EPA SDWIS DataRhode Island

PFAS (Per- and Polyfluoroalkyl Substances) in Rhode Island Drinking Water

Rhode Island has a 46.2% PFAS detection rate with 10 systems exceeding the EPA 4 ppt MCL.

Total Systems

1,147

Systems Tested

78

Detection Rate

46.2%

Population Served

1.1M

PFAS (Per- and Polyfluoroalkyl Substances) in Rhode Island: Key Facts

Detection Rate

46.2%

Systems Exceeding MCL

10

Max Level Detected

38 ppt

EPA MCL

4 ppt

EPA Standard

0.000004 mg/L

MCLG (goal): 0 mg/L

Water Systems with Violations in Rhode Island

SystemPopulationViolations
BETHEL VILLAGE WATER ASSN180600
AEGEAN PIZZA155589
CHIMERA INC133562
NEW ENGLAND FARMS75546
PRUDENCE ISLAND WATER DISTRICT2K506
ROCKLAND OAKS AN026469
LAWRENCE SUNSET COVE ASSOCIATION36449
COOPER HILL OFFICE COMPLEX75418

Health Effects of PFAS (Per- and Polyfluoroalkyl Substances) Exposure

Cancer risk

PFOA and PFOS linked to kidney and testicular cancers

Immune disruption

Reduced vaccine response and immune function

Thyroid and hormonal effects

Disrupts thyroid and reproductive hormones

Developmental harm

Fetal and child development impacts

Increased risk of certain cancers, immune system effects, thyroid hormone disruption, high cholesterol, reproductive effects.

Frequently Asked Questions

Is there pfas (per- and polyfluoroalkyl substances) in Rhode Island water?

Yes. Rhode Island has a 46.2% PFAS detection rate across 78 tested water systems. 10 systems exceed the EPA 4 ppt MCL for PFOA/PFOS.

How can I check my Rhode Island water for pfas (per- and polyfluoroalkyl substances)?

Search for your water system using the WaterCheck system lookup, or contact your utility and request a copy of your Consumer Confidence Report (CCR). The CCR is published annually and lists all detected contaminants, their levels, and the EPA MCLs. For private wells, contact a state-certified lab for independent testing.

What is the EPA limit for pfas (per- and polyfluoroalkyl substances)?

The EPA Maximum Contaminant Level (MCL) for pfas (per- and polyfluoroalkyl substances) is 0.000004 mg/L. Systems that exceed MCLs are required to notify customers and take corrective action.

PFAS (Per- and Polyfluoroalkyl Substances) at a Glance

Categoryemerging contaminant
EPA MCL0.000004 mg/L

Source

Industrial discharges, firefighting foam (AFFF), non-stick cookware coatings, water-resistant fabrics

How to Filter PFAS (Per- and Polyfluoroalkyl Substances)

  • +Reverse osmosis is most effective against PFAS (90-95% removal)
  • +Granular activated carbon (GAC) filters reduce some PFAS
  • +Look for NSF/ANSI 58 or 62 certified systems
  • +Standard pitcher filters offer limited protection