ML19309F819

Nonradiological Environ Operating Rept for 1979, Vol 1

ML19309F819
Person / Time
Site:	North Anna
Issue date:	04/02/1980
From:	Jason White VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
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Text

O 8 ooso1o 3El O-Virginia Electric and Power Company North Anna Power Station 1979 hon-Radiological Environmental Operating Report Units 1 and 2 Volumes 1, 2 and 3 Recomend Approval: d [h, d Station Biologist

/

Date: 3f24 /70

/

Approved by: > /d_ _- x -

f Executive Manager Environmental Services

(

Date: 84) /984 Approved by: ND b b, Q tation Manager i' North Anna Power Station Date: M - O, - 8 D D l l  !

.- -.. x _ .. . .

Cr Table of Contents Volume 1 Page Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . i Non-Radiological Limiting Conditions . . . . . . . . . . . . . . 1.0 - 1.1 Thermal Measurements . . . . . . . . . . . . . . . . . . . . . . 2.0 - 2.81 Impingement of Fish ...................... 3.0 - 3.18 Entrainment of Ichthyoplankton . . . . . . . . . . . . . . . . . 4.0 - 4.13 Transmission Line Right-of-Way: ................ 5.0 - 5.1 Herbicide Management and Erosion Control Onsite Meteorological Monitoring . . . . . . . . . . . . . . . . 6.0 - 6.18 Chemical Inventory . . . . . . . . . . . . . . . . . . . . . . . 7.0 - 7.2 Volume 2 Water Quality and General Ecological Survey Prepared by:

James R. Reed and Associates, Inc.

813 Forrest Drive Newport News, Virginia 23606 Volume 3 Vegetation Studies Prepared by:

l Michael J. Scanlan, Ph.D.

Virginia Commonwealth University Department of Biology 816 Park Avenue Richnond, Virginia 23284 O

- es e 1

INTRODUCTION This Annual Non-Radiological Operating Report is submitted to the Director of the Nuclear Regulatory Connission's Region II Office as required in North Anna power Station, Units 1 and 2, Environmental Technical Specifications (E.T.S.) Section 5.6.1.1, Part A, Docket Nos. 50-338, 50-339. Included are summarizations and interpretations of the results of the non-radiological environmental surveillance programs (E. T. S. Sections 2.1, 3.1 and 4.0) conducted throughout the year 1979. The purpose o'f this annual report is to detennine if there is any harmful effect or evidence of irreversible damage on Lake Anna, Virginia and surrounding areas as a result of the operation of North Anna Power Station. When appropriate, comparisons are made with pre-operational studies, operational controls and previous environmental monitoring h reports.

O i

O-i i

i Non-Radiological Limiting Conditions E. T. S. Section 2.1 O

1.0

./

O There are no non-radiological limiting conditions for operation.

l O

1.1

O-1 l

1 I

I Thermal Measurements

^

E.T.S. Section 3.1.1.2 l

O 2.0

Thermal Measurements Two methods were used to obtain temperature data from Lake Anna:

(1) Fixed recorders (2) Multi-vessel, multi-vehicle synoptic surveys Endeco Type 109 fixed recording instruments (Environmental Devices Corporation - Marion, Massachusetts) were used in obtaining an hourly filmed record of water temperature at various stations (Fig. 2.1). Instruments at stations 1, 3, 4, 5, and 6 were located at near surface (1 meter), mid-depth, and bottom; at stations 2, 7, 8, and 9 only near surface instruments were employed. Instrument maintenance and processing of data occurred every two months.

Whitney Models TC-5 and TC-5C Field Thermometers (Montedoro-Whitney Corporation - San Luis Obispo, California) were used during the quarterly synoptic temperature surveys. Hourly temperatures were recorded at meter intervals in selected locations during daylight (Fig. 2.2).

l Results and Discussion l

ENDECO Instruments Means of daily high, daily mean, and daily 1cw values recorded by ENDECOS are provided in Table 2.1 by month. Station designations are as follows: j Designations Station (Fig. 2.1)

NAL 7195 6 NAL 719N 5 NAL 208 4 1

O l 2.1

O- Designations Station (Fig. 2.1) l l

NAL INT 2 l l

NAL THIS 1 l NAL BRPT 3 NA DISC 1 7 NA WHTF2 8 NA WHTF3 9 NARIV651 651 Bridge NARIV601 601 Bridge A code letter of T M, sr B following the designation code where applicable, indicates a top, mid-depth, or bottom instrument. The code's absence signals a single near surface instrument.

Means of daily low and daily high surface temperatures ranged from O~ ~ 0.4C et the 6si Bridse sa Feeruary to 34.sc at station 7 <discharse) in August. Steady-state surface temperatures (means of daily means) at station 3 (near the Dam) and station 2 (intake) were 3.3C and 2.6C, respectively, in February and 27.2C and 27.4C, respectively, in August.

Stratification in the lake was noticeable from April through October.

l Synootic Temperature Surveys .

Survey data are included for the months of January, May, August, and l November. Data for February are replaced by January's because icing precluded the February survey.  !

Surface temperatures ranged from 1.8C at station 0 to 6.6C at station D during the January survey (Table 2.2). Temperatures (surface) recorded were colder on the upper lake than on the lower, the warmest temperatures tending

=

1 O I 2.2

O-to be found in the location of the Dam. Greatest daily changes in surface temperatures also occurred on the upper lake. The only stratification observed was of the inverse type and occurred from station M upstream.

Surface to bottom ATs were generally less than 1.5C, the water column exhibiting isothermy.

The May survey (Table 2.3) produced a surface temperature range from 19.3C (station D) to 24.7C (station P). Stratification was present at all l

stations except B. A strong, identifiable thermocline was not present at every station and what thermocline was present was often broken and/or I erratic in nature. Warmest surface temperatures were found on the upper lake.

Stratification was apparent at most stations during the August survey (Table 2.4). Exceptions to this (no stratification evident) were stations 0, O. P, Q on the upper lake and station B on the lower lake. The thermocline i

commenced at 6-10 meters of depth and was 2-7 meters in width depending on station. Surface temperatures ranged from 24.6C (station Q) to 26.2C (stations 0, 0). There appeared to be little difference between upper and i lower lake stations.

No stratification was present during the November survey (Table 2.5).

Surface temperatures ranged from 11.2C (station Q) to 14.8C (station C).

Very little difference between surface and bottcm temperatures existed as the water celumn approached winter steady-state isothermal conditions. At some statir,ns, afternoon surface temperatures were elevated reflecting to be a solar-related influence. l l 2.3

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./

l 1

O-i  !

I i

Table 2.2

(

l

! I l

.l l

, North Anna Synoptic Temperature Survey

January 16, 1979 Survey began - 0800 l

,i Survey Completed - 1600 i

Temperature - Degrees Celsius i

Instruments: Whitney Models TC-SC and TC-5 Field 3

O .

Thermometers Synoptic Stations A-Q Depth in Meters j

i l

4 4

j O

l 2.10 i

l

Table 2.2 NORTH ANNA SYNOPTIC TEMPERATURE SURVEY _

O' J_ANUARY 16, 1979 I STATloN "A" TIME (EST) -

DEPTH 0814 0907 1025 1107 1224 1310 1407 01 13,0 JJ,16, Sfc 59 5.9 59 59 6.0 6.0 6.1 6.1 6.0 1M 59 59 59 59 6.0 6.0 6.I 6.I 6.0 2 59 59 5.9 59 6.0 6.0 6.1 6.1 6.0 3 59 59 59 59 6.0 6.0 6.0 6.I 6.0 4 59 59 59 59 6.0 6.0 6.0 6.1 6.0 5 59 59 5.9 59 6.0 6.0 6.0 6.1 6.0 6 5.9 59 5.9 59 6.0 6.0 6.0 6.1 6.0

( 7 59 5.9 5.9 59 6.0 6.0 6.0 6.I 6.0 8 59 59 59 59 6.0 6.0 6.0 6.0 6.0 9 59 59 59 59 6.0 6.0 6.0 6.0 6.0 10 59 59 59 59 6.0 6.0 6.0 6.0 6.0 11 5.9 59 59 59 6.0 6.0 6.0 6.0 6.0 12 59 59 59 59 6.0 6.0 6.0 6.0 6.0 13 59 59 59 59 6.0 6.0 6.0 6.0 6.0 14 59 5.9 59 5.9 6.0 6.0 6.0 6.0 6.0 l 15 59 59 5.9 59 6.0 6.0 6.0 6.0 59 16 59 59 59 59 6.0 6.0 6.0 6.0 59 17 5.9 59 59 59 6.0 6.0 6.0 6.0 59 18 59 5.9 59 59 6.0 6.0 6.0 6.0 59 19 59 59 59 59 6.0 6.0 6.0 6.0 59 O

2.11

l 1

0-Table 2.2 NORTH ANNA SYNOPTIC TEMPERATURE SURVEY JANUARY 16, 1979.

STATION "B" TIME (EST) l DEPTH 0806 p10,1 0 1023 1106 1222 IJ08 1402 ,lJ01 1600 Sfc 59 6.0 6.0 6.0 6.1. 6.1 6.2 6.2 ,

6.1 IM 5.9 6.0 6.0 6.0 6.1 6.1 6.2 6.2 6.1 2 59 6.0 6.0 6.0 6.1 6.1 6.1 6.2 6.1 3 59 6.0 6.0 6.0 6.1 6.1 6.1 6.2 6.1 4 59 6.0 6.0 6.0 6.1 6.I 6.1 6.2 6.1 5 59 6.0 6.0 6.0 6.1 6.1 6.1 6.2 6.1 0 6 59 6.0 6.0 6.0 6.1 6.1 6.1 6.2 6.1 7 5.9 6.0 6.0 6.0 6.1 6.1 6.1 6.1 6.1 8 59 6.0 6.0 6.0 6.1 6.1 6.1 6.1 6.1

)

O l

2.12 l

I

- . . - . . - . . . . _ . - . - . . . l l

Table 2.2 O NORTH ANNA SYNOPTIC TEMPERATURE SURVEY JANUARY 16, 1979 STATION "C" TIME (EST)

DEPTH 0830 0900 ,1013 1100 1217 ,1J0J, 1457 1510 1611 Sfc 59 59 59 6.0 6.0 6.0 6.I 6.0 6.0 IM 59 5.9 5.9 6.0 6.0 6.0 6.1 6.0 6.0 2 59 59 59 6.0 6.0 6.0 6.1 6.0 6.0 3 59 59 5.9 6.0 6.0 6.0 6.1 6.0 6.0 4 59 59 59 6.0 6.0 6.0 6.1 6.0 6.0 5 59 59 5.9 59 6.0 6.0 6.I 6.0 6.0 6 59 5.9 59 59 6.0 6.0 6.1 6.0 6.0 7 59 5.8 59 5.9 6.0 5.9 6.0 6.0 59 8 59 5.8 5.9 5.9 6.0 59 6.0 6.0 59 9 5.8 5.8 5.9 5.8 6.0 59 6.0 6.0 59 10 5.8 5.8 59 5.8 6.0 5.9 6.0 6.0 59 11 58 5.8 5.8 5.8 59 59 6.0 6.0 59 12 5.8 58 5.8 5.8 5.9 59 6.0 .6.0 59 l 13 5.8 5.8 5.8 5.8 59 5.9 6.0 59 5.9 14 5.7 57 5.8 58 5.9 59 6.0 59 59 15 57 5.7 5.8 5.8 59 59 6.0 5.9 5.8 16 57 57 5.8 5.8 5.9 59 5.9 59 58 17 57 57 5.8 5.8 59 59 5.9 59 5.8 18 5.7 5.7 5.8 58 5.9 59 59 59 5.8 19 5.7 5.7 5.8 5.8 59 5.9 59 5.9 5.8 l

O 2.13

./

Table 2.2 NORTH ANNA SYNOPTIC TEMPERATURE SURVEY JANUARY 16, 1979 STATION "D" TIME (EST) 05PTH 0818 0910 _1029 1108 1227 J,3,J,1 1404 1,j,],1 1603 Sfc 6.3 6.3 6.4 6.4 6.5 6.5 6.5 65 6.6 IM 63 6.3 6.4 6.4 6.5 6.5 65 6.5 6.6 j 2 6.3 6.3 6.4 6.4 65 6.5 6.5 6.5 6.5 3 63 6.3 6.4 6.4 6.5 6.5 6.5 6.5 6.5 4 6.3 6.3 6.4 6.4 6.5 6.5 6.5 6.5 6.5 5 63 i.3 6.4 6.4 6.5 6.5 6.5 6.5 65 6 63 63 6.4 6.4 65 6.5 6.5 6.5 6.5 7 6.3 6.3 6.4 6.4 6.4 6.5 6.5 6.5 6.5 O8 6.3 6.3 6.4 6.4 6.4 65 6.5 6.5 65 9 63 6.3 6.3 6.4 6.4 6.5 6.5 6.5 65 to 6.3 6.3 6.3 6.4 6.4 65 6.5 6.5 6.5 11 6.3 6.3 63 6.4 6.4 6.5 6.5 6.5 6.5 12 6.3 63 6.3 6.4 6.4 65 6.5 6.5 6.5 13 6.3 6.3 63 6.3 6.4 6.5 6.5 65 6.5 14 6.3 6.3 63 6.3 6.4 6.5 6.5 6.5 65 15 63 63 6.3 6.3 6.4 6.5 6.5 6.5 65 16 6.3 6.3 6.3 63 6.4 6.5 6.5 65 6.5 O

2.14

Table 2.2 NORTH ANNA SYNOPTIC TEMPERATURE SURVEY JANUARY 16, 1979 STATION "E" TIME (EST)

DEPTH 0825 E 1019 1104 1220 1306 1458 1508 1606 Sfc 6.0 6.0 6.0 6.1 6.1 6.2 6.3 6.4 6.2 1M 6.0 6.0 6.0 6.1 6.1 6.1 6.2 6.4 6.2 2 6.0 6.0 6.0 6.1 6.1 6.1 6.2 6.4 6.2 3 6.0 6.0 6.0 6.1 6.1 6.I 6.2 6.3 6.2 4 6.0 6.0 6.0 6.1 6.1 6.1 6.2 6.2 6.2 5 6.0 6.0 6.0 6.1 6.1 6.1 6.1 6.2 6.1 6 6.0 60 6.0 6.1 6.1 6.0 6.1 6.2 6.1 7 6.0 6.0 (. . o 6.1 6.1 6.0 6.1 6.2 6.0 6.0 6.0 6.0 6.1 6.1 6.0 08 9 59 6.0 6.0 6.0 6.1 6.0 6.1 6.0 6.1 6.0 6.0 6.0 10 59 6.0 6.0 6.0 6.1 6.0 6.0 6.0 6.0 11 59 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 12 59 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 13 5.9 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 14 59 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 15 59 59 6.0 6.0 6.0 6.0 6.0 6.0 6.0 16 59 5.9 6.0 6.0 6.0 6.0 6.0 6.0 6.0 17 59 59 6.0 6.0 6.0 6.0 6.0 6.0 59 18 59 5.9 6.0 6.0 6.0 6.0 6.0 6.0 5.9 l

O 1

l 2.15 l l l

W 's Table 2.2 O' NORTH ANNA SYNOPTIC TEMPERATURE SURVEY JANUARY 16, 1979 STAT I0rl "F" TIME (EST)

DE?TH 0820 @ 00 1026 0 1,051 22 1,2,22 1300 1420 1500 1600 l S f c-5.8 57 57 57 5.8 5.8 5.9 6.0 6.0 IM 5.8 57 57 5.7 5.8 5.8 5.9 6.0 6.0 2 58 57 57 57 5.8 5.8 59 59 6.0 3' 58 57 5.7 5.7 5.8 5.8 5.9 59 6.0 4 5.8 57 57 57 5.8 5.8 59 59 6.0 5 5.8 5.7 5.7 57 5.8 5.8 5.9 59 5.9 6 5.8 57 57 57 5.8 5.8 5.9 5.9 59 1

1 7 5.8 . 5.7 57 5.7 5.8 5.8 5.9 5.9 59 8 5.8 5.7 5.7 5.7 5.8 5.8 59 59 59 9 5.8 5.7 57 57 5.8 5.8 5.9 59 59 to 57 57 57 5.7 58 5.8 59 59 5.9 11 57 57 57 5.7 5.8 5.8 59 59 59 12 5. 7 5.7 5.7 5.7 5.8 5.8 5.8 59 59 13 5. 7 57 57 57 5.8 5.8 5.8 59 59 14 57 57 57 57 5.8 5.8 5.8 59 59 15 5. 7 5.7 5.7 57 5.8 5.8 5.8 5.9 5.9 16 5.7 57 57 57 5.8 5.8 5.8 5.8 59 I

b) v i

l 2.16 i

?

Table 2.2

, NORTH ANNA SYNOPTIC TEMPERATURE SURVEY JANUARY 16. 1979 STATION "G" TIME (EST)

DEPTH 0816 0 09.01 1020 0 1J 0,0 1217 1306 1415 1510 1610 Sfc 57 5.6 5.7 5.6 57 5.8 5.7 5.7 5.7 IM 5.7 5.6 57 5.6 5.7 5.7 5.7 5.7 57 2 57 5.6 57 5.6 5.7 57 5.7 5.7 5.6 3 57 5.6 5.7 5.6 5.7 5.7 57 5.7 5.6 i 4 57 5.6 57 5.6 5.7 5.7 5.7 5.7 5.6 5 57 5.6 57 5.6 5.7 5.6 5.6 ,., 5.6 6 5.7 56 57 5.6 5.7 5.6 5.6 5.7 5.6 7 57 5.6 57 5.6 5.7 5.5 5.6 5.7 5.6 8 5.7 5.6 57 5.6 57 5.5 5.6 5.6 5.6 9 5.7 5.6 57 5.6 56 5.5 5.5 5.6 5.6 10 57 5.6 57 5.6 5.6 5.5 5.5 5.6 5.6 11 57 5.6 57 5.6 5.6 5.5 5.5 5.6 5.6 12 5.7 5.6 5.7 5.6 5.6 5.5 5.5 5.6 5.6 13 5.7 56 57 5.6 5.6 5.5 55 5.6 5.6 14 5.7 5.6 5.7 5.6 5.6 5.5 5.5 5.6 5.6 15 57 5.6 5.7 5.6 5.6 55 5.5 5.5 5.6 16 57 5.6 5.7 5.6 5.6 5.5 5.5 5.5 5.6 17 5.7 5.6 5.7 5.6 5.6 55 5.5 5.5 5.6 O

2.17 il

Table 2.2 NORTH ANNA SYNOPTIC TEMPERATURE SURVEY JANUARY 16, 1979.

STATION "H" TIME (EST)

DEPTH 0812 0914 1014 1116 1214 M 1400 M 161.3 Sfc 55 55 55 5.5 5.6 5.7 5.8 5.7 5.6 IM 55 55 55 55 5.6 5.7 57 57 5.6 2 5.5 55 5.5 55 5.6 9( 5.7 5.7 5.6 3 5.5 55 5.5 55 56 5.6 57 57 5.6 55 55 55 55 5.6 55 5.7 5.7 5.6 5 55 5.4 55 5.5 55 5.5 5.6 5.7 5.6 6 55 54 55 5.5 55 5.5 5.6 5.6 56 I

l 7 55 54 5.5 54 5.5 5.5 5.5 5.5 5.6 8 5.5 5.4 55 5.4 5.4 5.4 5.5 5.4 5.5 l

9 55 54 5.5 54 5.4 5.4 5.5 54 5.5 l

l 10 5.5 54 5.5 5.4 5.4 5.4 5.5 5.4 5.5 11 5.5 54 55 5.4 5.4 5.4 5.5 5.4 5.4 12 55 5.4 55 5.4 5.4 54 5.5 53 5.3 13 55 5.4 55 5.4 5.4 5.4 5.4 53 5.3 14 55 5.4 55 5.4 5.4 5.4 5.4 5.3 5.3 15 55 54 55 54 5.4 5.4 5.4 5.3 53 16 5.4 5.4 55 5.4 5.4 5.4 5.4 5.3 53 I

O 2.18

Table 2.2 Os NORTH ANNA SYNOPTIC TEMPERATURE SURVEY JANUARY 16, 1979 STATl0f4 "l" TlHE (EST)

DEPTH 0805 g _1001 _1126 1207 1318 1410 ,1,j 2], 1620 Sfc 53 53 53 53 5.4 5.4 5.4 5.4 53 Itt 53 53 53 5.3 5.3 5.4 5.4 . 5. 4 53 2 53 53 53 53 5.3 5.4 5.4 5.4 5.3 3 5.3 53 53 53 5.3 53 5.4 5.4 53 4 53 53 53 5.3 53 5.3 5.4 5.4 5.3 5 53 53 53 53 5.3 53 5.4 5.4 5.3 6 5.3 53 53 53 5 -3 53 5.4 5.4 53 7 53 5.3 53 53 54 5.3 55 5.3 5.3 8 53 53 53 5.3 5.4 5.3 53 53 5.3 9 5.3 53 53 53 5.4 53 5.3 53 53 10 53 5.3 53 5.3 54 5.3 5.3 5.3 53 11 53 53 53 53 5.4 53 53 53 5.3 12 53 53 5.3 53 5.4 53 53 5.3 53 13 53 53 53 5.3 5.4 5.3 5.3 5.3 5.3 i4 53 53 53 5. 2 54 53 53 53 5.3 15 53 53 53 52 5.4 5.3 5.3- 5.3 53 i

O 2.19 l --

Table 2.2 NORTH ANNA SYNOPTIC TEMPERATURE SURVEY JANUARY 16, 1979 i STATION "J" TIME (EST)

DEPTH 0809 0920 1006 1121 1210 1315 1407 1518 1619 sfc 52 52 5.2 52 53 54 5.5 5.4 5.4 IM 52 5.2 52 5.2 53 5.4 5.5 5.4 5.4 2 52 5.2 52 5.2 53 5.4 5.4 5.4 5.4 3 52 52 52 52 5.3 53 5.4 53 5.3 4 52 5.2 52 5.2 5.3 5.3 5.4 5.3 53 5 5.2 52 52 5.2 52 53 5.4 5.3 53 6 52 5.2 5.2 5.2 5.1 5.3 5.3 5.3 53 7 5.2 5.2 5.2 5.2 5.2 5.3 5.3 5.3 5.3

