00 .23 22 .28 2.69 1.08 .43 .71 2.44 .94 .34 .06 .03 .00 2.15 23 .26 2.04 1.10 1.36 .68 1.76 .62 .43 .06 .03 .00 5.38 24 .23 5.10 20.67 1.53 .57 1.50 .68 .28 .06 .03 .00 1.05 25 .20 1.67 14.16 1.08 .51 1.19 1.02 .23 .03 .00 .00 .43 26 .20 1.44 6.80 .94 .48 1.10 .77 .60 .03 .00 .00 .23 27 .2 0 - 1.44 4.25 .77 .48 7.93 .57 .26 .03 .00 .00 .17 28- .20 6.23 3.40 .62 .45 7.65 .45 .23 .85 .00 .31 .14 29 .17 5.66 1.84- .54 --- 2.78 .43 .23 .06 .03 .11 .11 30 .17' 2.35 1.44 .57 - - - 1.53 2.18 .45 .03 .14 .14 .11 31 .37 - 1.36 ' .71 --- 1.19 ---
.23 -- .03 2.55 ---
TOTAL 15.30 114.42 76.57 27.15 30.58 55.71 29.25 27.22 4.14 .74 5.30 10.47 MEAN .49 3.81 2.47 .88 1.09 1.80 .98 .88 .14 .02 .17 '.35 MAX 5.95 31.15 20.67 2.35 7.93 9.06 2.18 7.36 .85 .14 2.55 5.38 MIN .11 .65 .34 .43 .45 .20 .43 .20 .03 .00 .00 .00 MS/KM8 .005 .037 .024 .008 .010 .0 17 .009 .008 .001 .000 .002 .003 MM 12.8 95.4 63.9 22.6 '15.5 46.5 24.4 22.7 3.5 .6 4.4 8.7 M3 /H .47 3.68 2.38 .85 1.05 1.74 .95 .85 .14 .02 .16 .34 C Af. YR 19 82 TOTAL 547.49 ME AN 1.5 0 MAK 31.15 MIN .00 MS /H 1.4 5 MM 456.6 WTR YR 1983 TOTAL 396.85 MEAN 1.09 MAK 31.15 MIN .00 MS /H 1.05 MM 331.0 C1Ji YR 82-3 TOTAL 435.01 MEAN 1.19 MAX 31.15 MIN .03 M3 /H 1.15 MM 362.8 31
l l ' ! .. b
'9 ;
{ l APPENDIX:II -- Surface-water discharge at Lakoon Road Creek and ' North Plateau' gaging stations,; October 1980 through September.1983 1 (c ontinued) . . D.--NORTH PLATEAU SITE 2'(NP2) NEAR WEST VALLEY (0421344430) _ STAFF CAGE' READINGS'AND DISCHARCE MEASUREMENTS,. WATER YEARS'1981-1983 (Gage height in centimeters, discharge measured'in cubic meters per second x 10-3) Water Year 1981 Water Year 1982 Water Year 1983 Gage Di s- Cage. Dis- Gage Dis-Date height charge Date height charge Date height charge Oct. 10 1.2 0.03 Oct. 1- 1.2 Oc t. 15- 1.8 0.34 14 1.4 No v. 17 1. 5 - 0.15 Nov. 10 1.8 15 1.2 . .0 5 19 - 1.8 ' Fe b. 3 2.4 l 16 1.3 .06 Dec. 1- il.5 , .20 Ma r. 3 1. 8 . q 17 1.2 .05 8 1.5 .21' Apr. 2 3 .2.1 1 20- 1.8 Jan. 5 1.8 May 20 2.1 22 1.8 Ma r. 19 3.4 23 2.1 Nov. 17 1.8 July 9 1.2 .04 27 2.1 , 18 1.8' Aug. 9 1.5 .14 June 6 2.1- ! 24 1.8 15 1.8 30 ' 1. 5 28 2.4
- De c. . 1 .1. 5 - July 5 1.5 7 1.5- 9= .9
-8 1.8 19 1.2 14 1.5 24 1.8 29 1.5. Aug. 1 2.4 Feb. 17 1.8 16 2.1 Mar. 3 2.1 24 1.8 June 12 1.5 30 1.8 July 8 1.5 Sep t. 14 1.8 Aug. 20 1.2 20 1.8 1984 Oc t. 15 1.8 .34 32
l APPENDIX III.--Description and Dischstge of Seepage Faces Along Perimeter of the No rth Plateau l l The north plateau .is the area within the West Valley study site that con-tains the reprocessing plant, high-level waste tanks, and associated treatment and storage f acilities. Host of the water draining the _ north plateau flows past the NPl and NP3 streamflow stations, but some discharges f rom a series of j seepage f aces along the perimeter of the plateau. Several seepage surveys were l made during 1983 to determine the location, magnitude, and role of these springs I in the discharge pattern of the north plateau. i A seepage f ace is typically a zone 1.5 to 10 m long, downslope f rom the interf ace between the alluvium and underlying till, where water seepage is ; sustained. Signs of such an area are large amounts of black decomposing organic 1
. matter and slumping ground. The soil surf ace is moist, and vegetative species '
