EPA data as of Oct 2026 · page updated 2026-10-29

Upper Cape Regional Water Cooperative

Upper Cape Regional Water Cooperative (EPA ID MA4261024) in Sandwich, MA supplies groundwater (wells) to about 56,250 people: no health-based violations since 2016, latest lead result No data, PFAS not detected.

System facts

People served56,250
Connections6
Sourcegroundwater (wells)
WholesalerYes

Health-based violations

No health-based violations reported since 2016.

Lead

No lead sampling results on file.

PFAS

CompoundHighest resultSamples with detectionEPA limit
HFPO-DA (GenX)not detected0 of 6—
PFBAnot detected0 of 6—
PFPeAnot detected0 of 6—
PFHpAnot detected0 of 6—
PFBSnot detected0 of 6—
PFHxSnot detected0 of 6—
PFNAnot detected0 of 6—
PFOSnot detected0 of 64 ppt MCL
PFOAnot detected0 of 64 ppt MCL
PFDAnot detected0 of 6—
PFHxAnot detected0 of 6—

EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), samples 2023–2025; ppt = parts per trillion (ng/L). The 4.0 ppt maximum contaminant levels for PFOA and PFOS were set by EPA in 2024; water systems have until the end of the decade to comply.

ZIP codes served

ZIP codes whose center lies in this system’s service area or that the state lists for it.

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions

Has Upper Cape Regional Water Cooperative had drinking water violations?

No health-based violations reported since 2016.

What is the lead level in Upper Cape Regional Water Cooperative water?

No lead sampling results on file for this system.

Does Upper Cape Regional Water Cooperative have PFAS in its water?

None of the tested PFAS were found above EPA’s reporting limits in 2023–2025.