'8 52 5.2 52 52 5.2 5.2 52 5.3 5.3 9 52 5.2 5.2 52 5.2 5.2 5.2 5.3 5.3 10 52 52 52 52 52 5.2 5. 2, 5.2 5.2 11 52 52 5.2 5.2 5.2 5.2 5.2 5.2 52 12 52 5.2 5.2 5.2 ~ 5.2 52 5.2 5.2 5.2 13 5.2 52 52 5.1 52 5.2 52 5.2 52 14 5.2 52 52 51 5.2 52 5.2 5.2 52 15 52 5.2 5.2 51 52 5.2 52 52 52 16 52 5.2 52 51 52 5.2 5.2 52 5.2 i

l O

2.20

Table 2.2 N_0RTH ANNA SYNOPTIC TEMPERATURE SURVEY JANUARY 16, 1979

! STAT I ON "K" TIME (EST)

DEPTH 0804 0914 1036 1114 1212 1312 1402 1520 1615 sfc 55 55 5.5 55 3.6 5.7 57 57 5.7 IM 55 55 55 5.5 5.6 5.7 5.7 5.7 5.7 2 55 55 5.5 5.5 5.5 57 57 5.7 57 3 55 55 5.5 55 5.5 5.7 57 5<7 5.7 4 55 55 55 5.5 5.5 5.6 57 57 57 5 5.5 5.5 55 5.5 5.5 5.6 5.6 5.7 5.7 6 55 55 55 55 55 5.6 5.6. 57 57 7 5.5 55 5.5 5.5 5.5 5.6 5.6 57 57 i

8 5.5 55 55 5.5 5.5 5.6 5.6 5.7 5.7 9 5.5 5.5 55 55 5.5 5.6 5.6 56 5. 7 10 55 55 55 55 55 55 5.5 5.6 57 11 55 55 55 55 5.5 5.5 5.5 5.6 5.6 12 5.5 55 55 55 55 55 55 56 5.6 13 55 55 55 55 5.5 5.5 55 55 5.6 14 5.5 5.5 55 5.5 5.5 55 5.5 5.5 5.6 O

2.21

Table 2.2 NORTH ANNA SYNOPTIC TEMPERATURE SURVEY i JANUARY 16. 1979 STATION "L" TIME (EST)

DEPTH 0809 0911 1030 till 1215 1309 ,1,4,01 1516 1612 Sfc 5.6 56 5.6 56 5.7 57 5.7 57 5.6 IM 56 5.6 5.6 5.6 57 5.7 57 57 5.6 2 56 5.6 55 5.6 57 5.7 57 57 56 3 5.6 5.6 55 5.S 5.6 57 5.7 5.6 5.6 4 5.6 56 5.5 ', . 5 5.6 5.7 5.7 56 56 5 5.6 56 55 55 5.6 57 57 5.6 56 6 55 5.5 55 55 5.5 5.7 57 5.6 5.6

.. , 7 55 5.5 55 55 5.5 5.6 57 5.6 56

, 8 55 5.5 55 55 5.5 5.6 5.6 5.6 5.6 9 55 55 54 5.4 55 5.5 56 5.6 S.5 10 5.4 53 5.4 5.4 5.4 54 5.5 55 55 11 53 53 5.4 5.4 5.4 5.4 5.5 5.5 55 12 53 53 5.4 5.4 5.4 54 5.4 55 5.5 O

2.22

Table 2.2 NORTH ANNA SYN 01:JIC TEMPERATURE SURVEY JANUARY 16, 1979 i

STATION "M" TIME (EST)

DEPTH 0814 g 1011 1105 1221 1304 _1411 E 1607' Sfc 37 37 37 37 3.8 3.8 3.8 3.8 3.9 IM 37 37 37 3.7 3.8 3.8 38 3.8 39 2 3.7 37 3.7 37 3.7 37 3.8 3.8 39 3 3.7 37 37 3.7 37 '7

. 3.8 3.8 39 4 37 37 37 37 3.7 3.7 3.8 3.8 39 5 3.7 37 3.7 3.7 37 3.7 3.8 38 39 6 37 37 3.7 37 3.7 37 3.8 3.8 39 7 37 37 37 3.7 3.7 3.7 3.8 3.8 39 8 37 37 37 37 37 3.7 3.8 3.8 3.9 9 3.7 37 3.7 37 37 3.7 3.8 3.8 3.9 10 37 3.7 3.8 3.8 37 3.7 3.8 3.8 39 11 37 37 3.8 38 37 37 3.8 3.8 39-12 3.6 3.7 3.8 3.8 37 37 3.8 3.8 39 13 3.6 37 3.8 3.8 3.7 37 3.8 38 3.9 l

O 2.23

Table 2.2

( )' NORTH ANNA SYNOPTIC TEMPERATURE SURVEY JANUARY 16, 1979_

STATION "N" TIME (EST)

DEPTH 0819 0900 1006 1100_ 1226 1300 1416 1500 1601 Sfc 3.3 33 3.4 3.4 3.4 3.4 3.4 3.4 3.4 IM 33 3.3 3.4 3.4 3.4 3.4 3.4 34 3.4 2 34 33 34 3.4 3.4 3.4 3.4 3.4 3.4 3 34 33 3.4 3.4 3.4 3.4 34 3.4 3.4 4 34 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 5 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 34 6 3.4 34 3.4 3.4 3.4 3.4 34 3.4 3.4 7 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4

( 8 35 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4

, 35 3., 3., 3.4 3.u 3.u 34 3.4 3.u 10 36 3.5 3.6 3.5 3.4 3.4 34 34 3.4 11 3.6 3.6 3.7 35 3.4 3.4 3.4 3.4 3.4 12 3.6 3.6 37 3.6 3.4 3.4 3.4 3.4 3.4 i

O 2.24

I

-. Table 2.2 NORTH ANNA SYNOPTIC TEMPERATURE SURVEY

! JANUARY 16, 1979 I

STATION "0" TIME (EST)

DEPTH 0800 g 1005 1105 1219 0

,1,3.01 1420 1500 1619 Sfc 2. 4 1.8 2. 3 2.5 2.6 2.7 2.5 2.8 2.8 l

i 1M 2.5 2.1 2.4 2.6 2.7 29 2.6 2. 7 2.8 2 30 2.4 2.4 2.7 2.7 29 2.6 2.7 2.8 i

3 32 2.7 2.4 2.8 2.7 31 2.6 2.7 2.8 4 3.2 27 2.6 2.9 2.6 3.1 2.6 2.7 2.8 5 31 2.9 2.8 29 27 31 2.6 2.8 2.8 6 33 31 29 3.0 2.8 32 2.7 2.8 2.8 7 33 3.1 31 30 2.9 33 2.7 2.8 29 8 33 3.2 3.1 30 31 3.3 27 29 29 9 3.4 32 32 32 31 3.2 2.7 3.0 29 l

O 2.25

i i

O., 1 31 2.2 NORTH ANNA SYNOPTIC TEMPERATURE SURVEY JANUARY 16. 1979 l

STATION "P" TIME (EST)

DEPTH 0810 03 1015 1116 1208 M 1405 JJ)J., 1612 Sfc 2.4 2.3 25 2.4 2.6 2.6 2.6 2.9 2.8 IM 2.4 2.4 2.5 25 27 2.6 27 2.9 2.8 2 2.5 27 29 2.8 2.7 2.7 29 3.0 29 3 3.0 32 32 3.3 2.3 2.7 29 31 29 t

4 33 33 32 3.4 2.8 2.8 31 3.2 30 5 34 3.4 3.4 3.5 32 3.4 34 35 3.1 6 35 3.4 35 35 3.4 3.5 35 3.5 33 7 3.6 35 3.6 35 3.4 3.6 3.5 3.6 3.5 4

(JI ~8 37 35 3.6 35 3.5 3.6 3.5 3.7 3.5 9 37 35 3.6 3.5 35 3.7 3.6 3.7 3.5 4

10 37 35 3.6 3.6 3.6 3.7 3.6 3.9 35 11 3.6 35 3.7 3.6 3.6 37 3.6 39 3.5 i ,

O 2.26

Os Table 2.2 NORTH ANNA SYt10PTic TEMPERATURE SURVEY JANUARY 16, 1979 STATION "Q" TIME (EST)

DEPTH 0828 0900 1022 1124 20

,1,2,01 ,1,J21 0

,l_4,00 M 1600 Sfc 2.5 25 2.6 2.6 2.5 2.8 2.8 29 29 IM 2.6 25 2.6 2.7 27 2.8 2.8 29, 29 2 27 2.6 2.6 2.7 27 2.8 2.8 29 29 3 2.7 2.6 27 27 27 2.8 2.8 29 30 4 2.8 2.6 27 2.8 2.8 29 29 29 30 5 2.9 27 29 29 29 30 30 30 31

.6 30 2.8 30 3.1 30 30 31 3.1 3.1 7 32 29 30 3.1 32 3.1 32 3.1 32 8 32 31 31 3.2 33 32 32 3.1 33 9 32 32 3.1 3.2 33 3.2 3.4 32 3.3 to 33 33 32 33 3.3 32 3.4 33 33 11 33 33 32 33 33 34 3.4 3.3 34 O

s 2.27

O-,

Table 2.3 i

1 North Anna Synoptic Temperature Survey May 16, 1979 Survey Began - 0800 I

i Survey Completed - 1800 Temperature - Degrees Celsius Instruments: Whitney Model TC-SC and TC-5 Field Thermometers Synoptic Stations A-Q Depth in Meters O

i l

i i

O 2.28

./

Table 2 3 fl0RTH A!!NA SYtt0PTIC TEMPERATURE SURVEY O'N MAY 16, 1979 STATION "A" Tit 1E (EST)

DEPTH 0820 0918 1025 1107 1223 ,1.],2),, 1412 1505 1609 1707 1803 Sfc 20.1 20.1 20.1 20.1 20.1 20.4 20.5 20.8 20.9 20.7 20.8 lH 20.1 20.1 20.1 20.1 20.! 20.3 20.5 20.8 20.7 20.7 20.7 2 20.1 20.1 20.1 20.1 20.0 20.3 20.3 20.6 20.6 20.7 20.6 3 20.1 20.1 20.1 20.1 20.0 20.2 20 3 20.4 20.5 20.6 20.6 4 20.0 20.0 20.0 20.0 20.0 20.1 20.2 20 3 20.5 20.6 20 5 5 19.9 20.0 20.0 19.9 19.9 20.I 20.2 20 3 20.4 20.5 20 5 6 19.8 19.8 19.8 19.8 19.8 20.1 20.2 20.3 20 3 20.4 20.5 7 19.6 19 7 19.7 19.6 19.7 20.0 20.1 20 3 20.3 20.4 20.4 8 19.6 19 5 19.6 19.5 19.6 19.8 19 7 20.2 20.2 20.2 19 9 19 3 19.3 19.4 19 3 19.4 19.6 19 7 19.7 19.7 19.8 19.8 to 18.5 18.5 19.0 18.6 19.1 19.3 19.2 19.5 19.2 19.6 19 7 11 17.8 16 9 17.2 17 3 17.8 18.2 16.4 18.9 18.6 18.5 19.2 12 17.4 14.8 15 1 15.4 16.3 15 9 14.1 17.5 16.3 14.7 15 3 13 4 15.3 13.5 13.6 13.7 14.8 13.5 13.5 17.1 14.2 13 5 13.6 14 13.4 13.3 13 1 13 2 13 2 13 2 14.2 13 3 13.6 13 3 13 3 15 13 2 13.1 13 0 13 1 13 0 13.0 13.0 13 3 13 3 13.1 13.1 16 13.I 12 9 13 0 13.0 12.8 12.8 13 0 13.2 13.I 12.9 12.8 17 13.0 12 7 12.8 12.9 12.7 12.7 12.9 13.0 13 0 12.7 12.7 18 12 9 12.6 12.6 12 7 12.7 12 5 12 7 13.0 13.0 12.6 12 7 19 12.8 12.5 12.5 12.7 12.6 12.5 12.6 13.1 13.1 12.6 12.6 ;

O 2.29 l

l t _

Table 2 3 I

NORTH ANNA SYNOPTIC TEMPERATURE SURVEY MAY 16, 1979 STATION "B" TIME (EST)

DEPTH 0815 0120, 1020 1110 1220 1321 1416 1510 1613 1710 1800 Sfc 19.8 19.8 19 9 20.0 20.1 20.2 20.4 20.6 20.5 20.7 20 7 IM 19.8 19 7 19.9 20.0 20.0 20.2 20.4 20 5 20.5 20.5 20 5 2 19.8 19.7 19.9 19 9 20.0 20.1 20.3 20.2 20.4 20.4 20.5 3 19 8 19 7 19.9 19 9 20.0 20.0 20.2 20.0 20.2 20.2 20.3 4 19.8 19.7 19.8 19.8 19.9 20.0 20.0 20.0 19.9 20.0 20.1 5 19.7 19.6 19 7 19.6 19.8 19.8 19.8 19.7 19.9 19 9 20.0 6 19.7 19.6 19.7 19.6 19.7 19.7 19.7 19.6 19.8 19.8 20.0 7 19 5 19 5 19.6 19.6 19.7 19.7 19.6 19.6 19.7 19 7 19 9 19.4 19 3 19.6 19.6 19.7 19.6 19.6 19.5 19.7 19 7 19.8 I

O l

L l 2.30 e

Table 2 3

(

\

., NORTH ANNA SYNOPTIC TEMPERATURE SURVEY MAY 16, 1979 STATION "C" TIME (EST)

DEPTH 0805 0915 1015 1116 1210- 1317 1422 g 162_0 1717 1822 Sfc 20.1 20.0 20.1 . 20.1 20.3 20.4 20.5 20.6 20.6 20.6 20.6 In 20.1 19.9 20.0 20.1 20.3 20.4' 20.4 20.5 20.6 20.6 20.6 2 20.0 19 9 20.0 20.1 20.3 20.3 20.3 20.4 20.5 20.6 20.6 3 20.0 19.8 20.0 20.0 20 3 20.2 20 3 20.3 20.5 20.5 20.6 4 20.0 19 8 20.0 20.0 20.2 20.2 20.2 20.2 20.4 20.4 20 5 5 20.0 19.8 20.0 20.0 20.2 20.1 20.2 20.2 20.3 20.4 20.4 6 19 5 19.8 19 9 20.0 20.1 20.1 20.1 20.1 20.2 20.2 20.4 7 19 3 19.2 19.9 19 9 20:1 20.1 20.0 20.1 20.2 20.2 20.3 O is.' '8 7 is.8 is 7 2o ' is 9 2o o 's S 2o' 's 7 'S S 9 18.5 18.4 19.1 18.8 18.7 19.0 18.7 19.1 19.4 19 3 19.4 10 17 7 18.0 18.6 18.3 18.2 17.5 17.4 18.6 18.7 17.5 18.0 11 16.6 16.4 17.2 16.0 15 7 15.7 15.8 16.3 16.4 16.8 16.7 12 14.7 14.2 14.7 14.5 14.9 14.5 14.1 14.8 15.4 16.2 15 5 13 13.8 14.0 14.1 13 9 13.7 13 5 13.8 13 7 14.0 14.2 14.3 14 13 3 13.8 13.8 13.5 13 5 13.3 13 3 13 1 13 2 13.6 13.4 15 13.1 13.4 13.2 13.3 13.4 13 2 13.1 13.0 13 1 13.2 13 3 16 13 0 13 2 13 0 13 2 13.3 13.1 13.0 12.9 13 0 13.1 13.1 17 13.0 13 1 13 0 13 1 13 2 13 0 12.5 12.7 12.9 13 0 13 0 18 12.8 13.0 13.0 13 0 13.2 12.9 12.8 12.6 12.6 12.9 12.8 19 12.6 12.8 13.1 12.9 13.1 12 9 12.7 12.6 12.6 12.7 12.8 2.31

l Table 2 3 fl0RTH ANilA SYt10PTIC TEMPERATURE SURVEY HAY 16, 1979_

STATIOft "D" TIME (EST)

DEPTH 0830 M 1005 1103 1230 1310 1425 2

.l.521 1603 1701: 1810 Sfc 19 3 19 3 19 3 19 6 19 6 20.0 20.0 20.2 20.4 20 3 20 3 IM 19 2 19 2 19 2 19 6 19.5 20.0 20.0 20.1 20.3 20.2 20.2 2 19.2 19.1 19.1 19.4 19.4 19.9 19.9 19 9 20.2 20.0 19 9 3 19 2 19 0 18.9 19.2 19.3 19.8 19 6 19 5 19.4 19.4 19 7 4 19.2 18.8 18.8 19.1 19.0 19.5 19.4 19.3 19.2 18.6 18.9 5 19 1 18.8 18.6 18.8 18 7 19 1 19.1 19.1 18.6 18.0 18.4 6 18.5 18.2 18.2 17 9 17.8 18.4 18.2 18.2 18.3 17.7 18.3 7 18.2 17.7 17 3 17.6 17.6 18.0 17 5 18.1 18.2 17 5 18.2 P 17.3 17.1 16.5 17.1 17.3 17.6 17.1 18.0 17.9 17.1 17.7 O 9 16.7 16.4 16 3 16 3 16.8 17.0 16.7 17.2 17 3 16.8 17 3

10 15.8 16.1 16 3 16.1 16.3 16.8 16.6 17.0 17.2 16.4 17.1 l

11 15.6 14.8 15.4 14.9 16.1 16.6 15.8 16.6 15.7 15.1 16.8 12 14.7 13.7 13.8 13 8 13 5 13 9 13 7 16.3 14 3 14.0 14.2 13 13 4 13.6 13.5 13.6 13.4 13.9 13 5 13.6 14.1 13 7 13.6 14 13.4 13 5 13 4 13 5 13.4 13.7 13 5 13 5 13 8 13 7 13 5 15 13.4 13.5 13.4 13 5 13.4 13 7 13.5 13 5 13 7 13.6 13 5 16 13.4 13 5 13 4 13 5 13.4 13.7 13.5 13.5 13.8 13.6 13 5 0

2.32 1

Table 2 3 pds ' NORTH AllNA SYHOPTIC TEMPERATURE SURVEY MAY 16. 1979 STATION "E" TIME (EST)

DEPTH 0810 0910 1010 M _1_215 M 1419 1513 1617 1713 1815 Sfc 19 9 20.0 20.1 20.1 20.2 20.3 20.4 20 5 20.6 20.6 20.6 IM 19 9 20.0 20.0 20.1 20.2 20.2 20.4 20.5 20.6 20.5 20.6 2 19 9 20.0 20.0 20.1 20.2 20.2 20.3 20.4 20.5 20.4 20.5 3 19.9 20.0 20.0 20.1 20.1 20.2 20 3 20.4 20 5 20.4 20.4 4 19.8 20.0 20.0 20.0 20.1 20.1 20.3 20.3 20.4 20.4 20.3 5 19.8 19 9 19 9 20.0 20.1 20.1 20.1 20.1 20.2 20.3 20.3 6 19.6 19.8 19.9 19.9 20.0 19.9 20.0 20.0 20.2 20.1 20.2

! 7 19.6 19 5 19.8 19 5 19 9 19 5 19 7 19.7 19 8 20.0 20.0 pf 19.5 19 3 19.3 19.4 19.6 19.4 19.6 19.6 19 7 19.8 19.7 V

9 19.4 18.9 18.8 18.7 18.7 19 3 19.4 19 5 19.5 19 5 19 6 to 17.8 17.7 17 5 17 7 18.1 18.8 18.2 19.4 19.2 19 3 19 3 11 16.5 16.5 16 5 16.0 16.8 17 2 16.7 17.1 17.5 17.4 17 7 12 15 0 14.6 15.1 15 2 15.0 15.6 15 2 16.1 16.6 16.2 16.4 13 13 7 13 7 13.7 14.I 13.8 14.1 13.8 14 3 14 9 14.1 14.3 14 13.4 13.4 13.4 13.5 13 2 13 6 13.5 13 4 13 5 13 6 13 5 15 13 1 13 1 13.2 13.2 13 1 r3.2 13 2 13 3 13.2 13 3 ' 13 3 16 13.1 13.1 13.1 13.1 13.1 13.2 13.1 13.2 13.1 13.2 13.2 17 13 1 12.9 13.1 12.9 13.1 13.2 13 1 13.2 12.9 13.1 13.2 l

18 13 0 12 9 12.9 12 9 13.1 13.1 13.1 13.3 12.9 13.1 13 3 O

2.33

Table 2 3 fl0RTH ANNA SYt10PTIC TEMPERATURE SURVEY s MAY 16, 1979 STAT I ON "F" TIME (EST)

DEPTH 0828 0900 1028 1108 1235 1310 1421- 1502 1618 1718 g Sfc 19.8 19 9 20.0 20.3 20.2 20.5 20.3 20.7 20.4 20.4 20.4 IM 19.8 19.9 20.0 20.3 20.1 20.5 20.3 20.6 20.4 20.4 20.4 2 19.8 19 9 20.0 20.3 20.I 20 5 20.3 20.5 20.3 20.4 20.3 3 19.8 19 9 19.9 20.2 20.1 20.5 20.1 20.3 20.3 20.3 20 3 4 19 7 19 9 19.9 20.2 20.1

• 20.4 20.0 20.2 20.2 20.2 20.2 5 19.4 19 9 19.8 20.0 20.1 20.4 20.0 20.0 20.1 20.1 20.1 6 19 2 19.4 19.7 19.9 20.0 20.2 19.9 19.7 19.7 19 7 19 7 7 18.8 19.2 19.5 19.4 19.9 19 9 19 5 19.7 19.6 19.5 19 5 8 18.7 18.9 19.1 19.3 19.4 19.6 19 3 19 4 19 2 19 1 19.0 h 18.3 18.6 18.9 19.1 19 1 19.4 19 1 19.1 18.7 18.6 18.6 10 17.5 18.0 18.5 18.6 18.9 19.0 17.7 18.1 18.2 18.3 18.3 11 16.3 16.4 18.1 17.0 18.2 18.3 16.9 17.6 17.8 17.8 18.0 12 14.7 16.4 16.5 15.5 16.6 16.9 15 9 16.1 16.2 16.3 16.4 13 13 9 14.7 14.4 14.5 15.1 15 3 14.9 15.1 14.5 14.3 14.4 14 13.6 13.8 13 9 14.1 14.1 14.4 14.0 14.2 13.7 14.0 13.9 15 13.5 13.7 13.6 14.0 13.7 14.1 13.6 13 9 13.5 13.8 13.6 16 13 2 13.6 13.4 14.0 13 5 14.0 13.5 13.8 13.5 13.4 13.2 I

6 2.34

/

Table 2 3 O fl0RTH ANilA SYHOPTIC TEMPERATURE SURVEY MAY 16, 1979 STATION "G"  !

