Public Water System

LANDMARK ESTATES CONDOS

PWSID NH1852150 · New Hampshire · 105 people served

Failing

LANDMARK ESTATES CONDOS is an EPA-regulated public water system in New Hampshire (PWSID NH1852150). It serves an estimated 105 residents — a rural community of customers — across 1 community across 1 ZIP code.

Over the past five years, LANDMARK ESTATES CONDOS has recorded 24 EPA health-based violations. The grade of F summarizes this compliance pattern. Specific contaminants, dates, and rule citations are listed in the violation history below.

Service Area

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Centered on the averaged ZIP-code centroid of 1 ZIP served.

Population

105

Cities

ZIPs

Violations

EPA Health-Based Violations

Health-based Maximum Contaminant Level (MCL) violations on file for LANDMARK ESTATES CONDOS over the past five years of EPA SDWIS reporting.

Radiumradiological

EPA Code 4000 · Maximum Contaminant Level Exceedance

violations

EPA Limit

5 pCi/L

Last Reading

27 PCI/L

First Reported

Jul 2022

Most Recent

Jan 2023

What this violation means

Radium-226 and Radium-228 occur naturally in groundwater, particularly in regions with granite or sandstone aquifers. Long-term ingestion increases the risk of bone, sinus, and other cancers because radium concentrates in bone tissue.

Recommended precautions

→Reverse osmosis and ion exchange (water softeners) remove radium.
→Boiling does NOT remove radium and may concentrate it.
→Private well users in radium-rich geology should test every 3–5 years.

Read the complete guide to Radium

Uraniumradiological

EPA Code 4006 · Maximum Contaminant Level Exceedance

violations

EPA Limit

0.03 mg/L

Last Reading

161 UG/L

First Reported

Jul 2022

Most Recent

Jan 2023

What this violation means

Uranium in drinking water is both a chemical toxin (kidney damage) and a radiological hazard (increased cancer risk). It's most commonly found in groundwater near uranium ore deposits or former mining activity in the Western US.

Recommended precautions

→Reverse osmosis is the gold standard for removing uranium.
→Ion exchange systems work but must be sized correctly for uranium.
→If you live near former mining sites, test for uranium even if not required.

Read the complete guide to Uranium

Source: EPA Safe Drinking Water Information System (SDWIS). Health-based violations only. Older violations may have been resolved; check your utility's most recent Consumer Confidence Report for current status.

Cities Served by LANDMARK ESTATES CONDOS

PELHAM

ZIP Codes Served

03076

About this system

EPA records this system as PWSID NH1852150. Data reflects the most recent EPA SDWIS publication as of 2026-05-18. Public Water System Identifiers (PWSIDs) are assigned by the EPA's Safe Drinking Water Act program to track every regulated water utility in the United States. The first two letters typically indicate the state primacy agency. For real-time water quality information, contact LANDMARK ESTATES CONDOS directly or review their annual Consumer Confidence Report (CCR).