| Metadata for WRIM Station Pages |
| HTML Page Created 14MAY2020 |
| Data | Source | Date downloaded/created | Variables | Observations | Description |
|---|---|---|---|---|---|
| Events | TCEQ | 10/07/2019 | 14 | 1168591 | Sample events file from TCEQ SWQMIS Database - All Data |
| Results | TCEQ | 10/07/2019 | 9 | 12463282 | Sample results file from TCEQ SWQMIS Database- All Data |
| wrim.raw | H-GAC-Hoffman | 10/07/2019 | 20 | 12433194 | Statewide data, compiled events/results, data processing using SAS |
| wrim.data | H-GAC-Hoffman | 10/07/2019 | 32 | 928678 | Compiled events/results, data processing using SAS, H-GAC CRP CMS |
| Water Quality Standards | TCEQ | 02/09/2015 | n/a | n/a | Texas Surface Water Quality Standards TAC 307- transcribed by H-GAC |
| Screening Levels | TCEQ | 02/25/2016 | n/a | n/a | Draft 2016 Guidance for Assessing and Reporting Surface Water Quality in Texas |
| Impairments / Concerns | TCEQ | 10/31/2018 | 28 | 30357 | 2016 IR AssessmentResults from L. Ryckman, 12/19/16, edited 10/31/18 after final 2016 IR |
| Station/AU assignments | TCEQ | 12/05/2017 | 2 | 436 | Table of station/ AU assignments for 2018 IR from P. Bohanon; additional AU from HGAC records |
| Monitoring Station Information | TCEQ | 02/11/2019 | 49 | 9922 | Station inventory report |
| Stream Segment Information | TCEQ | 08/30/2016 | 9 | 1161 | Segment descriptions |
| H-GAC region stations | H-GAC | 06/13/2019 | 9 | 559 | GIS data from H-GAC GIS Team (HGAC CMS + additional stations in bordering AU) |
| CMS Stations | LCRA | 02/11/2019 | 25 | 542 | Region 12 CMS from LCRA; HGAC = SE: 341 |
| Watershed descriptions | H-GAC | 10/21/2010 | 4 | 53 | General watershed information compiled for 2011 BSR |
| Water Quality Montoring Station 15853 |
| Link to TCEQ Watershed Data |
| All data from this station, assessment unit, and/or segment can be downloaded from the links below (CSV Format) |
| Click the link with right mouse button and select 'Save Link [target] As' |
| Station Data |
| AU Data |
| Station Description | Water Body | Water Body Type | Watershed | Segment | TCEQ Assessment Unit | Latitude | Longitude | Summer Photo | Winter Photo | Access Database Download Link | USGS Flow Gauge Data |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Brays Bayou Immediately Downstream Of Hillcroft Street In West Houston | Brays Bayou Above Tidal | Unclassified Freshwater Stream | Houston Ship Channel/Buffalo Bayou Tidal | 1007 | 1007B_01 | 29.67797300000 | -95.49282799000 | Summer Picture | Winter Picture | Data Download Page | No USGS Gauge |
| General Monitoring Information |
| Data Collector | Oldest Sampling Event in TCEQ Database | Most Recent Sampling Event in TCEQ Database | Frequency | Parameter Groups |
|---|---|---|---|---|
| City of Houston | 04/07/1999 | 09/23/1999 | Quarterly | Field, Conventional, Bacteria |
| Houston Health Department BPCP | 03/07/2000 | 04/10/2019 | Quarterly | Field, Conventional, Bacteria |
| Watershed Information |
| Watershed | Segment ID | Water Body | Segment Definition | Watershed Description | Water Quality Issues | Watershed Map |
|---|---|---|---|---|---|---|
