Field Office Compliance - Assistance

Assistance ID - 118349
Osceola Water Works - 310338248
2320 WEST CLAY STREET Osceola, IA 50213
Clarke County

FO 5

Report
File Name File Type File Date Note
Comments
4/12/2021 Lynam, Anne 3:18 PM (50 minutes ago) to me, Osceola For 2021 violations, you can make an 2021 Other violations header. under it would be what and when it happen, any health effects, if any and what is being done to correct the issue. Here are a couple examples for missing radium samples. Also return the PN paperwork with the CCR example. 2021 OTHER VIOLATIONS In March 2021 we failed to monitor for Combined Radium. Adverse health effects, if any, are not known. Monitoring procedures have been corrected to avoid future violations. In March 2021 we failed to monitor for Gross Alpha. Adverse health effects, if any, are not known. Monitoring procedures have been corrected to avoid future violations. Anne Anne Lynam , Environmental Specialist Sr Water Supply Operations Section Iowa Department of Natural Resources P 515-725-0280 F 515-725-8202 502 E 9th St, Des Moines, IA 50319 On Mon, Apr 12, 2021 at 3:09 PM Gastineau, Janet <janet.gastineau@dnr.iowa.gov> wrote: If it saves on paper you have to mail, I found out you can include this recent treatment technique violation in your 2020 CCR and not just in the same mailout. Contact Anne Lynam at (515) 725-0280 and she'll get you through it. She also has the added sentence for the CCR for the two violations from 2020. The letter for the recent violation is with my supervisor, but here is the language and the instructions. I'll forward you the signed letter as soon as I get it. JANET GASTINEAU
4/12/2021 Brandon Patterson Attachments Fri, Apr 9, 1:02 PM (3 days ago) to me, osceolawater4 4/8/21 – 6:52 a.m. I received a phone call from the operator at the water treatment plant. He stated that he had issues with water in the gas chlorine feed lines. He stated that the finished total chlorine numbers were continuing to trend downward. We discussed the timing of when the issue with the chlorine feed system occurred. I instructed the operator to conduct some grab sampling for chlorine readings to verify the online CL17. 7:36 a.m. The grab sampling results were discussed and the online instrument was determined to be correct. I instructed operator to verify ammonia feed. We discussed the dosages and free ammonia levels. 8:00 a.m. It was reported to me that the ammonia feed line was likely leaking at the basement wall. 8:35 a.m. I arrived at the treatment plant. I was in Des Moines. I instructed staff to collect free, total and mono chlorine samples at various locations within the ground storage reservoir. Plans were underway to repair the ammonia feed line. 8:40 a.m. Contact was made with Matt Schultz with SIRWA regarding the situation. 8:45 a.m. Contact was made with IDNR staff Janet Gastineau. 9:14 a.m. Returned call was received from Mrs. Gastineau. 9:24 a.m. Follow up contact was made with SIRWA. Determined best solution after reviewing data was to remain on chloramines. Likely Violation was discussed with SIRWA. Determination was made that the repair to ammonia line was not as extensive as previously reported. Repair was completed in a timely manner after being discovered. At approximately 9:50 a.m. ammonia feed presumed. Sample verification indicate that at 8:30 a.m. finished total readings were below 1.5 total. The lowest total reading was reported at 1:30 a.m. on 4/9/21 of .8 total. At 4:00 a.m. total readings were at 1.5 total. Total chlorine readings have continued to increase since 4:00 a.m. 4/9/21. Discussion was held with operators on 4/9/21 regarding conducting plant walk throughs and verifying proper operation of chemical feed equipment. JANET GASTINEAU
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