TlHE (EST)

OEPTH 0822 0908 _1021 1114 1226 1317 1419 1511 1613 1_713 1800 sfc 20.2 20.4 20.5 20.7 20.8 20.8 20.9 21.0 21.0 20.9 20.8 IM 20.2 20.4 20.4 20.7 20 7 20.6 20.8 20.7 20.9 20.8 20.8 2 20.1 20 3 20.4 20.6 20.4 20.5 20.6 20.7 20.6 20.6 20.7 3 19.8 19.9 20.2 20.6 20.3 20.5 20.6 20.6 20.6 20.5 20.6 4 19.8 19.6 20.1 20.5 20.2 20.4 20.4 20.4 20.3 20.4 20.3 5 19 3 19.4 19.6 20.1 19.8 19.9 20.1 20.2 19.6 19.4 19 3 6 19 3 19 3 19.3 19.4 19 2 19.3 19.8 19 3 19.2 19.1 18 9

, 7 19.2 19.1 18.9 18.8 18.9 18.7 19.1 19.0 19.1 18.9 18.7 l

8 19.1 18.5 18.4 18.2 17.8 1d.1 18.2 18 3 18.6 18.5 18.7 O i 7. 7 i7.6 i7.2 >7.8 i7.3 i7.6 i7.2 i7.8 i8.i is.i is.5 10 15 9 16.2 16.2 16.9 16.5 16.8 17.0 17.3 17.8 17.5 18.0 11 15.6 15.7 15.8 15.5 14.7 15.4 16.4 15.9 16.6 16.2 17.6 12 14.7 14.5 14.7 15.2 14.6 14.6 14.3 14 5 14.5 14.5 17.3 13 13.9 13.7 13.7 14.2 14.4 14.0 13 7 13.9 14.1 14.2 15.4 14 13 7 13.4- 13.5 13 7 13.6 13 5 13.4 13.6 13 6 13.4 14.4 4

15 13.5 13 3 13.3 13 5 13 4 13.4 13 4 13.4 13 2 13.2 13 7 16 13.2 13 3 13 2 13.4 13.3 13.4 13 4 13 4 13.2 13.2 13.4 17 13.2 13.2 13.2 13 3 13 3 13.4 13.4 13.4 13.2 13.2 13.2

~:

lO l

2.35 l- ./

l

Table 2 3 NORTH ANilA SYNOPTIC TEMPERATURE SURVEY

. MAY I6, 1979 STATION "H" TIME (EST)

DEPTH 0817_ 0917 1017 1120 1220 1325 141)_ J.il,6, 1606 J201 1806 Sfc 20.8 20.6 20.2 20.2 20.3 20.4 20.9 20.9 20.9 21.0 21.0 IM 20.8 20.6 20.2 20.2 20.2 20.4 20.6 20 9 20.9 21.0 20.9 2 20.8 20.4 20.1 20.2 20.2 20.3 20.5 20.8 20.8 20.8 20.7 3 19.9 19.8 20.1 20.1 20.2 20.2 20.4 20.6 20.5 20.4 20.2 4 19 7 19.6 20.1 20.1 20.0 20.1 20.3 20.4 20.0 20.0 19.8 5 19. 2 19.3 19.5 19.3 20.0 19.8 19 5 19.6 19 7 19.8 19 7 6 19.1 19.1 19.3 18.9 19.4 19.2 19.2 19 2 19 2 19 2 19.3 7 18.9 18.8 18.9 18.1 19 2' 18.8 18.8 18.9 19 0 18.9 18.7 8 18.5 17.7 17.7 17.8 17.7 18.3 18.5 18.4 18.1 18.2 17.8 O~ i7.u i7 3 i7.i ie.9 i6.9 ie.9 i72 >7.u i7.4 ie.8 i7.0 10 16.9 16.9 16.7 16.8 16.6 16.3 16.3 15.6 16.4 16.1 16.5 11 16.1 15 1 15 5 15.1 14.9 14.8 15.1 15.4 15.3 15.6 15.8 12 14.6 14.6 14.4 1.6 14.4 14.1 14.1 14.1 14.8 14.6 14.5 13 13.7 13 7 13 7 14.4 14.3 13.7 13 9 13 7 14.0 14.0 13.6 14 13 5 13.6 13.4 13.5 13 5 13 5 13.8 13.6 13.7 13.6 13.4 15 13.4 13.2 13 3 13.4 13.4 13.4 13.4 13 4 13 5 13 5 13.2 16 13.1 13.1 13.2 13 3 13.3 13.2 13.1 13 3 13.3 13.3 13 2 b

U s

2.36

g Table 2 3 V-* NORTH ANNA SYNOPTIC TEMPERATURE SURVEY MAY 16, 1979 STATION "1" TIME (EST)

DEPTH 0805 0928 0 100J, 1130 1210 1332 1402 1520 1558 6 fj,

,1.,6, 1818 Sfc 20 9 20.7 21.0 21.1 21.6 21 5 21.8 21.7 21.9 21.9 21.8 IM 20.9 20.7 20.9 21.1 21.4 21.4 21.4 21 7 21.8 21.9 21.8 2 20.9 20.7 20.9 20.6 21.3 21.2 21.2 21.6 21.7 21.9 21.7 3 20.6 20.6 20.8 20.6 21.2 20 9 20.7 21.3 21.5 21.9 21 5 4 19.8 19.6 20.1 20 3 20.6 20.6 20.0 20.8 21.1 21.5 21.3 5 19.6 19.3 19 5 19.4 20.0 19.6 19 5 20.2 20.1 21.1 21.3 6 19.5 19 0 19.3 19.1 19.7 19.2 19.2 19.4 19.6 20.0 19.4 7 18.7- 18.7 19.2 19.0 19.5 19 0 18.9 19.0 19 1 19 3 18.9 8 18.6 18.1 18.6 18.2 18.6 18.7 18.5 18.4 18.5 18.9 18.4 9 17.6 17 5 17 5 17.5 18.4 17.8 18.2 17.6 17.8 18.4 17.8 10 16 7 16.1 16.6 16.2 17 5 17.7 17.2 17 1 16.6 17.2 16.9 11 15 0 14 9 15.7 15 9 16.9 16.4 15.1 15.6 15.9 16.5 14.5 12 14.4 14.4 15.4 14.5 15 2 14.3 14.5 14 9 14.7 14.7 13.8 13 14.2 13.9 14.4 14.1 14.6 13.9 14.0 14.4 13.8 14.3 13 4 14 13.7 13 4 13 9 13.9 14.2 13 3 14.0 13.4 13.5 13.7 13.3 15 13 2 13 3 13 6 13.3 14.1 13.3 14.0 13 3 13 5 13.6 13 1 O

2.37

Table 2 3 NORTH ANNA SYi10PTic TEMPERATURE SURVEY MAY 16, 1979 STAT 10t1 "J" TIME (EST)

DEPTH 0811 g 1012 1125 1215 1328 1408_ 1520 1601 1703 1813 Sfc 20.7 20.7 20.9 21.0 21.2 21.2 21.4 21.5 21.6 21.6 21.5 IM 20.7 20.7 20.8 20.9 21.1 21.2 21.4 21.5 21.6 21.6 21.5 2 20.6 20.7 20.8 20.9 21.1 21.1 21 3 21.4 21.5 21.5 21.5 3 20.6 20.6 20.8 20.8 21.0 21.0 21.2 21.3 21.4 21 5 21.4 4 20.4 20.5 20.7 20.8 20.9 20 9 21.1 21.2 21.3 21.4 21.4 5 19.4 19 6 20.1 20.7 20.9 20.8 21.0 21.1 21.0 21 3 21.2 6 19 2 19.1 19.3 19.4 19.8- 19.9 19.6 19.8 19 9 19 9 19 6 7 19 0 18.9 19 2 19.1 19 3 19 2 18.9 18.7 18.8 19 1 19 1 8 18.2 18.4 18.7 18.7 18.6 18.8 18.3 18.1 18.6 18.9 18.1 17.8 17 6 17 7 17.7 17 7 17.8 17.8 17 7 10.2 17.4 17.3 10 16 9 16.9 16.4 16.8 16.9 16.7 16.7 16.2 16.3 15 5 16.5 11 15 3 15 3 15.2 15 4 15 5 15 2 15.4 15.3 15.2 14 9 14 9 12 14.5 14.6 14.5 14.6 14.7 14.1 15 0 14.7 14.8 14.7 14.5 13 13 6 14.4 13 9 13.8 14.2 13.5 14 . 0 13 7 14.4 13 7 13.6 14 13 3 13 6 13 5 13 5 13.9 13.3 13 6 13.6 13.7 13.4 13.5 15 13 0 13.2 13 3 13 2 13.6 13 2 13.5 13.4 13 5 13 2 13.3 1 I

16 12.3 12 9 13 0 12.8 12 9 12.9 13 2 12.9 13 2 12 5 13 3 l

O 2.38

Table 2 3 0 .'

NORTH ANilA SYt10PTIC TEMPERATURE SURVEY MAY 16, 1979 STATION "K" TIME (EST)

DEPTH 0805 0920 1003 _1118 1209 1327 M 1521 1606 1705 1826 Sfc 21.3 21.3 21.3 21.4 21.6 21.7 21.8 21.8 22.0 21.9 21.9 IM 21.2 21.2 21.2 21.4 21.6 21.6 21.7 21.7 21.9 21.8 21 9 2 21.2 21.1 21.1 21.2 21.4 21.2 21.6 21.7 21 7 21.7 21 7 3 20.2 20.2 20 3 20.4 21.1 20.8 21.3 21.5 21.3 21.4 21 5 4 19.7 19.6 19.7 19 2 19.2 19 0 20.6 21.0 20.5 19.4 20.6 5 19.1 18.9 18.8 19 1 19 0 18.7 19.0 19.2 19.1 19.3 19 5 6 18.5 18.3 18.4 18.6 19.0 18.5 18.6 18.7 18.9 18.9 19 1 7 18.1 18.0 18.2 17.8 17.8 17.9 18.1 18.5 18.4 18.0 18.5 8 17 2 17.0 18.2 16 9 16.8 16.6 17 7 18.0 18.0 16.8 17 1

. 15.9 16.2 17.0 16.5 16.4 16.6 16.5 16.6 16.7 15.7 15.7 10 15.7 15.4 16.2 16.1 15.7 15.4 15 5 15.2 15.3 14.5 14.8 11 14.8 14.4 15.2 14.5 14.9 14.1 14.9 14.1 14.3 14.1 14.5 12 14.1 13 4 13 8 13.4 13.8 13 9 14.0 13 6 13.4 13.2 13.8 13 13 6 13.0 13 2 13.4 13 2 12 9 13.8 12.9 13.2 13.0 13 0 14 13 0 12.8 12 9 12.9 13 1 12.8 13.1 12.8 13.0 12.8 12.8 15 12 7 12.7 12.9 12.8 13.1 12.8 13 1 12.8 13.0 12.8 12.8 l

l o.

2.39

1 - - . . . . _ . . . . . . . . .-.-- .. ..

l Table 2 3

~

, N_0RTH AtlNA SYNOPTIC TEMPERA'fURE SURVEY MAY 16, 1979 STATION "L" l TIME (EST) l DEPTH 0810 OR 1012 1113 1214 1324 1411 5 l_512 J61.1 1712 1822 Sfc 21.6 21.6 21.6 21.7 21.9 22.0- 22.1 22.3 22.3 22.2 22.3 in 21.4 21.6 21.5 21.7 21.8 21.9 22.0 22.2 22.3 22.2 22.3 2 21.4 21 5 21 5 21.6 21.8 21.8 21.9 22.0 22.1 22.1 22.2 3 21.2 21 5 21.4 21.5 21.7 21.7 21.7 21.9 22.0 21.8 22.1 l

l 4 20 5 21.2 21.1 21.4 21.6 21 5 21.5 21.0 21.1 20.8 20 9 5 18.1 18.7 19.3 20.5 21.4 19.0 19.8 19.0 19.1 19.0 19.1 6 17 5 17 3 17.5 18.0 18.5 17.6 18.1 17 6 17 7 17.7 17.8 7 17.0 17.0 17 2 17.6 17 2 17.2 17.0 17.3 16.7 17.3 17.0

8. 16.4 16.2 16.8 16.8 16.8 16 5 16.3 16.0 16.1 16.3 16.5 y 15.7 15.5 15.7 15.5 15.7 15.5 15.7 15.4 15.6 15.8 16.1 10 14.5 14.6 14.7 14.8 15.3 14.2 14.2 14.3 14.9 15.2 15.4 11 14.1 13.7 13.6 14 3 14.4 13.6 13.8 13.8 14.5 14.3 14.4 12 13.8 13.6 13 5 13.8 14.4 13 5 13.5 13.7 13.6 13.7 14.0 l

l l

l O

2.40

Table 2 3

'- NORTH A!!HA SYNOPTIC TEMPERATURE SURVEY f1AY 16, 1979 STATION "M" TIME (EST)

DEPTH M 0908 1_020 1106 1222 1315 1419 1510 1624 1720 1815 Sfc 21.9 21 9 22.0 22.1 22.2 22.3 22.5 22 7 22.9 23 0 23 0 IM 21.8 21 9 22.0 22.1 22.2 22.3 22 5 22.7 22.8 22 9 23.0 2 21.7 21.8 21.8 21 9 22.2 22.1 22.4 22.6 22.8 22 7 22.9 3 21.6 21 5 21.7 21.6 21.6 22.0 22.1 22.2 22.0 22.0 22.1 4 20.4 21.0 20.9 19.8 20.4 20.8 20.8 20.8 19.6 19 9 20.8 5 19.2 18.2 19 1 19 0 19 5 19.6 19.3 19 4 18.6 19 3 19 7 6 17.9 17.7 18.6 18.3 18.7 18.4 18.6 18.9 17.8 17.8 18.1 7 17.2 17.2 17.5 16.9 17.8 17 3 17.4 17.4 17 2 16.9 16.9 15.8 15.7 15.7 '15 7 17.4 16.6 17 1 16 3 16.5 16.4 16.3 9 14.8 14.9 15.2 14.9 16.0 14 9 16.3 15 3 15.3 14.6 14.4 10 14.1 14.3 14.3 14.3 15.3 13.6 15.6 14.0 14.6 14.1 13.9 11 13 3 13 1 13 5 13 4 13 6 13.2 13.6 13 3 13.6 13 3 13 5 12 13 1 13 0 13 5 13 3 13 3 13.2 13.2 13 2 13.4 13.1 13.3 13 13.1 13.0 13 3 13.3 13 3 13.2 13.2 13 2 13.4 13 1 13 3 l

l O

2.41

Table 2 3 HORTH ANNA SYNOPTIC TEMPERATURE SURVEY O\ MAY 16, 1979 STATION "N" TIME (EST)

DEPTH 0824 0900 1030 it00 1230 1305 1427. 1503 1630 1726 1805 Sfc 22.2 22.2 22.2 22.4 22.6 22.6 22.7 22.8 23 0 22.9- 22.8 IM 22.2 22.2 22.2 22.4 22.5 22.6 22.6 22.7 23.0 22 9 22.8 2 22.1 22.2 22.2 22.3 22.4 22.3 22.4 22.3 22.6 22.7 22.8 3 22.1 22.1 22.2 22.0 22.1 22.0 22.0 22.0 22.2 22.3 22.6 4 21.6 21 7 22.0 21.1 21.7 21.7 21.4 21.9 22.0 22.2 22.6 5 18.9 18.8 20.2 19.2 19 9 18.8 18 7 18.5 19.1 18.7 18 9 6 18.0 17.8 17.9 18.0 18.0 17.7 18.4 17.5 17.2 17.2 17.8

,i 7 16.8 17 0 17 3 17.0 17.2 16.7 16.8 17.1 16.9 16.8 17 1 8 16.2 16.2 17.0 16.8 15.9 15.8 16.2 15.9 16.4 14.8 16.2 O y 15 3 15.4 14.7 14.9 15.4 14.8 14.4 14.1 14.4 13.7 14.8 10 13 7 14.0 14.2 14.2 13 9 13 5 13.3 13.4 13.6 13 7 14.5 11 13 3 13 3 13 2 13.4 13.2 13 2 13.2 13 3 13.1 13 2 13.7 12 13 2 13 2 13.2 13.4 13 2 13.2 13 2 13 2 13 1 13 2 13.2 0

2.42 l

., Table 2 3 NORTH AllNA SYl10PTIC TEMPERATURE SURVEY MAY 16, 1979 STATION "0" TIME (EST)

DEPTH 0810 g 00 1,000, 1120 1210- 1320 0 1400, 1520 1625 1700 1810 Sfc 22 5 22.5 22.6 22.8 23.0 23.1 23.4 23.5 23.8 23.9 23.7 IM 22.4 22. 4.. 22.5 22.7 22 9 23 0 23 4 ,33 2 23.5 23.8 23.4 2 22 3 22.3 22.3 22.5 22t7 22.8 23.2 22.8 22.9 23.3 22 9

~

3 22.0 22.0 22.l 22.1 22.2 r2.5 22.8 22.6 22.6 22.8 22.6 4 19 9 20.8 21.2 21.4 20 7 2.t . 2 22.1 22.1 22.3 22 5 21.8 5 19.5 19.6 19.6 19 5 19.9 19.4 20.0 20.0 20.0 19 0 18.7 6 17.6 17.4 17.5 17.6 18.1 18.3 18.2 18.2 17.7 17.8 17 2

, 16.3 16.8 16.8 16.9 17.3 17.5 17.4 17.4 17.3 17.6 17 2

. 16.1 16 7, 16.8 16 9 17 3 17 3 17 3 17.3 17.3 17 6 17.2 9 16.1 16.7 16.8 16.9 17.3 17.3 17.3 17.3 17.3 17.5 17.2 0

2.43 4 y. m n , , - - , -=

Q ., Table 2 3 NORTH ANNA SYNOPTIC TEMPERATURE SURVEY MAY 16, 1979, STAT I ON "P" TIME (E3T)

DEPTH 0820 0910 1010 1105 1220 1310 1415 1510 1610 1710 1805 Sfc 23.1 23.1 23.3 23.4 23 7 24.0 24.5 24.5 24.7 24.5 24 5 IM 23 1 23 1 23 3 23 3 23 7 23 8 24.0 24.3 24.3 24.2 24.2 2 22.9 23.0 23 1 23.1 23.4 23.4 22.3 23.7 22.6 22.5 22.9 3 22.4 22.5 22.4 22.3 22.2 21.5 21.0 22.0 21.8 21.6 22.0 4 20.4 20 .4 20.8 20.1 20.1 19.7 20.4 20.1 20.5 20.0 20.1 5 18 9 19 2 19 2 19.2 19.2 19.0 19 2 19 2 19 2 19.1 19.3 6 17.6 17.8 17.7 17.9 18.2 17.9 18.0 18.3 18.5 18.4 18.2 7 16.7 17.0 16.9 17 0 17.0 17.0 17.0 17 2 17.5 16.9 17.0 16.0 16.5 16.2 16.4 16.6 16.3 16.0 16.7 16.4 16.2 16.4 9 15 3 15.7 15.6 15.4 15.7 15.7 15 9 16.3 15.2 15.4 15.3 10 14.9 15.3 15.1 15.1 15.1 15.1 15.2 15 3 15.0 15.3 15.2 11 14.9 15.0 15.0 15.0 15.0 15.0 15.1 15.3 15.0 15.3 15.1 i

t l

O 2.44

Table 2 3 0- "oa'" ^""a sv"oeric reseea^'uae suavev MAY 16, 1979 STATION "Q" TIME (EST)

DEPTH 0830 g,00, 0 1020 1100 1230_ 1300 1425 1500 1600 1715 1800 sfc 23.0 23.1 23.2 23.4 23.7 23.7 24.0 24.3 24.5 24.3 24.4 I IM 23.0 23.1- 23.1 23.3 23.6 23.5 23.8 24.0 24.2 23.9 24.2 2 22.8 22.9 22.9 23.0 22.7 22.9 12 9 23.2 23.4 23 1 23.1 3 22.0 22.1 22.1 22.2 22.3 21.9 2".3 22.9 22.9 22.4 22.5 4 19.9 20.0 19.9' 19 8 20 9 20.8 21.4 21 5 21.4 20 9 20.6 5 18.9 18.8 18.7 18.9 19.5 19.1 19.8 20.0 19.4 18.9 18.6 6 17.7 17 5 17.3 17.4 18.0 18.2 18.2 18.6 17.8 17 5 17 7 7 16.2 16.2 16 3 16.4 16 7 16.9 17.3 17.2 16.5 16.4 16.2 l

15.3 15.5 15.4 15.5 16.1 16.2 16.4 16.2 15.9 15.4 15.5 9 14.9 15.0 15.0 15.0 15 2 15.3 15.3 15 6 15.3 15 0 15.0 10 14.9 15 0 15.0 15.0 15.0 15.0 15.0 15.5 15.1 15.0 15.3 11 14.9 15.0 15.0 15.0 15.0 15.0 15.0 15.5 15.1 15.0 15.3 l

I 2 45 l

l

.__ -= . _ . _ _ . _ _ _ . _ _ . _ _ . _ . _ _ m _ . . . .- .- .. _ _ . . . . ... _ _ . . -

o, 1 l

Table 2.4 1 1

l North Anna Synoptic Temperature Survey .

J August 23, 1979 i

l Survey Began - 0800 Survey Completed - 1800 i

Temperature - Degrees Celsius Instruments: Whitney Models TC-5C and TC-5

Field Thermometers

! Synoptic Stations - A-Q Depth in Meters 4

4 9

f 4

t O

i.