| Houston Ship Channel/Buffalo Bayou Tidal | 1007 | Brays Bayou Above Tidal | From a point immediately upstream of the confluence with Greens Bayou in Harris County to a point 100 meters (110 yards) upstream of US 59 in Harris County, including tidal portion of tributaries. Sub-Segment 1007A: Canal C147 tributary of Sims Bayou Above Tidal (unclassified water body).From the Sims Bayou confluence upstream to a point 0.71 km (0.44 mi) east of Beltway 8. Sub-Segment 1007B: Brays Bayou Above Tidal (unclassified water body). From a point 11.5 km (7.1 mi) upstream of confluence with Houston Ship Channel up to SH 6. Sub-Segment 1007C: Keegans Bayou Above Tidal (unclassified water body). From the Brays Bayou confluence to the Harris County line. Sub-Segment 1007D: Sims Bayou Above Tidal (unclassified water body). From 11.0 km (6.8 mi) upstream of the Houston Ship Channel confluence to State Hwy 45. Sub-Segment 1007E: Willow Waterhole Bayou Above Tidal (unclassified water body). From the Brays Bayou confluence upstream to South Garden Street.Sub-Segment 1007F: Berry Bayou Above Tidal (unclassif | This very urbanized watershed includes 14 miles of the Houston Ship Channel (HSC) but more than 70 miles of tidal and non-tidal tributary streams. The Houston Ship Channel (HSC) is lined by heavy industrial complexes located in the City of Pasadena, Galena Park, Houston, and unincorporated Harris County. Numerous permitted wastewater and storm water discharges are located throughout the watershed. The HSC supports heavy boat and barge traffic from Greens Bayou upstream to the turning basin on a continual basis. The Cities of Pasadena and South Houston are drained primarily by Vince Bayou, Little Vince Bayou and Berry Bayou, while the two largest tributaries. Sims and Brays Bayous drain the City of Houston and a host of smaller cities and unincorporated communities to the west. About half of the watershed supports low intensity residential and commercial development while the rest is a mixture of high intensity development, grasslands and pockets of forested areas. Not all areas are serviced by sanitary sewer | None of the four uses designated to Houston Ship Channel/Buffalo Bayou Tidal - aquatic, recreation, fish consumption, and general is fully supported. All the Assessment Units (AU) located on the classified portion of the channel are listed as impaired for fish consumption due to high levels of dioxin/PCBs and other toxic chemicals present in pesticides (Chlordane, Dieldrin, and Heptachlor). Due to the high levels found in this segment, the Texas Department of State Health Services has issued a Limited Consumption Fish Advisory for this water body. The impairment for this designated use in listed in both the Draft 2010 Texas Integrated Report (IR) and the 2008 IR. | Watershed Map |
| In general, the discussion of water quality issues applies only to classified portions of the watershed |
| Designated Uses for the Water Body |
| Designated Use | Aquatic Life Use | ALU Designation Source | Fishery Type |
|---|---|---|---|
| Recreation Use | Limited | TSWQS Appendix D | Incidental |
| Aquatic Life Use | Limited | TSWQS Appendix D | Incidental |
| General Use | Limited | TSWQS Appendix D | Incidental |
| Additional information on aquatic life uses for unclassified water bodies can be found in Appendix D of the 2014 TCEQ Water Quality Standards |
| Current Standards (30 TAC Chapter 307) |
| Water Quality Standards and Screening Levels |
| Parameter | Criterion Type | Standard or Screening Level |
|---|---|---|
| Ammonia-N | 2014 TCEQ Screening Level | 0.33 mg/L |
