Water Quality in Calvin, OK (74531)
EPA violation data for public water systems serving ZIP code 74531.
No Health-Based Violations
None of the 7 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are6 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 57% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
834
Population
7
Water Systems
6
Violations (5yr)
0
Health-Based
Location
Loading map...
Water Systems Serving This Area (7)
Calvin
All resolvedGerty Cong Meals
Toots Place
Midway Grocery
Y Tavern
Toots Place
Gerty Grocery
Contaminants Found
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Calvin (74531) has more violations than 57% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 6, most of which are monitoring/reporting issues.
Water Filter Recommendations
No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.