2.46 l

I'

./

Table 2.4

(<" NORTH ANNA SYNOPTIC TEMPERATURE SURVEY _

AUGUST 23, 1979 j

STATION "A"

~

TIME (EST)

DEPTH 0845 0905 1030 1105 1215 1320 1402 1530 1604 1716 1759 Sfc 25.6 25.6 25.6 25.6 25.7 25.8 25.8 26.0 26.1 26.0 26.0 4 1M 25.6 25.6 25.6 25.6 25.6 25.8 25.7 26.0 26.0 26.0 26.0 2 25.5 25.6 25.6  :.5. 6 25.5 25.6 25.6 25.8 25.9 25.9 25.9 3 25.5 25.6 25.5 25. 6 24.4 25.5 25.5 25.7 25.7 25.8 25.8 4 25.4 25.5 25.4 25.3 25.4 25.4

!5. 5 25.6 25.5 25.6 25.6 5 25.3 25.3 25.4 26.5 25.3 25.3 25.3 25.4 25.4 25,5 25.5 6 25.1 25.1 25.2 25.3 25.1 25.2 25.2 25.2 25.1 25.3 25.1 7 24.6 24.9 25.0 25.0 24.9 25.0 25.1 25.1 24.7 25.1 24.8 8 24.1 24.8 25.0 24.9 24.3 24.8 24.8 24.7 24.1 24.6 24.1 23.6 24.2 24.4 24.5 23.7 24.5 24.3 23.8 22.8 23.4 23.5 10 23.0 22.8 23.1 22.3 22.2 22.7 22.2 22.4 22.1 22.2 22.0 11 19.7 19.5 21.3 19.4 19.0 19.8 18.9 18.6 18.9 19.2 19.1 12 17.7 17.7 18.5 17.9 17.1 17.7 16.6 17.0 16.8 17.3 17.4 13 16.5 16.3 16.5 16.6 15.5 16.0 15.5 16.0 16.0 16.1 16.9 14 14.6 15.2 15.4 15.4 15.0 15.1 15.0 15.1 14.8 14.6 15 .8 15 14.1 14.3 14.4 14.5 14.3 14.2 14.1 14.6 14.1 14.2 14.8 16 13.8 14.0 14.0 14.2 13.8 13.8 13.9 13.9 13.8 13.9 14.1 17 13.4 13.6 13.7 13.9 13.5 13. r; 13.4 13.5 13.6 13.6 13.8 18 13.2 13.3 13.4 13.5 13.3 17.3 13.4 13.3 13.6 13.3 13.6 l 19 13.2 13.3 13.1 13.2 13.3 13.1 13.4 13.2 13.1 13.2 13.2 i

l O

2.47

Table 2.4 O'. '

NORTH ANNA SYNOPTIC TEMPERATURE SURVEY AUGUST 23, 1979 STATION "B" TIME (EST)

DEPTH 0850 0900 1035 1100 1221 1325 1358 1535 1601 1721 1755 Sfc 25.6 25.6 25.6 25.7 25.8 26.0 26.0 26.1 26.1 26.1 26.0 1M 25.6 25.6 25.6 25.7 25.7 25.9 25.9 26.1 26.1 26.1 26.0 2 25.6 25.6 25.6 25.7 25.6 25.8 25.9 26.0 26.0 26.0 26.0 3 25.5 25.6 25.5 25.6 25.5 25.8 25.8 26.0 26.0 26.0 25.9 4 25.5 25.5 25.4 25.6 25.4 25.7 25.7 25.9 25.8 25.9 25.8 5 25.4 25.5 25.3 25.5 25.3 25.7 25.4 25.7 25.5 25.7 25.6 6 25.2 25.4 25.1 25.4 25.1 25.2 25.1 25.2 25.3 25.5 25.4 7 25.1 25.2 25.0 25.1 24.9 25.0 25.0 25.1 25.0 25.3 25.1 25.1 24.9 25.0 24.8 24.8 24.8 24.9 24.7 24.8 24.8 25.0

({]}'

O 2.48

y -e Table 2.4

~N . NORTH ANNA SYN 0PTIC TEMPERATURE SURVEY (d

. AUGUST 23, 1979 STATION "Cd TIME (EST)

DEPTH 0809 0920 1000 1120 1200 ,1300, 1420 1515 1604 1700 1817 Sfc 25.1 25.2 25.3 25.4 25.3 25.6 25.6 25.6 25.6 25.7 25.6 1M 25.1 25.2 25.2 25.3 25c2 25.5 25.5 25.5 25.6 25.6 25.5 2 25.1 25.2 25.2 25.2 25.1 25.4 25.3 25.5 25.5 25.5 25.5 3 25.1 25.1 25.2 25.2 25.0 25.2 25.1 25.4 25.4 25.4 25.3

~

4 25.0 25.1 25.1 25.1 25.0 25.1 25.1 25.3 25.3 25.1 25.1 5 25.0 25.1 25.1 25.1 25.0 25.0 25.0 25.1 25.1 25.1 25.0 6 25.0 25.1 25.1 25.1 24.9 25.0 25.0 25.1 25.0 25.1 25.0 7 25.0 25.1 24.9 25.0 24.8 25.0 25.0 25.0 24.7 24.9 24.9 8 24.9 25.0 24.5 24.8 24.6 24.9 '24.7 24.6 24.5 24.8 24.5 24.4 24.7 24.4 24.4 24.2 24.8 24.2 24.1 24.1 24.5 24.1 10 23.5 24.2 22.6 23.1 23.2 23.2 23.5 23.2 23.2 24.3 23.6 11 21.3 19.7 19.8 21.5 20.3 20.6 21.0 20.0 19.4 21.8 20.6 12 18.2 18.0 17.0 18.4 17.9 18.1 17.0 17.7 18.2 18.6 18.5 13 16.6 16.5 16.0 16.9 16.6 16.1 16.9 16.6 16.5 16.8 15.5 14 15.1 15.3 15.2 15.6 15.8 15.3 15.2 15.2 14.8 15.4 15.0 15 14.2 14.3 14.4 14.4 14.7 14.6 14.3 14.3 14.0 14.2 14.1 16 13.9 13.9 13.7 13.8 14.0 14.3 13.9 13,9 13.8 13.9 14.0 17 13.3 13.6 13.4 13.6 13.7 13.9 13.5 13.5 13.7 13.6 13.6 18 13.0 13.3 13.2 13.2 13.2 13.8 13.3 13.2 13.2 13.3 13.3 19 13.0 13.3 13.0 13.0 13.1 13.2 13.3 13.1 13.0 13.2 13.2 l

l i

2.49 1

o

Table 2.4

() - NORTH ANNA SYNOPTIC TEMPERATURE SURVEY AUGUST 23, 1979 STATION "D" TIME (EST)

DEPTH 0832 0910 ]Oj!l j 1110 1211 1315 1411 1525 1614 1711 1805 Sfc 25.5 25.6 25.7 25.7 25.8 25.7 25.9 25.9 26.0 26.2 26.1 1M 25.5 25.6 25.6 25.7 25.7 25.5 25.9 25.9 25.9 26.1 26.0 2 25.5 25.6 25.5 25.7 25.7 25.2 25.7 25.7 25.6 26.0 25.7 3 25.4 25.5 25.3 25.6 25.6 25.1 25.6 25.3 25.2 25.7 25.2 4 25.3 25.4 25.2 25.4 25.5 25.0 25.3 25.1 25.0 25.1 25.1 5 25.2 25.1 25.2 24.9 24.9 24.7 24.9 25.0 25.0 25.0 25.0 6 24.8 24.8 25.0 24.6 24.7 24.5 24.6 24.8 24.8 24.6 24.8 7 23.8 24.6 24.7 24.5 24.5 24.2 24.3 24.6 24.6 24.4 24.5 8 23.4 24.4 24.1 24.5 23.8 23.5 23.6 23.8 24.1 23.4 23.6 O> 23.0 23.0 23.3 22.6 23.3 21.5 23.2 23.2 21.2 21.7 20.7 10 21.1 21.3 21.1 20.5 21.0 19.5 20.4 21.2 20.3 20.6 20.3 11 19.2 18.7 18.8 18.9 18.7 18.3 18.5 18.4 18.6 18 .7 18.7 12 16.8 17.5 17.1 17.7 17.3 18.1 17.0 17.3 16.8 18.5 17.4 13 15.9 16.9 16.5 16.6 15.6 17.2 15.9 16.6 16.3 17.2 16.3 l

14 14.9 15.6 15.1 15.7 15.2 15.1 15.1 16.0 15.1 15.8 15.5 15 14.7 14.9 14.6 15.0 14.6 14.4 14.6 15.6 14.4 15.0 15.1 16 14.6 14.6 14.5 14.9 14.4 14.4 14.5 15.2 14.2 14.6 14.5 2.50

./

Table 2.4 Qs NORTH ANNA SYNOPTIC TEMPERATURE SURVEY AUGUST 23. 1979 STATION "E" TIME (EST)

DEPTH 0828 0915 1014 1115 1208 1310 1419 1520 1620 1707 1812 Sfc 25.5 25.6 25.5 25.6 25.5 25.7 25.7 25.7 25.7 25.7 25.7 1M 25.5 25.6 25.5 25.5 25.5 25.6 25.7 25.7 25.7 25.7 25.7 2 25.5 25.5 25.4 25.5 25.5 25.5 25.6 25.6 25.7 25.7 25.6 3 25.4 25.5 25.4 25.5 25.4 25.5 25.5 25.6 25.6 25.6 25.6 4 25.4 25.5 25.4 25.5 25.4 25.5 25.4 25.6 25.6 25.6 25.5 5 25.4 25.4 25.3 25.4' 25.4 25.4 25.3 25.5 25.6 25.5 25.5 6 25.3 25.4 25.2 25.3 25.2 25.2 25.3 25.5 25.5 25.3 25.3 7 25.2 25.2 25.1 25.1 25.1 25.0 25.1 25.4 25.2 25.1 24.8 8 25.0 25.0 24.9 24.9 24.8 24.7 24.7 25.1 24.9 24.8 24.1 24.6 24.5 24.8 24.3 24.5 24.4 24.5 24.6 24.6 24.4 22.7 10 23.4 22.6 23.5 22.2 22.2 22.9 21.5 24.4 22.2 23.1 21.4 11 19.6 19.7 18.7 19.8 19.6 19.2 19.2 19.1 19.0 19.4 18.9 12 17.8 17.9 17.3 17.6 17.6 17.5 17.1 17.3 17.4 17.3 17.1 13 16.6 16.6 16.2 16.7 16.5 16.0 15.5 16.5 16.6 16.2 16.5 14 15.4 15.5 15.2 16.0 15.1 15.3 15.2 15.9 16.2 14.9 '5.3 i

15 14.6 14.5 14.7 14.6 14.3 14.7 14.3 15.3 15.6 14.4 14.7 16 14.2 14.2 14.1 14.1 13.8 14.0 14.3 14.7 14.1 14.2 14.1 17 14.1 14.2 14.0 13.7 13.6 14.0 14.1 14.1 14.0 14.0 13.9 18 14.0 14.0 14.0 13.7 13.6 13.9 13.9 14.1 14.0 13.6 13.8 l

O 2.51

Table 0.4 NORTH ANNA SYNOPTIC TEMPERATURE SURVEY s ) ~' AUGUST 23, 1979 STATION "F" TIME (EST)

DEPTH 0831 0903 1032 1100 1222 1300 1420 1503 1621 1700 1755 Sfc 25.4 25.3 25.5 25.5 25.6 25.7 25.6 25.6 25.6 25.6 25.6 1M 25.4 25.3 25.4 25.5 25.5 25.6 25.6 25.6 25.5 25.6 25.6 2 25.3 25.3 25.4 25.4 25.4 25.6 25.5 25.5 25.5 25.6 25.6 3 25.3 25.3 25.3 25.3 25.4 25.5 25.4 25.4 25.5 25.5 25.6 4 25.3 25.3 25.2 25.2 25.3 25.4 25.4 25.3 25.5 25.5 25.5 5 25.2 25.2 25.2 25.2 25.3 25.3 25.3 25.3 25.4 25.4 25.5 6 25.2 25.1 25.1 25.2 25.3 25.3 25.3 25.2 25.3 25.4 25.3 7 25.1 25.1 25.0 25.1 25.3 25.3 25.2 25.2 25.2 25.2 25.1 8 25.1 25.0 24.9 24.9 25.2 25.2 25.1 25.0 25.0 24.8 24.9

()f 24.9 24.8 24.5 24.8 24.8 25.0 24.9 24.7 24.6 24.2 24.6 10 24.7 24.0 23.0 23.7 23.9 23.9 23.8 23.6 23.7 23.5 24.0 11 19.9 19.8 20.7 21.1 21.7 21.8 21.9 20.6 21.3 21.2 21.8 12 18.3 17.9 18.9 18.6 17.2 17.7 17.8 18.0 17.7 17.3 17.5 13 16.9 16.4 16.9 16.8 16.6 16.6 16.7 16.4 16.6 16.5 16.6 14 15.4 15.3 15.8 15.5 15.9 15.4 15.0 15.2 15.0 15.1 15.7 15 14.7 14.9 14.5 14.6 14.7 14.4 14.4 14.5 14.5 14.6 14.7 16 14.5 14.6 14.3 14.4 14.4 14.3 14.3 14.3 14.4 14.5 14.5

(

o G

2.52

Tab?.e 2.4 NORTH ANNA 7.'NOPTIC TEMPERATURE SURVEY O__ AUGUST 23, 1979 STATION "G" TIME (EST) 4 DEPTH 0824 0908 1026 1105 1218 1305 1411 1509 1615 1705 1800 Sfc 25.4 25.4 25.5 25.6 25.6 25.7 25.7 25.7 25.7 25.7 25.7 1M 25.4 25.4 25.5 25.5 25.6 25.7 25.7 25.6 25.6 25.7 25.7 2 25.4 25.4 25.4 25.5 25.5 25.6 25.6 25.6 25.6 25.6 25.6 3 25.4 25.4 25.3 25.4 25.4 25.5 25.5 25.6 25.6 25.6 25.6 4 25.3 25.4 25.3 25.3 25.3 25.3 25.4 25.6 25.5 25.5 25.6 5 25.2 25.3 25.2 25.2 25.2 25.2 25.2 25.4 25.3 25.4 25.4 6 25.0 25.1 25.1 25.1 25.1 25.1 25.0 25.3 25.1 25.1 25.2 7 2,4.9 24.9 24.9 24.9 24.9 24.9 25.0 25.1 24.9 24.9 25.1 24.8 24.7 24.7 24.7 24.8 24.7 24.7 24.7 24.7 24.7 24.8 9 24.5 24.5 24.4 24.4 24.5 24.5 24.5 24.4 24.4 24.5 24.7 10 23.3 23.4 23.5 23.1 23.3 23.9 23.8 24.1 23.8 24.1 24.5 11 20.8 20.7 20.5 20.6 21.6 21.'9 22.1 22.7 22.3 22.6 23.7 12 18.6 18.4 18.2 18.4 19.1 19.5 18.7 18.2 18.7 19.5 19.4 13 16.6 16.7 16.9 16.7 16.3 17.2 17.0 17.4 16.7 17.1 17.1 14 16.0 15.6 15.5 15.4 15.4 16.1 15.9 15.9 15.9 16.1 15.7 15 14.7 14.4 14.6 14.6 14.6 14.7 14.5 14.7 15.1 14.9 14.5 16 14.1 14.1 14.1 14.1 14.2 14.1 14.1 14.2 14.3 14.2 14.2 17 14.0 14.0 14.1 14.0 14.1 14.0 14.1 14.2 14.1 14.1 14.2 l

l

! ')

\_/

l j

2.53

Table 2.4 O NORTH ANNA SYNOPTIC TEMPERATURE SURVEY AUGUST 23, 1979 STATION "H" l TIME (EST)

DEPTH 0819 0911 1021 1108 1213 1308 1408 1513 1612 1708 1806 Sfc 25.4 25.4 25.4 25.4 25.5 25.6 25.7 25.6 25.7 25.7 25.6 1M 25.4 25.4 25.4 25.4 25.4 25.6 25.6 25.6 25.7 25.7 25.6 2 25.4 25.4 25.4 25.4 25.4 25.4 25.6 25.6 25.6 25.7 25.6 l 3 25.4 25.4 25.4 25.4 25.4 25.4 25.5 25.5 25.6 25.7 25.6 4 25.3 25.4 25.3 25.3 25.3 25.4 25.5 25.5 25.6 25.6 25.6 5 25.3 25.3 25.3 25.3 25.2 25.2 25.3 25.4 25.5 25.5 25.6 6 25.1 25.1 25.2 25.1 25.1 24.8 25.2 25.0 25.4 25.3 25.5 1

! 7 24.9 24.9 25.0 24.9 24.8 24.7 24.9 24.9 25.0 25.1 25.3 ,

i 8 24.7 24.7 24.7 24.7 24.5 24.5 24.7 24.7 24.8 24.8 24.8

() 24.5 24.5 24.6 24.6 24.4 23.5 24.6 24.5 24.6 24.4 24.4 10 24.2 23.9 24.1 23.7 23.9 21.8 23.8 24.0 24.1 23.5 23.4 11 21.8 20.9 21.5 21.2 21.6 21.8 22.5 20.6 22.3 21.8 22.1 12 18.0 18.5 18.4 18.5 18.8 18.6 18.8 18.5 19.5 19.0 18.7 13 16.9 17.2 16.8 16.9 17.5 17.8 17.5 16.8 17.1 17.1 16.9 14 15.7 15.9 15.6 15.3 15.5 15.6 14.9 15.9 15.8 15.7 15.6 15 14.6 14.8 14.6 14.7 14.6 14.7 14.6 14.5 14.5 14.6 14.7 l

16 14.4 14.6 14.4 14.4 14.4 14.4 14.4 14.3 14.3 14.2 14.1 l

1 l

J 2.54

Table 2 A I NORTH ANNA SYN 0PTIC TEMPERATURE SURVEY AUGUST 23, 1979 STATION "I" TIME (EST)

DEPTH 0810 0919 1012 1117 1208 1320 1401 1524 1604 1715 1817 Sfc 25.1 25.2 25.2 25.3 25.4 25.6 25.6 25.6 25.6 25.6 25.6 1M 25.1 25.2 25.2 25.3 25.4 25.6 25.6 - 25.6 25.6 25.6 25.6 2 25.1 25.2 25.2 25.3 25.3 25.3 25.4 25.5 25.6 25.6 25.6 3 25.1 25.1 25.2 25.2 25.2 25.3 25.3 25.3 25.5 25.5 25.5 4 25.1 25.1 25.1 25.1 25.1 25.2 25.2 25.2 25.3 25.4 25.4 5 25.1 25.1 25.1 25.1 25.1 25.2 25.1 25.1 25.2 25.2 25.2 6 25.0 25.0 25.0 25.0 24.9 25.1 24.9 24.7 25.0 25.1 24.8 7 24.7 24.7 24.7 24.8 24.6 25.0 24.8 24.6 24.7 24.7 24.6 i 8 24.6 24.6 24.6 24.6 24.4 24.7 24.7 24.4 24.5 24.5 24.4 24.4 24.4 24.4 24.2 24.1 24.5 24.3 24.1 24.3 24.2 24.4 10 23.5 23.6 23.8 23.7 22.5 24.1 23.8 23.3 23.1 23.3 24.1 11 20.8 21.4 21.3 21.1 20.4 21.9 21.9 21.4 21.0 20.5 23.2 12 19.1 19.3 19.3 19.0 19.1 20.4 19.8 18.6 19.0 18.2 20.3 13 17.5 17.2 17.7 17.4 16.4 17.5 17.4 16.9 16.5 17.0 19.3 14 16.1 15.7 16.5 15.3 15.6 15.7 15.7 15.7 15.7 15.9 17.1 15 15.2 14.9 15.2 14.9 14.9 15.0 14.7 14.8 14.8 14.8 15.5 i

l O

2.55

Table 2.4

. NORTH ANNA SYNOPTIC TEMPERATURE SURVEY AUGUST 23, 1979 STATION "J" TIME (EST)

OEPTH 0815 0915 1015 1112 1210 1315 1404 1520 1608 1712 1810 Sfc 25.1 25.1 25.1 25.1 25.1 25.5 25.5 25.4 25.4 25.5 25.5 1M 25.1 25.0 25.1 25.1 25.1 25.4 25.3 25.4 25.4 25.4 25.5 2 25.1 25.0 25.0 25.1 25.0 25.1 25.2 25.3 25.3 25.3 25.5 3 25.0 25.0 25.0 25.0 24.9 25.1 25.1 25.3 25.1 25.1 25.4 4 25.0 25.0 24.9 25.0 24.9 25.0 25.0 25.0 25.0 25.0 25.1 5 24.9 24.9 24.9 24.9 24.8 24.9 24.9 24.9 24.8 24.9 24.9 6 24.8 24.8 24.9 24.9 24.7 24.9 24.9 24.7 24.7 24.7 24.7 l 7 24.7 24.7 24.7 24.7 24.5 24.8 24.7 24.7 24.6 24.6 24.6 P 24.6 24.6 24.5 24.5 24.4 24.6 24.5 24.6 24.5 24.5 24:3 0 9 24.4 24.4 24.3 24.4 23.9 24.4 24.1 24.0 24.2 24.0 24.0 10 24.0 23.7 23.7 23.8 22.6 23.9 23.3 23.5 23.0 23.2 23.5 11 22.2 22.2 21.9 22.5 20.8 22.7 21.8 22.1 21.1 22.3 22.3 12 19.3 19.1 18.8 19.2 18.5 19.4 18.7 19.5 18.4 19.4 19.6 13 17.1 17.4 17.3 17.9 16.4 17.3 16.9 16.8 17.0 17.4 17.6 14 15.8 16.0 15.6 15.4 15.4 14.8 15.4 16.4 15.8 15.7 15.6 15 15.0 14.9 14.6 14.7 14.7 14.8 14.6 14.6 14.6 14.5 14.7 16 14.3 14.4 14.1 14.1 14.4 14.1 14.1 14.3 14.2 14.0 14.2 l

l i

l CE) 2.56

Table 2.4

( ])

• NORTH ANNA SYNOPTIC TEMPERATURE SURVEY AUGUST 23, 1979 STATION "K" TIME (EST)

DEPTH 0755 0922 1012 1130 1205 1320 1400 1524 1618 1704 1753 Sfc 25.0 25.0 25.1 25.1 25.3 25.3 25.5 25.4 25.3 25.5 25.4 IM 25.0 24.9 25.0 25.0 25.1 25.2 25.5 25.4 25.3 25.4 25.4 2 25.0 24.9 25.0 25.0 25.1 25.1 25.2 25.4 25.3 25.4 25.4 3 25.0 24.9 25.0 25.0 25.0 25.1 25.1 25.4 25.3 25.4 25.4 4 25.0 24.9 25.0 25.0 24.9 25.1 25.1 25.3 25.3 25.4 25.4 5 25.0 24.9 25.0 25.0 24.9 25.0 25.1 25.3 25.3 25.4 25.4 6 24.9 24.8 24.9 24.9 24.8 25.0 25.0 25.2 25.3 25.4 25.4 7 24.8 24.7 24.9 24.8 24.7 24.8 24.8 25.2 25.2 25.4 25.4

