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Knoll Inc

Wood Office Furniture, East Greenville, Pennsylvania. NPDES permit PA0011070 expired Mar 31, 2026; its limits still apply. Last 12 months: over a limit 2 times (last December 2025), 19 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (2 values), outfall 201 form A monthly (17 values), outfall 001 form Y yearly, outfall 002 form Y yearly, outfall 003 form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
25 values over a limit, 2 required values missing, 0 of 27 reports late

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

Period endingParameterReportedLimitOver by
December 2025Chlorine, total residual, instantaneous maximum2.2 mg/L≤ 1.3 mg/L69%
December 2025Nitrogen, ammonia total [as N], monthly average32.8 mg/L≤ 20 mg/L64%

Limits in force (38)

ParameterStatisticLimitMonthsOutfall
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year001
pHdaily maximumreport only (SU)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Oil & Greasedaily maximumreport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly average≤ .5 mg/Lall year001
Phosphorus, total [as P]monthly average≤ .02 lb/dall year001
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year001
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year001
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year002
pHdaily maximumreport only (SU)all year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Oil & Greasedaily maximumreport only (mg/L)all year002
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year002
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year002
Solids, total suspendeddaily maximumreport only (mg/L)all year003
Oil & Greasedaily maximumreport only (mg/L)all year003
pHinstantaneous minimum≥ 6 SUall year201
pHinstantaneous maximum≤ 9 SUall year201
Solids, total suspendedmonthly average≤ 30 mg/Lall year201
Solids, total suspendeddaily maximum≤ 45 mg/Lall year201
Solids, total suspendedmonthly average≤ 1.251 lb/dall year201
Solids, total suspendeddaily maximum≤ 1.88 lb/dall year201
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/LMay–Oct201
Nitrogen, ammonia total [as N]monthly average≤ 20 mg/LJan, Feb, Mar, Apr, Nov, Dec201
Nitrogen, ammonia total [as N]monthly average≤ .417 lb/dMay–Oct201
Nitrogen, ammonia total [as N]monthly average≤ .834 lb/dJan, Feb, Mar, Apr, Nov, Dec201
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year201
Chlorine, total residualmonthly average≤ .5 mg/Lall year201
Chlorine, total residualinstantaneous maximum≤ 1.3 mg/Lall year201
Coliform, fecal generalgeometric mean≤ 200 #/100mLall year201
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLall year201
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year201
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 40 mg/Lall year201
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1.04 lb/dall year201
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 1.668 lb/dall year201

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0011070 · MCP: https://passage-data.com/mcp