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Granville, MA Tap Water Quality 2026

Water quality report for Granville, MA — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Granville's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Granville Centre Water Co PWSID: MA1112000 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead was not detected and no violations are open. PFAS has never been sampled at this system.

B

Granville earns a B for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: not detected
PFAS never sampled at this system
34 violations since 2015, 0 health-based
No violations currently open
Granville's lead level vs. all Massachusetts community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of Massachusetts utilities
Population Served
260
~30 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
34 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
Not detected
Action level: 15 ppb
Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Consumer Confidence Rule OTHER — — 2025 Unaddressed
Lead and Copper Rule MONITORING AND REPORTING — TT 2025 Addressed
Lead and Copper Rule MONITORING AND REPORTING — TT 2025 Addressed
LASSO MONITORING AND REPORTING — — 2018 Resolved
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2018 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2018 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2018 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2018 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2018 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2018 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2018 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2018 Resolved
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2018 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2018 Resolved
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2018 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2018 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2018 Resolved
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2018 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2018 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2018 Resolved
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2018 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2018 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2018 Resolved
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2018 Resolved
Diquat MONITORING AND REPORTING — 0.02 mg/L 2018 Resolved
Endothall MONITORING AND REPORTING — 0.1 mg/L 2018 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2018 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2018 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2018 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2018 Resolved
Picloram MONITORING AND REPORTING — 0.5 mg/L 2018 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2018 Resolved
2,3,7,8-TCDD MONITORING AND REPORTING — 0.00000003 mg/L 2018 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2016 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

34 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Granville Centre Water Co
PWSID MA1112000
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 260
Service connections 30
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Granville tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Granville water have PFAS? ▼
This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.
Who supplies water to Granville? ▼
Granville Centre Water Co (PWSID MA1112000). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-07-19. No significant deficiencies were recorded.

What Should Granville Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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