Non-Compliance
Clean Water Act
STONE BARN RENTALS STP
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- Address
-
100 STONE BARN DR
KENNETT SQUARE, PA 19348
View on map ↗ - County
- CHESTER County
- Inspections
- 5 · last Sep 9, 2025
- Total Penalties
- $0 · last May 19, 2015
- Registry ID
- 110000927551
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.
9
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
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 |
|---|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 12.54 mg/L | 9.00 | +39% | Jan 2026 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 26.55 mg/L | 24.00 | +11% | Jan 2026 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 29.50 mg/L | 24.00 | +23% | Oct 2025 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 32.05 mg/L | 24.00 | +34% | Sep 2025 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.50 mg/L | 2.00 | +75% | Sep 2025 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 31.32 mg/L | 24.00 | +30% | Mar 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 22.80 mg/L | 9.00 | +153% | Feb 2025 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 54.24 mg/L | 24.00 | +126% | Feb 2025 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 18.34 mg/L | 9.00 | +104% | Jan 2025 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 43.84 mg/L | 24.00 | +83% | Jan 2025 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 30.00 mg/L | 24.00 | +25% | Apr 2024 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 28.02 mg/L | 24.00 | +17% | Mar 2024 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.12 mg/L | 2.00 | +6% | Apr 2023 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 25.90 mg/L | 24.00 | +8% | Feb 2023 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 1,203.00 MPN/100mL | 1,000.00 | +20% | Feb 2023 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.35 mg/L | 3.00 | +45% | Jun 2022 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.24 mg/L | 3.00 | +41% | Oct 2021 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 27.92 mg/L | 24.00 | +16% | Mar 2021 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 26.99 mg/L | 24.00 | +12% | Feb 2021 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 25.11 mg/L | 24.00 | +5% | Jan 2021 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 29.63 mg/L | 24.00 | +23% | Dec 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 31.25 mg/L | 24.00 | +30% | Nov 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 28.65 mg/L | 24.00 | +19% | Oct 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 26.25 mg/L | 24.00 | +9% | Sep 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 26.88 mg/L | 24.00 | +12% | Aug 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 27.54 mg/L | 24.00 | +15% | Jul 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 29.70 mg/L | 24.00 | +24% | Jun 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 33.70 mg/L | 24.00 | +40% | May 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 32.74 mg/L | 24.00 | +36% | Apr 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 28.93 mg/L | 24.00 | +21% | Feb 2020 | Resolved |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 26.53 mg/L | 24.00 | +11% | Jan 2020 | Resolved |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 11.14 mg/L | 9.00 | +24% | Jan 2020 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 62.27 mg/L | 24.00 | +159% | Nov 2019 | Resolved |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.13 mg/L | 2.00 | +7% | Jan 2019 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 2.04 mg/L | 2.00 | +2% | Jul 2017 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 3.74 mg/L | 2.00 | +87% | Feb 2017 | 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 PA-0040665_05192015 · May 19, 2015
$3,000
State CWA Penalty AO
Clean Water Act
· Case PA-0040665_08142009 · Aug 14, 2009
$1,650
Other facilities in CHESTER County, PA
RED BARN FARMS
EAST WHITELAND, TOWNSHIP OF, PA
FEDEX NATL LTL
CHESTER SPRINGS, PA
· Transportation and Warehousing
THE RESERVE AT MACOBY RUN RENEWAL
UPPER HANOVER TOWNSHIP, PA
BRANDYWINE MACH CO INC
DOWNINGTOWN, PA
· Manufacturing
WAWA FOOD MKT 118
DOWNINGTOWN, PA
TAYLOR RUN WASTEWATER TREATMENT PLANT
WEST CHESTER, PA
· Utilities