Field Office Compliance - Assistance

Assistance ID - 68979
Madrid Water Department - 310337294
1575 334TH ST Madrid, IA 50156
Boone County

FO 5

Report
File Name File Type File Date Note
Comments
4/18/2014 From: Gastineau, Janet [DNR] Sent: Friday, April 18, 2014 2:15 PM To: dhayden@xeniawater.org; Kevin Lyons (klyons@xeniawater.org) Subject: Madrid public water supply Madrid had a combined filter effluent turbidity exceedance yesterday and is being issued a treatment technique violation with tier 2 public notification. The City is required to provide public notice to the owner(s) or operator(s) of all consecutive systems to whom they provide drinking water. Each consecutive system is responsible for providing public notice to the persons it serves, and must meet the appropriate Tier 2 requirements. The violation letter and public notification language and instructions will be mailed out to Madrid on Monday, but I wanted to let you know so you could work with them. Sometimes one public notification can be used to cover all customers, including consecutive, so you may want to coordinate this with Todd or Mike. PN has to be done by May 19, 2014. JANET GASTINEAU
4/18/2014 From: Gastineau, Janet [DNR] Sent: Friday, April 18, 2014 1:43 PM To: Lynam, Anne [DNR] Subject: Madrid PN I can just send the PN with my violation after you have it together. I was thinking it would need to be a Tier 1 with no boil advisory and they had to get it out right away. As a Tier 2, next week is soon enough. Our mail won’t go out today again anyway. I’m out Monday so I can send it all out at once on Tuesday and nothing special needs to be addresses to Todd separately. JANET GASTINEAU
4/18/2014 From: Gastineau, Janet [DNR] Sent: Friday, April 18, 2014 2:04 PM To: cityofmadrid@windstream.net Subject: FW: for Mike If something comes up after hours this weekend with the water plant, please call our 24 hour environmental emergency response number at 515-281-8694---I think I left you the wrong number on the voicemail message I left you. JANET GASTINEAU
4/18/2014 From: Gastineau, Janet [DNR] Sent: Friday, April 18, 2014 11:25 AM To: Spoelstra, Chris [DNR]; Lynam, Anne [DNR]; Bunton, Jennifer [DNR] Cc: Grapp, Shelli [DNR]; Petersen, Ted [DNR] Subject: Madrid turbidity Importance: High The operator and I dug a little deeper into this CFE turbidity issue. Attached chart pegged at 1 NTU for turbidity. His SCADA trends pegged at 1 NTU. He can't get to his raw data to show how high it went other than the two numbers he told me yesterday. I told him we will issue a violation and require public notification since he can't document how high above 1 NTU CFE was. Yes, I have been through this issue with him and he assured me in the past the chart will read up to 2. If you read the chart it does show 0 to 2 NTU, but it's clearly pegged at 1. The turbidity line on the chart is the one closest to the center. The outside-most line is free chlorine and the other is gpm. I am comfortable with a violation and PN requirement like we did with DMWW without a boil advisory. Any discussion? He will be making calls to automated systems and getting them in ASAP. I think Mike is pretty out of it; he was called in this morning on an unrelated alarm. Might be best if we deal with city administrator of PN. JANET GASTINEAU
4/18/2014 From: Gastineau, Janet [DNR] Sent: Thursday, April 17, 2014 5:05 PM To: Spoelstra, Chris [DNR]; Lynam, Anne [DNR]; Bunton, Jennifer [DNR] Cc: Petersen, Ted [DNR]; Grapp, Shelli [DNR] Subject: Madrid turbidity I received a call this afternoon from the Mike Fischer, operator at Madrid (IGW). They had two CFE excursions above 1 NTU early this morning. He was called into the water plant around 2:00 am and CFE climbed to 1.41 NTU for about 35 minutes. They have two individual filters (no IFE turbidimeters) and a continuous turbidimeter on the combined effluent from the two filters before their clearwell. In reaction to the high turbidity, he shut off HSPs and backwashed the filters, increasing both the scour and wash times. They do not have filter to waste. Turbidity was up again to 1.42 for a couple of hours and came down and has stayed down ever since. He took grab samples from his source/entry point during this and turbidity was 0.1 and 0.14 NTU. Chlorine residuals were also good. The filters were last backwashed on Monday—he backwashes Monday and Friday. His explanation for the high readings had to do with some work they did on the filter media April 8. Hydro Klean came in and removed about two foot of media (sand and anthracite). Apparently they did this back in 2008 also because their filter media “grows.” In 2010 they then replaced media filters and they were repeating this again, expecting to put off another replacement. The expanded media is harder to get a good backwash on and he feels that since the media was removed last week that they may just be getting better backwashes and it’s stirring things up some, including adding air. He checked his turbidimeter to be sure it hadn’t collected loose sand or something that could have given a false reading. I explained to Mike that although this is not technically an exceedance, I would carry the message to others to discuss and we could still decide to make it a lesser public notification event. Therefore, I am looking for input from others. I have requested the data, which is only available on a circular chart. I will share it with you in the morning after it is faxed. JANET GASTINEAU
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