Passage Data · Check a report · Use it from your AI
Sewage treatment plant, major discharger, Houston, Texas. NPDES permit TX0096172 expired Sep 1, 2002; its limits still apply. Last 12 months: over a limit 11 times (last June 2026), 3 of 46 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| February 2026 | 003 | BOD, carbonaceous [5 day, 20 C], daily maximum | 32 mg/L | ≤ 25 mg/L | 28% |
| February 2026 | 003 | Nitrogen, ammonia total [as N], daily maximum | 11 mg/L | ≤ 10 mg/L | 10% |
| April 2026 | 001 | Nitrogen, ammonia total [as N], daily average | 4 mg/L | ≤ 3 mg/L | 33% |
| April 2026 | 003 | Nitrogen, ammonia total [as N], daily average | 4 mg/L | ≤ 3 mg/L | 33% |
| May 2026 | 001 | Nitrogen, ammonia total [as N], daily average | 5 mg/L | ≤ 3 mg/L | 67% |
| May 2026 | 001 | Solids, total suspended, daily maximum | 49 mg/L | ≤ 40 mg/L | 23% |
| May 2026 | 003 | Nitrogen, ammonia total [as N], daily average | 5 mg/L | ≤ 3 mg/L | 67% |
| May 2026 | 003 | Solids, total suspended, daily maximum | 54 mg/L | ≤ 40 mg/L | 35% |
| June 2026 | 001 | BOD, carbonaceous [5 day, 20 C], daily maximum | > 22 mg/L | ≤ 25 mg/L | — |
| June 2026 | 001 | Nitrogen, ammonia total [as N], daily average | 4 mg/L | ≤ 3 mg/L | 33% |
| June 2026 | 003 | Nitrogen, ammonia total [as N], daily average | 4 mg/L | ≤ 3 mg/L | 33% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | monthly minimum | ≥ 4 mg/L | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | daily average | ≤ 15 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | 001 |
| Solids, total suspended | daily average | ≤ 25020 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 3 mg/L | Apr–Oct | 001 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 5 mg/L | Jan, Feb, Mar, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10 mg/L | Apr–Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10 mg/L | Jan, Feb, Mar, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 5004 lb/d | Apr–Oct | 001 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 8340 lb/d | Jan, Feb, Mar, Nov, Dec | 001 |
| Copper, total [as Cu] | daily average | ≤ .0055 mg/L | all year | 001 |
| Copper, total [as Cu] | daily maximum | ≤ .0116 mg/L | all year | 001 |
| Copper, total [as Cu] | daily average | ≤ 9.2 lb/d | all year | 001 |
| Nickel, total [as Ni] | daily average | report only (mg/L) | all year | 001 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 001 |
| Nickel, total [as Ni] | daily average | report only (lb/d) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | 2-hour peak | ≤ 277777 gal/min | all year | 001 |
| Flow, in conduit or thru treatment plant | annual average | ≤ 200 MGD | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .099 mg/L | all year | 001 |
| Chlorine, total residual | monthly minimum | ≥ 1 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 10 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 25 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 16680 lb/d | all year | 001 |
| Oxygen, dissolved [DO] | monthly minimum | report only (mg/L) | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | daily average | report only (mg/L) | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 002 |
| Solids, total suspended | daily average | report only (lb/d) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily average | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily average | report only (lb/d) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Chlorine, total residual | monthly maximum | report only (mg/L) | all year | 002 |
| Coliform, fecal general | monthly geometric mean | report only (#/100mL) | all year | 002 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily average | report only (mg/L) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily average | report only (lb/d) | all year | 002 |
| Solids, total suspended | daily average | ≤ 15 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | 003 |
| Solids, total suspended | daily average | ≤ 25020 lb/d | all year | 003 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 3 mg/L | Apr–Oct | 003 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 5 mg/L | Jan, Feb, Mar, Nov, Dec | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10 mg/L | Apr–Oct | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10 mg/L | Jan, Feb, Mar, Nov, Dec | 003 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 5004 lb/d | Apr–Oct | 003 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 8340 lb/d | Jan, Feb, Mar, Nov, Dec | 003 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | annual average | ≤ 200 MGD | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 10 mg/L | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 25 mg/L | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 16680 lb/d | all year | 003 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | monthly average minimum | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | monthly average minimum | report only (%) | all year | TX1 |
| LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | single sample | report only (pass=0;fail=1) | all year | TXA |
| LC50 Pass/Fail Static 24Hr Acute Menidia menidia | single sample | report only (pass=0;fail=1) | all year | TXA |
| LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | single sample | report only (pass=0;fail=1) | all year | TXB |
| LC50 Pass/Fail Static 24Hr Acute Menidia menidia | single sample | report only (pass=0;fail=1) | all year | TXB |
Cited limits by parameter: Texas's rules and the federal ones.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/TX0096172 · MCP: https://passage-data.com/mcp