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Stone Barn Inc

Eating Places, Kennett Square, Pennsylvania. NPDES permit PA0040665, in force until Aug 31, 2028. Last 12 months: over a limit 12 times (last June 2026), 15 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (15 values)
Renewal application due
Mar 4, 2028 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
7 values over a limit, 0 required values missing, 0 of 12 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
October 2025Nitrogen, total [as N], monthly average< 29.5 mg/L≤ 24 mg/L23%
January 2026Nitrogen, ammonia total [as N], monthly average12.54 mg/L≤ 9 mg/L39%
January 2026Nitrogen, total [as N], monthly average26.55 mg/L≤ 24 mg/L11%
February 2026Coliform, fecal general, instantaneous maximum1203.3 #/100mL≤ 1000 #/100mL20%
February 2026Nitrogen, ammonia total [as N], monthly average15.72 mg/L≤ 9 mg/L75%
February 2026Nitrogen, total [as N], monthly average41.05 mg/L≤ 24 mg/L71%
February 2026Phosphorus, total [as P], monthly average2.65 mg/L≤ 2 mg/L33%
February 2026Solids, total suspended, monthly average21.4 mg/L≤ 20 mg/L7%
April 2026Phosphorus, total [as P], monthly average3.2 mg/L≤ 2 mg/L60%
April 2026Solids, total suspended, monthly average20.3 mg/L≤ 20 mg/L2%
May 2026Phosphorus, total [as P], monthly average2.13 mg/L≤ 2 mg/L7%
June 2026Phosphorus, total [as P], monthly average2.7 mg/L≤ 2 mg/L35%

Limits in force (17)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Nitrogen, total [as N]monthly average≤ 24 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 9 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly average≤ 2 mg/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Chlorine, total residualmonthly average≤ .5 mg/Lall year
Chlorine, total residualinstantaneous maximum≤ 1.17 mg/Lall year
Coliform, fecal generalgeometric mean≤ 200 #/100mLall year
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/LMay–Oct

How strict are these limits?

Cited limits by parameter: Pennsylvania's rules and the federal ones.

Same industry: the 22 Eating and Drinking Places permits in Pennsylvania.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0040665 · MCP: https://passage-data.com/mcp