D23/100
LOWER RIO GRANDE PWWA SOUTH VALLEY — Water Quality Report 2026
Serving 11,542 people · New Mexico
Water Source
Groundwater
County
—
System ID
NM3502407
Violations
18
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2013.
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 LOWER RIO GRANDE PWWA SOUTH VALLEY
Is LOWER RIO GRANDE PWWA SOUTH VALLEY water safe to drink?
LOWER RIO GRANDE PWWA SOUTH VALLEY water receives a grade of D (23/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 18 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has LOWER RIO GRANDE PWWA SOUTH VALLEY detected?
31 contaminants were tested in LOWER RIO GRANDE PWWA SOUTH VALLEY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does LOWER RIO GRANDE PWWA SOUTH VALLEY have any EPA violations?
Yes, LOWER RIO GRANDE PWWA SOUTH VALLEY has 18 EPA violation(s) on record, with the most recent in 2013. Violation types include MCL, Other, MR. 14 are health-based violations.
How many people does LOWER RIO GRANDE PWWA SOUTH VALLEY serve?
LOWER RIO GRANDE PWWA SOUTH VALLEY serves approximately 11,542 people, New Mexico. The system provides water to 1 community: Vado.
What type of water does LOWER RIO GRANDE PWWA SOUTH VALLEY provide?
LOWER RIO GRANDE PWWA SOUTH VALLEY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is NM3502407.
How does LOWER RIO GRANDE PWWA SOUTH VALLEY compare to other utilities in New Mexico?
LOWER RIO GRANDE PWWA SOUTH VALLEY scores 23/100 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.