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January 2015 MOR

Mike & Adam, Here is copy of the MOR for the month of January. Brent will be sending out a hard copy in the mail today. I have also included the January monthly bromate test results. Mike Glasgow City of Flint Water Plant xxxEND_PAGE:deq04_b076_2599_2966_027 SUPPLY NAME: CITY of FLINT WATER PLANT WSSN: — 2310 — Michael Glasgow January 2015 Operator-in-Charge Month/Year F-AR, F-2 Ft Certification of Operator-in- Water Plant Classification Genesee County Treatment Rate and Filter Data Maximum Treatment Rate: Million Gallons per Day Rated Plant Capacity: Million Gallons per Day Average Filter Run: Hours Average Head Loss: Feet *(filter head loss meters not operational) Average Filtration Rate: Gallons Per Square Feet per Minute Maximum Filtration Rate: Gallons Per Square Feet per Minute Average Wash Water Use: Percent of Treated Water Chemical Data Chlorine on hand: 12,000 tb. Est. supply: Primary Coagulant (Ferric Chloride) on hand: — 410,000 Ib. Est. supply: Lime (CaO) on hand: 257 tons. Est. supply: Fluoride on Hand: 16,630 Ib. Est. supply: Cost of All Chemicals per Million Gallons: nia dollars Total Power Cost per Million Gallons: nia dollars Remarks Confluence Point # 1 (N) Confluence Point # 2 (S) Number of filter confluence samples > 0.3 NTU: iy i) Number of filter confluence samples collected: 244 242 Percent of filter confluence samples > 0.3 NTU: 0.0% 0.0% Number of filter confluence samples > 1 NTU 0 0 Did any individual filter exceed: 4.0 NTU in two consecutive measurements taken 15 minutes apart? NO If yes, attach specific filter(s) information and indicate required follow-up status. 0.5 NTU in two consecutive measurements taken 15 minutes apart after 4 hours of operation? NO if yes, atlach specific filter(s) information and indicate required follow-up status. 1.0 NTU In two consecutive measurements taken 15 minutes apart for 3 consecutive months? NO (f yes, attach specific filter(s) information and indicate required follow-up status, 2.0 NTU in two consecutive measurements taken 15 minutes apart for 2 consecutive months? NO If yes, attach specific filter(s) information and indicate required follow-up status. Was continuous (every 15 minutes) filter monitoring equipment off-line during the month? NO lf yes, indicate date(s), duration, and individual filter grab sampling frequency on a separate sheet. Did POE disinfectant residual fall below 0.2 ppm during the month? If yes, indicate date(s) and duration on a separate sheet. Was minimum C*T credit achieved for the entire month? ff na, indicate on a separate sheet the date(s) not achieved. Was continuous POE chiorine residual monitoring equipment off-line during the month? If yes, indicate date(s) and duration on a separate sheet. xxxEND_PAGE:deq04_b076_2599_2966_028 Coagulation Parameters & Softening Chemical Application Million Gallons Treated [as ar | | 19.0 20.4 115.0 18.8 18.1 109.0 18.9 17.5 122.0 City of Flint Water Treatment Plant = January 2015 Page 2 WSSN: 2310 4a? es Units ee Settler} Applied Effluent Avg. oe nw 18.8 16.7 421.0 45 16.1 16.6 435.0 12.3 14.9 151.0 16.8 159.0 18,0 164.0 