| Chlorophyll a | 2014 TCEQ Screening Level | 14.1 Micrograms / L |
| Dissolved Oxygen (24-hour Mean/ Grab Screening Level) | 2014 Water Quality Standard | 3.0 mg/L |
| Dissolved Oxygen (24-hour Minimum / Grab Minimum) | 2014 Water Quality Standard | 2.0 mg/L |
| Dissolved Oxygen (grab) | 2014 Water Quality Standard | 3.0 mg/L |
| E. Coli | 2014 Water Quality Standard | 126 MPN/100 mL |
| Nitrate+nitrite | 2014 TCEQ Screening Level | 1.95 Mg/L |
| Nitrate-N | 2014 TCEQ Screening Level | 1.95 Mg/L |
| Orthophosphate-P | 2014 TCEQ Screening Level | 0.37 mg/L |
| Total Phosphorus | 2014 TCEQ Screening Level | 0.69 mg/L |
| Source: Chapter 307 of the Texas Administrative Code (6/30/10) and current TCEQ nutrient screening levels (8/25/10) |
| TCEQ does not assess unclassified water bodies against general use criteria (temperature, pH, total dissolved solids, chloride, and sulfate); These criteria are included for reference only |
| EPA-Approved Texas Water Quality Standards |
| TCEQ Water Quality Standards Information |
| Description of Water Quality Parameters |
| Summary of Water Quality Impairments and Concerns |
| Station ID | Bacteria Impairment | Low Dissolved Oxygen | Nutrient Screening Levels Exceeded for One or More Nutrients | PCB Dioxin Impairment |
Impaired Macrobenthic Community | Impaired Fish Community | Habitat Impairment | Mercury Impairment | Sediment Toxicity | Shellfish Harvesting Restrictions | DSHS Fish Shellfish Consumption Advisories |
Bioaccumlative Toxics in Water |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15853 | X | C |
| Source: TCEQ 2016 Integrated Report |
| Impairments are identified by an 'X' |
| Water quality impairments and concerns apply only to the assessment unit in which this station is located |
| TCEQ Integrated Report |
| Texas Department of State Health Services Fish and Shellfish Advisories |
| Texas Parks and Wildlife Fish Consumption Advisories |
| Water Quality Assessment Details |
| Assessment Unit | Assessed Use | Impairment or Concern | Assessed Parameter | Integrated Support Code | Impairment Category | Integrated Support Code | Impairment or Concern Details | Dataset Qualifier | Number of Samples Assessed | Number of Samples Exceeding Standard or Screening Level | Geometric Mean or Average | Assessment Start Date | Assessment End Date |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1007B_01 | Recreation Use | Bacteria Geomean | E. coli | NS | 4a | NS | TMDL completed and approved by EPA | Adequate Data (10 or More Samples) | 810 | 1 | 1534.1239 | 01DEC2007 | 30NOV2014 |
| 1007B_01 | Aquatic Life Use | Dissolved Oxygen grab minimum | Dissolved Oxygen Grab | FS | FS | Adequate Data (10 or More Samples) | 804 | 0 | . | 01DEC2007 | 30NOV2014 | ||
| 1007B_01 | Aquatic Life Use | Dissolved Oxygen grab screening level | Dissolved Oxygen Grab | NC | NC | Adequate Data (10 or More Samples) | 804 | 1 | . | 01DEC2007 | 30NOV2014 | ||
| 1007B_01 | General Use | Nutrient Screening Levels | Ammonia | CS | CS | Screening Level Concern | Adequate Data (10 or More Samples) | 610 | 265 | . | 01DEC2007 | 30NOV2014 | |
| 1007B_01 | General Use | Nutrient Screening Levels | Chlorophyll-a | NC | NC | Limited Data (less than 9, greater than 3) | 6 | 2 | . | 01DEC2007 | 30NOV2014 | ||
| 1007B_01 | General Use | Nutrient Screening Levels | Nitrate | CS | CS | Screening Level Concern | Adequate Data (10 or More Samples) | 609 | 536 | . | 01DEC2007 | 30NOV2014 | |
