Passage Data · Check a report · Use it from your AI

City of Pawtucket, Pawtucket WSB

Water Supply, Pawtucket, Rhode Island. NPDES permit RI0001589 expired Feb 29, 2024; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 002 form B monthly (14 values), outfall 002 form Q quarterly (8 values), outfall 003 form A monthly (4 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 28 reports late

Limits in force (26)

ParameterStatisticLimitMonthsOutfall
Turbiditymonthly averagereport only (NTU)all year002
Turbiditydaily maximumreport only (NTU)all year002
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 30 mg/Lall year002
Solids, total suspendeddaily maximum≤ 50 mg/Lall year002
Solids, total suspendedmonthly average≤ 200 lb/dall year002
Solids, total suspendeddaily maximum≤ 300 lb/dall year002
Phosphorus, total [as P]monthly averagereport only (mg/L)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
Cadmium, total [as Cd]monthly averagereport only (ug/L)all year002
Cadmium, total [as Cd]daily maximumreport only (ug/L)all year002
Iron, total [as Fe]monthly averagereport only (ug/L)all year002
Iron, total [as Fe]daily maximumreport only (ug/L)all year002
Lead, total [as Pb]monthly averagereport only (ug/L)all year002
Lead, total [as Pb]daily maximumreport only (ug/L)all year002
Aluminum, total [as Al]monthly average≤ 3.3 mg/Lall year002
Aluminum, total [as Al]daily maximum≤ 28.7 mg/Lall year002
Flow, in conduit or thru treatment plantmonthly average≤ 1.6 MGDall year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Chlorine, total residualmonthly average≤ .53 mg/Lall year002
Chlorine, total residualdaily maximum≤ .91 mg/Lall year002
pHminimum≥ 6.5 SUall year003
pHmaximum≤ 9 SUall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003

How strict are these limits?

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

Same industry: the 4 Water Supply permits in Rhode Island.

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

· 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/RI0001589 · MCP: https://passage-data.com/mcp