To: Interested Parties

From: Environmental Services Division

RE: April 2008 monthly Water Quality Report

The Environmental Services Field Offices conducted water quality monitoring in the Sabine Basin from April 7th through the 9th. The results of the field monitoring are presented in this report and additional laboratory results will be included in the annual Sabine Basin Water Quality Report.

 

Sabine Basin Tidal (Including Tributaries)

 

Weather - Weather conditions in the Tidal Basin were warm with highs from the low 60s to the low 80s. Low temperatures ranged from the low 50s to the low 70s. The Tidal stations received 0.52 inches of rainfall in the seven days prior to the sampling event. 

Tidal Conditions - Surface salinities were not found at any of the Tidal stations. The largest salinity value, 1.92 ppt, was found at Sabine River station SRT1B at 8.5 meters.  This was the only salinity value measured greater than 1 ppt.

Lower Sabine Basin (Toledo Bend Reservoir and Below)

 

Weather - Weather conditions in the Lower Basin were mild with highs from the upper 50s to the low 80s. Low temperatures ranged from the upper 30s to mid 60s. Toledo Bend received 1.31 inches of rainfall during the seven days prior to the sampling event.  Heavy rainfall occurred upstream of the reservoir in the weeks prior to the sampling event. This influx of water flowing into the reservoir necessitated releases through the spillway gates, as well as, the power generators.

Lake Level - The level of Toledo Bend Reservoir was recorded at 172.87 feet with 38,194 cfs discharge at the time of sampling. Toledo Bend has a conservation pool level of 172ft msl. Reservoir profiles indicated some stratification of the water column.

 

Upper Sabine Basin (Lake Tawakoni, Lake Fork Reservoir, and the River Above Toledo Bend)

Weather - Recent weather (previous seven days) in the Sabine River Basin was mild, with daytime highs in the low 60s to low 80s with lows in the low 40s to mid 60s at Lake Tawakoni and at Lake Fork. Lake Tawakoni received 0.72 inches of rain and Lake Fork received 1.02 inches of rain the week preceding the sample run.

Lake Level - The level of Lake Tawakoni was 438.11 feet msl with a 660 cfs release and the level of Lake Fork was 402.83 feet msl with a 8 cfs release at the time of sampling. Lake Tawakoni and Lake Fork have conservation pool levels of 437.5 msl and 403 msl, respectively. Reservoir profiles indicated thermal mixing of the water column at Lake Tawakoni and Lake Fork.

 

This Report and additional data for these monitoring stations are available on our World Wide Web site (www.sratx.org). If you have any questions or comments concerning this report, please contact:

 

 

  Miles Hall, Environmental Services Division Manager
409-746-3284 (mhall@sratx.org)

  Lower and Tidal Sabine Basin
Jerry Wiegreffe, Lower Basin Field Office Coordinator
409-746-3284 (jwiegreffe@sratx.org)

  Upper Sabine Basin
Terry Wilson, Upper Basin Field Office Coordinator
903-878-2420 (twilson@sratx.org)


 

 

SABINE RIVER AUTHORITY OF TEXAS

Monthly Water Quality Report

 

Table of Contents

Fixed Monitoring Stations. 4

Segment 0501 Sabine River Tidal 5

Segment 0502 - Sabine River Above Tidal 7

Segment 0503 - Sabine River Above Caney Creek. 8

Segment 0504 Toledo Bend Reservoir. 9

Segment 0505 - Sabine River Above Toledo Bend Reservoir. 13

Segment 0506 - Sabine River Below Lake Tawakoni 14

Segment 0507 - Lake Tawakoni 18

 

 

Table of Figures

Sabine Basin Map. 3

Segment 0501. 6

Segment 0502. 7

Segment 0503. 8

Toledo Bend Reservoir Profiles. 11

Segment 0504. 12

Segment 0505. 13

Lake Fork Reservoir Profiles. 15

Segment 0506. 17

Lake Tawakoni Profiles. 18

Segment 0507. 20

 