| 1007B_01 | General Use | Nutrient Screening Levels | Total Phosphorus | CS | CS | Screening Level Concern | Adequate Data (10 or More Samples) | 609 | 481 | . | 01DEC2007 | 30NOV2014 |
| Source: TCEQ 2016 Integrated Report |
| Impairments are identified by an 'X' |
| Water quality impairments and concerns apply only to the assessment unit in which this station is located |
| TCEQ Integrated Report |
| Texas Department of State Health Services Fish and Shellfish Advisories |
| Texas Parks and Wildlife Fish Consumption Advisories |
| Summary of Data Collected in the Past Seven Years |
| Graphs of Possible Trends from Correlation Analysis may be found at the link below |
| Statistically Signficant 7-YearTrends- Time Series Graph |
| Description of Water Quality Parameters |
| Parameter | Units | Start Date | End Date | Number of Samples | Standard or Screening Level Exceedances | Percent Exceedance | Minimum Value | Maximum Value | Mean Value | Median Value | Geometric Mean | Standard Deviation | 90th Percentile | P-Value | Time Correlation | Possible Trends |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ammonia-N | mg/L | 04/25/2012 | 04/10/2019 | 65 | 18 | 27.7 | 0.05 | 5.35 | 0.39 | 0.20 | . | 0.73 | 0.89 | . | . | |
| Chloride | mg/L | 04/25/2012 | 04/10/2019 | 65 | . | . | 16 | 99 | 70.8 | 76 | . | 20.1 | 92 | . | . | |
| Dissolved Oxygen (grab) | mg/L | 04/25/2012 | 04/10/2019 | 65 | 0 | 0.0 | 5.80 | 14.40 | 10.32 | 10.60 | . | 1.63 | 12.10 | . | . | |
| E. Coli | MPN / 100 mL | 04/25/2012 | 04/10/2019 | 65 | 65 | 100 | 440 | 87000 | 7816 | 2600 | 3166 | 14185 | 20000 | 0.01689 | 0.295 | Possible Deterioration |
| Enterococci | MPN / 100 mL | 04/25/2012 | 07/27/2017 | 22 | . | . | 41 | 8700 | 939 | 480 | 399 | 1823 | 1800 | . | . | |
| Nitrate-N | mg/L | 04/25/2012 | 04/10/2019 | 65 | 60 | 92.3 | 0.18 | 14.00 | 6.62 | 6.44 | . | 3.11 | 10.30 | 0.01389 | -.304 | Possible Improvement |
| Secchi Transparency | Meters | 04/25/2012 | 04/10/2019 | 65 | . | . | 0.12 | 0.63 | 0.29 | 0.26 | . | 0.11 | 0.45 | . | . | |
| Specific Conductance | Microsiemens / cm | 04/25/2012 | 04/10/2019 | 65 | . | . | 101 | 811 | 615 | 655 | . | 153 | 781 | . | . | |
| Sulfate | mg/L | 04/25/2012 | 04/10/2019 | 65 | . | . | 10 | 70 | 41.5 | 42 | . | 12.6 | 55 | 0.02994 | -.269 | Possible Improvement |
| Temperature | Degrees C | 04/25/2012 | 04/10/2019 | 65 | . | . | 10.8 | 32.6 | 24.1 | 25.1 | . | 6.1 | 31.6 | . | . | |
| Total Kjeldahl Nitrogen | mg/L | 04/25/2012 | 07/27/2017 | 23 | . | . | 0.60 | 3.60 | 1.84 | 1.90 | . | 0.85 | 3.10 | . | . | |
| Total Phosphorus | mg/L | 04/25/2012 | 04/10/2019 | 65 | 61 | 93.8 | 0.38 | 2.82 | 1.43 | 1.46 | . | 0.54 | 2.22 | . | . | |
| Total Suspended Solids | mg/L | 04/25/2012 | 04/10/2019 | 65 | . | . | 8 | 71 | 25 | 25 | . | 10.1 | 34 | . | . | |
| pH | Standard Units | 04/25/2012 | 04/10/2019 | 65 | . | . | 7.1 | 8.9 | 8.2 | 8.3 | . | 0.34 | 8.6 | . | . |
| Statistics in this table apply to the time period selected by H-GAC for analysis; additional data is available in the TCEQ Surface Water Monitoring Information System database |
| P-value and time correlation derived from nonparametric correlation analysis of concentration and collection date; trends identified have not been confirmed by other methods and should not be considered definitive |
