Marshall County Rural Water District #2, OK Water Quality
What's in Marshall County Rural Water District #2's water?
Marshall County Rural Water District #2 had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. Population served: 17,587, over 7,146 connections.
Marshall County Rural Water District #2's record against the rest of the country
Marshall County Rural Water District #2 has 64 violations on record in total, 56 of them health-based - ranking it 224th of 12,903 systems by violation count, the 98th percentile nationally.
How Marshall County Rural Water District #2 compares within OK
Among the 247 OK systems in this dataset, the average is 39.0 health-based violations - Marshall County Rural Water District #2's 56 is above that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for Marshall County Rural Water District #2 is from 2025-01-10 (health-based: 2025-01-10). Last reported to EPA: 05/13/2026.
What kind of problem, specifically
Marshall County Rural Water District #2's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR); Interim Enhanced Surface Water Treatment Rule
- Synthetic organic chemicals / pesticides / VOCs - flagged from: Carbon, Total
- Disinfection byproducts - flagged from: Tthm; Total Haloacetic Acids (HAA5)
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What this data is and is not
This is what Marshall County Rural Water District #2 reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Between the utility's meter and Marshall County Rural Water District #2's customers' taps is household plumbing, invisible to a system-level record ranked 224th of 12,903 by violation count. The guide to what this data misses covers that gap.