 
Sabine Basin Map

 

 


Fixed Monitoring Stations

Segment

Station

TCEQ ID (SRA-TX ID

Location

501

10391 (SRT1)

SABINE RIVER AT CHANNEL CAN 3

501

15654 (BB1)

BLACK BAYOU IN CAMERON PARISH

501

10393 (SRT1A)

SABINE RIVER AT CHANNEL LIGHT 13

501

18055 (SRT1B)

SABINE RIVER AT CHANNEL LIGHT 20

501

15653 (ICW1)

INTERCOASTAL WATERWAY AT PERRY RIDGE

501

18056 (SRT1C)

OLD HWY 90

501

10394 (SRT2)

SABINE RIVER AT IH 10

501

10395 (SR1)

SABINE RIVER 12.00 KM UPSTREAM OF IH 10

502

10397 (SR2)

SABINE RIVER AT SH 12 NORTH OF DEWEYVILLE TX.

513

10465 (BCC1)

BIG COW CREEK AT FM 1416 SOUTH OF BON WIER

503

10398 (SR3)

SABINE RIVER AT US 190 EAST OF BON WIER TX.

503

10340 (BA4)

ANACOCO BAYOU AT LOUISIANA HWY 111 CROSSING SOUTHWEST OF KNIGHT LA

503

10399 (SR5)

SABINE RIVER AT SH 63 EAST OF BURKEVILLE TX.

503

10401 (TB6S)

SABINE RIVER BELOW TOLEDO BEND RESERVOIR AT RIGHT ABUTMENT OF SPILLWAY FOR DAM

503

15660 (BT1)

BAYOU TORO AT LA SH 392 IN SABINE PARISH SW OF HORNBECK LA

504

10404 (TB6A)

TOLEDO BEND RESERVOIR MAIN LAKE ABOVE THE DAM AT THE OLD RIVER CHANNEL

504

10407 (TB6CN)

TOLEDO BEND RESERVOIR IN SIX MILE BOAT LANE AT SH87

504

18054 (TB6Q)

TOLEDO BEND RESERVOIR IN NEGREET BAYOU

504

10411 (TB6F)

TOLEDO BEND RESERVOIR IN SUNSHINE BAY NEAR FM3121 BRIDGE

504

10402 (TB6H)

TOLEDO BEND RESERVOIR AT SH 21 NORTHEAST OF MILAM

504

15659 (TB6K)

TOLEDO BEND RESERVOIR IN LANANA BAYOU AT LOUISIANA SH 191 IN SABINE PARISH LOUISIANA WEST OF MANY

504

15655 (TB6J)

TOLEDO BEND RESERVOIR PATROON BAYOU BRANCH AT FM 276

504

18053 (TB6LN)

TOLEDO BEND RESERVOIR SAN MIGUEL ARM BOAT LANE

504

18052 (TB6R)

TOLEDO BEND RESERVOIR AT RAGTOWN

504

10403 (TB8)

TOLEDO BEND RESERVOIR AT US 84 NEAR LOGANSPORT LA

505

10415 (SR10)

SABINE RIVER AT FM 2517

505

13628 (SR11)

SABINE RIVER AT US 59

505

10423 (SR14)

SABINE RIVER AT SH 149

505

10426 (SR15)

SABINE RIVER AT US 259

505

10427 (SR16)

SABINE RIVER AT SH 42

506

10428 (SR17)

SABINE RIVER AT US 271

506

10429 (SR19)

SABINE RIVER AT SH 14 S. OF HAWKINS

506

10430 (SR21)

SABINE RIVER AT US 69

506

17065 (SR22)

SABINE RIVER AT FM 17

514

16011 (BS9)

BIG SANDY CREEK AT WHITE OAK ROAD

515

10469 (LF20)

LAKE FORK CREEK AT US 80

512

10458 (LF2)

