F0/100
LOCKE LAKE — Water Quality Report 2026
Serving 2,278 people · New Hampshire
Water Source
Surface Water
County
—
System ID
NH0142010
Violations
73
Contaminant Test Results
No contaminant data available for this system.
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2018.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About LOCKE LAKE
Is LOCKE LAKE water safe to drink?
LOCKE LAKE water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 73 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has LOCKE LAKE detected?
0 contaminants were tested in LOCKE LAKE's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does LOCKE LAKE have any EPA violations?
Yes, LOCKE LAKE has 73 EPA violation(s) on record, with the most recent in 2018. Violation types include MCL, MR. 9 are health-based violations.
How many people does LOCKE LAKE serve?
LOCKE LAKE serves approximately 2,278 people, New Hampshire. The system provides water to 1 community: Barnstead.
What type of water does LOCKE LAKE provide?
LOCKE LAKE sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is NH0142010.
How does LOCKE LAKE compare to other utilities in New Hampshire?
LOCKE LAKE scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our New Hampshire state page for a full comparison of water systems.