D22/100
THOREAU WATER & SANITATION DISTRICT — Water Quality Report 2026
Serving 1,173 people · New Mexico
Water Source
Groundwater
County
—
System ID
NM3508817
Violations
39
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
9
Violations (last 5yr)
0
Unresolved
3
Health-Related
TIER 2Resolved
Violation related to Consumer Confidence Report
When: October 23, 2024 – December 20, 2024Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Consumer Confidence Report
When: October 23, 2024 – March 13, 2025Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 17, 2024 – July 25, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – July 25, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: October 1, 2024 – May 13, 2025Enforcement: Resolving — corrective action underway
TIER 3Resolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2024 – March 1, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Violation related to Consumer Confidence Report
When: July 28, 2024 – March 13, 2025Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: October 1, 2022 – May 13, 2025Enforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2022 – May 27, 2025Enforcement: Resolving — corrective action underway
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 THOREAU WATER & SANITATION DISTRICT
Is THOREAU WATER & SANITATION DISTRICT water safe to drink?
THOREAU WATER & SANITATION DISTRICT water receives a grade of D (22/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 39 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has THOREAU WATER & SANITATION DISTRICT detected?
1 contaminants were tested in THOREAU WATER & SANITATION DISTRICT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does THOREAU WATER & SANITATION DISTRICT have any EPA violations?
Yes, THOREAU WATER & SANITATION DISTRICT has 39 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, RPT, Other. 9 are health-based violations.
How many people does THOREAU WATER & SANITATION DISTRICT serve?
THOREAU WATER & SANITATION DISTRICT serves approximately 1,173 people, New Mexico. The system provides water to 1 community: Thoreau.
What type of water does THOREAU WATER & SANITATION DISTRICT provide?
THOREAU WATER & SANITATION DISTRICT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is NM3508817.
How does THOREAU WATER & SANITATION DISTRICT compare to other utilities in New Mexico?
THOREAU WATER & SANITATION DISTRICT scores 22/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our New Mexico state page for a full comparison of water systems.