Fort Oakland-tonkawa Tribal Authority
- 1 or more tests taken in the month
- 1 or more positive detections
- 1 or more tests above health limit
- 1 or more tests above legal limit
Tonkawa, Oklahoma. Serves 150 people.
2 contaminants found within health guidelines and legal limits
In some states a small percentage of tests were performed before water was treated, and some contaminants were subsequently removed or diluted. As a result, some reported levels of contamination may be higher than were present at the tap.
|Number of Tests|
|Contaminant||Average result||Maximum result||Health limit||Legal limit||Total
|Positive result||Above health||Above legal||Monthly Testing History Chart key at top of page||E.P.A. regulated|
|Total haloacetic acids (HAAs)||3.65 ppb||3.77||70||60||1||1||0||0||Yes|
|Total trihalomethanes (TTHMs)||17.81 ppb||19.05||-||80||1||1||0||0||Yes|
Units: ppb: parts per billion, pCi/L: picocuries per liter, ppm: parts per million, mrem/yr: millirems per year, MFL: million fibers per litre