Water Quality in Jefferson Valley, NY: No Violations - Grade D
Grade D · Score 53/100 · 2 water systems · Updated 2026-07-18
Jefferson Valley's water has significant violations. Water testing and filtration are recommended.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-07-18
Across all 2 water systems serving Jefferson Valley, NY, federal monitoring data documents zero EPA violations - no MCL exceedances, no monitoring lapses, no enforcement actions anywhere in the compliance history.
Water Quality by ZIP Code in Jefferson Valley
Jefferson Valley is covered by a single ZIP code, so one water-quality profile applies citywide. See the contaminant data below.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 10535 | D | 53 | 0 | 0 | View report → |
Water Quality Overview
Jefferson Valley, New York receives a water quality grade of D with an overall score of 53 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
No EPA violations have been recorded for the 2 water systems serving Jefferson 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 D Means
A grade of D indicates significant compliance issues. Jefferson Valley's water systems have accumulated violations that suggest ongoing water quality challenges. Residents should check their specific ZIP code report and consider water testing or filtration.
Lead Levels
Lead testing data for Jefferson Valley is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.
With 100% of homes built before 1986, Jefferson 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
Jefferson 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 Jefferson Valley
Jefferson Valley is served by 2 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 323 people across 1 ZIP code.
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 Jefferson Valley. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Jefferson 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 10 enforcement actions against water systems serving Jefferson Valley. Recent actions:
| Date | Action Type |
|---|---|
| 2025-07-01 | EPA Formal Action |
| 2025-05-29 | EPA Formal Action |
| 2024-11-13 | State Informal Enforcement |
| 2024-11-13 | State Informal Action |
| 2021-06-03 | State Order Extension |
| 2021-05-28 | State Order Extension |
| 2021-05-20 | State Informal Action |
| 2021-03-25 | EPA Formal Action |
| 2021-03-12 | State Filed Judgment |
| 2021-03-12 | State Informal Enforcement |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-07-01.
Jefferson Valley vs. Nearby New York Cities
How Jefferson Valley's water quality compares to similar cities in New York:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Jefferson Valley | D | 0 | 2 | 323 |
| Richburg | D | 0 | 1 | 322 |
| Cornwallville | D | 0 | 1 | 321 |
| Highland Lake | D | 0 | 1 | 319 |
Common Questions About Jefferson Valley Water
These are the most common questions residents search for about water quality in Jefferson Valley, New York:
Is Jefferson Valley water hard or soft? Water hardness varies by source. Jefferson Valley's 2 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Jefferson Valley tap water? Jefferson Valley's water receives a grade of D (53/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Jefferson Valley? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Jefferson Valley vs. New York Average
Understanding how Jefferson 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 Jefferson Valley.
ZIP Codes in Jefferson Valley
Jefferson 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.