Clean Water Act discharge permit · NPDES TX0117757
CLEAN HARBORS SAN LEON, San Leon, TX: NPDES TX0117757 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 38Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
CLEAN HARBORS SAN LEON, held by CLEAN HARBORS SAN LEON, INC, holds NPDES permit TX0117757, which discharges to Drainage Ditch;Unnamed Tirb;Dickinson Bayou. EPA’s file records it issued December 3, 2018 and expiring December 3, 2021.
CLEAN HARBORS SAN LEON, San Leon, Texas: Individual permit TX0117757, held by CLEAN HARBORS SAN LEON, INC; Administratively continued (past its expiration date and still in force until reissued); issued December 3, 2018, term to December 3, 2021; discharges to DRAINAGE DITCH;UNNAMED TIRB;DICKINSON BAYOU.
- Benzene, ethylbenzene, toluene, xylene combination: 1 limit, 27 violations of any kind, 3 effluent exceedances, latest May 31, 2014, largest 100% over the limit.
- Zinc, total [as Zn]: 11 limits, 26 violations of any kind, 3 effluent exceedances, latest January 31, 2019, largest 109% over the limit.
- pH: 6 limits, 54 violations of any kind, 2 effluent exceedances, latest June 30, 2013.
- Carbon, tot organic [TOC]: 1 limit, 22 violations of any kind, 1 effluent exceedance, latest September 30, 2010, largest 14% over the limit.
- Flow, in conduit or thru treatment plant: 8 limits, 48 violations of any kind, 0 effluent exceedances.
- Oil & Grease: 9 limits, 22 violations of any kind, 0 effluent exceedances.
- Cadmium, total [as Cd]: 8 limits, 4 violations of any kind, 0 effluent exceedances.
- Copper, total [as Cu]: 8 limits, 2 violations of any kind, 0 effluent exceedances.
- Lead, total [as Pb]: 8 limits, 2 violations of any kind, 0 effluent exceedances.
- Mercury, total [as Hg]: 8 limits, 2 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia): 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 2 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 2 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 2 violations of any kind, 0 effluent exceedances.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia): 2 limits, 2 violations of any kind, 0 effluent exceedances.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Nickel, total [as Ni]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Aluminum, total [as Al]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Arsenic, total [as As]: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Chromium, total [as Cr]: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Cobalt, total [as Co]: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Tin, total [as Sn]: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Butyl benzyl phthalate: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Fluoranthene: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Di[2-ethylhexyl] phthalate [DEHP]: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Petrol hydrocarbons, total recoverable: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- n-Decane: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Carbazole: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- n-Octadecane: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #1: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #2: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia): 1 limit, 0 violations of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute Menidia menidia: 1 limit, 0 violations of any kind, 0 effluent exceedances.
CLEAN HARBORS SAN LEON among its neighbors
EPA’s permit file holds 382 discharge permits in the Dickinson Bayou subwatershed (HUC 120402040200), TX0117757 among them. Its county holds 419, 18 of them major permits; TX0117757 is a major permit.
Other permits in the Dickinson Bayou subwatershed (HUC 120402040200)
- 1901 1903 1905 1907 ARIZONA AVENUE, League City: TXR1554YE, minor permit, discharging to CLEAR CREEK, permit term to March 4, 2028
- 2004 CBP, Texas City: TXG113637, minor permit, permit term to November 6, 2026
- 2021 C 99, Alvin: TXR05GM99, minor permit, permit term to August 13, 2026
- 25-206 MITMOD SHELTER EXPANSION, Texas City: TXR1508XH, minor permit, discharging to UNNAMED TRIB TO THE SOUTH ARM OF MOSES LAKE, permit term to March 4, 2028
- 34TH STREET DITCH IMPROVEMENTS, Texas City: TXR1544VR, minor permit, discharging to UNNAMED TRIBUTARY TO THE SOUTHERN ARM OF MOSES LAK, permit term to March 4, 2028
- 4200 PORT INDUSTRIAL ROAD - PORT OF GALVESTON SHOPS, Galveston: TXR05GO18, minor permit, permit term to August 13, 2026
- 639 PASADENA DETENTION POND, Pasadena: TXR1526WQ, minor permit, discharging to WILLOW SPRINGS BAYOU, permit term to March 4, 2028
- ACC HOU - HITCHCOCK, Hitchcock: TXR05GS04, minor permit, permit term to August 13, 2026
- AGS SOLUTIONS, Houston: TXRNEBX81, minor permit, permit term to August 13, 2026
- AGS SOLUTIONS, Houston: TXRNECN87, minor permit, permit term to August 13, 2026
Identity
| Facility as filed | CLEAN HARBORS SAN LEON |
|---|---|
| Permittee as filed | CLEAN HARBORS SAN LEON, INC |
| NPDES ID | TX0117757 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 3, 2018 |
| Expiration date | December 3, 2021 |
| Address | San Leon, TX 77539 |
| Receiving water | DRAINAGE DITCH;UNNAMED TIRB;DICKINSON BAYOU |
| Subwatershed | Dickinson Bayou (HUC 120402040200) |
| SIC | 1311 – Crude Petroleum And Natural Gas |
| Other EPA IDs (FRS) | RCRA handler TXD981053770; ICIS-AIR source TX0000004816700042 |
Effluent limits and exceedances
- 40Pollutants on file
- 38Under a numeric limit
- 24With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Benzene, ethylbenzene, toluene, xylene combination | 1 | 27 | 3 | May 31, 2014 | 100% over the limit |
| Zinc, total [as Zn] | 11 | 26 | 3 | January 31, 2019 | 109% over the limit |
| pH | 6 | 54 | 2 | June 30, 2013 | |
| Carbon, tot organic [TOC] | 1 | 22 | 1 | September 30, 2010 | 14% over the limit |
| Flow, in conduit or thru treatment plant | 8 | 48 | 0 | ||
| Oil & Grease | 9 | 22 | 0 | ||
| Cadmium, total [as Cd] | 8 | 4 | 0 | ||
| Copper, total [as Cu] | 8 | 2 | 0 | ||
| Lead, total [as Pb] | 8 | 2 | 0 | ||
| Mercury, total [as Hg] | 8 | 2 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 2 | 2 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 2 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 2 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 2 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 2 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 2 | 2 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| Nickel, total [as Ni] | 0 | 2 | 0 | ||
| Aluminum, total [as Al] | 0 | 2 | 0 | ||
| Solids, total suspended | 8 | 0 | 0 | ||
| Arsenic, total [as As] | 8 | 0 | 0 | ||
| Chromium, total [as Cr] | 8 | 0 | 0 | ||
| Cobalt, total [as Co] | 8 | 0 | 0 | ||
| Tin, total [as Sn] | 8 | 0 | 0 | ||
| Butyl benzyl phthalate | 8 | 0 | 0 | ||
| Fluoranthene | 8 | 0 | 0 | ||
| Di[2-ethylhexyl] phthalate [DEHP] | 8 | 0 | 0 | ||
| Petrol hydrocarbons, total recoverable | 8 | 0 | 0 | ||
| n-Decane | 8 | 0 | 0 | ||
| Carbazole | 8 | 0 | 0 | ||
| n-Octadecane | 8 | 0 | 0 | ||
| Whole effluent toxicity - retest #1 | 3 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 3 | 0 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 1 | 0 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Menidia menidia | 1 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0117757.
Inspections
EPA’s inspection file holds no inspection for NPDES TX0117757.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES TX0117757.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.