LAKE FORK RESERVOIR NEAR DAM IN CREEK CHANNEL

512

10462 (LF4)

LAKE FORK RESERVOIR MID-COVE IN LAKE FORK CREEK ARM AT FM515

512

10461 (LF3)

LAKE FORK RESERVOIR MID-ARM IN CANEY CREEK ARM AT FM 515

507

10434 (LT23A)

LAKE TAWAKONI IN THE MAIN LAKE NEAR THE DAM

507

10435 (LT23D)

LAKE TAWAKONI IN KITSEE INLET NEAR WHITE POINT CAUSEWAY

507

10440 (LT23C)

LAKE TAWAKONI NEAR WIND POINT PARK


Segment 0501 Sabine River Tidal

Description: The designated segment includes the Sabine River from the confluence with Sabine Lake in Orange County to West Bluff in Orange County. Although some areas are quite rural, this part of the Sabine Basin has two cities with populations greater than 5,000 and a variety of industries.

 

Sampling Conditions: The Tidal stations received 0.52 inches of rainfall in the seven days prior to the sample event.  Surface salinities were not found at any of the Tidal stations.  The largest salinity value, 1.92 ppt, was found at Sabine River station SRT1B at 8.5 meters.  Strong downstream flows were noted at each of the river sites in the Tidal Basin. Heavy activity along underground pipeline construction was also noted along the lower portion of the Tidal Basin.

Segment 0501 Water Quality with Profiles

Date and Time

Station

Depth

Temp

pH

DO

% Sat

Cond

TDS

Salinity

Secchi

Turbidity

E.coli

Enterococcus

 

 

meters

C

SU

mg/L

 

S/cm

mg/L

ppt

meters

NTU

mpn/ 100mL

mpn/ 100mL

4/9/2008 10:37

10391(SRT1)

0.3

21.0

6.75

6.74

76

160

102

<1

0.28

28.2

225

32

 

 

2.5

21.0

6.70

6.72

75

159

102

<1

 

 

 

 

 

 

4.6

20.9

6.66

6.67

75

159

102

<1

 

 

 

 

4/9/2008 10:50

15654(BB1)

0.3

21.4

6.78

6.40

72

335

215

<1

0.27

28.4

155

36

 

 

1.30

21.4

6.78

6.40

72

339

213

<1

 

 

 

 

 

 

3.3

21.4

6.75

6.38

72

338

216

<1

 

 

 

 

4/9/2008 10:24

10393(SRT1A)

0.3

20.8

6.72

6.54

73

160

102

<1

0.25

41.6

345

45

 

 

2.3

20.8

6.75

6.52

73

160

102

<1

 

 

 

 

 

 

5.0

20.8

6.71

6.5

73

159

102

<1

 

 

 

 

 

 

10.2

20.8

6.66

6.43

72

160

102

<1

 

 

 

 

4/9/2008 10:15

18055(SRT1B)

0.3

20.9

6.75

6.46

72

156

100

<1

0.37

23.3

194

37

 

 

2.0

20.9

6.72

6.41

72

156

100

<1

 

 

 

 

 

 

4.59

20.9

6.67

6.35

71

156

100

<1

 

 

 

 

 

 

8.5

20.8

6.92

5.72

65

2,994

1,916

1.92

 

 

 

 

4/9/2008 10:00

15653(ICW1)

0.3

21.4

6.73

6.33

72

182

117

<1

0.34

20.1

365

88

 

 

2.5

21.3

6.69

6.27

71

183

117

<1

 

 

 

 

 

 

4.39

21.3

6.65

6.26

71

183

117

<1

 

 

 

 

4/9/2008 9:46

18056(SRT1C)

0.3

20.6

6.71

6.34

71

153

98

<1

0.37

26.3

276

55

 

 

1.5

20.6

6.69

6.3

70

153

98

<1

 

 

 

 

 

 

5.0

20.6

6.65

6.27

70

154

99

<1

 

 

 

 

