Correspondence among

Emails where every selected person appears as a sender, recipient, or copied participant.

FW: Phosphate Feed System

Date: Wednesday, December 09, 2015 2:47:17 PM FYI. Flint’s additional corrosion control inhibitor feed is now up and running. As a reminder this is on top of the corrosion inhibitor already present in the water purchased from DWSD. Stephen Busch, P.E. MDEQ Lansing District Coordinator Office of Drinking Water and Municipal Assistance Lansing and Jackson District Supervisor 517-643-2314 [email protected]

FW: Resident Sampling Instructions-12-4-2015

Revised. SHe the note on page two regarding stagnation times greater than 24 hours. i would orefar to use L& hours, fut the EPA notes recommended 24 hours sol went with that. Please int rne know if you have any other comments. Jirn ~ f think this can be shared with EPA aven if staff have further comments.

DRAFT Lead and Copper Sampling Instructions

Updated lead and copper sampling instructions for residents/customers. We have modified our instructions to address concerns raised. We have not vetted this through any district staff to see if they have any other recommendations. This could be done concurrently with EPA’s review. xxxEND_PAGE:deq15_b768_2732_2732_1

RE: Project Number for City of Flint Drinking Water

Here's my best guess fram a review of my calendar and my emails. e August 10-— 7 hour August 12 -~ 2 hours August 14 — 7 hour August 17 ~ 7 hour August 24 ~ 2 hours Asigust 28 ~ 2 hours August 31 ~ 4 hours Senternber 2 ~— 2 hours September 2 ~- | hour Genmtermber 4 ~~ ¢ hour Senternber 8 ~ 2 hours Sentermber 9 - 2 hours Senternber 10 ~— 5 hours Senternber 11-4 hours Senterber 15-3 hours Senternber 16 ~ 4 hours September 17 ~ 4 hours September 16— 7 hour Septernber 21-5 hours September 22 ~ 4 hours Septernber 23 ~ 4 hours September 24-9 hours September 25 —3 hours ® &® @ © © @ © © © © © & © © & © & SF 8 FB Total before last pay period: 64 hours

FW: TAC Team Summary 10_7_15

Attached is VA Tech’s ppt discussion of the corrasion concerns in Flint and the comparison to Detroit water regarding corrosion. It would be more helpful to see the methodology of the study, actual data, and how samples were collected. Michael Prysby, P.E. District Engineer Office of Drinking Water and Municipal Assistance S17 290-8817

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