To: Interested Parties

From: Environmental Services Division

RE: September 2009 monthly Water Quality Report

The Environmental Services Field Offices conducted water quality monitoring in the Sabine Basin from September 14th through 16th. 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)

Beginning with the September sampling two new sites were added in the Tidal basin. One site has been added in Cow Bayou (CB1) and the other in Adams Bayou (AB2). These sites will take the place of the river sites above each bayou (SRT1A, and SRT1B). The bayou sites were added to monitor the progress of the OC TMDL implementation plan.

Weather - Weather conditions in the Tidal Basin were with warm with high temperatures from the mid 70s to mid 80s. Low temperatures ranged from upper 60s to mid 70s. The Tidal stations received 2.09 inches of rainfall in the seven days prior to the sampling event.

 Tidal Conditions - Surface salinities were found at all but one of the Tidal stations. The largest salinity value, 13.6ppt, was found at Sabine River station SRT1C at a depth of 10.6 meters. 

Lower Sabine Basin (Toledo Bend Reservoir and Below)

Beginning with the September sampling site TB8 has been dropped from the monthly sample collection.

Weather - Weather conditions in the Lower Basin were warm with high temperatures from the mid 70s to mid 80s. Low temperatures ranged from upper 60s to low 70s. Toledo Bend received 0.71 inches of rainfall during the seven days prior to the sampling event.

Lake Level - The level of Toledo Bend Reservoir was recorded at 168.10 feet with 204 cfs discharge at the time of sampling. Toledo Bend has a conservation pool level of 172ft msl. Reservoir profiles indicated stratification of the water column with anoxic conditions found near the bottom at several lake stations.

 

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

Beginning with the September sampling one historic site (LT23B) was resumed on Lake Tawakoni. Sampling will cease at Sites LT23C, and SR22.

Weather - Recent weather (previous seven days) in the Sabine River Basin was warm, with daytime highs in the mid 70s to low 90s with lows in the upper 60s to low 70s at Lake Tawakoni and at Lake Fork. Lake Tawakoni received 7.72 inches of rainfall and Lake Fork received 7.19 inches rainfall the week preceding the sample run.

Lake Level - The level of Lake Tawakoni was 435.77 feet msl with a 6 cfs release and the level of Lake Fork was 403.17 feet msl with a 18.5 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 stratification at the deeper stations on 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 8

Segment 0503 - Sabine River Above Caney Creek. 9

Segment 0504 Toledo Bend Reservoir. 10

Segment 0505 - Sabine River Above Toledo Bend Reservoir. 14

Segment 0506 - Sabine River Below Lake Tawakoni 15

Segment 0507 - Lake Tawakoni 19

 

 

Table of Figures

Sabine Basin Map. 3

Segment 0501. 7

Segment 0502. 8

Segment 0503. 9

Toledo Bend Reservoir Profiles. 11

Segment 0504. 13

Segment 0505. 14

Lake Fork Reservoir Profiles. 16

Segment 0506. 18

Lake Tawakoni Profiles. 19

Segment 0507. 21

 


 
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

511

10449 (CB1)

COW BAYOU AT ROUNDBUNCH ROAD

508

10441 (AB2)

ADAMS BAYOU AT FM 1006

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

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

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

10437 (LT23B)

LAKE TAWAKONI AT SH 276


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.

Segment 0508 Adams Bayou Tidal. The segment reaches from the confluence with the Sabine River in Orange County to a point 1.1 kilometers (0.7 miles) upstream of IH-10 in Orange County.

Segment 0511 Cow Bayou Tidal. The segment reaches from the confluence with the Sabine River in Orange County to a point 4.8 kilometers (3.0 miles) upstream of IH-10 in Orange County.

 

Sampling Conditions: Beginning with the September sampling two new sites were added in the Tidal basin. One site has been added in Cow Bayou (CB1) and the other in Adams Bayou (AB2). These sites will take the place of the river sites above each bayou (SRT1A, and SRT1B). The bayou sites were added to monitor the progress of the OC TMDL implementation plan. The Tidal stations received 2.09 inches of rainfall in the seven days prior to the sample event. Surface salinities were found at all but one of the Tidal stations.  The largest salinity value, 13.6 ppt, was found at Sabine River station SRT1C at a depth of 10.6 meters. 