| Exceedance statistics reflect samples that exceed single-sample or geometric mean criteria published in Chapter 307 of the Texas Administrative Code (6/30/10), or TCEQ nutrient screening levels |
| Nutrient data (chlorophyll a, nitrate nitrogen, total phosphorus, ammonia nitrogen, and orthophosphate phosphorus) are not collected at all stations |
| A time correlation of 'M' indicates that all sample values were identical; regresssion statistics are not valid |
| Channel and Habitat Characteristics- H-GAC Watershed Characterizations and Special Projects |
| TCEQ Station Watershed Data |
| General Channel Description | Left Bank Characteristics | Right Bank Characteristics |
|---|---|---|
| Type: Concrete Present ; Buffer: Wide ; Surrounding land use: Residential - 70%, Commercial - 30% ; Width: 30 Yds ; Surrounding land use: Residential - 70%, Commercial - 30%Buffer Zone: Wide ; Treatment plant outfalls: Present ; Outfall distance: ; Storm drains: Present - 2 ; Storm drain distance: At Sample Point | Description: Mowed Grasses - 50%, Concrete - 50% ; Riparian Vegetation: Tall Grass - 40%, No Riparian Habitat - 60% , No Riparian Habitat ; Density: No Riparian HabitatBank stability: Concrete | Description: Mowed Grasses - 50%, Concrete - 50% ; Riparian Vegetation: Tall Grass - 40%, No Riparian Habitat - 60% , No Riparian Habitat ; Density: No Riparian HabitatBank stability: Concrete |
| This information may not reflect present channel and habitat conditions, and is presented for general reference only |
| Most Recent Sampling Event in SWQMIS |
| Station_ID | Sample Depth | Sample Date | Time | Collector | Parameter | Parameter Code |
GTLT | Value | Units | Standard / Screening level |
|---|---|---|---|---|---|---|---|---|---|---|
| 15853 | 0.3 | 04/10/2019 | 11:45 | Houston Health Department BPCP | Ammonia-N | 00610 | 0.14 | Mg / L | 0.33 mg/L | |
| 15853 | 0.3 | 04/10/2019 | 11:45 | Houston Health Department BPCP | Chloride | 00940 | 76 | Mg / L | ||
| 15853 | 0.3 | 04/10/2019 | 11:45 | Houston Health Department BPCP | Days Since Last Rain | 72053 | 3 | Mg / L | ||
| 15853 | 0.3 | 04/10/2019 | 11:45 | Houston Health Department BPCP | Dissolved Oxygen (grab) | 00300 | 10.3 | Mg / L | 3.0 mg/L | |
| 15853 | 0.3 | 04/10/2019 | 11:45 | Houston Health Department BPCP | E. Coli | 31699 | 4000 | MPN / 100 mL | 126 MPN/100 mL | |
| 15853 | 0.3 | 04/10/2019 | 11:45 | Houston Health Department BPCP | Flow Severity | 01351 | 5 | Mg / L | ||
| 15853 | 0.3 | 04/10/2019 | 11:45 | Houston Health Department BPCP | Nitrate-N | 00620 | 5.46 | Mg / L | 1.95 Mg/L | |
| 15853 | 0.3 | 04/10/2019 | 11:45 | Houston Health Department BPCP | Secchi Transparency | 00078 | 0.25 | Meters | ||
| 15853 | 0.3 | 04/10/2019 | 11:45 | Houston Health Department BPCP | Specific Conductance | 00094 | 662 | Microsiemens / cm | ||
| 15853 | 0.3 | 04/10/2019 | 11:45 | Houston Health Department BPCP | Sulfate | 00945 | 41 | Mg / L | ||
| 15853 | 0.3 | 04/10/2019 | 11:45 | Houston Health Department BPCP | Temperature | 00010 | 26.2 | Degrees C | ||
| 15853 | 0.3 | 04/10/2019 | 11:45 | Houston Health Department BPCP | Total Phosphorus | 00665 | 0.81 | Mg / L | 0.69 mg/L | |
| 15853 | 0.3 | 04/10/2019 | 11:45 | Houston Health Department BPCP | Total Suspended Solids | 00530 | 22 | Mg / L | ||
| 15853 | 0.3 | 04/10/2019 | 11:45 | Houston Health Department BPCP | pH | 00400 | 8.3 | Standard Units |