Clean Water Act discharge permit · NPDES TX0136751
BISTONE SURFACE WTP, Mexia, TX: NPDES TX0136751 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 3Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
BISTONE SURFACE WTP, held by BISTONE MUNICIPAL WATER SUPPLY DISTRICT, holds NPDES permit TX0136751, which discharges to Via Pipe To Lake Mexia Spillway Portion Of Navasot. EPA’s file records it issued November 6, 2018 and expiring November 6, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | BISTONE SURFACE WTP |
|---|---|
| Permittee as filed | BISTONE MUNICIPAL WATER SUPPLY DISTRICT |
| NPDES ID | TX0136751 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | November 6, 2018 |
| Expiration date | November 6, 2023 |
| Address | Mexia, TX 76667 |
| Receiving water | VIA PIPE TO LAKE MEXIA SPILLWAY PORTION OF NAVASOT |
| Subwatershed | Cedar Creek-Navasota River (HUC 120701030104) |
| SIC | 4941 – Water Supply |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 3Pollutants on file
- 3Under a numeric limit
- 3With a violation of any kind
- 1With 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 |
|---|---|---|---|---|---|
| pH | 2 | 25 | 1 | December 31, 2022 | |
| Solids, total suspended | 3 | 36 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 22 | 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 |
|---|---|---|
| January 23, 2018 | 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.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, TX0136751.
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID TX0136751 there.
Nearby on the register
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- Every permit record in Mexia, A to Z
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- Every permit record in Texas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.