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

9/16/2009 11:23

10391(SRT1)

0.3

27.8

7.1

5.4

73

17,778

14,400

10.5

0.84

6.77

150

1046

 

 

1.5

27.7

7.1

5.1

69

17,831

11,410

10.5

 

 

 

 

 

 

3.0

27.5

7.1

4.9

66

18,077

11,570

10.6

 

 

 

 

 

 

5.0

27.3

7.1

4.6

62

18,542

11,870

10.9

 

 

 

 

 

 

7.2

27.2

7.1

4.6

61

18,852

12,070

11.1

 

 

 

 

9/16/2009 11:13

15654(BB1)

0.3

27.2

6.8

3.9

50

14,915

9,521

8.6

0.77

8.83

206

1200

 

 

1.6

26.8

6.7

3.0

40

15,062

9,645

8.7

 

 

 

 

 

 

2.6

26.8

6.8

3.1

46

15,094

9,672

8.8

 

 

 

 

9/16/2009 11:40

10449(CB1)

0.3

27.7

7.1

6.3

82

12,667

8,149

7.3

0.72

7.11

40

179

 

 

1.2

27.6

7.0

5.4

72

13,000

8,316

7.4

 

 

 

 

 

 

2.1

27.7

7.0

4.6

61

15,384

9,834

9

 

 

 

 

 

 

4.6

27.8

7.0

4.6

60

15,945

10,210

9.3

 

 

 

 

9/16/2009 10:52

10441(AB2)

0.3

27.4

6.9

4.9

64

10,345

6,483

6.2

0.68

6.2

187

261

 

 

1.6

28.0

6.9

3.0

41

15,447

9,845

9

 

 

 

 

 

 

3.6

28.2

6.8

2.2

29

16,813

10,770

9.8

 

 

 

 

9/16/2009 10:32

15653(ICW1)

0.3

27.5

7.3

5.9

77

15,701

10,080

9.2

0.96

6.45

49

276

 

 

2.0

27.3

7.0

5.2

70

17,268

11,050

10.1

 

 

 

 

 

 

4.0

27.3

7.0

5.1

68

18,714

12,010

11.1

 

 

 

 

 

 

6.1

27.4

7.0

5.2

69

20,345

13,030

12.1

 

 

 

 

NM = Not Measured

 

 

Segment 0501 Water Quality with Profiles Continued

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

9/16/2009 10:15

18056(SRT1C)

0.3

27.4

6.9

4.8

62

6,433

4,115

3.6

0.87

5.65

13

133

 

 

1.4

27.9

6.9

4.0

53

9,852

6,302

5.6

 

 

 

 

 

 

2.0

28.1

7.0

4.0

54

11,191

7,092

6.4

 

 

 

 

 

 

4.0

28.4

7.0

4.1

56

16,557

10,560

9.6

 

 

 

 

 

 

6.0

28.1

7.0

3.7

51

20,040

12,850

11.9

 

 

 

 

 

 

8.0

28.3

7.0

2.4

34

21,532

13,780

12.9

 

 

 

 

 

 

10.6

28.3

7.0

2.0

28

22,606

14,470

13.6

 

 

 

 

9/16/2009 10:00

10394(SRT2)

0.3

27.5

6.9

4.6

59

3,282

2,136

1.8

0.92

7.71

19

112

 

 

1.5

27.6

6.8

3.7

47

4,321

2,766

2.4

 

 

 

 

 

 

3.5

28.1

6.9

3.1

41

10,151

6,484

5.7

 

 

 

 

 

 

5.0

28.7

6.9

1.4

18

15,421

9,858

9

 

 

 

 

 

 

7.4

28.8

6.8

1.1

15

20,591

13,170

12.3

 

 

 

 

9/16/2009 9:30

10395(SR1)

0.3

27.7

7.2

4.6

59

347

222

NM

0.50

23

9

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: The USGS recorded flow at Sabine River station SR2 was 800 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

9/15/2009 8:40

10397(SR2)

0.3

27.9

7.3

6.4

81

194

124

0.56

12.2

6

Segment 0513

 

 

 

 

 

 

 

 

 

 

9/15/2009 9:15

10465(BCC1)

0.3

24.4

6.7

7.3

88

39

25

0.18

47.5

921

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: The USGS recorded flow at Sabine River station SR3 was 609 cfs and the USGS flow at Sabine River station SR5 was 1,010cfs.

