Water Quality in Presque Isle, ME: 14 Violations — Grade C
Grade C · Score 60/100 · 5 water systems · Updated 2026-05-03
Presque Isle's water has moderate compliance issues. Residents in affected areas should consider filtration.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
Available EPA records for Presque Isle, ME: 14 water compliance violations tied to local public water systems.
Water Quality by ZIP Code in Presque Isle
Water quality varies across Presque Isle's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 04769 | C | 60 | 14 | 2 | View report → |
Water Quality Overview
Presque Isle, Maine receives a water quality grade of C with an overall score of 60 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 5 water systems serving Presque Isle have accumulated 14 EPA violations, including 2 health-based violations. These violations are tracked across 1 ZIP codes serving approximately 6,479 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Presque Isle's water systems have some violations that warrant attention. While the water may still be safe for most people, residents in affected ZIP codes should consider additional testing or filtration.
Lead Levels
The average 90th percentile lead level across Presque Isle water systems is 0.0015 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 78% of homes built before 1986, Presque Isle has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.
Radon Risk
Presque Isle is in EPA Radon Zone 1 (High risk). The EPA recommends all homes in Zone 1 areas be tested for radon. Radon is the second leading cause of lung cancer after smoking.
Water Systems Serving Presque Isle
Presque Isle is served by 5 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 6,479 people across 1 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
The EPA has taken 10 enforcement actions against water systems serving Presque Isle. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Presque Isle
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
Contaminants Detected in Presque Isle Water Systems
The following contaminants have been detected or caused violations across Presque Isle's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | N/A | 2 | 1 | No |
| Surface Water Treatment Rule | Treatment Technique | N/A | 2 | 1 | No |
| Selenium | Inorganic | 0.05 mg/L | 2 | 1 | Yes |
| Lead | Inorganic | 0.015 mg/L | 2 | 1 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 0.08 mg/L | 1 | 1 | No |
| Gross Alpha | Radionuclides | 15 pCi/L | 1 | 1 | No |
| Gross Beta | Radionuclides | 50 pCi/L | 1 | 1 | No |
| Lead and Copper Rule | Treatment Technique | N/A | 1 | 1 | No |
MCL = Maximum Contaminant Level (EPA enforceable standard). Health-based violations indicate levels that may pose direct health risks.
EPA Enforcement History
The EPA and state regulators have taken 6 enforcement actions against water systems serving Presque Isle. Recent actions:
| Date | Action Type |
|---|---|
| 2025-06-12 | State Informal Action |
| 2025-03-14 | State Order Extension |
| 2025-02-24 | State Filed Judgment |
| 2025-02-24 | State Informal Enforcement |
| 2024-03-04 | State Filed Judgment |
| 2023-05-11 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-06-12.
Presque Isle vs. Nearby Maine Cities
How Presque Isle's water quality compares to similar cities in Maine:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Presque Isle | C | 14 | 5 | 6,479 |
| Skowhegan | C | 6 | 3 | 6,488 |
| Orono | D | 8 | 5 | 6,063 |
| Belfast | B | 15 | 4 | 5,901 |
Common Questions About Presque Isle Water
These are the most common questions residents search for about water quality in Presque Isle, Maine:
Is Presque Isle water hard or soft? Water hardness varies by source. Presque Isle's 5 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Presque Isle tap water? Presque Isle's water receives a grade of C (60/100). There are 2 health-based violations — consider filtration.
What is the best water filter for Presque Isle? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Presque Isle vs. Maine Average
Understanding how Presque Isle compares to the broader Maine average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within Presque Isle.
ZIP Codes in Presque Isle
Presque Isle spans 1 ZIP code. The ZIP with the lowest water quality score is 04769. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.