Is Norridgewock, ME Tap Water Safe to Drink?
Graded A, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
92/100
waterverge.com Norridgewock, ME — Water Quality Report
Norridgewock's drinking water received a grade of A (92 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 1,055 residents using groundwater.
Lead levels were measured at 1.9 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 35 violations on record, including 6 health-based violations. 3 remain unresolved.
What to know about Norridgewock's water
Norridgewock ranks #26 out of 168 cities in Maine for water quality, placing it above average in the state.
Norridgewock 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, Norridgewock may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Norridgewock, ME water safe to drink?
Norridgewock's drinking water has significant quality concerns based on EPA testing data. With a grade of A (92/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,055 residents using groundwater (wells).
Recent water quality updates for Norridgewock
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Norridgewock's water quality assessment. Grade: A (92/100).
Federal disaster declaration (FEMA DR-3598). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4719). Flood event — may have impacted local water infrastructure.
Contaminants: Revised Total Coliform Rule.
Contaminants: E. COLI.
1 health-based. Contaminants: Coliform (TCR).
Key contaminant findings
Based on the most recent EPA sampling data for Norridgewock's water supply.
Well within EPA limits.
Violation history
Norridgewock's water system has 35 total violations on record, including 6 health-based violations. 3 remain unresolved.
Flood & environmental risk
Somerset County has experienced 10 federally declared disasters since 1970. 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 Kennebec River Near Madison, Maine, Sandy River Near Mercer, Maine.
Where does Norridgewock's water come from?
Norridgewock's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,055 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Kennebec River Near Madison, Maine (river), Sandy River Near Mercer, Maine (river).
What Norridgewock residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Norridgewock's water.
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.
Norridgewock'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.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Norridgewock
Industrial polluters nearby
Reported releases to surface water by facilities near Norridgewock, ranked by pounds discharged annually.
Total reported releases to surface water: 230,724 lbs
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
SAPPI N.A. INC. - SOMERSET OPERATIONS SKOWHEGAN, ME04976 | Manganese compounds | 230,724 | 6.2 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Drought conditions
D2 — severe droughtSomerset County is currently in D2 (severe 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.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
Flood & disaster history
Somerset County has experienced 10 federally declared disasters since 1970. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 1.9 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Norridgewock compares by contaminant
Explore where Norridgewock ranks among all Maine cities for specific contaminants.
Water source & infrastructure
Where Norridgewock's water comes from
Norridgewock'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 local government ownership and serves approximately 1,055 people through 1 water system.
Water bodies near Norridgewock
Norridgewock is located near 2 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Norridgewock
| System Name | PWSID | Population | Source |
|---|---|---|---|
| NORRIDGEWOCK WATER DISTRICT | ME0091110 | 1,055 | GW |
How Norridgewock compares
Full Maine rankings →Norridgewock's score of 92/100 is above the average of 82/100 among major Maine cities. It outscores 5 of 10 nearby cities.
Nearby cities
View Maine rankings →About Norridgewock, ME
Learn more about your water
Guides and resources related to Norridgewock's water quality findings.
Explore water quality across Somerset
Frequently asked questions
Is Norridgewock, ME tap water safe to drink?
Norridgewock's water quality earned a grade of A (92/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #26 out of 168 cities tested in Maine.
What contaminants are in Norridgewock's water?
Lead was measured at 1.9 ppb (90th percentile). 35 violations are on record.
How is Norridgewock'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 Norridgewock?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Norridgewock's water come from?
Norridgewock's water is sourced from Groundwater. The city has 1 water system serving approximately 1,055 residents.
What health violations has Norridgewock's water system had?
Norridgewock has 6 health-based violations on record. The most recent violation was recorded in October 2018. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.
Is Norridgewock's groundwater at risk of contamination?
Norridgewock 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 35 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 Norridgewock's water compare to other cities?
Norridgewock ranks #26 out of 168 cities in Maine (better than 85% of state cities) and #1424 out of 15744 cities nationally (91th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Norridgewock's small water system affect quality?
Norridgewock's system serves approximately 1,055 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 35 violations on record.