Centennial Estates
EPA ID: NH0613060 · 140 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Centennial Estates (NH0613060): 1 health-based violation recorded since 2021. Per the federal file, all 1 violation logged for Centennial Estates carry a resolved status, and around 140 people get water from this system.
Data: EPA SDWIS
Service Area Map
Coverage area for Centennial Estates Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Centennial Estates have a median household income of $104,306 and about 34,622 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 65% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Centennial Estates's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Superfund Proximity Note: This service area ranks in the 80th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
PFAS in ZIP Codes This System Serves
PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 1 detection recorded. 1 detection is above the level of a federal PFAS MCL (4 ppt for PFOA and PFOS), with compliance required from 2029.
Comparable Water Systems
Similar-sized systems in New Hampshire
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Centennial Estates (EPA ID: NH0613060) is a community water system in New Hampshire that serves approximately 140 people from groundwater sources.
This system serves ZIP code 03038 in Derry.
Violation History
Status breakdown for accepted records with record years 2021-2026: 1 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 1, 2023 | Nitrate | Health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Nitrate | MCL Violation | 1 | Yes |
Health Risk Details
Lead (EPA level: 0.015 mg/L (EPA action level for the 90th percentile of a system's tap samples; not a safe level))
Brain damage in children, kidney & blood pressure in adults At-risk groups: infants, children under 6, pregnant women.
Treatment options (verify a product is certified to reduce this contaminant): reverse osmosis, distillation, carbon block filter certified for lead reduction (NSF/ANSI 53). Find the right filter →
Lead & Copper
No reported lead measurement appears for this PWSID in the accepted LCR snapshot. Absence of a reported measurement is not a measured zero.
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by NH or modeled from parcel and building-footprint data.
- 03038 - Derry
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Centennial Estates (NH0613060) on EPA.gov.
Frequently Asked Questions
Is Centennial Estates water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Centennial Estates; its 1 accepted 2021-2026 record are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Centennial Estates serve?
Centennial Estates serves approximately 140 people across 1 ZIP code in New Hampshire.
Where does Centennial Estates get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Centennial Estates (NH): 1 Health Violation. https://zipcheckup.com/water-system/nh0613060/
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author = {{ZipCheckup}},
title = {{Centennial Estates (NH): 1 Health Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/nh0613060/}
}
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Centennial Estates (EPA ID: NH0613060) - request the latest Consumer Confidence Report or ask about specific contaminants.