 

 

9.4

20.6

6.59

6.21

69

154

99

<1

 

 

 

 

4/9/2008 9:30

10394(SRT2)

0.3

20.6

6.70

6.39

71

153

98

<1

0.34

22.8

206

46

 

 

3.0

20.6

6.65

6.37

71

153

98

<1

 

 

 

 

 

 

8.0

20.6

6.61

6.29

70

153

98

<1

 

 

 

 

4/9/2008 9:00

10395(SR1)

0.3

20.4

6.70

6.62

73

156

100

<1

0.42

18.6

122

NM

NM = Not Measured


Segment 0501


Segment 0502 - Sabine River Above Tidal

Description: The designated segment includes the Sabine River from West Bluff in Orange County to the confluence with Caney Creek in Newton County. The largest tributary is Big Cow Creek (Segment 0513). This is largely a rural area with no major industries or cities.

Segment 0513 Big Cow Creek from the confluence with the Sabine River in Newton County to a point 4.6 kilometers (2.9 miles) upstream of R 255 in Newton County.

Sampling Conditions: Higher than normal flows were noted at each site in this segment due to recent upstream heavy rainfall and releases from Toledo Bend. The USGS recorded flow at Sabine River station SR2 was 26,600 cfs.

Segment 0502 Water Quality

Date and Time

Station

Depth

Temp

pH

DO

% Sat

Cond

TDS

Secchi

Turbidity

E.coli

meters

C

SU

mg/L

S/cm

mg/L

meters

NTU

mpn/100mL

4/8/2008 8:37

10397(SR2)

0.3

19.1

6.80

7.18

78

152

97

0.37

20.6

146

Segment 0513

 

 

 

 

 

 

 

 

 

 

4/8/2008 9:13

10465(BCC1)

0.3

19.1

6.40

7.92

86

49

31

0.30

26.5

185

Segment 0502


Segment 0503 - Sabine River Above Caney Creek

Description: The designated segment includes the Sabine River from a point immediately upstream of the confluence with Caney Creek in Newton County up to Toledo Bend Dam in Newton County. This is largely a rural area with no major cities and few industries. The two major tributaries include Bayou Anacoco and Bayou Toro that flow from Louisiana.

Sampling Conditions: Higher than normal flows were noted at each site in this segment due to recent upstream heavy rainfall and releases from Toledo Bend. All eleven spillway gates were open two foot and both generators were operating twenty-four hours a day, sevens days a week at the time of sampling. The USGS recorded flow at Sabine River station SR3 was 42,400 cfs and the USGS flow at Sabine River station SR5 was 40,900 cfs.

Segment 0503 Water Quality

Date and Time

Station

Depth

Temp

pH

DO

% Sat

Cond

TDS

Secchi

Turbidity

E.coli

meters

C

SU

mg/L

S/cm

mg/L

meters

NTU

mpn/100mL

4/8/2008 11:00

10398(SR3)

0.3

18.6

7.25

8.81

94

162

104

0.25

32.5

19

4/8/2008 10:30

10340(BA4)

0.3

20.8

7.23

5.14

57

297

190

0.16

57.4

73

4/8/2008 10:08

10399(SR5)

0.3

18.4

7.46

9.5

102

162

104

0.89

4.28

9

4/7/2008 13:43

10401(TB6S)

0.3

19.7

7.84

8.8

95

147

94

>1.2

15.4

4

4/7/2008 13:05

15660(BT1)

0.3

17.3

6.49

7.6

78

57

37

0.13

74.5

579

NM= Not Measured

Segment 0503


Segment 0504 Toledo Bend Reservoir

Description: The designated segment includes the Sabine River from Toledo Bend Dam in Newton County to a point immediately upstream of the confluence of Murvaul Creek in Panola County. Although this area is largely rural, it includes two cities with populations greater than 5,000. Murvaul Creek is a major tributary that enters upstream from the reservoir.