j common to wetlands can be found at some locations. ] l Descriptions of seepage faces around the north plateau are given below; ; discharge measurements and altitudes are tabulated on p. 35. The descriptions j begin with the seepage area now covered by a parking lot for the site adminis- ! ! tration complex (fig. 4) . The nunbering system proceeds clockwise around the l plateau and ends at the railroad grade. kater may flow at several distinct points within a seepage area or as general seepage from the entire area. l Seepage-Face Descriptions l (Locations are shown in fig. 4. ) S F- 1 Two seepage areas underlie what is now the upper parking lot for the administration building. Drainage pipes were placed to direct seepage away f rom the paved area. Flow f rom these seeps generally
' infiltrates back into the alluvial material downslope from the parking lot. Sampling suggests intermittent or ephemeral flow.
SF-2 Several distinct wet zones. The northwesternmost seep at the base of a 7.5-serthick maple tree was measurable; the others have smaller discharge rates. SP-3 Several small seeps with small organic decomposition cones and little discernible discharge. S F-4 A 20-m f ace along the lef t bank downstream f rom the NPl gaging station with several distinct wet zones; none observed on right bank. Se epage on lef t bank observed year-round but too dif fuse to measure. Slumping is seen further downstream. S F-5 Two distinct seepage zones. Minimal flow, no measurement possible. Standing water observed in a small depression above the seepage f aces; this area may feed these seeps. S F- 6 Numerous seeps combined in this unit. All seeps are small and generally appear as broad mud flats on gentle slopes but disappear or become channelized on steeper slopes. No measurements made. 33
p , 0 b 1 3 APPENDIX III (continued) S F-7 : L Seepage appears to begin inside old. security. fence .northeas t of. the - gravel pits.' Seepage area' broadens downslope (as in SF-6) and narrows to: s everal distinct . chat els as slope steepens. . Measureable flow in one
? channel.-
' S F- 8 l NP2 drainage .-' Seepage' zone begins inside security fence in swampy. area.
Large increase in flow between drainpipe under fence and NP2 gage i pool ' l Measurement made at: lower weir pool in NP2, channel. S F-9 : 'Two seepage zones in this face. Southernmost . zone measurable;. the other !
' too dif fuse to' measure. Alluvial' material 1.5 co 2.5-s thick over the !
surface. S F-10 Very active ' seepage area on lef t bank 45 m downstrean from the NP3 , l s tation. . An active slump 10 m long had ve ry dif fuse flows . A .new mud-flow appeared in spring of 1983 when a yellow-brown mud emanated from a 1 0.25 m-diameter hole on the steeper slope. A 1- to 1.25,e-wide sluiceway channels the mud to the NP3 streamcourse. No measurements possible.
. S F-11 Active Jseepage area along right bank of NP3 channel.. Flow occurs along l entire bank, f rom 10 m upstream of station. through the gage pool' area -
(approximately 15 m). . The major seepage point (upstream from the gage) :l
- n. was measured; the.others were not. This . area actively flows year-r ound.
l S F-12 7.5-m-long seepage area with flow dispersed along entire face. - Flow divides into two broad channels, neither of which is measurable. i Magnitude of seepage similar to SF-13. S F-13 Ac tive seepage f rom 4 5-m-long f ace. Flow becomes channelized one-third
~
'of the way down the slope.