~~

24.6 O. 9 24.4 24.5 24.4 24.8 24.6 24.7 24.4 24.4 24.2 24.6 24.5 24.6 24.3 25.1 24.9 25.4 25.3 24.8 24.6 24.6 24.5 10 23.8 22.8 24.4 24.0 23.6 24.0 23.1 24.6 24.3 24.3 24.3 11 20.3 22.1 23.2 22.8 21.8 22.4 21.4 24.2 23.7 23.4 23.8 12 19.9 19.2 20.9 19.3 18.7 19.9 19.4 23.2 22.5 20.1 21.4 13 17.6 17.4 18.3 18.3 17.6 18.5 18.0 19.4 19.9 18.7 19.1 14 16.4 16.5 16.7 16.7 16.7 17.3 17.4 17.5 18.1 17.5 17.8 i

l l

l l

~

O 2.57

Table 2.4 s NORTH ANNA SYNOPTIC TEMPERATURE SURVEY l '

AUGUST 23, 1979 STATION "L" TIME (EST)

DEPTH 0800 0918 1018 1144 1210 1314 1409 1515 1612 1708 1800 Sfc 24.8 24.8 24.8 24.9 24.9 25.3 25.2 25.2 25.1 25.2 25.2 1M 24.8 24.8 24.8 24.8 24.8 25.0 25.0 25.2 25.0 25.2 25.1 2 24.7 24.7 24.8 24.8 24.8 24.9 24.9 25.1 24.9 25.1 25.1 3 24.7 24.7 24.8 24.8 24.8 24.9- 24.8 24.9 - 24.9 25.1 25.1 4 24.7 24.7 24.8 24.8 24.8 24.9 24.8 24.8 24.8 24.9 25.1 5 24.7 24.7 24.8 24.8 24.8 24.8 24.7 24.7 24.7 24.8 24.8 6 24.7 24.6 24.8 24.7 24.7 24.7 24.6 24.7 24.7 24.8 24.7 7 24.5 24.5 24.7 24.6 24.6 24.6 24.5 24.6 24.6 24.7 24.6

,8 24.4 24.4 24.5 24.5 24.5 24.4 24.4 24.6 24.4 24.6 24.4 24.3 24.3 24.4 24.3 24.2 24.3 24.2 24.4 24.2 24.4 24.1 10 23.7 23.9 24.1 24.0 23.8 24.1 23.6 23.1 23.8 24.0 23.6 11 22.6 22.7 23.0 23.0 22.5 22.0 21.9 21.9 23.3 23.5 22.2 12 19.7 19.6 20.2 20.2 19.3 19.6 19.0 19.4 22.4 19.9 19.3 i

, O 2.58

Table 2.4 f) , NORTH ANNA SYNOPTIC TEMPERATURE SURVEY U

AUGUST 23. 1979 STATION "M" TIME (EST)

DEMH- 0808 0858 1025 1105 > '1218 1305 1418 1506 1550 1718

• Sfc 25.1 25.1 25.1 25.1 25.5 25.7 25.7 25.8 25.6 25.8 1M 25.1 25.1 25.1 25.1 25.3 25.2 25.4 25.6 25.5 25.8 2 25.1 25.1 25.1 25.1 25.1 25.1 25.2 25,6 25.5 25.5 3 25.1 25.1 25.0 25.1 25.0 25.1 25.0 25.5 25.3 25.4 4 24.9 24.9 25.0 24.9 24.9 25.1 24.9 25.2 25.0 25.2 5 24.7 24.8 24.6 24.7 24.7 24.9 24.6 25.1 24.6 24.8 6 24.5 24.6 24.5 24.5 24.6 24.6 24.5 24.6 24.5 24.6 7 24.4 24.5 24.5 24.5 24.4 24.5 24.5 24.5 24.4 24.5 O~'8 24 3 24 4 24 4 24.3 24.3 24.s 24.4 24.s 24.3 24 5 9 24.2 24.2 24.3 24.2 24.2 24.3 24.2 24.4 24.1 24.3 10 24.1 24.2 24.1 23.9 24.0 23.9 23.7 24.3 23.9 24.0 11 21.9- 24.1 22.5 22.3 22.5 21.3 21.8 24.0 22.2 23.5 12 19.5 19.7 19.3 19.7 19.9 19.7 19.4 20.9 19.7 20.2 i

i

• No 1800 sample due to heavy shower.

l O

2.59

._ -- . -. ._ .- . . -. - ...... - - ~

i Table 2.4 NORTH ANNA SYNOPTIC TEMPERATURE SURVEY

({]) - AUGUST 23, 1979 STATION "N" TIME (EST)

DEPTH 0818 0907 10*J9 12{4 1256 1425 1458 1600 1038_ _

_l]7330 '

• Sfc 25.0 24.9 25.0 25.1 25.4 25.4 25.4 25.4 25.3 25.3 1M 25.0 24.9 25.0 25.1 25.2 25.2 25.3 25.4 25.3 25.3 2 25.0 24.9 25.0 25.0 25.0 25.1 25.2 25.3 25.2 25.3 3 24.9 24.9 24.9 24.9 24.9 25.1 25.1 25.2 25.2 25.2 4 24.8 24.8 24.8 24.9 24.9 25.0 25.0 25.1 25.0 25.1 5 24.7 24.7 24.7 24.7 24.7 25.0 24.8 24.8 24.5 24.8 j 6 24.6 24.6 24.7 24.7 24.5 24.7 24.7 24.7 24.5 24.6 7 24.4 24.5 24.6 24.6 24.4 24.5 24.5 24.6 24.4 24.4

.8 s

24.2 24.4 24.4 24.4 24.2 24.4 24.2 24.3 24.2 24.1 9 23.9 24.2 24.2 24.1 24.0 24.3 24.1 24.2 24.0 24.0 10 23.5 23.7 24.0 23.7 23.9 24.1 24.0 24.1 23.8 23.8 11 22.4 23.3 23.5 22.8 23.2 23.9 23.6 23.9 23.4 23.3 12 22.3 22.9 21.5 22.1 22.2 22.8 21.6 21.4 22.2 21.8

• No 1800 sample due to heavy shower.

I 1

O s

2.60

Table 2.l+

O' ,

NORTH ANNA SYNOPTIC TEMPERATURE SURVEY AUGUST 23, 1979 .

STATION "0" TIME (EST)

DEPTH 0800 0920 1002 1100 1216 1300 1416 1500 1600 1718 1800 Sfc 25.1 25.3 25.2 25.3 25.6 25.6 25.8 25.6 25.7 26.2 25.6 1M 25.1 25.3 25.2 25.2 25.3 25.3 25.5 25.4 25.4 25.5 25.5 2 24.9 24.9 25.2 25.0 25.3 25.2 25.3 25.3 25.3 25.4 25.3 3 24.8 24.7 24.9 24.7 24.9 24.7 24.8 24.8 24.8 24,9 25.1 4 24.7 24.5 24.5 24.6 24.5 24.5 24.7 24.7 24.6 24.7 24.6 5 24.3 24.3 24.2 24.1 24.4 24.2 24.4 24.3 24.2 24.3 24.4 6 24.0 24.1 23.9 23.7 23.8 23.6 23.8 23.6 23.5 23.8 24.1 7 23.3 23.4 23.5 23.5 23.5 23.5 23.5 23.5 23.5 23.6 23.5 R 23.2 23.3 23.4 23.4 23.4 23.4 23.5 23.4 23.5 23.6 23.4 O 23.2 23.3 23.3 23.4 23.4 23.4 23.5 23.4 23.4 23.6 23.4 l

l 2.61 l

Table 2.4

(])' NORTH ANNA SYNOPTIC TEMPERATURE SURVEY AUGUST 23, 1979 STATION "P" TIME (EST)

DE,PTH 0800 0905 1000 1100 1205 1300 1405 _1500 1600 1707 1758 Sfc 25.2 25.2 25.3 25.2 25.4 25.4 26.0 26.0 25.9 25.9 26.0 1M 25.1 25.0 25.2 25.1 25.4 25.3 25.7 25.8 25.8 25.9 25.7 2 24.9 24.9 24.9 24.9 25.3 ,

25.2 25.4 25.4 25.4 25.8 25.5 3 24.8 24.9 24.8 24.7 25.3 24.9 25.3 25.3 25.3 25.6 25.3 4 24.6 24.8 24.6 24.6 24.8 24.6 24.6 24.7 24.9 25.4 25.2 5 24.1 24.4 24.4 24.4 24.5 24.4 24.4 24.5 24.7 25.0 24.6 6 24.0 24.1 24.2 24.1 24.2 24.0 24.4 24.4 24.5 24.0 24.3 l 7 23.7 23.7 23.8 23.7 23.8 23.8 24.0 23.9 23.9 23.9 24.0 t

8 23.5 23.6 23.6 23.6 23.7 23.7 23.8 23.7 23.7 23.9 23.8 O.(, 23.5 23.6 23.6 23.6 23.7 23.7 23.7 23.7 23.7 23.8 23.8 10 23.5 23.6 23.6 23.6 23.7 23.7 23.7 23.7 23.7 23.8 23.8 11 23.5 23.6 23.6 23.5 23.7 23.7 23.7 23.7 23.7 23.8 23.8

/T-V 2.62

Table 2.4 O' noata ^""^ svuoarte reMaca^ruae suavev AUGUST 23. 1979 STATION "Q" TIME (EST)

DEPTH 0800 0900 1000 1100 1200 1300 1359 1500 1600 1G59 1804 Sfc 24.8 24.6 24.7 24.7 24.9 24.9 25.4 .25.4 25.4 25.5 25.5 1M 24.8 24.6 24.7 24.7 24.8 24.8 25.4 25.4 25.4 25.5 25.5 2 24.7 24.6 24.6 24.7 24.8 24.8 25.3 25.3 25.3 25.4 25.5 3 24.7 24.5 24.6 24.6 24.7 '24.7 24.9 24.9 24.9 25.4 25.3 4 24.3 24.5 24.3 24.4 24.5 24.5 24.7 24.7 24.7 25.4 25.3 5 24.0 24.2 24.1 24.2 24.4 24.1 24.5 24.4 24.5 24.9 24.6 6 21.7 24.2 23.8 24.0 24.4 23.9 24.3 24.1 24.4 24.6 24.5 7 23.6 23.8 23.6 23.6 24.0 23.8 24.3 24.0 24.2 24.5 24.3 AL 23.4 23.8 23.5 23.6 23.6 23.6 23.7 23.6 23.7 23.9 24.0

..- 23.4 23.6 23.4 23.5 23.6 23.5 23.6 23.6 23.6 23.7 23.8 10 23.4 23.4 23.4 23.5 23.6 23.5 23.6 23.6 23.6 23.7 23.8 11 23.4 23.4 23.4 23.5 23.6 23.5 23.6 23.6 23.6 23.7 23.8 l

l l

v l 2.63 l

! 1

! - 1 e  ;

__ . . ____ [ . _ _ - . . . . _ _.. . . .

Os Table 2.5 i

1 I

i.

l North Anna Synoptic Temperature Survey November 20, 1979 i

Survey Began - 0800 Survey Completed - 1600 Temperature - Degrees Celsius

! Instruments - Whitney Models TC-5C and TC-5 i

Fleid Thermometers I

! Synoptic Stations A-q .

Depth in Meters

_j; i

t f

f i

)

I i

i i

L 2.64 l

.-- - , . _ ZE '. , . _ . . . . . _ . , . . _ , ,-.e...__-. .

Tablo 2 5 NORTH AliHA SYNOPTIC TEMPERATURE SURVEY NUVLNtShn ZU, 6 9 / y_

O- $ ratio" "^"

TIME (EST)

DEPTH 0827 Qll 1014_ 1054 1230 1305 1402 1530 1600 Sfc 12.3 12.4 12.5 12.9 12.9 12.9 13 5 14.5 14.2 IM 12.3 12.3 12 5 12.6 12.6 12.5 12.7 12.6 12.7 2 12.3 12.3 12 3 12.3 12.4 12.3 12.4 12 3 12.4 3 12.3 12.3 12.3 12.3 12 3 12.3 12.3 12.3 12 3 4 12.3 12.3 12.3 12.3 12 3 12.3 12.3 12.3 12.3 5 12 3 12.3 12.2 12.3 12.3 12.3 12.3 12.3 12 3 6 12.3 12 3 12.2 12.3 12 3 ~2.3 12.3 12.3 12 3 7 12.2 12.2 12.2 12.3 12.3 12.3 12.3 12.3 12.3 t

8 12.2 12.2 12.2 12.3 12.2 12.3 12.2 12 3 12.3 9 12.2 12.2 12.2 12.2 12.2 12.2 12.2 12.2 12.3 O- 10 12.2 12.2 12.2 12.2 12.2 12.2 12.2 12.2 12.3 11 12.2 12.2 12.1 12.2 12.2 12.2 12.2 12.2 12.2 12 12.2 12.1 12.1 12.2 12.2 12.2 12.2 12.2 12.2 13 12.1 12.1 12.1 12.2 12.1 12.2 12.2 12.2 12.2 14 12.1 12.1 12.1 12.2 12.1 12.1 12.1 12.2 12.2 15 12.1 12.1 12.1 12.1 12.1 12.1 12.1 12.1 12.2 16 12.1 12.1 12.0 12.1 12.1 12.1 12.1 12.1 12.1 17 12.1 12.0 12.0 12.1 12.1 12.1 12.1 12.1 12.1 18 12.1 12.0 12.0 12.1 12.0 12.1 12.1 12.1 12.1 19 12.0 12.0 12.0 12.1 12.0 12.1 12.0 12.1 12.1 l

l l

O V

2.65

./

O, i Table 2 5 Il0RTH ANNA SYi10PTic TEMPERATURE SURVEY fl0VEMBER 20, 1979 STATl0!1 "B" TIME (EST)

DEPTH 0825 og 1010 1056 1228 1312 1405 1523 1606

. Sfc 12.3 12.3 12.5 12.9 13.4 13.1 14.2 13 9 12 9*

IM 12.3 12.3 12.3 12.5 12.7 12.5 12.5 12.5 12.5 2 12.3 12.3 12.3 12.3 12.3 12.3 12.4 12 3 12.4 i 3 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.3 4 12.3 12.2 12.2 12.3 12.3 12.3 12.2 12 3 12.3

, 5 12.2 12.2 12.2 12.2 12.2 12.3 12.2 12.2 12.3

! 6 12.2 12.2 12.2 12.2 12.2 12.2 12.2 12.2 12.2

~

7 12.2 12.2 12.2 12.2 12.2 12.2 12.2 12.2 12.2 8 12.2 12.2 12.2 12.2 12.2 12.2 12.2 12.2 12.2 4

i

• Checked twice I

o' 2.66

Table 2 5 l NORTH ANNA SYNOPTIC TEMPERATURE SURVEY i

O, % NOVEMBER 20, 1979 i

STATION "C" TIME (EST)

DEPTH 0810 0906 1002 32 1215 J12), J154, 1512 1620 Sfc 12.4 12 5 12.5 12.9 13.2 14.1 13 9 14.8 13.7 IM 12.4 12.5 12.5 12.5 12.7 12 9 13 0 13 0 13.0 l 12.4 12.5 12.4 12.6 12.5 12.6 12.6 12.6 2 12.5 3 12.4 12.4 12.4 12.4 12.5 12.5 12.5 12 5 12.5 4 12.4 12.4 12.4 12.4 12.4 12.4 12.5 12.5 12.4 5 12.3 12.4 12.4 12.3 12.4 12.4 12.4 12.5 12.4 i

j 6 12.3 12.4 12.3 12.3 12.4 12.3 12.4 12.4 12.4 7 12.3 12.4 12.3 12.3 12.3 12.3 12.3 12.4 12.3

, 8 12.2 12.3 12.3 12.2 12.3 12.3 12.3 12.3 12.3

[)

9 12.2 12.3 12.1 12.2 12.3 12.2 12.3 12 3 12.2 10 12.1 12.1 12.1 12.1 12.2 12.2 12.2 12.3 12.2 11 12.0 12.1 12.1 12.1 12.2 12.1 12.2 12.2 12.1 12 12.0 12.1 '2.1 12.1 12.2 12.1 12.1 12.2 12.1 13 11.9 12.0 12.0 12.0 12.1 12.1 12.1 12.1 12.1 14 11.9 12.0 12.0 12.0 12.1 12.0 12.1 12.1 12.1 15 11.9 12.0 12.0 12.0 12.1 12.0 12.1 12.1 12.1 16 11.9 12.0 12.0 12.0 12.1 12.0 12.1 12.1 12.1 17 11 9 12.0 12.0 12.0 12.1 12.0 12.1 12.1 12.1 18 11 9 12.0 12.0 12.0 12.1 12.0 12.1 12.1 12.1 19 11 9 12.0 12.0 12.0 12.1 12.0 12.1 12.1 12.1 v

l l

2.67

Table 2 5 Il0RTH AtittA SYt10PTIC TEt1PERATURE SURVEY x NOVLMBER 20, 1979 STAT 10ft "0" TIME (EST)

DEPTH 0815 0900 1018 1050 1220 1320 1358 1527 1611 Sfc 12.4 12 5 12.7 13.0 13.2 12 9 13.1 14.2 14.1 IM 12.4 12.4 12.7 12.9 12.5 12.6 12 9 13.1 13 0 2 12.4 12.4 12.4 12.5 12.4 12.4 12.7 12.8 12.7 3 12.4 12 3 12.4 12.3 12.4. 12.3 12.5 12.4 12.3 4 12.3 12.2 12.3 12.3 12.3 12.3 12.4 12.3 12.3 5 12.3 12.2 12.2 12.3 12.3 12.3 12.4 12.3 12.3 6 12.3 12.2 12.2 12 3 12.3 12.3 12.3 12.3 12.3 7 12.2 12.2 12.2, 12 3 12.3 12.3 12.3 12.3 12.3 8 12.2 12.2 12.2 12.2 12 3 12.2 12.3 12.3 12.3 9 12.2 12.2 12.2 12.2 12.3 12.2 12.3 12.3 12.2 10 12.2 12.2 12.2 12.2 12.3 12.2 12.3 12.2 12.2 11 12.2 12.2 12.2 12.2 12.3 12.2 12.2 12.2 12.2 12 12.2 12.2 12.2 12.2 12.2 12.2 12.2 12.2 12.2 13 12.1 12.2 12.2 12.2 12.2 12.2 12.2 12.2 12.2 14 12.1 12.1 12.1 12.2 12.2 12.2 12.2 12.2 12.2 15 12.1 12.1 12.1 12.2 12.2 12.2 12.2 12.2 12.2 l 16 12.1 12.1 12.1 12.1 12.2 12.2 12.2 12.2 12.2 l

l i

O l

l

, 2.68

j l

Table 2 5 fl0RTH AtitlA SYt10PTIC TEMPERATURE SURVEY N t10VEMBER 20, 1979 STAT 10t1 E" TIME (EST)

DEPTH 0820 0912 1006 1059 1224 1315 1407 1520 16,1j, Sfc 12.3 12.4 12.5 12.9 13.5 13.2 13.5 14.2 13.8 l IM 12.3 12.4 12.4 12.5 12.5 12.6 12.7 12.8 12.8 l 2 12.3 12.3 12.4 12.4 12.4 12.4 12.5 12.5 12.5 3 12.3 12 3 12.3 12.3 12.4 12.4 12.4 12.4 12.4 l 4 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.4 12.3 5 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.4 12.3 6 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.3 7 12.3 12. ') 12.3 12.3 12.2 12.3 12.3 12.3 12.3 8 12.3 12.2 12.2 12.2 12.2 12.2 12.2 12.2 12.2 9 12.2 12.1 12.1 12.1 12.2 12.2 12.2 12.2 12.2 10 12.1 12.1 12.1 12.1 12.1 12.1 12.2 12.2 12.2 11 12.1 12.1 12.1 12.1 12.1 12.1 12.1 12.2 12.1 12 12.1 12.1 12.1 12.1 12.1 12.1 12.1 12.1 12.1 13 12.1 12.0 12.1 12.0 12.0 12.1 12.1 12.1 12.1 lh 12.0 12.0 12.0 12.0 12.0 12.0 12.1 12.1 12.1 15 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.1 12.0 16 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.1 12.0 17 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.1 12.0 18 12.0 12.0 12.0 12.0 12.0 12.0 12.0 12.1 12.0 l

2.69 l

.I i

Table 2 5 O' NORTH ANNA SYHOPTIC TEMPERATURE SURVEY NOVEMBER 20, 1979_

STATION "F" TIME (EST)

DEPTH 0822 0900 1016_ 1100 '.223 1312 1400 1519 1600 Sfc 12.4 12.3 12.7 12.6 13.2 14.1 13.6 14.1 14.1 IM 12.4 12.3 12.5 12.6 12.9 13.0 12.6 12.6 12 9 2 12.4 12.3 12.4 12.6 12.4 12.5 12.4 12.4 12.5 3- 12.4 12.3 12.4 12.6 12.4 12.4 12.4 12.4 12.4 4 12.3 12.2 12.4 12.5 12.4 12.4 12.3 12.4 12.4 5 12.2 12.2 12.4 12.4 12.3 12.4 12.3 12 3 12.3 6 12.2 12.2 12.3 12.3 12.3 12.3 12.3 12.3 12.3 7 12.2 12.1 12.3 12 3 12.3 12.2 12.2 12.2 12.2 O3J 8 12.1 12.1 12.3 12.3 12.2 12.2 12.2 12.1 12.2 9 12.1 12.0 12.2 12.2 12.2 12.1 12.1 12.2 12.1 10 12.1 12.0 12.2 12.2 12.1 12.1 12.1 12.1 12.1 11 12.1 11.9 12.1 12.1 12.1 12.1 12.1 12.0 12.1 12 12.0 11.9 12.1 12.1 12.1 12.0 12.0 12.0 12.1 13 12.0 11.9 12.0 12.1 12.0 12.0 12.0 12.0 12.1 14 12.0 11.9 12.0 12.1 12.0 12.0 12.0 12.0 12.1 15 12.0 11.9 12.0 12.1 12.0 12.0 12.0 12.0 12.1 16 12.0 11.9 12.0 12.1 12.0 12.0 12.0 12.0 12.1 1

0 2.70

Table 2 5 i \ t10RTH ANflA SYNOPTIC TEMPERATURE SURVEY

's NOV EMBER 20, 1979 STATI0tt "G" TIME (EST)

