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

Town of Jamestown

Water Supply, Jamestown, Rhode Island. NPDES permit RI0001619 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: form A monthly (14 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (14)

ParameterStatisticLimitMonths
Turbiditymonthly averagereport only (NTU)all year
Turbiditydaily maximumreport only (NTU)all year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 50 mg/Lall year
Solids, total suspendedmonthly average≤ 6 lb/dall year
Solids, total suspendeddaily maximum≤ 10 lb/dall year
Aluminum, total [as Al]monthly averagereport only (ug/L)all year
Aluminum, total [as Al]daily maximumreport only (ug/L)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ 20 ug/Lall year
Chlorine, total residualdaily maximum≤ 20 ug/Lall year

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/RI0001619 · MCP: https://passage-data.com/mcp