Water Quality in Great Valley, NY: No Violations — Grade C
Grade C · Score 65/100 · 5 water systems · Updated 2026-05-03
Great Valley'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
Across all available EPA tracking data for Great Valley, NY, the record has remained clean — 5 public water systems on file, zero violations recorded, and no enforcement proceedings initiated at any point in the federal dataset.
Water Quality by ZIP Code in Great Valley
Water quality varies across Great Valley's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 14741 | C | 65 | 0 | 0 | View report → |
Water Quality Overview
Great Valley, New York receives a water quality grade of C with an overall score of 65 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
No EPA violations have been recorded for the 5 water systems serving Great Valley. This is a positive indicator, though it does not guarantee the absence of all contaminants — some substances (like PFAS) are not yet fully regulated.
What Grade C Means
A grade of C indicates moderate compliance issues. Great Valley'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 Great Valley water systems is 0.0014 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 52% of homes built before 1986, Great Valley 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
Great Valley 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 Great Valley
Great Valley is served by 5 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 980 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 4 enforcement actions against water systems serving Great Valley. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Great Valley
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
EPA Enforcement History
The EPA and state regulators have taken 4 enforcement actions against water systems serving Great Valley. Recent actions:
| Date | Action Type |
|---|---|
| 2023-05-04 | State Informal Action |
| 2022-09-21 | State Filed Judgment |
| 2022-09-21 | State Informal Enforcement |
| 2021-01-28 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2023-05-04.
Great Valley vs. Nearby New York Cities
How Great Valley's water quality compares to similar cities in New York:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Great Valley | C | 0 | 5 | 980 |
| Bloomingdale | A | 0 | 1 | 980 |
| Crown Point | A | 0 | 1 | 980 |
| Vermontville | C | 0 | 1 | 980 |
Common Questions About Great Valley Water
These are the most common questions residents search for about water quality in Great Valley, New York:
Is Great Valley water hard or soft? Water hardness varies by source. Great Valley's 5 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Great Valley tap water? Great Valley's water receives a grade of C (65/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Great Valley? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Great Valley vs. New York Average
Understanding how Great Valley compares to the broader New York 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 Great Valley.
ZIP Codes in Great Valley
Great Valley spans 1 ZIP code. 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.