WaterVerge

Is Gill, MA Tap Water Safe to Drink?

Graded A-, with 5 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

1K residents served 2 water systems PWSID: MA1106002
Overall Score
85.1 / 100
Violations
5 active
Last Updated
May 2026
Source
Groundwater
#113 of 280 in Massachusetts Top 35% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
85.1/100
waterverge.com
A- 85.1/100

Gill, MA — Water Quality Report

Gill's drinking water received a grade of A- (85.1 out of 100), indicating good water quality. The city's 2 water systems serve approximately 1,091 residents using groundwater.

Lead levels were measured at 1.3 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 7 violations on record, including 0 health-based violations. 5 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Gill's water

Gill ranks #113 out of 280 cities in Massachusetts for water quality, placing it mid-range in the state.

Gill relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

As a small community water system, Gill may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
85.1 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
43.1/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 1.3 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
0/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Gill, MA water safe to drink?

Concerns Identified

Gill's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (85.1/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 1,091 residents using groundwater (wells).

5
Active Violations
1.3 ppb
Lead (90th %ile)
7 events
Disaster History

Recent water quality updates for Gill

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Gill's water quality assessment. Grade: A- (85.1/100).

Disaster
HURRICANE LEE

Federal disaster declaration (FEMA DR-3599). Hurricane event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
2 drinking water violations recorded

Contaminants: TTHM, Total Haloacetic Acids (HAA5).

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Disaster
HURRICANE SANDY

Federal disaster declaration (FEMA DR-3350). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Gill's water supply.

Lead Within Limits
Detected: 1.3 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Gill's water system has 7 total violations on record, including 0 health-based violations. 5 remain unresolved.

MROther
Most recent violations:
Jun 2020 Lead and Copper Rule Open
Aug 2019 TTHM Resolved
Aug 2019 Total Haloacetic Acids (HAA5) Resolved
Jul 2016 Consumer Confidence Rule Open
Jun 2015 Lead and Copper Rule Open

Flood & environmental risk

Franklin County has experienced 7 federally declared disasters since 1985. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Ashuelot River, Connecticut River, Millers River.

HURRICANE LEE
Hurricane FEMA DR-3599
HURRICANE SANDY
Hurricane FEMA DR-3350
TROPICAL STORM IRENE
Hurricane FEMA DR-4028

Where does Gill's water come from?

Gill's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 1,091 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Ashuelot River (river), Connecticut River (river), Millers River (river).

What Gill residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Gill's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Gill's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
1.3 ppb
EPA Action Level: 15 ppb · 9% of limit
Safe Level
Compliance Record

Violation summary

7
Total violations
0
Health-based
5
Active / unresolved
Jun 2020
Most recent violation
Compliance Record

Violations & advisories

7 Total
5 Active
0 Health-based
2 Resolved
2 SNC
Violations by category
Lead and Copper Rule
2
Stage 2 Disinfectants and Disinfection Byproducts Rule
2
Consumer Confidence Rule
1
Jun 2020 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2016 Active
Consumer Confidence Rule
Other Violation 0
Jun 2015 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Active
Compliance Violation
Monitoring 0
Aug 2019 Resolved
TTHM
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Aug 2019
Aug 2019 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Aug 2019
Environmental Risk

Drought conditions

D1 — moderate drought

Franklin County is currently in D1 (moderate drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

7.4%
Months in D2+ (last 30y)
6
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

7
Declared disasters
Sep 2023
Most recent
Hurricane
Most common type

Franklin County has experienced 7 federally declared disasters since 1985. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2023
HURRICANE LEE
Hurricane FEMA #3599
Oct 2012
HURRICANE SANDY
Hurricane FEMA #3350
Sep 2011
TROPICAL STORM IRENE
Hurricane FEMA #4028
Aug 2011
HURRICANE IRENE
Hurricane FEMA #3330
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3252
Apr 1987
SEVERE STORMS & FLOODING
Flood FEMA #790

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 1.3 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 0.7 ppb from 1993 (2.0 ppb) to 2025 (1.3 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Private
Population Served
1,091
Water Systems
2
Source breakdown
Groundwater
1
Purchased Surface Water
1
Water Source

Where Gill's water comes from

Groundwater

Gill's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by private ownership and serves approximately 1,091 people through 2 water systems.

Local Hydrology

Water bodies near Gill

Gill is located near 3 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Ashuelot River
river
Connecticut River
river
Millers River
river
Infrastructure

Water systems serving Gill

System Name PWSID Population Source
NORTHFIELD MT HERMON SCHOOL MA1106002 750 GW
RIVERSIDE WATER DISTRICT MA1106000 341 SWP
Regional Comparison

Gill's score of 85.1/100 is above the average of 80/100 among major Massachusetts cities. It outscores 7 of 10 nearby cities.

Gill (this city)
85.1
Boston
76.8
Worcester
78.9
Beverly
87.5
Massachusetts avg
80
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Frequently asked questions

Is Gill, MA tap water safe to drink?

Gill's water quality earned a grade of A- (85.1/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #113 out of 280 cities tested in Massachusetts.

What contaminants are in Gill's water?

Lead was measured at 1.3 ppb (90th percentile). 7 violations are on record.

How is Gill's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Gill?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Gill's water come from?

Gill's water is sourced from Groundwater. The city has 2 water systems serving approximately 1,091 residents.

Is Gill's groundwater at risk of contamination?

Gill uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 7 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Gill's water compare to other cities?

Gill ranks #113 out of 280 cities in Massachusetts (better than 60% of state cities) and #5519 out of 15744 cities nationally (65th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.