Sampling Conditions: Toledo Bend received 1.31 inches of rainfall during the week prior to sampling.  The level of Toledo Bend Reservoir was recorded at 172.87 feet with 38,194 cfs discharge at the time of sampling.  Heavy rainfall occurred upstream of the reservoir in the weeks prior to the sampling event. This influx of water flowing into the reservoir necessitated releases through the spillway gates, as well as, the power generators. All eleven spillway gates were open two foot and both generators were operating twenty-four hours a day, seven days a week at the time of sampling. Reservoir profiles indicated some thermal stratification of the water column.  Anoxic conditions were found at one lake site at its deepest depths.

Segment 0504 Water Quality with Profiles

Date and Time

Station

Depth

Temp

pH

DO

% Sat

Cond

TDS

Secchi

Turbidity

E.coli

meters

C

SU

mg/L

S/cm

mg/L

meters

NTU

mpn/100mL

4/7/2008 13:53

10404(TB6A)

0.3

20

7.82

9.85

108

164

105

2.21

2.88

<1

 

 

1.3

19.1

7.8

9.83

106

163

104

 

 

 

 

 

4.0

18

7.74

9.74

103

163

104

 

 

 

 

 

8.7

17.8

7.42

9.2

97

163

104

 

 

 

 

 

13.5

16.1

7.01

7.62

77

164

105

 

 

 

 

 

15.9

15

6.86

6.35

63

165

106

 

 

 

 

 

23.8

13.9

6.76

5.36

52

165

105

 

 

 

 

 

25.3

13.4

6.74

3.67

35

169

108

 

 

 

4/7/2008 9:45

10407(TB6CN)

0.3

21

7.34

8.02

90

131

84

1.13

4.34

1

 

 

1.0

21

6.99

7.77

87

131

84

 

 

 

 

 

3.0

20

6.67

6.06

67

123

79

 

 

 

 

 

6.0

19.5

6.54

5.1

54

122

78

 

 

 

 

 

7.1

19.5

6.55

0.77

8

139

90

 

 

 

4/7/2008 12:52

18054(TB6Q)

0.3

21.3

8.03

10.2

115

152

97

0.7

7.3

3

 

 

1.3

19.8

7.86

9.88

109

160

102

 

 

 

 

 

4.7

18.8

7.01

7.08

77

145

93

 

 

 

 

 

8.9

18.1

6.91

5.42

57

157

101

 

 

 

4/7/2008 10:59

10411(TB6F)

0.3

21.6

6.89

5.88

66

43

27

0.27

54.5

29

 

 

1.0

20.2

6.24

5.15

57

44

28

 

 

 

 

 

3.0

18.7

6.26

4.74

51

54

35

 

 

 

 

 

5.0

17.9

6.23

4.70

50

61

29

 

 

 

 

 

6.0

17.9

6.24

4.30

46

61

39

 

 

 


Segment 0504 Water Quality with Profiles Continued

 

Date and Time

Station

Depth

Temp

pH

DO

% Sat

Cond

TDS

Secchi

Turbidity

E.coli

meters

C

SU

mg/L

S/cm

mg/L

meters

NTU

mpn/100mL

4/7/2008 10:30

10402(TB6H)

0.3

19.5

7.15

8.34

91

159

101

0.42

20.7

9

 

 

1.3

18.7

7.07

7.98

86

165

106

 

 

 

 

 

3.0

18.5

7.01

7.50

80

162

103

 

 

 

 

 

6.0

18.5

7.01

7.50

80

168

108

 

 

 

 

 

11.0

18.5

6.98

7.25

77

159

102

 

 

 

 

 

16.6

18.3

6.82

6.44

70

153

98

 

 

 

 

 

21.8

17.4

6.76

3.80

40

173

110

 

 

 

4/7/2008 12:13

15659(TB6K)

0.3

22.1

6.95

6.39

73

64

41

0.36

29.2

22

 

 

1.0

20.9

6.56

5.8

66

65

41

 