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

9/15/2009 11:05

10398(SR3)

0.3

26.6

7.4

6.9

86

242

155

0.48

20.6

131

9/15/2009 10:45

10340(BA4)

0.3

26.5

7.7

6.3

79

849

543

0.26

17.3

46

9/15/2009 10:12

10399(SR5)

0.3

26.2

7.3

6.6

82

170

109

0.75

11.3

49

9/14/2009 13:30

10401(TB6S)

0.3

27.6

7.8

8.3

104

171

109

NM

2.82

50

9/14/2009 13:10

15660(BT1)

0.3

26.2

7.2

7.2

89

99

63

0.61

14.4

16

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 1.42 inches of rainfall during the week prior to sampling.  The level of Toledo Bend Reservoir was recorded at 168.10 feet with 204 cfs discharge at the time of sampling. Reservoir profiles indicated stratification of the water column with anoxic conditions found near the bottom at several lake stations.

 

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

9/14/2009 14:09

10404(TB6A)

0.3

27.6

7.1

6.5

82

170

108

2.5

1.95

1

 

 

1.8

26.9

7.1

6.1

77

170

108

 

 

 

 

 

4.0

26.8

7.0

5.7

72

170

109

 

 

 

 

 

6.0

26.7

6.8

5.0

63

170

109

 

 

 

 

 

8.6

26.4

6.6

2.1

25

168

107

 

 

 

 

 

10.0

22.6

6.5

0.3

3

178

116

 

 

 

 

 

14.0

19.5

6.5

0.3

3

168

107

 

 

 

 

 

17.0

18.6

6.6

0.3

3

170

109

 

 

 

 

 

20.0

18.0

6.7

0.3

3

170

109

 

 

 

 

 

25.3

16.9

7.0

0.4

4

174

112

 

 

 

9/14/2009 9:50

10407(TB6CN)

0.3

27.0

7.4

7.0

88

168

108

0.71

6.11

<1

 

 

1.0

26.8

7.2

5.7

74

166

107

 

 

 

 

 

2.0

26.7

7.1

5.3

66

165

106

 

 

 

 

 

3.0

26.5

7.0

4.6

57

164

105

 

 

 

 

 

4.0

26.2

6.9

4.1

51

164

105

 

 

 

 

 

5.0

26.1

6.9

3.7

46

165

105

 

 

 

9/14/2009 13:05

18054(TB6Q)

0.3

28.2

7.6

7.1

91

180

115

1.2

2.47

<1

 

 

1.3

27.9

7.4

6.8

88

180

115

 

 

 

 

 

3.0

27.4

7.2

6.1

78

179

115

 

 

 

 

 

5.0

27.3

7.1

5.6

71

180

116

 

 

 

 

 

7.7

27.2

6.9

4.9

61

180

116

 

 

 

9/14/2009 11:15

10411(TB6F)

0.3

28.2

7.5

6.8

89

169

108

0.62

6.48

<1

 

 

1.5

27.7

7.3

5.8

74

168

108

 

 

 

 

 

2.5

27.6

7.3

5.7

72

167

107

 

 

 

 

 

3.5

27.6

7.3

5.6

71

166

106

 

 

 

 

 

4.5

27.6

7.2

2.4

30

166

106

 

 

 


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

9/14/2009 10:58

10402(TB6H)

0.3

27.7

7.6

7.2

92

184

117

1

3.88

<1

 

 

1.8

27.5

7.3

6.4

82

184

118

 

 

 

 

 

3.3

27.4

7.3

6.2

78

184

118

 

 

 

 

 

5.0

27.4

7.2

6.0

76

184

118

 

 

 

 

 

7.8

27.3

7.1

6.1

77

184

118

 

 

 

 

 

11.0

26.6

6.8

3.7

49

185

118

 

 

 

 

 

11.5

25.7

6.7

0.6

7

195

125

 

