Non-Compliance
Clean Water Act
SIENNA PLANTATION WWTP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $34,500 in total penalties since records began.
- Address
-
0.18 MI E OF INTX SIENNA RANCH RD AND DISCOVERY LN
SIENNA PLANTATION, TX 77459
View on map ↗ - County
- FORT BEND County
- Inspections
- 1 · last Sep 15, 2022
- Total Penalties
- $34,500 · last Jan 23, 2025
- Registry ID
- 110009771568
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
2
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| cwa | Permit Violations - Violation Specified in Comment | May 1, 2019 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Mar 14, 2014 | — | Open |
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 51.50 mg/L | 25.00 | +106% | Jan 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 35.59 kg/d | 6.81 | +423% | Jan 2024 | Resolved |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 48.17 kg/d | 34.05 | +41% | Jan 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 21.06 mg/L | 2.00 | +953% | Jan 2024 | Resolved |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 28.70 mg/L | 10.00 | +187% | Jan 2024 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 29.50 mg/L | 10.00 | +195% | Jan 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 21.40 mg/L | 15.00 | +43% | Jan 2024 | Resolved |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 399.00 | +507% | Jan 2024 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.29 mg/L | 2.00 | +465% | Dec 2023 | Resolved |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 19.73 mg/L | 10.00 | +97% | Dec 2023 | Resolved |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 5.80 mg/L | 6.00 | +3% | Dec 2023 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,420.00 MPN/100mL | 399.00 | +507% | Dec 2023 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 86.50 mg/L | 25.00 | +246% | Dec 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 17.16 kg/d | 6.81 | +152% | Dec 2023 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 30.50 mg/L | 10.00 | +205% | Dec 2023 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 21.80 mg/L | 15.00 | +45% | Dec 2023 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 88.00 mg/L | 40.00 | +120% | Dec 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 27.60 mg/L | 10.00 | +176% | Nov 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.09 mg/L | 2.00 | +505% | Nov 2023 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.27 mg/L | 2.00 | +164% | Oct 2023 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 22.50 mg/L | 10.00 | +125% | Oct 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.50 kg/d | 6.81 | +25% | Oct 2023 | Resolved |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.97 MGD | 0.90 | +8% | Sep 2019 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.92 MGD | 0.90 | +2% | Aug 2019 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.93 MGD | 0.90 | +3% | Sep 2018 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 1.01 MGD | 0.90 | +11% | Aug 2017 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.94 MGD | 0.90 | +4% | Jul 2017 | Open |
| Flow, in conduit or thru treatment plant | DMR, Limited - Numeric Violation | 0.91 MGD | 0.90 | +1% | Jun 2017 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.70 mg/L | 10.00 | +17% | Jun 2016 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.49 mg/L | 2.00 | +25% | Jun 2016 | Open |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.
State CWA Penalty AO
Clean Water Act
· Case TX-2024-1268-MWD-E · Jan 23, 2025
$34,500
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