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EL OSO WSC

Serving 3 cities in TX

Warning
9 MCL violations recorded
8K
People Served
3
Cities
1
Water Sources
9
MCL Violations

Official EL OSO WSC Resources

Emergency Contact

830) 780-3539

Available 24/7 for emergencies

Visit Official Website

EL OSO WSC Service Area

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Service Area

This map shows the approximate service area for EL OSO WSC. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.

EL OSO WSC Water Quality Grade

F
Failing

Significant water quality issues. Filter recommended.

Quality Score0/100
4
Above Health Guidelines
9
EPA Violations

Grade is calculated based on contaminants exceeding health guidelines (MCLG) and EPA Maximum Contaminant Level violations. A = Excellent (90-100), B = Good (80-89), C = Fair (70-79), D = Poor (60-69), F = Failing (<60).

Is EL OSO WSC Water Safe to Drink?

EL OSO WSC has reported 4 contaminants above EPA health-based guidelines (MCLGs) in at least one city served. The utility has 9 MCL violations on record. We recommend reviewing individual city reports below for specific water quality details.

This utility serves 8,343 people across 3 cities in TX. Water quality can vary by location within the service area. Check individual city pages below for detailed contaminant data specific to your area.

Get your water independently tested in Texas β†’

EL OSO WSC Service Area

EL OSO WSC Contact & Information

Emergency Line

830) 780-3539

24/7 After-Hours

Mailing Address

PO BOX 309 Karnes City, TX 78118

B2B Contact Data

B2B Contact Data Available

Contacts for EL OSO WSC

Updated Jan 2026
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NameTitlePhoneEmail
Jβ–ˆβ–ˆβ–ˆβ–ˆ Sβ–ˆβ–ˆβ–ˆβ–ˆWater Treatment Supervisor(555) β–ˆβ–ˆβ–ˆ-β–ˆβ–ˆβ–ˆβ–ˆjβ–ˆβ–ˆβ–ˆβ–ˆ@cityβ–ˆβ–ˆβ–ˆβ–ˆ.gov
Mβ–ˆβ–ˆβ–ˆβ–ˆ Jβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆUtility Director(555) β–ˆβ–ˆβ–ˆ-β–ˆβ–ˆβ–ˆβ–ˆmβ–ˆβ–ˆβ–ˆβ–ˆ@waterβ–ˆβ–ˆβ–ˆβ–ˆ.org
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Water Sources & Treatment

Water Sources

Groundwater

Treatment Methods

Not specified

EPA Violations

9 Maximum Contaminant Level Violations

This utility has recorded MCL violations, indicating contaminant levels exceeded federal legal limits. These violations are aggregated across all cities served.

Check individual city reports for specific violation details and current status.

Recommended Water Filters for EL OSO WSC

Based on water quality data from cities served by EL OSO WSC, we recommend NSF-certified filters that can remove contaminants above health guidelines.

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