 

 

 

 

13.0

20.8

6.8

0.3

3

205

132

 

 

 

 

 

16.6

19.3

6.8

0.3

4

197

127

 

 

 

 

 

19.4

19.1

6.9

0.5

5

197

127

 

 

 

9/14/2009 12:20

15659(TB6K)

0.3

27.4

7.3

6.3

78

188

121

0.43

8.5

1

 

 

1.4

26.9

7.0

3.5

44

189

120

 

 

 

 

 

2.4

26.9

7.1

3.5

44

189

121

 

 

 

 

 

3.4

26.9

7.0

3.4

42

189

121

 

 

 

 

 

4.4

26.9

7.0

3.2

41

189

121

 

 

 

 

 

5.4

26.9

7.0

3.4

43

189

121

 

 

 

 

 

6.4

26.9

7.0

3.4

42

188

120

 

 

 

 

 

7.4

26.9

7.1

3.3

41

189

120

 

 

 

 

 

8.4

26.9

7.1

3.2

40

189

121

 

 

 

9/14/2009 10:40

15655(TB6J)

0.3

27.7

7.5

6.3

80

191

122

0.49

8.27

<1

 

 

1.0

27.6

7.4

6.0

76

192

122

 

 

 

 

 

2.0

27.6

7.4

5.5

70

192

122

 

 

 

 

 

3.0

27.5

7.3

5.1

65

192

123

 

 

 

 

 

3.9

27.4

7.1

0.2

3

202

129

 

 

 

9/14/2009 12:22

18053(TB6LN)

0.3

28.1

7.4

6.0

76

184

118

0.82

4.97

<1

 

 

1.2

27.9

7.2

5.7

74

184

117

 

 

 

 

 

2.0

27.5

7.2

5.4

69

183

117

 

 

 

 

 

3.0

27.5

7.1

5.4

68

183

117

 

 

 

 

 

4.0

27.4

7.1

5.2

66

183

117

 

 

 

 

 

5.2

27.3

7.0

4.6

58

184

117

 

 

 

9/14/2009 9:53

18052(TB6R)

0.3

27.4

7.5

6.6

84

198

127

0.63

6.58

<1

 

 

2.0

27.4

7.5

6.4

81

198

127

 

 

 

 

 

4.0

27.3

7.4

6.1

77

200

128

 

 

 

 

 

6.7

27.2

7.3

5.7

72

200

200

 

 

 

 

 

9.0

27.2

7.1

5.3

68

200

200

 

 

 

 

 

11.7

27.1

6.9

4.7

59

202

202

 

 

 

 

 

14.5

26.9

6.9

3.0

38

208

208

 

 

 

 

 

 

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 2,570 cfs and Sabine River Station SR14 had a flow of 2,320 cfs. Increased flows, elevated turbidity and reduced Secchi transparencies were observed due to recent rainfall runoff.

 

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

9/16/09 10:24

10415(SR10)

24.8

6.9

5.7

70

226

145

0.18

71

186

9/16/09 09:51

13628(SR11)

25.4

7.0

5.8

72

196

126

0.11

110

345

9/16/09 08:34

10423(SR14)

25.2

6.8

5.7

70

158

101

0.11

99.8

276

9/16/09 08:10

10426(SR15)

24.8

6.6

5.9

72

90.4

57.8

0.14

91.3

387

9/16/09 07:49

10427(SR16)

24.8

6.6

6.0

73

92

59

0.17

68.5

548

 

 

 

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 7.19 inches of rainfall the preceding seven days prior to sampling. The level of Lake Fork was 403.17 feet msl with an 18.5 cfs release at the time of sampling. Reservoir profiles indicated thermal stratification of the water column at deeper Lake Fork stations. The USGS recorded flows were 2,900 cfs at Sabine River Station SR17, 1,370 cfs at Sabine River Station SR19 and 1,900 cfs at Sabine River Station SR21. The USGS recorded flow for Big Sandy Creek was 317 cfs. Increased flows, elevated turbidity and reduced Secchi transparencies were observed at river stations due to recent rainfall runoff.

