NPDES TX0098957 · Clean Water Act
CINCO MUD NO 1 CENTRAL WWTP, Katy, TX: NPDES TX0098957 discharge permit, effluent exceedances, inspections, penalties
CINCO MUD NO 1 CENTRAL WWTP, Katy, Texas: Individual permit TX0098957, held by CINCO MUD 1; Publicly owned treatment works; Administratively continued; issued June 20, 2018, term to June 20, 2023; discharges to WILLOW FORK DRAINAGE DITCH VA 1; BUFFALO BAYOU.
6 of the 55 pollutants listed for NPDES TX0098957 have no violation or effluent exceedance.
- E. coli: 2 limits, 16 violations of any kind, 16 effluent exceedances, latest June 30, 2026, largest 99,999% over the limit.
- Whole effluent toxicity: 4 limits, 18 violations of any kind, 10 effluent exceedances, latest December 31, 2021, largest 99,999% over the limit.
- Copper, total [as Cu]: 3 limits, 6 violations of any kind, 6 effluent exceedances, latest January 31, 2006, largest 656% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 3 limits, 1 violation of any kind, 1 effluent exceedance, latest November 30, 2005, largest 40% over the limit.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 15 violations of any kind.
- NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 14 violations of any kind.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 14 violations of any kind.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 12 violations of any kind.
- Flow, in conduit or thru treatment plant: 4 limits, 10 violations of any kind.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 10 violations of any kind.
- NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 10 violations of any kind.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 10 violations of any kind.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas: 2 limits, 10 violations of any kind.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 10 violations of any kind.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 10 violations of any kind.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 8 violations of any kind.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 8 violations of any kind.
- Arsenic, dry weight: 5 limits, 5 violations of any kind.
- Chromium, sludge, total, dry weight [as Cr]: 5 limits, 5 violations of any kind.
- pH: 3 limits, 3 violations of any kind.
- Selenium, dry weight: 3 limits, 3 violations of any kind.
- Copper, dry weight: 3 limits, 3 violations of any kind.
- Cadmium, dry weight: 3 limits, 3 violations of any kind.
- Molybdenum, sludge, total, dry weight [as Mo]: 3 limits, 3 violations of any kind.
- Zinc, sludge, total, dry weight [as Zn]: 3 limits, 3 violations of any kind.
- Lead, sludge, total, dry weight [as Pb]: 3 limits, 3 violations of any kind.
- Nickel, sludge, total, dry weight [as Ni]: 3 limits, 3 violations of any kind.
- Mercury, sludge, total, dry weight [as Hg]: 3 limits, 3 violations of any kind.
- LC50 Pass/Fail Static 24Hr Acute D. Pulex: 1 limit, 3 violations of any kind.
- LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 1 limit, 3 violations of any kind.
- Nickel, total [as Ni]: 2 limits, 2 violations of any kind.
- Level of pathogen requirements achieved: 2 limits, 2 violations of any kind.
- Description of pathogen option used: 2 limits, 2 violations of any kind.
- Vector attraction reduction alternative used: 2 limits, 2 violations of any kind.
- Annual amt sludge transported interstate: 1 limit, 2 violations of any kind.
- Fecal coliform: 1 limit, 1 violation of any kind.
- Polychlorinated biphenyls [PCBs]: 1 limit, 1 violation of any kind.
- Toxicity characteristic leaching procedure: 1 limit, 1 violation of any kind.
- Ann. amt sludge disposed by other method: 1 limit, 1 violation of any kind.
- Annual amt of sludge incinerated: 1 limit, 1 violation of any kind.
- Annual sludge production, total: 1 limit, 1 violation of any kind.
- Annual amount of sludge land applied: 1 limit, 1 violation of any kind.
- Annual amt. sludge disposed surface unit: 1 limit, 1 violation of any kind.
- Annual amt sludge disposed in landfill: 1 limit, 1 violation of any kind.
- Unit w/liner/leachate collection system: 1 limit, 1 violation of any kind.
- Compliance w/part 258 sludge requirement: 1 limit, 1 violation of any kind.
- Boundary areas: 1 limit, 1 violation of any kind.
- Salmonella: 1 limit, 1 violation of any kind.
- Pollutant table from 503.13: 1 limit, 1 violation of any kind.
- Solids, total suspended: 3 limits.
- Nitrogen, ammonia total [as N]: 3 limits.
- Whole effluent toxicity - retest #1: 3 limits.
- Whole effluent toxicity - retest #2: 3 limits.
- Oxygen, dissolved [DO]: 1 limit.
- Annual whole sludge application rate: 1 limit.
- May 23, 2025: Permit Violations - Violation Specified in Comment (ST6).
- July 7, 2023: Permit Violations - Violation Specified in Comment (ST6).
- July 11, 2018: Permit Violations - Violation Specified in Comment (ST6).
Texas holds 1,720 Publicly owned treatment works coverages of this permit type in EPA’s file; 804 were issued before TX0098957. CINCO MUD 1 holds 3 permits in Texas.