DEPTH 0816 Og 1012 1103 1218 1308 1404 1513 1605 Sfc 12.5 12.5 12.5 12.9 13.2 14.1 14.1 14.1 12.9 IM 12.5 12.5 12.5 12.6 13.0 13.0 12.7 12.8 12.7 2 12.4 12.5 12.5 12.5 12.9 12.7 12.5 12.5 12.5 3 12.4 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 4 12.4 12.5 12.4 12.5 12 5 12.5 12.4 12.5 12.4 5 12.4 12.5 12.4 12.5 12 5 12.4 12.4 12.4 12.4 6 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 l

7 12.4 12.4 12.4 12.4 12.4 12.4 12.3 12.3 12.4

, 8 12.3 12.3 12.4 12.4 12.3 12.3 12.3 12.3 12.3 9 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12 3 to 12.3 12.3 12 3 12.3 12.3 12.3 12.3 12.3 12.3 11 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.3 13 12.3 12.3 12.3 12.3 12.3 12 3 12.3 12.3 12.3 14 12.3 12.3 12 3 12.3 12.3 12.3 12.3 12.3 12.3 15 12.3 12.3 12 3 12.3 12.3 12.3 12.3 12.3 12.3 16 12.3 12.3 12.3 12.3 12 3 12.3 12 3 12.3 12.3 17 12.3 12.3 12.3 12 3 12.3 12.3 12.3 12.3 12 3 ,

1 O l 2.71

Table 2 5 Os >>0 ara ^~~^ sveloeric Tt etaaruae suavev f40VEMBER 20, 1979 STATI0tt "H" TIME (EST)

DEPTH 0814 0908 1009 1106 1215 1305 1406 1509 1608 sfc 12.4 12.5 12.7 13.0 13.8 14.1 14.4 13.8 13.4 IM 12.4 12.5 12.5 12.5 12.6 12.6 12.7 12.8 12.6 2 12.4 12 5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 3 12.4 12.5 12.4 12.5 12.4 12.4 12.4 12.4 12.4 4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 5 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 6 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 7 12.4 12.4 12.4 12.4 12.3 12.4 12.4 12.4 12.4 O, 8 u.3 u.u i2.u u.4 n.3 u.u u.3 u.u u.u 9 12.3 12.4 12.4 12.4 12 3 12.4 12.3 12.3 12.3 10 12.3 12.4 12.4 12.4 12.3 12.4 12.3 12.3 12.3 11 12.3 12.3 12.3 12.4 12.3 12.3 12.3 12.3 12.3 12 12.3 12.3 12.3 12.3 12 3 12.3 12.3 12.3 12.3 l

13 12.2 12.3 12 3 12.3 12.3 12.3 12.3 12.3 12.3 l

14 12.2 12.3 12 3 12 3 12.3 12.3 12.3 12 3 12.3 15 12.2 12 3 12.3 12.3 12.3 12.3 12.3 12.3 12.3 16 12.2 12.3 12.3 12.3 12.3 12.3 12 3 12.3 12.3 2.72

-= . . - . . - . - - . - . . - ...-.... . . - . . - . _ . .

e Table 2 5

. Il0RTH AHilA SY'10PTIC TEMPERATURE SURVEY t10VEMBER 20, 1979 STATIOil "l" TIME (EST)

DEPTH 0806 0916 1003 1111 1210 1300 1411 1505 8 J 61,8, S fc 12 5 12.6 12.7 12.9 13 5 13.8 14.0 14.0 13.8 IM 12.5 12.6 12.6 12.6 12.7 12.9 12.8 12.8 13.5*

2 12.5 12 5 12.5 12.6 12.6 12.6 12.6 12.6 12.6 -

3 12 5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12 5 4 12.5 12.5 12.4 12.4 12.5 12.5 12 5 12.5 12.4 5 12.4 12.4 12.4 12.4 12 5 12.5 12.4 12.4 12.4 6 12.4 12.4 12.4 12.4 12.4 12.5 12.4 12.4 12.4 7 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 8 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12 3 9 12.3 12.4 12.3 12.3 12.4 12.4 12.3 12.4 12.3 10 12.3 12.4 12.3 12.3 12.4 12.4 12.3 12.3 12.3 11 12.3 12.3 12.3 12.3 12.3 12.4 12.3 12.3 12.3 12 12.3 12.3 12.3 12.3 12.3 12.4 12.3 12.3 12.3 13 12.3 12.3 12.3 12.3 12.3 12.4 12.3 12.3 12.3 14 12.3 12.3 12.3 12.3 12.3 12.4 12.3 12.3 12.3 15 12.3 12.3 12.3 12 3 12.3 12.4 12 3 12.3 12.3

• Checked twice O

2.73

e. - ,. -

i Table 2 5

~'

fl0RTH ANNA SYI10PTIC TEMPERATURE SURVEY Q(/ '

it0VEMBER 20, 1979 STATI0li "J" TlHE (EST)

DEPTH 0810 0913 1006 1109 1212 1302 1409 1507_ 1611 Sfc 12.4 12.6 12.8 13.0 13.1 14.0 14.1 13 9 13.6 IM 12.4 12.6 12.7 12.7 12.7 12.8 12.8 12.7 12.8 2 12.4 12.6 12.6 12.6 12.6 12.6 12.6 12.6 12.5 3 12.4 12.5 12.5 12.5 12.5 12.6 12.5 12.5 12.5 4 12.3 12.5 12.5 12 5 12.5 12.4 12.4 12.5 12.5 5 12.3 12.4 12.5 12.5 12.5 12 3 12.5 12.4 12.4 6 12.3 12.4 12.4 12.4 12.5 12.4 12.4 12.4 12.4 7 12.3 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.3 Q; 8 12.3 12.4 12.4 12.4 12.4 12.4 12.3 12.4 12.3 9 12.2 12.4 12.4 12.3 12.4 12.4 12.3 12.3 12.3 10 12.2 12.3 12.4 12 3 12.3 12.3 12.3 12.3 12 3 11 12.2 12.3 12.4 12.3 12.3 12.3 12.3 12.3 12.3 12 12.2 12.3 12.3 12.3 12.3 12.3 12 3 12.3 12.3 13 12.1 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.3 I4 12.1 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.3 15 12.1 12 3 12.3 12.3 12.3 12.3 12 3 12.3 12.3 16 12.1 12.3 12.3 12.3 12 3 12 3 12.3 12.3 12.3 i

)

O l

2.74

( . l

\ -

Table 2 5 g fl0RTH AfillA SYt10PTIC TEMPERATURE SURVEY t10VEtiBER 20. 1971 STATION "K" TIME (EST)

DEPTH 0803 0925 1000 1140 1215 1322_ 1419 1515 105 Sfc 12.4 12.5 12.6 13.2 13.2 13.4 13.9 14.3 13.4 IM 12.1- 12.5 12 5 12.6 12.6 12.7 12.7 12.7 13 3 2 12.4 12.5 12.4 12.4 12.4 12.5 12.5 12.6 13.0 3 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.5 12 9 4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.6 5 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.5

~

6 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 7 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 8 12.4 T2.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 s

9 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 12.4 10 12.3 12.4 12.4 12.3 12.3 12.4 12.3 12.4 12.4 11 12.3 12.4 12.3 12.3 12.3 12.3 12.3 12.4 12.4 12 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.4 12.3 13 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.4 12.3 14 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12.3 12 3 d

2.75

s Table 2 5

')

NORTH ANNA SYNOPTIC TEMPERATURE SURVEY NOV EMBER 20. 1979 STATION "L" TlHE (EST)

DEPTH 0807 0920 1004 1135 1220 1318 1415 1[18, 1632 sfc 12.3 12.5 12.6 12.6 13.5 13.8 13 5 13 1 12.6 IM 12.3 12.5 12.5 12.4 12.7 12.7 12.6 12.4 12.4 2 12.3 12.5 12.5 12.4 12.5 12.4 12.4 12.4 12.4 3 12.3 12.4 12.4 12.3 12.4 12.4 12.4 12.4 12.4 4 12.3 12.4 12.4 12.3 12.4 12.3 12 3 12.4 12.4 5 12.3 12.4 12.4 12.3 12.3 12.3 12.3 12.3 12.4 l 6 12.2 12.4 12.4 12.3 12.3 12.3 12.3 12.3 12.3 7 17.2 12.3 12.3 12.3 12 3 12.3 12 3 12 3 12.3 O - 8 12.2 12.3 12.3 12.2 12 3 12.3 12.3 12.3 12 3 9 12.2 12.3 12 3 12.2 12.3 12.3 12.3 12.3 12.3 10 12.1 12.2 12.3 12.2 12.2 12.3 12.2 12.3 12 3 11 12.1 12.2 12.2 12,2 12.2 12.2 12.2 12.2 12 3 12 12.1 12.2 12.2 12.2 12.2 17.2 12.2 12.2 12.2 i

l

/

l 2.76

, Table 2 5 fl0RTH ANNA SYt10PTIC TEMPERATURE SURVEY NOVEMBER 20, 1979 STAT 10ll "M" TIME (EST)

DEPTH 0812 0913 1013 1130 1225 1313 1406 1525 1625 Sfc 12.2 12.3 12.4 12.5 13.5 13.0 13.8 13.2 13 5 IM 12.2 12.3 12 3 12.3 12.3 12.3 12.7 12.3 12 9

~

2 12.2 12.2 12.2 12.2 12.2 12.2 12.3 12.2 '12.8 3 12.2 12.2 12.1 12.1 12.1 12.1 12.2 12.1 12.2 4 12.' 12.1 12.1 12.0 12.0 12.1 12.1 12.1 12.1 5 12.0 c .1 12.1 12.0 12.0 12.0 12.1 12.0 12.0 6 12.0 12.0 12.1 11.9 11 9 12.0 12.0 11.9 12.0 7 11.9 12.0 12.0 11.9 11.8 11 9 11.9 11.8 11 9 8 11.8 11 9 11.9 11.8 11.8 11.8 11.8 11.8 11.8 9 11.8 11.8 11.8 11.8 11.7 11.7 11.8 11.8 11.8 10 11.7 11.8 11.8 11.7 11.7 11.7 11.8 11.7 11.7 11 11.7 11.7 11.7 11.7 11.6 11.7 11.7 11.7 11.7 12 11.7 11.7 11.7 11.6 11.6 11.6 11.7 11.7 11.7 13 11.6 11.7 11.7- 11.6 11.6 11.6 11.7 11.7 11.7 i

O 2.77

Table 2 5 O- 5 fl0RTH ANllA SYNOPTIC TEMPERATURE SURVEY F10VEMBER 20, 1979 STAT l 0ft "it" i

TIME (EST)

DEPTH 0821 0905 1019 1125 1232 1305 1400 1530_ 1620 Sfc 11 9 11.9 12.2 12.2 13.6 13.4 12 5 13.3 13.3 1M 11.9 11.9 12.0 12.0 12.0 12.0 12.2 12.0 12.2 2 11.9 11.9 11.9 11 9 11 9 11 9 12.0 11.9 11.9 1

3 11 9 11.8 11 9 11.9 11.8 11.8 11 9 11.8 11.8 4 11.8 11.8 11.8 11.8 11.8 11.8 11.8 11.8 11.8 5 11.7 11.7 11.8 11.8 11.7 11.8 11.8 11.8 11.7 6 11.7 11.7 11.7 11.7 11.7 11.7 11.7 11.7 11.7 Q- ~

7 11.7 11.7 11.7 11.7 11.6 11.7 11.6 11.6 11.6 8 11.7 11.7 11.7 11 7 11.6 11.6 11.6 11.6 11.6 9 11.7 11.6 11.6 11.7 11.6 11.6 11.6 11.6 11.6 10 11.7 11.6 11.6 11.7 11.6 11.6 11.6 11.6 11.6 11 11.7 11.6 11.6 11.7 11.6 11.6 11.6 11.6 11.6 12 11.7 11.6 11.6 11.7 11.6 11.6 11.6 11.6 11.6-l l

I 2.78 .

g e-

Table 2 5

, tJORTil AtiliA SYtt0PTIC TEMPERATURE SURVEY t10VEMBER 2C, 1979_

STATlot! "0" TIME (EST)

DEPTH 0807_ 0920 1000 1111 1210 1340 1420 1507 1605 Sfc 11.6 11.4 11.8 11.7 12.5 12 9 13.1 13.2 12.5 lit 11.6 11.4 11.6 11.6 12.1 12.6 11.9 12.3 11.7 2 11.5 11.2 11.4 11.4 11.8 11.4 11.7 12.0 11.5 3 11.1 11.1 11.0 10.9 11.4 11.1 11.0 11.5 11.2 4 10.6 10.7 10.6 10.4 10.8 10.6 10.6 10.7 10.6 5 10.3 10.2 10.4 10.2 10.5 10.4 10 3 10.6 10.1 6 10.2 10.2 10.3 10.2 10 3 10.1 10.1 10.4 10.1 7 10.2 10.1 10.1 10.1 10.1 10.0 10.1 10.2 10.1 8 10.2 10.0 10.1 9.9 10.1 10.0 10.1 10.2 10.1

]

9 10.1 99 10.0 9.8 10.1 10.0 10.1 10.2 10.1 4

i 1O 2.79

l Table 2 5 NORTH ANNA SYNOPTIC TEMPERATURE SURVEY _

! NOVEMBER 20, 1979 STATION "P" TIME (EST)

DEPTH 0819 0908 1018 1100 1215 13252 1409 1520 1554 Sfc 11.4 11.3 11.6 11.3 12.5 12.4 13.6 13.3 13.3 IM 11.4 11.2 11.4 11.2 11.5 11.4 11.7 11 7 11.4 2 11.3 11.2 11.2 11.1 11.3 11.1 11.2 11.4 11.2 3 11.3 11.0 11.0 11.0 11.2 11.0 11.0 11.2 11.1 4 11.1 10.7 10.7 10.5 10 9 10.7 10.7 11.0 10.8 5 10.7 10.3 10.5 10.4 10.5 10.4 10.4 10.6 10.3 6 10.5 10.2 10.3 10.2 10.2 10.2 10.2 10.3 10.2 7 10.3 10.2 10.3 10.2 10.2 10.2 10.2 10 3 10.1

[ 8 10.3 10.2 10.3 10.2 10.2 10.2 10.2 10.3 10.1 9 10 3 10.2 10.3 10.2 10.2 10.2 10.2 10.3 10.2 10 10.3 10.2 10 3 10.2 10.2 10.2 10.2 10.2 10.2 11 10.3 10.2 10.3 10.2 10.2 10.1 10.2 10.2 10.2 l

l O

2.80 I

Table 2 5 fl0RTH AllNA SYl10PTIC TEMPERATURE SURVEY O' t10VEMBER 20, 1979 STATI0tl "Q" TIME (EST) i i

DEPTH 0825 0902 1025 1055 1220 0 1).10, 1402 1523 1548 Sfc 11.2 11.2 11.8 11.6 12.5 12.9 13.6 14.0 14.3 1H 11.2 11.2 11.3 11.2 11 9 11.9 11.5 13.7 12.9 2 11.2 11.2 11.2 11.2 11.3 11.3 11 3 11 3 11.2 3 11.2 11.2 11.1 11.1 11.2 11.0 11.2 11.2 11.0 4 11.0 10 9 10.9 10.8 10.9 10 9 10 9 11.0 10.9 5 10.8 10.7 10.8 10.6 10.7 10.7 10.7 10.8 10.7 6 10.7 10.6 10.7 10.6 10.7 10.6 10.6 10.7 10.6 7 10.6 10.6 10.7 10.5 10.7 10.6 10.6 10.7 10.6 8 10.6 10.6 10.6 10.4 10.6 10.6 10.5 10.6 10.5 9 10.6 10.5 10.6 10.4 10.6 10.6 10.5 10.5 10.4 10 10.6 10.5 10.6 10.4 10.6 10.6 10.5 10.5 10.5 11 10.6 10.5 10.6 10.4 10.6 10.6 10.5 10.5 10.4

(

l L

2.81

i l

O '

i I

l t

t t

l Impingement of Fish E.T.S. Section 3.1.2.2 O _d l

-3.0

O Introduction The intake screens at power stations (usually 9.5 mm mesh) filter the water and provide protection to the cooling system from damage and clogging.

Fishes which are too large to pass through the mesh may be trapped in front of the screens by the velocity force of the circulating water pumps (C. W. P.) and eventually will tire and become impinged (EPA,1977).

During screen wash intervals, impinged fish are washed from the screens by a spray wash pump and are either discarded or returned to the.

waterway. Observed and latent mortality of the fish may approach 100%,

although some modifications at power stations have been proposed to mitigate the environmental impact (White and Brehmer, 1976; Scotton and Anson, 1977).

The number of fishes impinged is influenced by many vari, ables (water tempera-ture, intake design, etc.) and the significance of the numbers should be evaluated only with reference to the particular site in question.

The objectives of this report were to determine the number, size, weight, and species of fish collected off the vertical traveling screens at North Anna from January through December 1979. These data in conjunction with past and future reports will determine the environmental impact of plant operation on Lake Anna, Virginia.

Methods and Materials All of the organisms washed from the traveling screens in a 24-hour period were collected twice a week for three weeks of a four week cycle. On O

3.1

}-

the fourth week,12 two-hour samples were collected during one 24-hour period.

All screens were cleaned prior to the sample and were allowed to run at least 10 minutes at the end of each sample period. Fish and debris were washed into a catch basket (2.6m x 1.5m x 1.lm) at the end of the sluiceway. During times of low impingement, a 9.5 m mesh bag net was used in the sluiceway to collect the samples. The catch basket was cleaned at the beginning of each sample period so that any fish washed from the screens during the sample would be collected, should the screens start rotating due to increased differ-ential pressure. All fish collected were returned to the laboratory where they were identified, counted, measured and weighed. Up to 50 individuals of each species were measured to nearest m (total length) and weighed to nearest 0.1 gm; all over 50 were enumerated and bulk weighed by species.

O Surface water temperature, dissolved oxygen, weather conditions and number of C. W. P'.s and screens operating were recorded at each sample time.

Results From January through December 1979 a total of 148,995 fishes (2248Kg) representing 18 species was collected from the intake traveling screens at North Anna Power Station (Table 3.1). The family Centrarchidae had the most species represented (8), however the family Clupeidae with its single species gizzard shad (Dorosoma cepedianum) clearly dominated the catch with 77.6% of the total number collected. Yellow perch (Perca flavescens) and black crappie (Pomoxis nigromaculatus) comprised 14.8% and 6.5%, respectively, of the total with the remaining species comprising less than 0.5% each.

O 3.2

./

L

.- _ . - . . . . -. -= . _ . -

O Table 3.2 shows the total number (T) and weight (W) in grams of fishes impinged by sample date. Gizzard shad, crappie and yellow perch are separated individually in the table and are designated as DC, PN and PF, respectively.

The remaining species are considered together and are designated as OT (other fish). Total number and weight across all species are also given. Samples were collected from all screens through which water was being pumped. A range of 2-7 pumps operated (Units 1 and 2) during the sample year.

Gizzard shad numbers were highest from January through April. The highest single number impinged (13,516) occurred on March 6,1979. One unexplained increase of gizzard shad numbers (3612) occurred on May 17, 1979; numbers were low prior to and following this sample. The black crappie occurred in all but two of the samples with greatest numbers impinged from late February to early April. Yellow perch peak abundance coincided with that of crappie.

O Tebie 3.3 shows the imnin9ement data for each 2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> sampie period by sample date. Species designation is the same as in Table 3.2. Strong diel patterns were not apparent, however during the high impingement rate months of February and March numbers were greatest from 0800 to 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br />.

Length frequency data in 50m size ranges for impinged fish are shown in Table 3.4. Of a total of 10,207 fish measured, 89.0% were less than 200m total length with the 100-149m size range comprising 50.4% of the ,

total. Gizzard shad and yellow perch were more abundant in the 100-149mm l class, whereas the crappte was more abundant in the 150-199m size range. A l

large majority of the shortest individuals (0-49m) were bluegill (Lepomis '

macrochirus ) .

Table 3.5 gives estimates and standard deviations for total numbers of fish impinged by species during station operation. The data are summarized O

3.3 l

,l O,

by season (Winter

January - March; Spring: April - June; Sumer: July -

September; Fall: October - December). Seasonal esticates were prepared by treating the total 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> counts and the 12-two hour counts as coming from two different strata with different weights. The formulae for stratified random sampling with a finite population correction factor applied was l taken from Cochran (1963). Seasonal estimates were then computed by expanding the means by the number of days in the respective seasons. An estimated total of 613,116 fish (approx. 9251 Kg) were impinged from January through December 1979. Seasonal estimates were considerably higher in the winter (566,149) and lowest in the sumer (1774).

The relationship between surface temperature (C) and number of fish impinged j per screen is shown in Figure 3.1. Temperatures ranged from 2.5C in February to 28.4C in August. Impingement numbers significantly increased when tempera-tures began to rise following the winter low. The numbers then declined when temperatures exceeded 10.0C and remained low for the remainder of the year.

Discussion The estimated total number of fish impinged in 1979 (613,116) at North Anna Power Station was substantially higher than in 1978 (22,117). No winter season data were included in the 1978 report as the onset of normal operation of Unit 1 was in the spring. Ninety two percent of the total fish impinged in 1979 were caught in the winter season. Generally, both years had compara-ble species representation. One new family, Petromyzontidae (lampreys),

appeared in 1979.

The most abundant fish impinged was the gizzard shad, which was predominant

, in winter months. Wapora Inc. (1975),in an impingement study on the Illinois

O 3.4 1

l l

l ~ .

m _

l

)

1 O River, found that gizzard shad comprised 89% by number and 73% by weight of the total fish impinged. This species generally is considered a forage fish, however, it may become a nuisance due to conditions that encourage over-population (Reed and Simmons, 1976; McNeal, 1977). In 1979 the gizzard shad constituted 46.8% of the total biomass taken by rotenne sampling in Lake Anna Reservoir (see Vol. 2 of this report). It is also well docuinented that members of the Clupeidae are susceptible to impingement during the winter season (Edwards et al., 1976; Eisele and Malaric, 1977; Loar et al., 1977).

The number of fish impinged at North Anna does not appear unusual in light of those reported at 33 other power stations located on inland waters (Freemen and Sharma, 1977). The game species, yellow perch and crappie, totaled 128,210 individuals. According to a creel survey conducted by the Virginia C'ommission of Game and Inland Fisheries, fishermen caught a total of 110,181 yellow perch and crappie from Lake Anna in 1978 (Charles Sledd, personalcommunication).

Length frequency data of fish impinged indicated that 89% of those fish were less than 200 mm. This concurs with the 1978 annual report and with other investigations (Nalco, Inc., 1976; Mather et al., 1977).

