Tapcensus

Water quality for ZIP code 58007

ZIP 58007 covers Ayr in Cass County, North Dakota, one of 25 ZIP codes in the county. 27 active public water systems serve the county; 12 had an EPA violation in the past three years.

Most likely your provider

Buffalo City of ND0900134 · Community water system · Ground water purchased · Buffalo
Serves 188 people Rules violated, past 3 years 2 Last sanitary survey Jul 20, 2023 Distance 8.2 mi
View system details EPA facility report

Other community water systems in Cass County

25 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Page City of
Page		 232 0 10.4 mi
Amenia City of
Amenia		 94 0 11.3 mi
Tower City City of
Tower City		 253 1 11.7 mi
Cass Rural Water District-Phase III
 1,682 0 11.8 mi
Arthur City of
Arthur		 337 0 13.2 mi
Casselton City of
Casselton		 2,513 0 15.0 mi
Hunter City of
Hunter		 261 4 16.4 mi
Mapleton City of
Mapleton		 1,320 0 21.9 mi
Argusville City of
Argusville		 475 0 24.6 mi
Gardner City of
Gardner		 74 1 25.1 mi
Grandin City of
Grandin		 173 1 26.3 mi
Harwood City of
Harwood		 718 0 27.9 mi
Davenport City of
Davenport		 252 2 28.5 mi
Cass Rural Water District-Phase II
 1,700 0 28.7 mi
Fradets Orchard Water System
 56 1 29.0 mi
West Fargo City of
West Fargo		 34,858 0 29.3 mi
Riverdale Subdivision
 88 4 30.7 mi
Horseshoe Bend
 110 0 31.1 mi
Horace City of
Horace		 1,641 4 31.8 mi
Fargo City of
Fargo		 120,762 0 32.3 mi
Country Acres Water CO
 50 2 33.1 mi
Kindred City of
Kindred		 692 0 33.9 mi
Cass Rural Water District Fargo
 4,242 0 34.9 mi
Cass Rural Water District-Phase I
 3,658 0 38.6 mi
Oxbow City of
Oxbow		 305 1 39.2 mi
Non-community systems in Cass County (1: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Knickerbocker Liquor Locker
 30 1 1
About this data

Water systems are matched to Cass County, the county this ZIP code lies in, nearest to the ZIP code's centre 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. Distances are measured to the centre of the service area EPA publishes for the system.

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 North Dakota 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.