• Recently seven PFAS testing samples were taken from ACWWA at source-water intakes from alluvial and groundwater wells (before the raw-water is treated). Of the seven tests taken, four samples had no detection, and three showed results of 10, 12, and 13 parts-per-trillion (PPT), which were well below the EPA’s 70 PPT regulation. These were PFAS tests taken before water treatment.
• Of the three samples detecting PFAS at ACWWA’s source-water intakes, two of them were from wells used for irrigation only, so no inclusion into ACWWA’s drinking water supply. The other well test was from an alluvial well (a shallow well). This well either goes directly into a water storage tank before being used by any customer and is blended with other water sources, so any delivery of this water would be further diluted or it goes to our water purification (RO) plant which also mitigates any PFAS.