Clean Water Act discharge permit · NPDES TX0117854
CYPRESS CREEK WWTP, Cypress, TX: NPDES TX0117854 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
CYPRESS CREEK WWTP, held by HARRIS COUNTY MUD 500, holds NPDES permit TX0117854, which discharges to Cypress Creek. EPA’s file records it issued February 15, 2018 and expiring February 1, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | CYPRESS CREEK WWTP |
|---|---|
| Permittee as filed | HARRIS COUNTY MUD 500 |
| NPDES ID | TX0117854 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 15, 2018 |
| Expiration date | February 1, 2023 |
| Address | Cypress, TX 77433 |
| Receiving water | CYPRESS CREEK |
| Subwatershed | Dry Creek-Cypress Creek (HUC 120401020104) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 37Pollutants on file
- 0Under a numeric limit
- 37With a violation of any kind
- 6With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 0 | 86 | 4 | November 30, 2004 | 900% over the limit |
| Solids, total suspended | 0 | 126 | 3 | February 28, 2025 | 25% over the limit |
| Nitrogen, ammonia total [as N] | 0 | 126 | 2 | May 31, 2001 | 31% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 0 | 125 | 2 | April 30, 2004 | 2,910% over the limit |
| pH | 0 | 86 | 2 | December 31, 2024 | |
| E. coli | 0 | 1 | 1 | November 30, 2025 | 50% over the limit |
| Chlorine, total residual | 0 | 82 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 41 | 0 | ||
| Arsenic, dry weight | 0 | 5 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 0 | 5 | 0 | ||
| Selenium, dry weight | 0 | 3 | 0 | ||
| Copper, dry weight | 0 | 3 | 0 | ||
| Cadmium, dry weight | 0 | 3 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 0 | 3 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 0 | 3 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 0 | 3 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 0 | 3 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 0 | 3 | 0 | ||
| Nickel, total [as Ni] | 0 | 2 | 0 | ||
| Level of pathogen requirements achieved | 0 | 2 | 0 | ||
| Description of pathogen option used | 0 | 2 | 0 | ||
| Vector attraction reduction alternative used | 0 | 2 | 0 | ||
| Fecal coliform | 0 | 1 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 0 | 1 | 0 | ||
| Toxicity characteristic leaching procedure | 0 | 1 | 0 | ||
| Ann. amt sludge disposed by other method | 0 | 1 | 0 | ||
| Annual amt of sludge incinerated | 0 | 1 | 0 | ||
| Annual sludge production, total | 0 | 1 | 0 | ||
| Annual amount of sludge land applied | 0 | 1 | 0 | ||
| Annual amt. sludge disposed surface unit | 0 | 1 | 0 | ||
| Annual amt sludge disposed in landfill | 0 | 1 | 0 | ||
| Annual amt sludge transported interstate | 0 | 1 | 0 | ||
| Unit w/liner/leachate collection system | 0 | 1 | 0 | ||
| Compliance w/part 258 sludge requirement | 0 | 1 | 0 | ||
| Boundary areas | 0 | 1 | 0 | ||
| Salmonella | 0 | 1 | 0 | ||
| Pollutant table from 503.13 | 0 | 1 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 10, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.