The temperature and impingement graph indicated that impingement rates increased significantly when temperatures increased above the winter low value up to 10.00. Fish, which are already under the winter stress, apparently becrie more susceptible to impingement when temperature increases signal more movement by them while they are in their weakened condition. Above 10.0C fish have apparently recovered from winter stress enough to avoid impingement.

In conclusion, the total number of fish impinged at North Anna is

! considered to have minimal impact on Lake Anna's fishery.

O 3.5 l

O- O O

) . ;

TABLE 3.1. Tile TOTAL CATCil AND ~P ERCENT OF FISilES COLLECTED T Roil Tile VERTICAL T R AVE LIllG SCREENS AT HORTil AHHA POWER STATION DURING 1979 CATCil  %

AGHATHA PETRONTZONTIDAE - lampreys PETROMYZOH MARIHUS - sea lamprey 7 < 0.5 OSTEICitT"YES AMGUILLIDAE - freshunter eels .

AllGUIL L A ROSTRATA - American eel 62 < 0.5 CLUPEIDAE - herrings

• DOROSONA CEPEDIANUM - gi==ard shad 115691 77.6 i

CYPRINIDAE - minnous and carps llO T EMIG 0H U S CRYSOLEUCAS golden shiner 21 < 0.5 PIIOXINUS OREAS - mountain redhelly dace I < 0.5 u

• ICTALURIDAE - freshwater catfishes ICTALURUS HEBULOSJS - broun bullhead 160 < 0.5 ICTALURUS PUNCTATUS - channel catfish 5 < 0.5 P E RCI CllTilYI D A E - temperate basses MO Roll E AllE RIC Alla - uhite perch 311 < 0.5 MOROHE SAXATILIS - striped bass 253 < 0.5 ,

e CENTRARCilIDAE - sunfishes ,

AC AllTil A RCllUS POMOTIS - mud sunfish 7 < 0.5 i LEPOIIIS AURITUS - redbreast sunfish I .< 0.5 i

, LEPollIS GIBBOSUS - pumpkinseed 11 < 0.5

, LEPO!!IS GULOSUS - uarmouth 9 < 0.5 LEPOMIS M ACROCIIIRUS - bluegill 626 < 0.5 LEPOMIS MICROLOPIIUS - redear sunfish 2 < 0.5 MICROPTERUS SALMOIDES - largenouth bass 8 < 0.5 t

__. Pol 10XIS HIGR0!!ACULATUS - black crappie 9750 6.5 .

PERCIDAE - perches PERCA FLAVESCENS - yellou perch 22070 14.8 TOTAL 148995

~2 e

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o i

IAett 3.2. THE 683SER MS WEIG8tf 4GitS.l 0F IIelVIDUALS FOR SELECTES FIS64 SPECIES Me TOTALS FOR OTHER SPECIES INPINEED AT HORTH Mete '

i SY SAttPLE DATE Dut!HS 1979. VALUES REPRESEHT TOTALS OVER A 24-h0Lmt PERIGO DCM Pted Ff T Pf W OTT OTW 1FI504 7NT DATE DCT Piti 790183 45 934.9 49 2749.7 1 176.5 7 68.5 139 3914.2 794105 177 1718.1 16 1355.6 2 39.9 4 32.4 19e 3195.5 l 799589 172 leet.. 17 1154.4 3 259.9 le 71.4 197 3340.6  ;

790116 362 4819.9 18 1349.3 1 94.1 e 0.0 341 5463.3 ,

79elle 539 6637.1 52 3905.4 e e.e 1 54.0 592 185%.9 794124 5345 4849.8 44 3757.4 4 365.e 16 158.4 5402 8239.8 .

794126 6315 18466.7 22 1818.4 4 tet.1 4 193.9 4346 12488.5  ;

1572 7752.5 32 1931.6 2 19.4 3 24.2 1609 9798.9 .

790138 794281 4424 52867.7 44 3445.0 1 77.7 13 195.9 4441 54552.3 ,

790266 6175 73294.0 45 3463.3 1 let.6 3 116.4 4224 77e41.6 790214 186 1902.6 8 0.0 e 4.0 e 0.6 146 1904.6 8 794 m 4ie 5783.4 a 984.7 . ... is 63.8 439 6 44.. l  :'

794221 6349 45317.3 78 1999.7 5 47.9 7 40.9 4454 37346.7 790223 5719 77795.3 59 1489.1 5 67.3 4 77.0 5794 79423.2 ,

794227 7488 11597.9 194 19758.3 322 11512.3 36 484.1 7948 35268.2 798301 12344 174682.1 475 20920.0 685 23497.2 42 1 47.1 13546 222855.4 794344 13516 192249.1 1346 53326.1 1944 44549.4 175 7372.5 16954 344129.0 790313 9247 132363.7 34e 25421.7 1847 33544.3 45 1379.5 11522 193481.2

• i 798315 18264 121253.1 1310 77367.5 2140 44041.2 31 3449.9 13709 246165.5  !

794328 9440 119755.6 486 26147.9 2468 44447.2 26 3074.4 It3T3 187567.6  ?

I 794323 6498 91212.4 282 19166.0 4616 51989.6 27 1326.7 11414 163459.6 794327 2034 34645.4 443 25279.2 3948 62944.3 54 3286.9 6434 122907.5 794329 1825 f t. A6.4 1865 45144.8 3477 43729.9 M 1641.2 6394 111484.9 794403 777 18203.7 375 18444.4 441 4394.6 27 2071.4 1648 26674.3 i 251 2827.e 34 1431.6 6 129.3 7 217.0 384 4604.%

w 79041e 9711.7

• 790432 289 3637.2 125 5470.6 to 603.9 0 0.0 434

, q 794417 les 2371.5 77 2552.5 15 284.9 4 265.5 274 5426.4  !

144 1943.8 Se 2335.e 17 369.3 6 242.3 247 4449.6 794419 2932.7 794424 55 735.9 59 1885.6 le 300.1 3 11.1 127  !

r 49 1876.6 64 204e.2 3 133.8 6 65.4 161 330s.4 794426 790581 28 452.4 52 1603.9 17 351.1 18 797.7 107 3285.5 4 106.6 32 1926.1 2 25.8 11 1368.4 48 3199.4 790504 '

4 44.4 64 1654.0 4 174.5 12 539.8 44 2413.1 794510 232.4 73 3247.9 3 111.4 25 3396.0 187 4984.5 790515 &

3612 64740.9 69 3441.2 . 61 547.9 25 1655.9 3767 98425.9 794517 790522 44 977.2 to 1435.2 e 0.0 13 837.6 85 3650.8 e e.e 12 620.0 44 2646.7 i>

794524 11 257.4 25 1763.3 794529 9 304.6 36 2016.5 1 14.3 34 2772.4 42 5103.2 t 794445 17 514.9 50 2016.9 38 266.0 11 623.3 104 3421.1 790607 1 23.4 36 1518.0 2 23.6 13 398.e 52 1955.0 -

794612 1 te.6 46 1607.4 e 0.0 47 2340.7 94 4009.1 f 790614 e e.e It 441.0 e 0.8 25 916.7 - 37 1397.7 e 13 1114.7 26 1864.4 794619 7,e621 0

e 0.9 13 E

745.7 n.4 e 0.8

... 14 7i.1 14 147.6 '.

796626 1 69.9 le 595.2 e 0.0 9 242.6 to 947.7 ,

g 794703 4 4.0 le 624.2 1 1.2 4 449.4 19 1975.2 5 794766 e e.e a 628.0 e 4.0 6 198.6 14 426.6 '

794710 e 4.0 2 174.4 4 4.0 le 724.4 12 899.2 790712 e 8.0 3 167.0 0 0.8 e 4.0 3 367.0 a 794717 4 0.0 6 235.7 0 0.8 9 e65.8 15 1100.7 55.0 7 441.4 1 10.7 4 321.5 14 428.6 ,

790719 2 2 3.9 3 234.5 3 23.6 3 18.2 11 244.2 794724 e e.e 6 333.2 e 4.0 e 2 7.0 14 540.2 790731 794882 e 0.0 1 64.1 2 14.9 1 4.1 4 43.1 794407 e e.4 4 261.7 e 0.0 13 352.6 17 414.3

O O O

'ASLE 3.2. Test seteER Ape HEIGHT IGHS. 9 0F Ite!V100AL5 FOR SELECTED FIEN SPECIES Abe TOTALS FOR OTHER SPECIES IMPINGES AT NORTM Ate 4A Bf SAMPLE DAIE 00R!l831979. VALUE5 REPRESENT TOTALS OVER A 24-HOUR PER100 DATE DCT DCW stiT Pfad PFT PFW OTT 9fM TFISH TNT 790449 4 0.0 3 231.6 0 8.4 11 342.4 13 444.2 796814 1 51.0 5 405.6 4 8.8 4 54.7 le 515.3 '

798416 3 356.2 5 323.1 0 0.8 4 218.7 15 492.2 796421 1 10.1 5 296.1 4 8.8 7 248.4 13 514.2 1 79es2s 2 23.6 7 446.5 e e.0 5 379.4 14 1s49.5  ;

796834 4 4.4 7 537.8 8 4.0 7 375.6 14 913.4 790945 8 8.8 3 275.4 8 8.0 5 243.1 8 518.5  ;

798947 8 S.8 9 422.1 4 0.0 9 159.1 17 777.5 '

7,.9n i 62.. . 553.. . ... ie 647.9 i9 m 3.7 794913 e 4.0 2 173.5 1 120.8 7 569.7 le 443.2 l 790914 e e.0 17 741.4 1 207.9 14 1263.2 32 2172.5 i 794925 1 64.5 to 1827.3 0 9.0 26 1937.8 47 3429.6 794927 2 100.0 75 2844.2 2 220.0 34 1372.4 116 4753.4  !

791082 1 45.4 49 1835.1 0 8.8 41 2554.1 131 4541.2 l 791044 1 39.9 156 4344.2 8 4.8 40 1644.s 193 5957.0 t 791049 9 0.0 34 1154.8 8 0.4 16 970.5 54 2127.3 '

791081 1 58.7 42 1618.7 8 0.5 26 1195.2 69 2944.2  !

791816 3 54.2 let 2574.4 1 82.8 27 1153.3 134 3432.4 m .23 ... 44 1325.4 . ... le 534., 54 1 9...  !

79i.25 . ... 16 397.3 . ... 16 4 2.5 32 a7,..  ;

791034 3 321.7 164 3904.5 0 0.0 13 511.7 144 4541.9 8 791181 4 134.5 31 947.7 8 8.8 9 458.7 45 1534.1 I 791186 3 87.3 57 1364.5 0 4.8 17 646.1 74 2046.2 791184 5 44.6 19 545.6 1 25.1 16 406.8 34 1928.6 791113 5 1 96. 0 12 444.3 1 24.8 19 641.9 34 1342.3

." 791119 2 4.1 115 4177.1 1 224.3 22 481.4 132 4822.0 '

00 791121 1 35.7 199 5877.7 0 0.0 48 784.1 227 6583.5 791127 2 55.1 47 2099.4 0 0.8 29 468.2 67 2552.8 I 791129 4 27.6 49 3120.9 0 0.0 31 772.5 92 3794.8 i

, 791284 1 45.3 186 4402.4 0 S.4 29 321.8 123 4656.4

791286 4 205.7 164 6182.4 4 4.0 31 423.9 186 6682.9 791211 6 217.6 37 2357.9 8 8.8 53 635.9 73 1989.1 791214 4 8.8 4 493.1 8 8.4 2 14.4 5 584.5 791224 4 227.4 53 3403.2 8 0.0 45 447.3 85 4834.0 791227 14 328.3 334 7812.4 e 8.0 19 187.5 159 8248.8 791229 15 405.6 44 5459.9 1 35.5 9 325.6 105 6349.6 TOTAL 115691 1342354.4 9750 459925.2 82070 379476.5 3648 45556.4 144995 2248472.2 h

i I

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l TABLE 3.4 LEtETH-FREEIUENCIES OF FISHES It1PIIEED AT l HORTH Ale 4A POWER STATIOl4 DURING 1979 i

LE14GHIS ARE IN toi.

I THIS TABLE REFLECTS ONLY THOSE FISif ACTUALLY ttEASURED l SPECIES e - 49 58 - 99 lee - 149 15e - 199 200 - 249 2500 TOTAL ACM4T!!ARCHUS POMOTIS S e 7 e e 0 7 AllGUILLA ROSTRATA e e e e 0 62 62 DOROSonA CEPEDIAHUN 1 93 3G27 95 ' 171 11 3398 ICTALURUS IIE00LO505 4 1 5 e 143 3 160 ICTALURUS PullCIATUS e e 3 2 e e 5 LEPollIS AURITUS 1 e 0 e e e 1 j

LEP0HIS G18805U5 1 2 7 0 1 e 11 LEPortIS GutoSUS 1 2 6 8 e S 9 f LEPollIS HACROCilIRUS 72 176 les 195 3 e 426  !

LEPOIIIS HICROLOPHUS e e e e 2 0 1 l ttICROPIERUS SALHOIOES '

2 4 0 0 1 1 e HORol8E AttERICA444 1 37 85 14e 42 6 311 HONOIIE SAX 4TILIS e 110 140 2 1 e 253 180iEttIGotaJS CRYSOLEUCAS e 11 6 3 1 8 21 PERCA FLAVESCEtl3 1 557 738 245 53 19 1605 PETR0t1YZoll HARIHUS S S e 5 2 0 7 PH0xuasS OREAS e 1 e e e e 1 i Pon0x!S HIGRONACULATUS e 743 952 1432 591 2 3720 N TOTAL se 1737 5148 2127 1911 104 19207 l C i PERCEHT e.e 17.8 58.4 28.8 9.9 1.s f

i I

I I

l l

i i

O. I O O .

t IA8tt 3.5. ESIIttATED TOTAL IRAeERS Alm SI AlsARD DEVI ATIDtIS Of THESE ESTlHAIES OF FISHES IstPilaGED AT IlORill AISIA Poller STATI0tt FOR EACat CALEICER SE A50ta Ale FOR 1979 ,

SPECIES HILLIER Hil4510 SPRiflG SPRSID Sutt1ER SLR15fD FALL FALSTD TOTAL 101510 l _

ACAltitt*RCset15 Post 0 TIS 3 7 . 3 . . 21.0 . 24 8 '

AtlG4)lttA R051 RATA 248 . . 121 . . . . 248 121 00H)SollA CEPEDIAIRAI 454793 74 23214.8 166984 63.0 16647 339.5 27 478411 167811 ICI ALIIPUS B:E00t05US 171 15 428.4 97 73.5 19S 17.5 15 691 222 ICIALLDUS PtolCI ATUS 14 3 . 6 . . 3.5 . 17 7 LEIOlll5 AURlluS . 3 . . . . 3.5 . 3 3 Eff0til5 GIfDOSUS . 17 22.4 . 7.0 16 21.0 5 50 24 1Elltil5 GutOSUS 24 14 7.0 41 3.5 12 14.0 3 49 45 g 673.5 83 2677 582 i W BElWil5 IIACFortelPUS 637 144 912.8 466 451.5 307 IEl'ultl5 tilCl?otorttu5 7 . . 13 3.5 . . 3 10 14  !

A stICPOPIEROS SALIt010E5 3 . 10.5 3 14.0 8 . 6 28 10 l

latWatt At:ERICAllA 840 103 65.8 1350 262.5 32 346.5 122 1515 1359 t1Cf'OtaE SAXAlltI5 434 292 10.5 180 . 8 612.5 . 1057 343 i:011881608215 CR rWL ELC AS 35 . 53.9 41 . 22 . . . 92 47 PERCA f t AVE 5 cells 81571 15 4617.9 34482 52.5 6400 24.5 37 26266 35071 PE IE0tif 20ta 18'87I85J5 14 . 14.0 8 . 13 . . to 15 ,

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crisere 4.1). At the end of eech 10-minute period, the nets were retrieved and rinsed thoroughly. Samples were returned to the laboratory for sorting and preservation (3% buffered formalin).

All fish eggs and larvae were identified to the lowest possible taxon.

The volume of water filtered was determined using large-vaned, low-velocity-sensitive digital flowmeters (General Oceanics Model 2030 MK II).

Water temperatures and dissolved oxygens were recorded at surface, midwater and bottom.

1 Results During the period March through July 1979, a total of 1589 fish larvae representing 5 species (Table 4.1) was collected on 21 sample dates. Of the larvae collected, 87.9% were gizzard shad (Dorosoma cepedianum), 7.0% were O

4.1

Os sunfish (Lepomis spp.) and 3.5% were white perch (Morone americana) (Table 4.2).

Gizzard shad were most abundant from mid-May through June, while white perch dominated collections from mid-April through mid-May. Lepomis spp. were more abundant during July. Yellow perch (Perca flavescens) and black crappie (Pomoxis nigromaculatus) were represented by relatively few numbers whicn were concentrated in April and May collections (Table 4.2).

As indicated by Table 4.3 larvae were entrained in equal numbers at all sample depths, however, individual species varied with depth. Lepomis spp.,

crappie and yellow perch were collected primarily from surface waters, 75%, 83%

and 83%, respectively. White perch were more abundant in midwater samples, while gizzard shad were slightly more abundant in midwater and bottom samples (Table 4.3).

Table 4.4 shows numbers and percent of gizzard shad larvae collected O^' by sample time. Entrainment values of gizzard shad were much greater during the 2400 hour0.0278 days <br />0.667 hours <br />0.00397 weeks <br />9.132e-4 months <br /> samples (52.9%), and were lowest during the samples collected in daylight, 0600 and 1200 hours0.0139 days <br />0.333 hours <br />0.00198 weeks <br />4.566e-4 months <br />.

Daily entrainment estimates were prepared treating depths as strata.

Stratum weights were equal and finite population factor was ignored (Cochran, 1963). Daily density values (larvae /1,000 m3) are multiplied by average volume pumped that sample day (Table 4.5). Period estimates were computed using daily estimates and number of days in each period. Variances for period estimates i

were taken as a weighted average of daily variances (Table 4.5). Totaling period estimates by species results in estimate of total entrainment for March - July 1979 (Table 4.6).

ss 4.2

l j

. O Discussion ]

During 1979 entrainment sampling, no fish eggs were collected. Most species of reproducing fish in Lake Anna produce demersal, adhesive eggs which greatly reduces potential entrainment (Lippson and Moran,1974).

Results for 1979 indicate several changes from data collected in 1978. In 1979 total numbers increased and gizzard shad comprised 87.9% of larvae collected; whereas during 1978 gizzard shad represented 43.2% of total collections. Lepomis spp. and yellow perch numbers and percent composition declined from 1978 values. Vertical distribution of larvae collected during 1979 varied from collections of 1978, due to the increased gizzard shad numbers at all depths and the decreases in Lecomis spp,and yellow perch.

Total numbers at surface, midwater and bottom are nearly equal, resulting from gizzard shad larvae being entrained in greater numbers at midwater (34%) and bottom (37%); whereas other species were more abundant in surface collections.

This vertical distribution pattern differs from that of other reservoirs,where Dorosoma sp. larvae were collected in much greater numbers in surface waters (Edwards et al., 1977 and Graser, 1978).

Gizzard shad larvae were entrained in greater numbers (52.9%) during the 2400 hour0.0278 days <br />0.667 hours <br />0.00397 weeks <br />9.132e-4 months <br /> collections. This may have resulted from higher levels of net avoidance during daylight samples as shown by numerous researchers (Ecological Analysts,1977) .

Of the total larvae entrained (1.48 x 10 )8 during the 1979 sample period gizzard shad comprised 86.5%. Based on 1979 estimates of total standing crop of Lake Anna (see Vol. 2 of this report), gizzard shad represent 46.8% or 109.1 kg/ hectare. In view of the high fecundity estimates for gizzard shad whir.h range from 22,400 - 543,900 (Jones et al., 1978), the potential O

4.3

.I.

Q. m.

production of gizzard shad 11rvae should be sufficient to withstand the entrain- j ment effects of North Anna Power Station. The total number of larvae entrained 7

for all other species (2.0 x 10 ) is low enough that no adverse impact would be expected when compared with potential larval production.

Regardless of the source of a disturbance on fish populations, there exists some natural compensatory capacity within that population. Compensation is the capacity of a population to offset, to some extent, reductions in numbers caused by some disturbance such as comercial or sport fisherles or impingement and entrainment (McFadden, 1977). Ricker (1954) stated that the removal of young fish (eggs, larvae and juveniles') is at least partly balanced by the increased survival of the remaining fish. It is possible that fish populations could withstand exploitation by power plants at levels described in sustained comercial and sport fisheries (McFadden,1977). McFadden (1977) cited Kempinger et al., 1975; Ricker, 1954, and LaFaunce et al., 1964 who documented exploitation rates of up to 50% in comercial and sport fisheries. The natural compensation capacity of fish populations in Lake Anna would minimize the impact, if any, of entrainment by North Anna Power Station.

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4.4

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9 TABLE 4.1. SPECIES OF FISH LARVAE EHTRAIHED AT HORTH ANNA POWER STATION HAPCH TO JULY, 1979 OSTEICHTHYES CLUPEIDAE - herrings DOROSONA CEPEDIAHUN giamard shad PERCICHTHYIDAE - temperate basses HOROHE AMERICAMA - white perch CENTRARCHIDAE - sunfishes LEP0HIS SP. - sunfish POtIOXIS HIGROHACULATUS - black crappie PERCIDAE - perches I

PERCA TLAVESCENS yellou perch u.

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) ,1 TABLE 4.2. lAs2ERS Ale X OF LARVAE COLLECTED BY SAllPLE DATES be TOTALS FOR SAttPLE PERIOD SAMPLE PERCA 00ROSonA P0teXIS LEPoll13 HOR 0:4E TOTAL V0ttRIE LARVAE /

DATES FLAVESCEHS CfPEDIANUM HIGRollACULATUS SP. AttERICAllA FILTERED 1000 CteIC CtelC ttEIERS 91E1ERS 110 . 2 HO. X HO. X HD. X 110 . X 79-03-01 0 . 4 . 0 . 0 8 . . 378.7 .

79-03-44 8 . t . e . e . t . . 387.8 .

79-03-15 0 . t . t . e . e . . 280.7 .

79-85-22 0 . 4 . 4 . 4 . t . . 425.5 .

79-03-29 0 . 0 . 4 . 4 . 6 . . 381.2 .