1 SF-14 o Seepage f rom 6-m-long f ace. Flow becomes channelized two-thirds of the i way downslope;'most seepage is probably in this channel. S F-15 Seepage f rom 6-a-long f ace. Flow becomes channelized halfway downslope; most seepage was measured in this channel. SF-16 Seepage f rom 10.5-m-long f ace. Flow is channelized halfway downslope, where mos t flow is probably. concentrated. SP-17 Outlet of f rench-drain system, east of the large storage lagoons. Appreciable flow with black (manganese?) stain in channel. SP-18 Seepage f rom field east of plant complex that forms several small con-nected wetlands (opposite low-level radioactive-wasta treneSca). More drainage flows along south side of road. S F-19 Long seepage area halfway between railroad and SF-18. Small individual seeps near crest of slope. One of four had measurable flow. L 34
.i l
APP 8NDIX III (continued) Seepage-face altitudes and discharge measurements [Locattons are shown in f ig. : 4. ] Se e page L Al t i t trie Discharge, in liters per minute face (m) 3/3/83 7/5/83 10/6/83 S F-1 a pprox 4 35.0'0 FM* FM 1.08 2 -430.77' O.ll' d ry dry 3 ap peox 418.00' .FM FM FM 4 416.75 FM FM FM S 410.66 FM. d ry FM 6 415.50 FM FM FM ! 7 415.84 1.50 FM 95 8 (NP2)' 413.67- 5.57 2.10 6.045 9 410.96 .38 dry .10
-10 414.25. FM .2 .32
! 11 414.07 2.32 1. 9 2.38 l 12 415.44 FM d ry dry 13 415.20 1.62 FM FM 14 415.41 l.97 FM FM l 15 414.53 .38 1.23 1.40 j 16- 416.14 .33 FM FM i 17 416.21 17.2 12.9 18.7- )' 18 418.48 8.28 FM 12.0 19 419.28 .50 dry dry 40.17 18.3 43.0-Ra.inf all wi thin i 2 4 h our s (mm) (00.0) (00. 0) (2 4.1) ;
- FM - seepage face moist but no measurable flow _I
$ NP2 flow at weir was 2.67 L/ min, additional seepage flow i f rom recent rains 'was 3. 37 L/ min, measured at downstream me as u r eme nt s e c t io n. j 35
APPENDIX IV.--Water-level altitudes in wells on north plateau, March 1982 through March 1983. ( Altitudes are in me ters. Well locations are shown in fig. 4. ] Well Number Date 80-1 80-2 80-3 80-4 80-5 80-6 80-7 80-8 1982 March 4 430.6 432.8 419.5 418.9 416.4 416.2 424.2 429.1 April 2 431.2 433.0 420.1 420.0 417.0 417.0 424.3 429.7 May 3 430.2 432.6 419.1 4 18.9 416.3 416.4 424.2 429.0 June 1 430.8 432.5 419.4 418.8 416.3 416.2 424.2 428.9 July 1 431.1 433.0 419.6 419.2 416.5 416.4 424.3 4 29 .5 August 5 431.0 432.5 419.5 418.8 416.1 416.0 424.2 429.1 September 13 430.5 432.8 419.2 4 19.0 416.4 416.7 424.2 4 29 .2 October 4 430.6 432.8 419.8 419.0 4 16 .3 416.3 424.2 4 29 . 2 November 10 430.9 433.0 419.8 4 19 . 7 416.8 416.9 424.3 4 29 . 5 November 30 431.2 433.1 420.0 420.1 416.9 416.9 424.4 4 29 . 5 December 29 431.0 433.1 420.0 420.1 4 17 .0 417.0 424.4 429.6 1983 February 4 431.1 433.1 4 19.4 4 19.5 416.9 416.7 424.5 4 29 .6 March 3 430.4 432.7 419.5 418.9 416.4 4 16.4 424.2 4 29.0 March 25 431.0 432.9 420.1 419.6 416.8 416.8 424.3 429.5 36
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