Details for Dunkerton, City of - Legals - Ad from 2020-03-25
2019 WATER QUALITY REPORT FOR DUNKERTON MUNI WATER SUPPLY This report contains important information regarding the water quality in our water system. The source of our water is groundwater. Our water quality testing shows the following results: CONTAMINANT Total Haloacetic Acids (ppb) [HAA5] Copper (ppm) Lead (ppb) MCL-(MCLG) Compliance Date Violation Source Type Value & (Range) Yes/No 60 (N/A) LRAA 6.00 (6-6) 09/30/2019 No By-products of drinking water disinfection AL=1.3 (1.3) 90th 0.85 (0.0763-2.680) 1 sample(s) exceeded AL 2018 No Corrosion of household plumbing systems; Erosion of natural deposits; Leaching from wood preservatives AL=15 (0) 90th 2.60 (ND-318) 1 sample(s) exceeded AL 2018 No Corrosion of household plumbing systems; erosion of natural deposits RAA 2.6 (1.86-3.48) 09/30/2019 No Water additive used to control microbes 950- DISTRIBUTION SYSTEM Chlorine (ppm) MRDL=4.0 (MRDLG=4.0) 02- FINISHED WATER SAMPLE TAP, #2 Sodium (ppm) N/A (N/A) SGL 52.1 06/11/2019 No Erosion of natural deposits; Added to water during treatment process Nitrate [as N] (ppm) 10 (10) SGL 1.500 2019 No Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits 03- FINISHED WATER SAMPLE TAP, #3 Barium (ppm) 2 (2) SGL 0.244 06/27/2018 No Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits Arsenic (ppb) 10 (0) SGL 2.10 06/27/2018 No Erosion of natural deposits; Runoff from orchards; Runoff from glass and electronic production wastes Selenium (ppb) 50 (50) SGL 2.10 06/27/2018 No Discharge from petroleum and metal refineries; Erosion of natural deposits; Discharge from mines Fluoride (ppm) 4 (4) SGL 0.5 06/27/2018 No Water additive which promotes strong teeth; Erosion of natural deposits; Discharge from fertilizer and aluminum factories Sodium (ppm) N/A (N/A) SGL 27 06/11/2019 No Erosion of natural deposits; Added to water during treatment process Note: Contaminants with dates indicate results from the most recent testing done in accordance with regulations. DEFINITIONS • Maximum Contaminant Level (MCL)-The • Maximum Contaminant Level Goal (MCLG) • ppb -- parts per billion. highest level of a contaminant that is allowed -- The level of a contaminant in drinking • ppm -- parts per million. in drinking water. MCLs are set as close water below which there is no known or • pCi/L - picocuries per liter to the MCLGs as feasible using the best expected risk to health. MCLGs allow for a • N/ A - Not applicable available treatment technology. margin of safety.