 

 

 

 

3.5

18.7

6.7

5.81

63

115

74

 

 

 

 

 

7.0

18.6

6.63

4.95

54

124

80

 

 

 

 

 

9.0

18.1

6.62

3.38

36

152

98

 

 

 

 

 

10.1

18.2

6.62

2.66

28

154

99

 

 

 

39545.57361

15655(TB6J)

0.3

20.7

6.74

6.7

74

35

23

0.15

129

52

 

 

1.0

19.9

6.16

5.64

62

40

27

 

 

 

 

 

2.0

19.6

6.12

5.48

57

52

33

 

 

 

 

 

4.0

17.7

6.06

4.87

51

61

39

 

 

 

 

 

5.2

17.5

6.09

4.81

50

61

38

 

 

 

4/7/2008 12:06

18053(TB6LN)

0.3

21.4

6.42

6.45

73

60

38

0.33

24

2

 

 

1.3

19.6

6.22

4.80

53

47

30

 

 

 

 

 

3.4

19.4

6.17

4.48

49

47

30

 

 

 

 

 

6.3

19.3

6.29

4.30

47

59

38

 

 

 

4/7/2008 9:22

18052(TB6R)

0.3

20

7.39

8.91

98

177

114

0.5

14.3

2

 

 

1.5

19.6

7.26

8.3

91

177

114

 

 

 

 

 

4.1

19.4

7.19

7.88

86

180

114

 

 

 

 

 

8.1

19.2

7.13

7.46

81

183

117

 

 

 

 

 

13.8

19.1

7.09

7.18

77

185

119

 

 

 

4/7/2008 11:15

10403(TB8)

0.3

19.8

6.75

4.81

53

153

97

0.49

15.7

65

 

 

1.5

19.8

6.76

4.86

54

153

98

 

 

 

 

 

2.7

19.8

6.77

4.88

54

153

98

 

 

 


Toledo Bend Reservoir Profiles

 

 

TOLEDO BEND RESERVOIR MAIN LAKE ABOVE THE DAM AT THE OLD RIVER CHANNEL

 

TOLEDO BEND RESERVOIR AT SH 21 NORTHEAST OF MILAM

 

TOLEDO BEND RESERVOIR AT RAGTOWN


Segment 0504


Segment 0505 - Sabine River Above Toledo Bend Reservoir

Description: The designated segment includes the Sabine River from a point immediately upstream of the confluence of Murvaul Creek in Panola County to a point 100 meters (110 yards) downstream of US 271 in Gregg County. Segment 0505 is used extensively for water supply and contains the highest concentration of population in the Sabine Basin. The area includes a large section of the East Texas Oilfield as well as numerous industries.

Sampling Conditions: The (USGS recorded) flow at Sabine River Station SR11 was 12,700 cfs and Sabine River Station SR14 had a flow of 9240 cfs. Increased flows observed at all sites.

Segment 0505 Water Quality

 

Date and Time

Station

Temp

pH

DO

% Sat

Cond

TDS

Secchi

Turbidity

E.coli

C

SU

mg/L

S/cm

mg/L

meters

NTU

mpn/100mL

4/9/08 10:43

10415(SR10)

19.7

6.92

5.32

59

184

118

0.36

19.5

63

4/9/08 9:53

13628(SR11)

19.5

6.96

5.54

61

191

122

0.35

21.8

47

4/9/08 8:36

10423(SR14)

19

7.01

5.71

62

196

126

0.72

11.1

38

4/9/08 8:12

10426(SR15)

18.6

7.05

6.09

66

194

125

0.68

11

23

4/9/08 7.43

10427(SR16)

18.6

7.04

6.08

66

194

124

0.65

11

17

 

Segment 0505


Segment 0506 - Sabine River Below Lake Tawakoni

Description: The designated segment includes the Sabine River from a point 100 meters (110 yards) downstream of US 271 in Gregg County to Iron Bridge Dam in Rains County. This is a largely rural area, but historically numerous dairies were located in the watershed. The major tributaries include:

Segment 0514 - Big Sandy Creek from the confluence with the Sabine River in Upshur County to a point 2.6 kilometers (1.6 miles) upstream of SH 11 in Hopkins County.

