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After Action - Flint Task Force Discussion of School Sampling Event - Please call} PPI ‘Conf Code:

“When: Wednesday, October 28, 2015 12:30 PM-1:30 PM (UTC-06:00) Central Time (US & Canada). Where: Region 5 - Robert Kaplan's Office Attendees: Robert Kaplan Timothy Henry Miguel Deltoral Thomas Poy Michael Schock Jeffrey Kempic Darren Lytle Jim Sygo George Krisztian xxxEND_PAGE:deq19_b12_0919_1015_51 Liane Shekter Smith Steve Busch Mike Prysby xxxEND_PAGE:deq19_b12_0919_1015_52

Reporter inquiry

Just FYI - I had a voicemail from Jessica Dupnack (a reporter in MJ) regarding the Walters’ sample results and I forwarded it to Pete Cassell as requested. Miguel A. Del Toral Regulations Manager U.S. EPA RS GWDWB xxxEND_PAGE:deq03_b604_2838_3252_275 77 West Jackson Blvd, (WG-15J) Chicago, IL 60604 Phone: (312) 886-5253 xxxEND_PAGE:deq03_b604_2838_3252_276 Rennaker, Joanne (DEQ)

Re: question: Ms Walters' home

I haven't spoken to her so I don't know, but information on the Flint Water Update website, which is recent, says that the Walters are still using bottled water for drinking/cooking. Miguel A. Del Toral Regulations Manager U.S. EPA RS GWDWB 77 West Jackson Blvd, (WG-15J) Chicago, IL 60604 Phone: (312) 886-5253 Sent: Tuesday, September 1, 2015 02:09 PM

question: Ms Walters' home

Hi, Miguel. We had a call yesterday with MDEQ and were discussing Marc Edwards’ website. MDEQ thought that Ms Walters’ home has a whole house filter that would remove chlorine in addition to lead and other contaminants, such as a GAC filter. | said that when you and | were out there in late April/May, that there was no whole house GAC filter or other tap or under-sink filter; she had an iron filter at the entry point to her home—but an iron filter wouldn’t remove chlorine, though chlorine could oxidize the iron. Do you know if Ms Walters’ has installed a whole house GAC filter, or tap GAC filter or under-sink GAC filter since May? Jennifer xxxEND_PAGE:deq04_b578_6377_6764_175 Rennaker, Joanne (DEQ)

Ms. Walters! Follow-up sampling results

Attached are the results from Ms. Walters! testing following the replacement of her service line. Lead levels look good and copper is less than 1/2 the action level through the new copper service line. The first 15 samples were the sequential samples (kitchen tap to water main) which came back fine. Sample 16 is the bathroom tap which came back fine. Samples 17 and 18 were from the hot water heater where one result was high, likely from residual particulate lead from before the service line work. Miguel A. Del Toral Regulations Manager U.S. EPA R5 GWDWB 77 West Jackson Blvd, (WG-15J) Chicago, IL 60604 Phone: (312) 886-5253

Fw: 1505003 & 1505004; ICP-MS (dw) metals (Cu, Pb, Zn); Flint MI

Here are the results from the two homes sampled in Flint. Nothing horrific which is good. One home does not appear to have a LSL at all (Home 2). The other home (Home 1!) appears to have a short LSL, consistent with the practice in Flint (curb to main only). Highest result from the LSL home (Home 1) was 22 ug/L using the standard analytical protocol. They will now get shipped to Marc Edwards at Virginia Tech to see if our protocol is missing particulate lead, which made up the majority of the lead in Ms. Walters sample results. I forgot to mention that all along the block where Ms. Walters lives, there are patches in the street from non- water-related utility excavation right up to the curb, so fairly recent physical disturbances to Ms. Walters service line are likely. I think it was gas work, but I have to check. Miguel A. Del Toral Regulations Manager U.S. EPA RS GWDOWB 77 West Jackson Blvd, (WG-15J) Chicago, IL 60604 Phone: (312) 886-5253 xxxEND_PAGE:deq04_b576_5666_6018_237

Flint Sampling Update

Good morning, Tom Just an update on the Flint sampling so folks know what's going on. As we had initially discussed, the only way to really see what the lead levels are throughout and where the lead is actually coming from at Ms. Walters! place is to do sequential sampling prior to the removal of the LSL. I spoke to Ms. Walters and she said that the water was shut off inside her home, so it can actually be turned back on, so Jennifer and I picked up sample bottles from the R5 office and we will be dropping them off at Ms. Walters place today on the way home from the MDEQ RTCR meeting. Pat Cook has confirmed that following the disconnection from Detroit, Flint has not been operating any corrosion control treatment, which is very concerning given the likelihood of LSLs in the city. We do not know how many LSLs there are in Flint and according to Ms. Walters, neither does the city. She said that they do not know where any LSLs are, based on their records, so other than what appears to be a very long one at Ms. Walters' place, we don't have confirmation of any others at this point. Since they were used extensively here in RS, it is likely there are more. No idea how many, though. Marc Edwards (from Virginia Tech) was kind enough to offer to analyze this round of samples so she will shipping the samples to Marc for analysis. I asked that he measure phosphate as well, so that we have some data on that. As we discussed, R5 will send an additional set of bottles to Ms. Walters for the follow-up monitoring once the LSL is removed. I spoke to Mike Prysby on Friday and he said that the city was going to remove the LSL fully this Wednesday. I also brought a camera with me and will take some pictures while we are at Ms. Walters place as well. Apparently, according to Ms. Walters, the water director appears to be telling residents that the high lead from Ms. Walters residence is from the internal plumbing and that a reporter she was talking to, as well as others, has confirmed that this is what residents are being told. Ms. Walters indicated that the line coming into the home appears to be galvanized pipe. If this is true, it is possible that her portion of the service line, from the home to the property line, is not lead and that the city-owned portion of the service line is the only source of lead here. The sample results should help to clarify where the lead is coming from. Call me on the cell if you need to:! Miguel A. Del Toral xxxEND_PAGE:deq20_b11_432_511_65 Regulations Manager U.S. EPA RS GWDWB 77 West Jackson Blvd, (WG-15J) Chicago, IL 60604 Phone: (312) 886-5253 xxxEND_PAGE:deq20_b11_432_511_66