Tapcensus

Water quality for ZIP code 73018

ZIP 73018 covers Chickasha, Ninnekah, and Norge in Grady County, Oklahoma, one of 11 ZIP codes in the county. 31 active public water systems serve the county; 28 had an EPA violation in the past three years.

Most likely your provider

Chickasha Municipal Authority OK1010821 · Community water system · Surface water
Serves 16,036 people Rules violated, past 3 years 5 Unresolved 1 Last sanitary survey Nov 29, 2023 Distance 0.9 mi

Your location is within the outer bounds of this system's EPA service area.

Other community water systems in Grady County

16 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Norge Water and Sewer Co., INC
890 0 5.3 mi
Grady CO Rwd #2
455 5 7.3 mi
Grady CO Rwd #1
300 7 8.5 mi
Verden
659 2 8.9 mi
Grady CO Rwd #6
3,930 11 9.6 mi
Grady CO Rwd #7 (ninnekah)
2,425 4 9.8 mi
Alex
635 8 13.3 mi
Winter Creek Water Company, LLC
46 7 13.6 mi
Southern Hills Estates
200 2 16.3 mi
Grady CO Rwd #3
80 10 17.8 mi
Rush Springs
1,278 0 18.9 mi
Minco
1,632 2 19.5 mi
Country MHP
50 5 20.3 mi
Tuttle
4,500 1 21.6 mi
Eastside MHP
32 9 —
Skyview Mobile Home Park
24 12 —
Non-community systems in Grady County (14: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Chickasha Meat Company, LLC
26 2 1
Cottonwood RV Park
72 1 0
The Oasis Gas 'n GO
100 2 1
Middleberg School
135 2 0
Countyline Cafe
40 1 0
Dana Cakes and Cookies
25 1 0
Kidz Club Child Care Center
32 6 2
Bridge Creek School
800 3 0
Bridge Creek Convenience
50 2 1
Braums Dairy & Processing Plt
125 1 0
Tri City Dental
75 1 0
Hazel Dell Baptist Church
100 2 1
Middleberg Baptist Church
40 2 1
Dollar General Grady County
26 0 0
About this data

Water systems are matched to Grady 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 Oklahoma 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.