Segment 0515 - Lake Fork Creek from the confluence with the Sabine River in Wood County to Lake Fork Dam in Wood County.

Segment 0512 - Lake Fork Reservoir from Lake Fork Dam in Wood County up to the normal pool elevation of 403 feet.

Sampling Conditions: Lake Fork recorded 1.02 inches of rain the preceding seven days prior to sampling. The level of Lake Fork was 402.83 feet msl with a 8 cfs release at the time of sampling. Reservoir profiles indicated thermal mixing of the water column. The USGS recorded flows were 7240 cfs at Sabine River Station SR17, 6070 cfs at Sabine River Station SR19 and 2630 cfs at Sabine River Station SR21. Segments 0506, 0514 and 0515 had increased flows.

Segment 0506 Water Quality with Profiles

Date and Time

Station

Depth

Temp

pH

DO

% Sat

Cond

TDS

Secchi

Turbidity

E.coli

meters

C

SU

mg/L

S/cm

mg/L

meters

NTU

mpn/100mL

4/9/08 7:20

10428(SR17)

0.3

18.6

7.04

6.01

65

196

125

0.78

9.98

50

4/8/08 13:56

10429(SR19)

0.3

18.6

7.08

6.14

67

204

131

0.74

10.6

49

4/8/08 13:04

10430(SR21)

0.3

18.8

7.2

6.54

71

213

136

0.44

19.1

56

4/8/08 12:30

17065(SR22)

0.3

18.4

7.35

7.01

76

201

129

0.41

20.6

76

Segment 0514

 

 

 

 

 

 

 

 

 

 

4/9/08 6:38

16011(BS9)

0.3

20.3

6.62

6.53

73

163

104

0.36

24

425

Segment 0515

 

 

 

 

 

 

 

 

 

 

4/8/08 13:31

10469(LF20)

0.3

19

6.93

6.5

71

187

119

1.2

4.42

101

Segment 0512

 

 

 

 

 

 

 

 

 

 

4/8/08 7:26

10458(LF2)

0.3

16

7.59

9.16

94

176

113

1.67

2.86

3

 

 

1.3

16

7.59

9.13

94

175

112

 

 

 

 

 

2.3

15.9

7.58

9.11

94

175

112

 

 

 

 

 

5.64

15.9

7.55

8.97

92

175

112

 

 

 

 

 

8.92

15.9

7.45

8.59

88

175

112

 

 

 

 

 

11.5

15.6

7.35

8.1

83

176

112

 

 

 

 

 

15.6

15.1

7.13

6.27

63

177

113

 

 

 

 

 

17.7

15

7.16

5.4

54

178

114

 

 

 

4/8/08 8:26

10462(LF4)

0.3

17.4

7.56

9.14

97

172

110

0.85

7.49

1

 

 

1.3

17.4

7.57

9.11

96

172

110

 

 

 

 

 

2

17.4

7.56

9.09

96

172

110

 

 

 

 

 

3.72

17.4

7.54

9.03

96

172

110

 

 

 

 

 

6

17.2

7.39

8.57

91

171

109

 

 

 

 

 

7.9

17

7.29

8.18

86

169

108

 

 

 

 

 

9.38

16.7

7.18

7.59

79

167

107

 

 

 

 

 

11

16.6

7.15

7.48

78

165

106

 

 

 

 

 

 

 

 

Segment 0506 Water Quality with Profiles Continued

 

 

Date and Time

Station

Depth

Temp

pH

DO

% Sat

Cond

TDS

Secchi

Turbidity

E.coli

meters

C

SU

mg/L

S/cm

mg/L

meters

NTU

mpn/100mL

4/8/08 8:03

10461(LF3)