79-04-11 16 ISS.4 4 9.4 8 0.0 0 0.9 e e.9 16 370.4 43.2 79-64-19 1 54.4 0 0.0 0 8.8 0 0.0 1 50.8 t 188.4 6.9 79-44-26 8 4.8 0 0.0 0 8.4 8 4.0 1 100.0 1 355.1 2.8 79-85-83 4 0.0 1 28.0 1 20.0 8 4.8 3 68.4 5 334.4 14.9 79-05-10 1 1.7 34 63.3 2 3.3 e 0.0 19 31.7 68 398.8 150.5 79-85-17 4 4.0 334 97.1 0 0.0 0 0.8 le 2.9 349 392.7 865.8 79-05-24 0 0.0 167 97.1 0 0.8 8 0.0 5 2.9 172 414.9 414.6

, 79-05-31 0 0.0 265 92.7 2 4.7 2 e.7 17 5.9 286 426.3 670.9 79-06-07 0 0.0 223 97.4 4 4.8 6 2.6 0 0.8 229 393.3 582.3 79-66-14 4 4.0 199 77.4 1 8.4 57 22.2 0 4.0 257 428.5 599.4 79-06-21 4 4.4 41 97.6 4 0.0 2 2.4 4 8.8 83 401.2 206.9 4m 79-86-24 0 0.0 53 88.3 e 0.0 7 11.7 0 0.8 40 397.6 158.9 79-07-45 0 0.4 le 54.8 0 0.0 le 50.0 0 0.0 te 411.2 48.6

• 79-87-12 0 0.0 11 57.9 0 0.8 8 42.1 0 0.8 19 417.7 45.5 79-07-19 8 0.0 18 58.1 0 0.0 13 41.9 4 8.0 31 395.8 78.3 79-07-27 0 8.0 1 12.5 0 8.8 7 87.5 0 4.0 4 391.6 28.4 TOTAL IS 1397 6 112 56 1589 ,

r X OF TOTAL 1.1 47.9 4.4 7.8 3.5 l I

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TABLE 4.3 TOTAL LARVAE COLLECTED BY SPECIES AND SAMPLE DEPTH AT HORTH AHHA POWER STATION

! , MARCH TO JULY, 1979 SPCT, HPCT, AND BPCT ARE PERCENTAGES

_ SPECIES SURFACE SPCT HIDDLE HPCT BOTTON BPCT DOROSONA CEPEDIAHUN 408 29 478 34 511 37 i

LEPOHIS SP. 84 75 18 16 to 9 HORONE AMERICAHA 16 29 26 46 14 25 PERCA FLAVESCEHS 15 83 2 11 1 6 I

P0H0XIS HIGROHACULATUS 5 83 1 17 . .

TOTAL s28 . s2s . 536 .

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TABLE 4.4. Total Dorosoma cepedianum entrained by sampie time at North Anna Power Station (March - July 1979).  ;

' Time 0600 1200 1800 2400 Total (yearly)

I Totai 153 357 337 7,0 1,397 1

% of Total 11.0 12.0 24.1 52.9 ,

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TA8tE 4.5. ESTIll4TED LARVAE EHIRAIHED DURIls SAllPLE DATES AT IID4TH Meta PONER STATIoll itARCH TO JULY. 1979.

CLL ADO CLU ARE THE LOWER MB UPPER 95 2 CONFIDEllCE LIMITS OF THE ESTIll4TED CATCl4 CATCH IS IN LARVAE PER 1994 CteIC ltETERS MB VOlisif IS Ill 1400 CUBIC IIETERS DATE 6PECIES CAirlf PLEIPS VOllA1E CLL E STIltATE CLU 794381 880 FISH TAKEN 3.0 3495 794348 HD FISH TAKEH 3.8 3895 796315 HD FISH TAKEli 3.8 3895 798322 440 FISH TAKEN 3.0 3895 798329 440 FISH TAKEH 3.9 3895 796411 PERCA FLAVESCEllS 48.5 5193 4.0 -504.000 252.860 1.089.848 794419 ft0ROHE AttERICAllA 3.5 2.0 2597 -29.000 9.004 47.004 PERCA FLAVESCEllS 3.5 -29.004 9.044 47.000 796424 HORollE MIERICAllA 2.9 4.0 5193 -49.000 35.000 79.000 799503 0000$0814 CEPEDIAlakt 2.4 3.6 4652 -36.000 11.044 59.000 ft0RollE AttERICAHA 8.5 -123.000 40.088 202.000 Poll 0XIS tlIGRotlACULATUS 3.2 -46.883 15.000 75.000 A

- 799518 DOROSaltA CEPEDIAIRAt 97.6 6.9 7799 -389 '

768.000 1.949.004 4.RCHE M.91C,llA 47.i -u ,.000

...e u7.00. 1. m . 0.

PERCA FLAVESCENS 3.3 -82.000 26.000 134.000 l

P0010XIS HIGRollACULATUS j 5.9 -82.004 46.000 173.004  ;

794517 DOR 050HA CEPEDIAIRAt 870.7 4.0 5193 -6.836.098 4.522.000 15.880.000 HORollE AllERICM4A 25.8 -203.000 134.000 471.000 l , 799524 00R050184 CEPEDIAl849 407.2 5193 4.0 -1.098.000 2.114.000 5.319.080 12.2 810ROHE A31ERICMIA -51.000 43.000 178.004 799531 00R050184 CEPEDIMRAI 622.t 5.0 6491 -2.666.000 4.839.088 10.743.000 LEPolt15 SP. 5.0 -60.000 32.008 125.000 ft0RollE AlWRICAHA 42.9 -307.884 279.000 864.000 Poll 0XIS III3R001ACULATUS 4.6 -56.000 38.000 116.000 790607 00R050ttA CEPEDIAIRAI 573.3 3.0 3895 -997.884 2.233.000 5.463.000

, LEPoll1S SP. 17.1 -89.000 67.000 223.048 794614 00R050HA CEPEDIAIAtt 468.1 4.0 5193 -1.620.000 2.389.000 6.399.000 LEP0ftlS SP. 157.1 -953.484 816.000 Poll 0XIS 841GRollACULATUS 2.585.000 2.9 -46.000 15.800 75.000 790621 DOR 050H4 CLPEDIAIA20 264.0 4.0 5193 -1.639.000 1.059.000 3.758.000 LEP0tt13 SP. 4.9 -45.000 25.000 95.000

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O, J TABLE 4.6. Estimate of total larvae entrained (March - July 1978) by species at North Anna Power Station. -

, Estimated Total Entrained Dorosoma cepedianum 1.28 x 108 7

Lepomis sp. 1.09 x 10 6

Morone americana 6.35 x 10 6

Perca flavescens 2.01 x 10 Pomoxis nigromaculatus 7.38 x 10 5 O, # 8 Total 1.48 x 10 j

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References Cochran, W. G. 1963. Sampling Techniques. Wiley & Sons Inc. N. Y.

413 p.

Ecological Analysts, Inc. 1977. A Review of Entrainment Study Methodologies:

Abundance and Survival.

Edwards, T. J., W. H. Hunt and L. L. Olmsted. 1977. Density and Distribution of Larval Shad (Dorosoma spp.) in Lake Norman, North Carolina -

Entrainment at McGuire Nuclear Station. Proceedings of the First Symposium on Freshwater Larval Fish. Ed. by Larry L. Olmsted. pp.

143-158.

Graser, L. F. 1979. Spatio-temporal Distribution of Clupeid Larvae in Barkley Reservoir. Proceedings of the Third Symposium on Larval Fish. Ed. by Robert D. Hoyt. pp. 120-138.

Hardy, J. D. Jr. 1978. Development of Fishes of the Mid-Atlantic Bight.

Volume III. Center for Environmental and Estuarine Studies of the University of Maryland. # 783. V. S. Fish and Wildlife Service.

Jones, P. W., F. D. Martin and J. D. Hardy, Jr. 1978. Development of Fishes of the Mid-Atlantic Bight. Volume 1. Center for Environmental and O Estuarine Studies of the University of Maryland. # 783. U. S. Fish and Wildlife Service.

Lippson, A. J. and M. L. Moran. 1974. Manual for Identification of Early Developmental Stages of Fishes of the Potomac River Estuary.

Martin Marietta Corporation, Baltimore, Maryland. PPSP-MP-13.

282 p.

McFadden, J. T. 1977. An Argument Supporting the Reality of Compensation in Fish Populations and a Plea to let Them Exercise It. Proceedings l of the Conference on Assessing the Effects of Power-Plant-Induced Mortality on Fish Populations. Ed. by Webster Van Winkle.

Pergamon Press. N. Y, pr.,. 153-178.

Ricker, W. E. 1954. Stock and Recruitment. Journal Fish. Board Can.

11:559-623.

4.13

\

Transmission Line Right-of-Way:

Herbicide Management and Erosion Control E. T. S. Sections 3.1.3.1 and 3.1.3.2 5.0

O, NORTH ANNA TRANSMISSION LINFS i ANNUAL ENVIRONMENTAL OPERATING REPORT (SECTION 5.6.1.1) FOR 1979 l

3.1.3.1 Transmission Line Right of Way Herbicide Management No herbicides were used in 1979.

( 3.1.3.2 Transmission Line Right of Way Erosion Control Inspection ps Erosion Inspection on right of way was made on the North Anna -

V, Morrisville, North Anna - Ladysmith, and North Anna - Midlothian 500 KV lines on August 17, 1979. A number of locations were recorded, from aerial patrol, where erosion was taking place

.on the North Anna - Morrisville, and the North Anna - Midlothian lines, and a few places on the North Anna - Ladysmith line. The majority of the locations noted were caused by vehicle travel up and down the right of way. These areas were disced, ferti-lized, seeded, and mulched with additional straw bales being installed to prevent erosion.

(.

O 5.1

O, Onsite Meteorological Monitoring l

E.T.S. Section 3.1.4 1

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- - - - ~ - _. _ ---- . . . . . . _ . . _ _ , , _ _ _ . _ _ _

On Onsite Meteorological Data i

In order to fulfill the requirements of Environmental Technical Specifications 3.1.4 and consistent with the recommendations of Regulatory Guide 1.21. Section C.1 (June 1974) and. Regulatory Guide 1.23 (February 1972),

l I meteorological data are reported for the year 1979. A summary of observa-tions of cooling system impact on local mateorology also is given.

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O VIRGIttIA ELECTRIC 4 POWER Col 1 PANT ENG35021 EHVIRotatENTAL SERVICES 11ETEOGotoGY PAGE 7 O SUtstARY OF 11ETEOROLOGICAL OB5ERVATIONS STATION AtalA SITE 1 ,

CtRRENT DATE 3/18/84 TIFIE 13.02.38 FOR PERIOD 1/1/79 THROUGal 12/31/79 Wits SPEED VER$US DIRECTIDH IIH IAkeER OF HOURLY 08SERVATIONSI g

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I I AT 150.00' ELEVATION I AT 150.00' ELEVATION

. STA81LITY CLA45 E - - af SIGt1A THETA I STABILITY CLASS E - - 8Y DELTA T

' I i O Wits . WIND SPEED tt1PH) I Wits Wile SPEEDil1 PHI l DIR. 1-3 4-7 8-12 13-18 19-24 GT-24 TOTAL I DIR. 1-3 4-7 8-12 13-18 19-24 GT-24 TOTAL

• I I

, telt 18 84 147 44 0 0 293 I te4E 21 40 14 3 0 0 78

! O tat 15 71 75 21 4 0 182 I HE 18 21 19 2 8 4 60 EHE 14 58 41 12 e 0 125 I EHE 12 21 7 1 8 0 41 E 24 69 34 6 3 2 138 I E 15 22 8 1 8 8 46

' ESE 24 99 26 le 3 1 163 I E5E 11 31 8 5 1 0 56 (N SE 13 75 59 13 12 1 173 I SE 8 45 47 15 7 0 122 SSE 4 85 105 15 1 4 218 I SSE 8 65 76 8 8 8 157 S 17 103 176 22 2 0 320 I 5 10 70 104 18 0 0 tot 35W 17 99 224 31 1 0 36 8 I 354 6 72 176 30 0 9 284

. C' SW 17 9) 113 59 9 9 295 I

• SW 8 78 131 60 14 0 287 WSW 17 63 92 42 2 4 236 .I WSH 19 47 46 35 1 8 149 4 14 60 95 75 5 0 249 I W 13 35 53 27 2 0 lie leN 19 76 63 78 53 11 300 I 58N . 14 31% 43 24 3 8 122 Cs im 19 114 10e 47 17 5 sie I tu 22 83 3e 5 2 e 14:

, 68N 24 130 137 51 27 8 377 I tem to 73 41 6 1 0 141 co N 17 92 283 153 15 0 568 I H 25 53 31 .5 0 0 114 TOTAL 273 1305 1766 699 150 28 4301 I TOTAL 232 794 834 245 28 0 2133 HO. OF HOURS OF CALM Wits - 1 I HD. OF HOURS OF CALM WIND - 3 AVERAGE WIte SPEED 9.303 HPH I AVERAGE WIND SPEE0 8.082 #1PH

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O, O, VIRGIll!A ELECTRIC & POWER Cat 1PANY ENG35021 LINIR0letElliAL SERVICES ttETEOROLOGY PAGE 14 O Sutt1ARY OF HETEOROLOGICAL 085tRVATIOllS STATIGH Al#4A SITE 1

, CURRElli DATE 3/18/80 TIME 13.02.39 FOR PERIOD 1/1/79 THROUGt 12/31/79 Wile SPEED VERSUS DIRECTION (IH IAreER OF HOURLY 085ERVATI0t4SS l DELTA-T NOT CONSIDEREO -

O === _

I i AT 33.00' ELEVATIDH I AT 150.00' ELEVATION l

TOTAL 085ERVATIOt45 - - ALL STASILITY CATEGORIES I TOTAL OBSERVATIONS - - ALL STABILITY CATEGORIES O I '

Wits Mlle SPEE0 titPHI I WIta Mite SPEEDINPHI DIR. 1-3 4-7 8-12 13-18 19-24 GT-24 TOTAL I DIR. 1-3 4-7 8-12 13-18 19-24 GT-24 TOTAL I

' O telt 73 194 142 15 0 8 424 I lait 71 199 225 58 1 0 554 taE 68 161 95 4 e e 328 I HE 40 152 lie 26 0 4 358

Elst 73 108 59 12 0 0 252 I EHE 51 125 64 21 1 0 262

- E 49 172 48 8 3 0 328 I E 76 143 54 11 3 2 289 75 207 53 1E 4 1 356 lO ESE SE 112 125 226 308 45 57 13 9 9 0

1 0

393 503 I

I E5E SE 48 17e 106 30 14 1 369 SSE 148 274 56 5 0 0 483 I SSE 21 185 174 36 3 0 419 5 225 463 77 0* 4 4 765 I 5 42 267 333 43 3 J 688

- O 55u 208 508 124 6 e e 446 I~ s5H 42 290 555 107 6 0 1000 SH 126 361 142 8 4 4 637 I SW 45 208 336 146 18 9 753 H5W 100 128 132 22 0 0 382 I HSH 47 123 144 96 3 0 413 W 99 134 108 10 1 0 36 8 I H 46 106 140 86 8 1 387 '

leN 41 153 98 65 23 505 m =O laN 183 273 269 92 134 93 63 to 25 4

5 673 727 I

I iM 67 246 Its 178 78 20 8 597

• 184 231 65 229 182 73 to 8 585 U A' leH 116 114 170 53 62 14 0

2 0

569 784 I ten H 58 224 382 170 16 0 850 H 88 299 335 I O TOTAL 2064 4e48 1816 403 71 - 12 8454 I TOTAL 855 30t7 3171 1995 193 44 8385

,~

- HO. OF HOURS OF CAtlt WIte - 4 I HO. OF HOURS OF CALM Nits - 4 3 HOURS OF tt 551HG DATA - - - 302 I HOURS OF tlI5 SING DATA - - - 371 8.48: ItPH

'o AVERAGE Wile SPEED ---

6.131 HPH

.---LEGEHO----

I AVERAGE WIHO SPEE0 ---

- - - STABILITY GROUPS - - - - - - HIteSPEED GROUP 5 - - -

O STABILITY PASQUILL SIGitA THETA DELTA-T GROUP HIHOSPEED RAtlGE CLASSIFICATION CATEGORIES AHGULAR DEG. DEGREES F PER 1000 FT (NILES PER HOUR)

EXTREllELY UHSTABLE A GE 22.500 LT -18.427 CAtti LESS THAH 0.750 L) a it00ERATELY LMSTABLE 8 17.500 TO 22.499 -10.427 TO -9.334 1-3 0.750 10

• 3.500 I ' C 12.500 TO 17.499 -9.329 TO -8.233 4-7 3.531 TG 7.500 i SLIGITLY LMSTABLE i O

,,,HEUIRAL 0 7.500 TO 12.499 -8.232 TO -t.745 8-12 , 7.501 10 12.500 l ,

I l -2.744 TO +8.231 13-18 12.501 TO 18.500

, SLIGITLY STABLE E 3.750 TO 7.499

1. 100ERATELY STABLE F t.100 TO 3.749 +8.232 TO 421.*50 19-24 18.501 TO 24.000 EXTREttELY STABLE G LT t.100 GE +21.951 GT-24 GREATER THAff 24.000

! 5 NOTE...tll DELTA-T IS A POSITIVE TAR 1BER 6atEN THE l TONER TOP TEttP. IS HIGHER THAN THE BOTTON TEMP.

j' O (t) DELTA-T OSS CONVERTED TO STAHOARO 8Y OBS X (1000/ DELTA HEIGHTl

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I Observation of cooling system impact on local meteorology were obtained during 1979 in accordance with E.T.S. Section 3.1.4. Comparison

~

of onsite conditions and areas removed from the immediate locale were employed to separate station related effects from generalized meteorological conditions. Results indicate negligible adverse effect in the vicinity of the Waste. Heat Treatment Facility.

O..

O

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l 6.18

Q.

Chemical Inventory E.T.S. Section 4.1 Os l

O 7.0

- . . . ..

• m ,

" " " " " -' y ,,, , ____ _

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The data tabulated below with accompanying rationale is intended to meet the requirement of the ETS Section 4.1-Chemical Inventory for the period January 1, 1979 - December 31, 1979:

4.1.a Chemicals Tabulated from Operating Data 4.1.a.1 Type of Discharge - Baron and Chromate Analysis for Boron and Chromate are performed on the Clarifier Monthly composite sample obtained by Health l Physics. The analysis indicate zero (0) pounds of chromate discharged for the reporting period. The Baron discharge data follows:

Discharge Date Time Duration Pounds No.* Baron as B N-79-1 2-4-79 1415 Jan. 1979 Composite 198.5 N-79-2 3-2-79 0800 Feb.1979 Composite 118.6 N-79-3 4-1-79 -- Mar.1979 Composite 291.1 N-79-4 5-1-79 -- Apr. 1979 Composite 33.6 N-79-5 6-1-79 --

May 1979 Composite 203.8 N-79-6 -- --

June 1979 Composite 499**

N-79-7 8-1-79 1100 July 1979 Composite 113.6 N-79-8 9-10-79 1430 Aug, 1979 Composite 435 N-79-9 10-3-79 0100 Sept.1979 Composite 474 O N-79-10 N-79-ll 11-2-79 12-1-79 1100 0830 Oct. 1979 Composite Nov. 1979 Composite 492 499 L N-79-12 1-4-80 1200 Dec. 1979 Composite 53.9

• Discharge Numbers Assigned for Convenience

• • Estimated Data, Analysis Not Performed 4.1.a.2 Type of Discharge - Ammonia and Hydrazine Discharges of Ammonia and Hydrazine to the aquatic environment are difficult to quantify. Since Hydrazine reacts with oxygen to give essentially ammonia and since amonia is also discharged to the atmosphere, the basis for discharge is an estimated maximum value based on specifications From WCAP 8113. Rev.1, January 1975, Figure 7-19, a pH of 9.0 corresponds to an amonia concentration of 0.25 PPM Therefore:

Estimated maximum blowdown for three steam generators =

60 GPM x 60 Min /Hr. x 24 Hr./ day x 270 days = 23.3 x 106 gallons.

Pounds of Ammonia = 8.337 x 10-6 x volume x PPM NH3 Pounds of Amonia = 8.337 x 10-6 x 23.3 x 106 x 0.25 Pounds of Amonia discharged for 1979 = 49 pounds as NH3 7.1

l O, 4.i.b Ch-iois Taeuiated fr- Station inventory and Operatino aecords

~

Chemicals (as used) Date Received Quantity System 4.1.b.1 Calgon CL-14 1-3-79 500 gals. Service Water Calgon CL-14 1-3-79 2000 gals. Bearing Cooling l Calgon CL-14 1-29-79 2500 gals. Bearing Cooling Calgon CL-14 3-5-79 2000 gals. Bearing Cooling Calgon CL-14 3-5-79 1000 gals. Service Water Calgon CL-14 3-14-79 2500 gals. Bearing Cooling Calgon CL-14 3-27-79 2500 gals. Bearing Cooling i Calgon CL-14 5-30-79 2500 gals. Bearing Cooling Calgon CL-14 6-18-79 2500 gals. Bearing Cooling 4.1.b.2 Lime 2-7-79 2000 lbs. Sewage Treatment 4.1.b.3 Sodium Hypochlorite 1-16-79 1000 gals. Service Water (15%)

Sodium Hypochlorite 2-28-79 500 gals. Service Water (15%)

Sodium Hypochlorite 5-1-79 500 gals. Service Water (15%)

Sodium Hypochlorite 5-1-79 1000 gals. Bearing Cooling (15%)

Sodium Hypochlorite 12-5-79 2000 gals Service Water l (15%)

Sodium Hypochlorite 1979 Total 1200 gals Sewage Treatment (15%)

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4.i b.4 Caicium Hypoc*iorite 8-i3-79 (HTH) 1200 ibs. Bearias Cooiins

• • • 4.1.b.5SulfuricAcid(66*Be)2-16-79 1200 gals. Sec. Demineralizer

• • • 4.1.b.6 Sodium Hydroxide 4-2-79 1100 gals. Sec. Demineralizer (25%)

Sodium Hydroxide 6-22-79 1100 gals Sec. Demineralizer (25%)

4.1.b.7 Alum 7-25-79 2500 lbs. Temporary Settling Pond Alum 8-29-79 2500 lbs Temporary Settling Pond 4.1.b.8 Calgon CS 8-28-79 400 lbs Emergency Diesel Cooling System

• • • Neutralized before discharge actually discharged as Sodium Sulfate 4.1.c Not addressed 1

7.2

./

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