Other permits held by CINCO MUD 1
- CINCO RANCH SOUTH WWTF, Fort Bend County: TX0098965, issued 2017-08-28
- CINCO MUD 1 REVERSE OSMOSIS WTP, Katy Mills: TX0135194, issued 2017-05-09
Coverages issued nearest TX0098957
- 2018-06-14: WESTON MUD WWTP, Katy: TX0132276, held by WESTON MUD
- 2018-06-14: MONTGOMERY COUNTY MUD 145 WWTP, Conroe: TX0135755, held by MONTGOMERY COUNTY MUD NO 145
- 2018-06-14: HARRIS COUNTY MUD NO 438, Cypress: TX0136484
- 2018-06-20: MOUNT HOUSTON RD MUD WWTP, Houston: TX0023515, held by MOUNT HOUSTON ROAD MUD
- 2018-06-20: CITY OF SOUTHSIDE PLACE WWTP, Houston: TX0026972, held by CITY OF SOUTHSIDE PLACE
- 2018-06-28: FALLBROOK UD WWTP, Houston: TX0021237, held by FALLBROOK UTILITY DISTRICT
- 2018-06-28: SPRING CREEK UD WWTP, Spring: TX0026221, held by SPRING CREEK UTILITY DISTRICT
- 2018-06-28: HARRIS COUNTY MUD 50 WWTP, Crosby: TX0057053, held by HARRIS COUNTY MUD 50
- 2018-07-03: CYPRESS HILL MUD 1 WWTP, Cypress: TX0086011, held by CYPRESS HILL MUD 1
- 2018-07-03: 18415 FOREST DEER RAOD, Houston: TX0097373, held by ROLLING CREEK UTILITY DISTRICT
CINCO MUD NO 1 CENTRAL WWTP among its neighbors
113 discharge permits are in the Barker Reservoir-Buffalo Bayou subwatershed (HUC 120401040104); TX0098957 is one. Its county: 1,100, 41 major; TX0098957 is major permit.
Other permits in the Barker Reservoir-Buffalo Bayou subwatershed (HUC 120401040104)
- 66 WATERLINE ALONG KINDER MORGAN CORRIDOR, Katy: TXR1542SS, minor, term to 2028-03-04
- ADDICKS RESERVOIR, Houston: TXR1506XW, minor, term to 2028-03-04
- ANDRETTI INDOOR KARTING AND GAMES, Katy: TXR15152X, minor, term to 2023-03-04
- BABACAR DIGNE, Katy: TXRNECG75, minor, term to 2026-08-13
- BECK JUNIOR HIGH ADDITIONS AND RENOVATIONS, Katy: TXR1550XP, minor, term to 2028-03-04
- BING SOUTH APARTMENTS, Katy: TXR1517VA, minor, term to 2028-03-04
- BING SOUTH APARTMENTS, Katy: TXR1535VA, minor, term to 2028-03-04
- CASTLEWOOD MUD WWTP, Houston: TX0071625, major, term to 2022-05-01
- CHASE BANK - KATY MARKETPLACE, Katy: TXR1566SP, minor, term to 2028-03-04
- CIMARRON MUD MS4, Houston: TXR040660, minor, term to 2024-01-23
Identity
| Facility | CINCO MUD NO 1 CENTRAL WWTP |
|---|---|
| Permittee | CINCO MUD 1 |
| NPDES ID | TX0098957 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Major |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | June 20, 2018 |
| Expires | June 20, 2023 |
| Address | Katy, TX 77450 |
| Receiving water | WILLOW FORK DRAINAGE DITCH VA 1; BUFFALO BAYOU |
| Subwatershed | Barker Reservoir-Buffalo Bayou (HUC 120401040104) |
NPDES TX0098957: effluent limits and exceedances
CINCO MUD NO 1 CENTRAL WWTP (NPDES TX0098957): 55 pollutants on file, 55 limited; 49 with a violation of any kind, 4 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| E. coli | 2 | 16 | 16 | June 30, 2026 | 99,999% over the limit |
| Whole effluent toxicity | 4 | 18 | 10 | December 31, 2021 | 99,999% over the limit |
| Copper, total [as Cu] | 3 | 6 | 6 | January 31, 2006 | 656% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 1 | 1 | November 30, 2005 | 40% over the limit |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 15 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 14 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 14 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 12 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 10 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 10 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 10 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 10 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 2 | 10 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 10 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 10 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 2 | 8 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 2 | 8 | 0 | ||
| Arsenic, dry weight | 5 | 5 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 5 | 0 | ||
| pH | 3 | 3 | 0 | ||
| Selenium, dry weight | 3 | 3 | 0 | ||
| Copper, dry weight | 3 | 3 | 0 | ||
| Cadmium, dry weight | 3 | 3 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 3 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 3 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 3 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 3 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 3 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | 1 | 3 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | 1 | 3 | 0 | ||
| Nickel, total [as Ni] | 2 | 2 | 0 | ||
| Level of pathogen requirements achieved | 2 | 2 | 0 | ||
| Description of pathogen option used | 2 | 2 | 0 | ||
| Vector attraction reduction alternative used | 2 | 2 | 0 | ||
| Annual amt sludge transported interstate | 1 | 2 | 0 | ||
| Fecal coliform | 1 | 1 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 1 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 1 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 1 | 0 | ||
| Annual amt of sludge incinerated | 1 | 1 | 0 | ||
| Annual sludge production, total | 1 | 1 | 0 | ||
| Annual amount of sludge land applied | 1 | 1 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 1 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 1 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 1 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 1 | 0 | ||
| Boundary areas | 1 | 1 | 0 | ||
| Salmonella | 1 | 1 | 0 | ||
| Pollutant table from 503.13 | 1 | 1 | 0 | ||
| Solids, total suspended | 3 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 3 | 0 | 0 | ||
| Whole effluent toxicity - retest #1 | 3 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 3 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 0 |
NPDES TX0098957: inspections, violations and enforcement
NPDES TX0098957: 3 single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 23, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| July 7, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| July 11, 2018 | Permit Violations - Violation Specified in Comment | ST6 |
NPDES TX0098957 (CINCO MUD NO 1 CENTRAL WWTP): no inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES TX0098957
NPDES TX0098957: one email when its EPA record changes — $99/month.
Permits near NPDES TX0098957
NPDES TX0098957: 55 pollutant rows, 3 dated events; ICIS-NPDES download, loaded September 15, 2026.