Tapcensus

Water quality for ZIP code 70551

ZIP 70551 covers Leonville in St. Landry Parish, Louisiana, one of 13 ZIP codes in the county. 29 active public water systems serve the county; 16 had an EPA violation in the past three years.

Most likely your provider

City of Opelousas Water System LA1097010 · Community water system · Ground water
Serves 20,388 people Rules violated, past 3 years 3 Last sanitary survey Sep 22, 2025
View system details EPA facility report

Other community water systems in St. Landry Parish

27 systems, largest first
SystemServesStatusRules violated, 3 yr
Lawco Eunice Water System
 15,471 0
Town of Leonville Water System
 9,552 0
Lewisburg Bellevue Water System
 8,325 0
Savoy Swords Water System INC
 7,326 1
Plaisance Water System
 6,465 1
Prairie Ronde Water System INC
 6,105 0
ST Landry Water Works District 2 Rural
 4,761 0
Town of Sunset Water System
 4,356 4
Town of Port Barre Water System
 3,828 0
Lawtell Water Works District NO 1
 3,717 0
Village of Cankton Water System
 2,730 2
Mamou Road Water District, INC
 2,478 0
Village of Palmetto Water System
 2,178 6
Town of Krotz Springs Water System
 2,130 1
ST Landry Wwd 3 Port Barre Area D
 1,860 2
Town of Washington Water System
 1,713 0
Greenbriar Prairie Basse Water System
 1,656 1
Town of Grand Coteau Water System
 1,650 5
Morrow Water System INC
 1,572 0
Town of Melville Water System
 1,314 5
ST Landry Waterworks District No. 5
 519 3
ST Landry Wwd 3 Port Barre Area B
 516 1
ST Landry Wwd 3 Port Barre Area C
 351 0
ST Landry Wwd 3 Port Barre Area a
 270 0
Hidden Hills Subdivision Water System
 240 0
All 28 community water systems in St. Landry Parish
Non-community systems in St. Landry Parish (1: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Walmart Distribution Center Water System
 600 3 3
About this data

Water systems are matched to St. Landry Parish, the county this ZIP code lies in, largest first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.

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.