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Jamestown Water Department

Published drinking-water records and contacts for Jamestown Water Department. System RI1858419. Review sources and dates; not a real-time water assessment.

System ID
RI1858419
State or territory
RI
Published population served
3348
System type (source code)
CWS

Published records and dates

Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.

Published testing results

Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.

“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example

EPA UCMR 5 — most recent imported sample per substance
SubstancePublished resultReporting limitSample dateSampling location
11Cl-PF3OUdS< 0.005 µg/L0.005 µg/L2023-10-17Treatment Plant / EP001
4:2 FTS< 0.003 µg/L0.003 µg/L2023-10-17Treatment Plant / EP001
6:2 FTS< 0.005 µg/L0.005 µg/L2023-10-17Treatment Plant / EP001
8:2 FTS< 0.005 µg/L0.005 µg/L2023-10-17Treatment Plant / EP001
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2023-10-17Treatment Plant / EP001
ADONA< 0.003 µg/L0.003 µg/L2023-10-17Treatment Plant / EP001
HFPO-DA< 0.005 µg/L0.005 µg/L2023-10-17Treatment Plant / EP001
NEtFOSAA< 0.005 µg/L0.005 µg/L2023-10-17Treatment Plant / EP001
NFDHA< 0.02 µg/L0.02 µg/L2023-10-17Treatment Plant / EP001
NMeFOSAA< 0.006 µg/L0.006 µg/L2023-10-17Treatment Plant / EP001
PFBA< 0.005 µg/L0.005 µg/L2023-10-17Treatment Plant / EP001
PFBS< 0.003 µg/L0.003 µg/L2023-10-17Treatment Plant / EP001
PFDA< 0.003 µg/L0.003 µg/L2023-10-17Treatment Plant / EP001
PFDoA< 0.003 µg/L0.003 µg/L2023-10-17Treatment Plant / EP001
PFEESA< 0.003 µg/L0.003 µg/L2023-10-17Treatment Plant / EP001
PFHpA< 0.003 µg/L0.003 µg/L2023-10-17Treatment Plant / EP001
PFHpS< 0.003 µg/L0.003 µg/L2023-10-17Treatment Plant / EP001
PFHxA< 0.003 µg/L0.003 µg/L2023-10-17Treatment Plant / EP001
PFHxS< 0.003 µg/L0.003 µg/L2023-10-17Treatment Plant / EP001
PFMBA< 0.003 µg/L0.003 µg/L2023-10-17Treatment Plant / EP001
PFMPA< 0.004 µg/L0.004 µg/L2023-10-17Treatment Plant / EP001
PFNA< 0.004 µg/L0.004 µg/L2023-10-17Treatment Plant / EP001
PFOA< 0.004 µg/L0.004 µg/L2023-10-17Treatment Plant / EP001
PFOS< 0.004 µg/L0.004 µg/L2023-10-17Treatment Plant / EP001
PFPeA< 0.003 µg/L0.003 µg/L2023-10-17Treatment Plant / EP001
PFPeS< 0.004 µg/L0.004 µg/L2023-10-17Treatment Plant / EP001
PFTA< 0.008 µg/L0.008 µg/L2023-10-17Treatment Plant / EP001
PFTrDA< 0.007 µg/L0.007 µg/L2023-10-17Treatment Plant / EP001
PFUnA< 0.002 µg/L0.002 µg/L2023-10-17Treatment Plant / EP001
lithium< 9 µg/L9 µg/L2023-10-17Treatment Plant / EP001

Download all EPA UCMR 5 records (CSV)

Lead and copper: 90th-percentile summaries

These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile

Eight most recent imported monitoring summaries
SubstancePublished 90th percentileMonitoring periodSource quarter
Lead (PB90) 0.0011 mg/L2023-01-01 – 2025-12-312026Q3
Lead (PB90) 0.005 mg/L2013-01-01 – 2013-06-302026Q3
Lead (PB90) 0.025 mg/L2012-01-01 – 2012-06-302026Q3
Lead (PB90) 0.024 mg/L2011-07-01 – 2011-12-312026Q3
Lead (PB90) 0.089 mg/L2011-01-01 – 2011-06-302026Q3
Lead (PB90) 0.02 mg/L2008-01-01 – 2010-12-312026Q3
Lead (PB90) 0.049 mg/L2010-01-01 – 2010-06-302026Q3
Lead (PB90) 0.048 mg/L2009-07-01 – 2009-12-312026Q3

Published compliance history

11 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.

Twenty most recent imported compliance records
Rule / recordPeriodRecorded statusHealth-based (EPA classification)Source quarter
Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)2025-06-01 – 2025-06-30ResolvedNo2026Q3
Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)2024-10-01 – 2024-10-31ResolvedNo2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)2024-07-01 – 2024-09-30ResolvedNo2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)2024-07-01 – 2024-09-30ResolvedNo2026Q3
Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)2024-01-01 – 2024-01-31ResolvedNo2026Q3
Long Term 2 Enhanced Surface Water Treatment Rule / Monitoring, Source Water (LT2)2017-10-01 – 2017-10-31ResolvedNo2026Q3
Consumer Confidence Rule / Consumer Confidence Report Complete Failure to Report2017-07-01 – —ResolvedNo2026Q3
Surface Water Treatment Rule / Monitoring of Treatment (SWTR-Filter)2017-03-01 – 2017-03-31ResolvedNo2026Q3
Interim and Long Term 1 Enhanced Surface Water Treatment Rule / Monitoring, Turbidity (Enhanced SWTR)2017-03-01 – 2017-03-31ResolvedNo2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)2017-01-01 – 2017-03-31ResolvedNo2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)2017-01-01 – 2017-03-31ResolvedNo2026Q3

Source dates and refresh checks

A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.

Administrative contact (EPA filing)

Gray, Michael: 401-423-7225

An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.

Official state resources · How to read these records