To: Interested Parties

From: Environmental Services Division

RE: November 2009 monthly Water Quality Report

The Environmental Services Field Offices conducted water quality monitoring in the Sabine Basin from November 16^th through 18^th. 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 mild with high temperatures from the low 50s to mid 70s. Low temperatures ranged from low 40s to upper 50s. The Tidal stations received 0.12 inches of rainfall in the seven days prior to the sampling event.

Tidal Conditions - Surface salinities were found at one of the Tidal stations. The largest salinity value, 1.9ppt, was found at Blacks Bayou station BB1 throughout the water column. The low salinity values are a result of the amount of water flowing downstream from heavy rains and the releases at Toledo Bend.

Lower Sabine Basin (Toledo Bend Reservoir and Below)

Weather - Weather conditions in the Lower Basin were mild with high temperatures from the upper 60s to upper 70s. Low temperatures ranged from mid 40s to low 60s. Toledo Bend received 0.16 inches of rainfall during the seven days prior to the sampling event.

Lake Level - The level of Toledo Bend Reservoir was recorded at 172.42 feet with 13,722 cfs discharge at the time of sampling. During this event the reservoir reached a maximum release of 74,750 cfs on November 2^nd, which included 1 generator plus all eleven spillway gates open 6 feet each. Toledo Bend has a conservation pool level of 172ft msl. Reservoir profiles indicated mixing 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 50s to upper 70s with lows in the mid 40s to upper 50s at Lake Tawakoni and at Lake Fork. Lake Tawakoni received 0.85 inches of rainfall and Lake Fork received 0.8 inches rainfall the week preceding the sample run.

Lake Level - The level of Lake Tawakoni was 438.01 feet msl with a 500 cfs release and the level of Lake Fork was 403.42 feet msl with a 3.5 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 mixing of the water column.

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:

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

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

Ø 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

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: The Tidal stations received 0.12 inches of rainfall in the seven days prior to the sample event. Salinities of greater than 1.0ppt were found at only one of the Tidal stations. The largest salinity value, 1.9 ppt, was found at Black’s Bayou station BB1 throughout the water column.

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		µS/cm	mg/L	ppt	meters	NTU	mpn/ 100mL	mpn/ 100mL
11/18/2009 11:00	10391(SRT1)	0.3	17.1	7.0	6.7	69	196	125	<1	0.42	13.1	29	44
		1.5	17.1	6.9	6.6	68	185	125	<1
		2.5	17.1	6.9	6.6	68	194	124	<1
		5.0	17.1	6.9	6.6	68	195	125	<1
		8.0	17.1	6.9	6.5	68	195	125	<1
11/18/2009 10:44	15654(BB1)	0.3	15.3	7.3	7.6	76	3,566	2,282	1.9	0.49	8.08	43	91
		1.5	15.3	7.1	7.5	76	3,555	2,277	1.9
		2.8	15.3	7.2	7.5	76	3,564	2,280	1.9
Segment 0511
11/18/2009 11:15	10449(CB1)	0.3	17.6	6.8	5.1	53	312	200	<1	0.29	26	78	155
		2.0	17.5	6.6	4.8	51	313	200	<1
		4.1	17.5	6.6	4.9	51	314	201	<1
Segment 0508
11/18/2009 10:22	10441(AB2)	0.3	17.5	6.9	4.1	43	419	268	<1	0.25	24.2	66	162
		1.5	17.4	6.7	3.8	40	420	269	<1
		3.8	17.1	6.8	3.8	39	423	271	<1
11/18/2009 10:02	15653(ICW1)	0.3	16.9	7.2	7.1	72	215	138	<1	0.4	15.1	31	35
		1.4	16.9	6.9	6.9	71	215	138	<1
		3.0	16.9	7.0	6.9	71	215	138	<1
		5.8	16.9	7.0	6.9	71	216	138	<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		µS/cm	mg/L	ppt	meters	NTU	mpn/ 100mL	mpn/ 100mL
11/18/2009 9:45	18056(SRT1C)	0.3	16.6	7.0	6.7	68	174	111	<1	0.50	11.6	39	59
		1.6	16.6	6.9	6.6	68	174	111	<1
		3.0	16.6	6.9	6.6	67	174	111	<1
		5.0	16.6	6.9	6.6	68	174	111	<1
		6.0	16.6	6.9	6.5	67	174	111	<1
11/18/2009 9:30	10394(SRT2)	0.3	16.3	7.0	6.7	68	173	111	<1	0.53	11.5	21	70
		1.5	16.3	6.9	6.6	67	173	111	<1
		2.6	16.3	6.9	6.6	67	172	111	<1
		3.7	16.3	6.9	6.6	67	172	111	<1
11/18/2009 9:00	10395(SR1)	0.3	16.6	7.0	6.7	68	185	118	NM	0.35	14.5	28	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: Flooding conditions were noted and station SR2 due to the amounts of rainfall that were received upstream, and releases from Toledo Bend. The USGS recorded flow at Sabine River station SR2 was 18,700 cfs.

