Tapcensus

Louisiana

Caldwell Parish drinking water quality

11 active public water systems serve 16,233 people in Caldwell Parish. 4 are compliant, 7 had at least one EPA violation in the past three years, 3 are designated serious violators, and 4 carry a health flag.

Active systems 11 11 community systems
People served 16K by public water systems
Systems with violations 7 64% of active systems, past 3 years
Serious violators 3 4 systems carry a health flag

Needs attention

Village of Grayson Water System LA1021005 · Community water system · Serves 1,461 5 rules violated in the past three years. Unresolved: Ground Water Rule and Public Notice Rule and Revised PN Rule.
Town of Clarks Water System LA1021001 · Community water system · Serves 906 3 rules violated in the past three years. Unresolved: Ground Water Rule and Public Notice Rule and Revised PN Rule.
Vixen Water System LA1021011 · Community water system · Serves 750 5 rules violated in the past three years. Unresolved: Revised Total Coliform Rule, Ground Water Rule, Public Notice Rule and Revised PN Rule, and Consumer Confidence Rule.
Holum Water System LA1021007 · Community water system · Serves 1,230 2 rules violated in the past three years. Unresolved: Ground Water Rule.

Community water systems

11 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Hebert Water System
 3,048 0 0
East Columbia Water System
 2,829 0 0
Columbia Heights Water District
 1,965 0 0
Village of Grayson Water System
 1,461 5 2
Kelly Water District
 1,314 1 1
Holum Water System
 1,230 2 1
Wards 4 & 5 Water System
 1,002 0 0
Village of Columbia Water System
 945 2 1
Town of Clarks Water System
 906 3 2
Cotton Plant Water System
 783 4 2
Vixen Water System
 750 5 4
Inactive systems (5, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Louisiana records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.