0.3

18

7.4

8.62

92

166

106

0.85

6.97

15

 

 

1.3

18

7.4

8.58

92

166

106

 

 

 

 

 

2.17

17.9

7.39

8.51

91

166

106

 

 

 

 

 

3.99

17.9

7.34

8.29

89

165

106

 

 

 

 

 

5.57

17.8

7.26

8.12

87

166

106

 

 

 

 

 

6.32

17.4

7.07

6.96

73

159

101

 

 

 

 

 

7.54

17

6.9

5.48

58

155

99

 

 

 

 

 

9.67

17

6.89

5.34

56

156

100

 

 

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lake Fork Reservoir Profiles

LAKE FORK RESERVOIR NEAR DAM IN CREEK CHANNEL

LAKE FORK RESERVOIR MID-COVE IN LAKE FORK CREEK ARM AT FM515

LAKE FORK RESERVOIR MID-ARM IN CANEY CREEK ARM AT FM 515
Segment 0506


Segment 0507 - Lake Tawakoni

Description: The designated segment includes the impounded Sabine River from Iron Bridge Dam in Rains County up to the normal pool elevation of 437.5 feet. Although much of this segment is rural, it contains one of the four largest cities in the Sabine Basin.

Sampling Conditions: Lake Tawakoni received 0.72 inches of rain the preceding seven days prior to sampling. The level of Lake Tawakoni was 438.11 feet msl with a 660 cfs release at the time of sampling. Reservoir profiles indicated thermal mixing of the water column. Observed increased turbidity levels at sites LT23D and LT23C from wind and wave action.

 

Segment 0507 Water Quality with Lake Tawakoni Profiles

Date and Time

Station

Depth

Temp

pH

DO

% Sat

Cond

TDS

Secchi

Turbidity

E.coli

meters

C

SU

mg/L

S/cm

mg/L

meters

NTU

mpn/100mL

4/8/08 09:19

10434(LT23A)

0.3

16

7.9

8.81

91

192

123

0.9

7.86

1

 

 

1.3

16

7.89

8.79

90

192

123

 

 

 

 

 

2.92

16

7.89

8.76

90

192

123

 

 

 

 

 

4.65

16

7.89

8.71

90

192

123

 

 

 

 

 

7.22

15.9

7.87

8.62

89

192

123

 

 

 

 

 

9

15.9

7.88

8.59

88

192

123

 

 

 

 

 

10.7

15.9

7.84

8.4

86

192

123

 

 

 

 

 

12.6

15.7

7.77

7.86

81

192

123

 

 

 

 

 

15.6

15.4

7.58

6.01

63

193

123

 

 

 

4/8/08 10:11

10435(LT23D)

0.3

18.7

7.58

7.63

83

162

104

0.15

82.8

11

 

 

1.3

18.3

7.55

7.46

80

168

108

 

 

 

 

 

2

18.4

7.55

7.43

80

168

108

 

 

 

 

 

3.88

18.1

7.51

7.13

77

168

107

 

 

 

 

 

5.38

18.1

7.5

7.05

76

171

110

 

 

 

 

 

6.72

17.2

7.41

6.32

67

179

115

 

 

 

4/8/08 11:08

10440(LT23C)

0.3

19.2

7.87

8.54

94

175

112

0.24

37.2

45

 

 

1.3

19.1

7.88

8.48

93

174

112

 

 

 

 

 

2.48

19.1

7.88

8.49

93

175

112

 

 

 

 

 

3.44

19.3

7.85

8.4

92

174

111

 

 

 

 


Lake Tawakoni Reservoir Profiles

LAKE TAWAKONI IN THE MAIN LAKE NEAR THE DAM

LAKE TAWAKONI IN KITSEE INLET NEAR WHITE POINT CAUSEWAY

LAKE TAWAKONI NEAR WIND POINT PARK
Segment 0507