Segment 0502 Water Quality

Date and Time	Station	Depth	Temp	pH	DO	% Sat	Cond	TDS	Secchi	Turbidity	E.coli
Date and Time	Station	meters	^°C	SU	mg/L	% Sat	µS/cm	mg/L	meters	NTU	mpn/100mL
11/17/2009 9:05	10397(SR2)	0.3	18.1	6.9	6.5	69	166	107	0.44	16	60
Segment 0513
11/17/2009 9:43	10465(BCC1)	0.3	15.3	6.8	8.7	87	44	29	0.79	8.66	133

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 River was found to be above flood stage throughout this segment. The USGS recorded flow at Sabine River station SR3 was 16,400cfs and the USGS flow at Sabine River station SR5 was 17,400cfs.

Segment 0503 Water Quality

Date and Time	Station	Depth	Temp	pH	DO	% Sat	Cond	TDS	Secchi	Turbidity	E.coli
Date and Time	Station	meters	^°C	SU	mg/L	% Sat	µS/cm	mg/L	meters	NTU	mpn/100mL
11/17/2009 11:33	10398(SR3)	0.3	18.7	7.3	8.1	86	172	109	0.83	13.4	7
11/17/2009 11:10	10340(BA4)	0.3	16.5	7.1	7.9	82	234	150	0.44	12.9	26
11/17/2009 10:42	10399(SR5)	0.3	19	7.4	8.9	96	173	111	NM	4	6
11/16/2009 13:50	10401(TB6S)	0.3	19.8	7.4	9.4	103	174	111	0.8	5.22	12
11/16/2009 13:30	15660(BT1)	0.3	17.2	6.9	8.6	89	95	61	0.52	14.9	55

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 0.16 inches of rainfall during the week prior to sampling. The level of Toledo Bend Reservoir was recorded at 172.42 feet with 13,722 cfs discharge at the time of sampling. During this event the reservoir reached a maximum release of 74,750 cfs on November 2^nd, which included 1 generator plus all eleven spillway gates open 6 feet each. Toledo Bend has a conservation pool level of 172ft msl. Reservoir profiles indicated mixing of the water column.

Segment 0504 Water Quality with Profiles

Date and Time	Station	Depth	Temp	pH	DO	% Sat	Cond	TDS	Secchi	Turbidity	E.coli
Date and Time	Station	meters	^°C	SU	mg/L	% Sat	µS/cm	mg/L	meters	NTU	mpn/100mL
11/16/2009 14:50	10404(TB6A)	0.3	19.6	7.7	7.9	86	170	108	NM	1.81	3
		5.0	19.6	7.5	7.8	85	170	108
		10.0	19.6	7.5	7.7	84	170	109
		15.0	19.6	7.4	7.5	82	169	108
		20.0	19.5	7.4	7.2	78	169	108
		23.6	19.5	7.5	7.3	78	169	108
11/16/2009 9:50	10407(TB6CN)	0.3	19.8	7.3	7.2	79	142	92	>1.2	4.33	2
		1.7	19.8	7.0	7.2	78	142	91
		2.6	19.8	6.9	7.2	78	142	90
		3.6	19.8	6.9	7.1	78	141	90
		4.6	19.6	6.8	6.7	73	138	88
		5.7	19.4	6.7	6.0	65	134	86
11/16/2009 13:40	18054(TB6Q)	0.3	19.4	7.4	8.0	87	163	105	1.2	3.94	<1
		1.5	19.4	7.4	7.8	85	163	105
		3.0	19.4	7.4	7.8	85	163	104
		4.0	19.4	7.3	7.7	84	163	104
		5.0	19.4	7.2	7.2	78	164	105
		6.0	19.2	7.2	5.8	64	167	108
		7.0	19.1	7.2	5.5	60	169	108
		9.2	19.1	7.3	5.5	59	170	109
11/16/2009 11:25	10411(TB6F)	0.3	19.6	7.2	8.1	88	125	80	0.75	6.46	<1
		1.1	19.6	7.1	8.0	87	125	80
		2.1	19.6	7.0	7.8	85	125	80
		3.1	19.6	7.0	7.6	83	125	80
		4.1	19.4	6.7	6.1	75	125	80
		5.3	18.8	6.7	3.9	44	117	75

Segment 0504 Water Quality with Profiles Continued

Date and Time	Station	Depth	Temp	pH	DO	% Sat	Cond	TDS	Secchi	Turbidity	E.coli
Date and Time	Station	meters	^°C	SU	mg/L	% Sat	µS/cm	mg/L	meters	NTU	mpn/100mL
11/16/2009 11:15	10402(TB6H)	0.3	18.7	6.9	6.7	72	113	72	0.91	10.6	3