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

9/16/09 7:20

10428(SR17)

0.3

24.2

6.4

5.9

72

91.6

58.7

0.20

63.2

517

9/15/09 13:42

10429(SR19)

0.3

24.1

6.6

6.1

73

166

106

0.10

148

1986

9/15/09 13:00

10430(SR21)

0.3

23.3

6.4

5.2

62

184

118

0.11

138

2420

Segment 0514

 

 

 

 

 

 

 

 

 

 

9/16/09 6:44

16011(BS9)

0.3

23.6

6.3

6.2

75

86.5

55.3

0.20

54

1733

Segment 0515

 

 

 

 

 

 

 

 

 

 

9/15/09 13:28

10469(LF20)

0.3

24.4

6.8

6.3

77

187

120

0.15

57.1

228

Segment 0512

 

 

 

 

 

 

 

 

 

 

9/15/09 7:45

10458(LF2)

0.3

25.8

7.3

5.9

73

165

106

1.67

2.38

1

 

 

1.0

25.9

7.1

5.8

72

165

106

 

 

 

 

 

2.5

25.9

7.1

5.8

72

165

106

 

 

 

 

 

4.0

25.9

7.1

5.8

72

165

106

 

 

 

 

 

5.5

25.9

7.1

5.8

72

165

106

 

 

 

 

 

7.0

25.9

7.1

5.7

72

165

106

 

 

 

 

 

8.5

25.9

7.1

5.7

72

165

105

 

 

 

 

 

10.0

25.9

7.1

5.7

71

165

106

 

 

 

 

 

11.5

24.8

7.0

0.3

3

187

120

 

 

 

 

 

13.0

21.1

6.9

0.1

1.5

196

125

 

 

 

 

 

14.5

19.2

6.8

0.1

1.2

200

128

 

 

 

 

 

16.0

18.0

6.8

0.1

1

210

134

 

 

 

 

 

17.5

17.6

6.8

0.1

0.9

217

139

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

9/15/09 8:45

10462(LF4)

0.3

26.3

7.2

5.4

68

167

107

0.98

3.09

12

 

 

1.0

26.3

7.2

5.4

68

167

107

 

 

 

 

 

2.5

26.3

7.1

5.4

67

167

107

 

 

 

 

 

4.0

26.3

7.1

5.3

67

167

107

 

 

 

 

 

5.5

26.3

7.1

5.3

67

167

107

 

 

 

 

 

7.0

26.3

7.1

5.3

67

167

107

 

 

 

 

 

8.5

26.3

7.1

5.1

64

166

107

 

 

 

 

 

10.0

25.5

6.9

0.2

1.9

183

118

 

 

 

 

 

10.7

24.7

7.1

0.1

1.2

218

139

 

 

 

9/15/09 8:22

10461(LF3)

0.3

25.8

7.1

4.9

61

169

108

1.00

3.32

3

 

 

1.0

25.8

7.0

4.9

61

169

108

 

 

 

 

 

2.5

25.8

7.0

4.8

60

169

108

 

 

 

 

 

4.0

25.8

7.0

4.7

59

169

109

 

 

 

 

 

5.5

25.8

7.0

4.7

59

170

109

 

 

 

 

 

7.0

25.8

7.0

4.7

58

169

108

 

 

 

 

 

8.5

25.8

7.0

4.6

57

170

109

 

 

 

 

 

9.4

25.7

7.0

4.4

55

169

108

 

 

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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 7.72 inches of rainfall the preceding seven days prior to sampling. The level of Lake Tawakoni was 435.77 feet msl with a 6 cfs release at the time of sampling. Reservoir profiles indicated thermal mixing of the water column.

 

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

9/15/09 11:10

10434(LT23A)

0.3

25.7

7.7

5.7

70

193

123

0.90

7.10

24

 

 

1.0

25.7

7.7

5.6

70

193

123

 

 

 

 

 

2.0

25.7

7.7

5.6

70

192

123

 

 

 

 

 

3.0

25.7

7.6

5.6

70

192

123

 

 

 

 

 

4.0

25.7

7.6

5.6

70

193

123

 

 

 

 

 

5.0

25.7

7.6

5.6

69

193

123

 

 

 

 

 

6.0

25.5

7.6

5.8

71

193

123