1,43 1.38 8.2 1.36 9.0 1.641 8.4 “ 77 18.5 144 17.8 18.6 187 Tae | = fee 418.5 15.3 16.9 19.0 21.0 Total xxxEND_PAGE:deq04_b076_2599_2966_029 Filter turbidity City of Flint Water Treatment Plant January 2015 Page 3 WSSN: 2310 Turbidity, Units Confluence Point. No.4 (N) North Confluence Point. No.2 (S) South o | 2 | 3 | 8 6 =m 9 = 8 8 | <= 8 8 8 & a] <— = n 0.07 0.06 0.42 0.07 0.09 o.os | 0.09 0 ’ 8 0.07 0.08 0,07 13 -|-|-|-1-]-[-[-1-1° -|-[el=|-[¢|- -|>[-]>[-l-[-[- f=) S11 § cj x BS ti) ~ qq — oe 0.68 0.11 0.07 9 | 007 | 0.09 | 0.07 0 8 007 | 0.08 0.07 4 8 0.41 0.07 0.08 | 0.10 0.07 0.08 | 0.07 , 0.09 0.07 | 0.09 0.08 os | 0.14 oor | oo | 0.07 | 0.08 0.07 0.08 8 oor | oos | 6 | 8 oos | o11 | 6 | 0.11 Ps [oe [Lo | 0.07 Ded @ N N -|-|-)~1+/-]-[-[-}- -|=|-le/*|=[+|=!-|>[-[> e\lsc 2 Q)e -|-|-]- o Q xxxEND_PAGE:deq04_b076_2599_2966_030 Page 4 >]; 2 Chlorine Resldual (mgiL) 3 MG Well January 2015 2 a = i~J 3 8 B < c i= S 2 = o City of Flint Water Treatment Plant WSSN: 2310 Fluoridation & Chlorination a) N Nia - xxxEND_PAGE:deq04_b076_2599_2966_031 Chemical City of Flint Water Treatment Plant January 2015 Page 5 Analyses WSSN: 2310 Non-Carbonate ‘, Total Hardness as } Total Alkalinity as Hardness as CaCO3 Calcium as Ca2+ Magnesium as Chloride as C}- GaCO3 (mg/L) CaCO3 (mg/L) (mgiL) Mg2+ (mg/L) p | Raw | 7 2 | mea 1058 | 64.9 e7 | 49 tore | 6t7 | 156 : 729 | 29 : 115.4 70.5 58 7.98 7.75 8.01 8.24 7.68 1050 | 513 68.9 1010 | 481 | 185 fee [ae 106.6 113.0 = Dems [| xxxEND_PAGE:deq04_b076_2599_2966_032 Page 6 January 2015 WSSN: 2310 Total Coliform ‘City of Flint Water Treatment Plant Bacterlofogical & Physical Parameters Color Conductivity] plate MPN) Standard Plate Count = @ = £ = c= s a 8 3 = 53 5z of 5 c Z a = r~ 2 3 Sg & & = pid o & s £13 s e 8 a & S Q * 0 i=] i-4 E 8 a E 3 QR = 3 3 a B 2 =" 8 + xxxEND_PAGE:deq04_b076_2599_2966_033 Distribution System City of Flint Water Treatment Plant January 2015 Page 7 Monitoring WSSN: 2310 Free Chlorine Residual at Bacteriological Montioring Stations mg/! Date 1 7 cs Da [or [on [a3 [ae [or foe [oe] a = € 3 fea g WS a Py So 3m im a 10 = rio ~ cro o wa [as “| oO a}o elo = i) is == S Sp & = o > = = < [i uM N oe nw ie ee es amfajm eal = ery afa afafa > N ow] CIN] & alata = = Njajpn BS a = Ss 2 2 o N N N 2 a elo oa} Sine = o Distribution Sampte Summary Total # of routine distribution samples analyzed Total # of routine distribution samples required Distribution Bacteriological Summary ‘Total # of positive routine distribution samples Percent of routine distribution samples positive [oy See page 9 for positive sample information. Distribution Disinfectant Total Residual Summary Percentage of samples with a detectable disinfectant 400% residual Average disinfectant residual this month us oc = {>| xxxEND_PAGE:deq04_b076_2599_2966_034 Page 8 January 2015 City of Flint Water Treatment Plant Distribution System Monitoring WSSN: 2310 o}o 3 a a et N NT 2(2/= 2 a2 Total Chlorine Residual at Bacteriological Montioring Stations ma/l Distribution Disinfectant Total Residual Summary Percent samples with a detectable disinfectant residual 400% Average disinfectant residual this month xxxEND_PAGE:deq04_b076_2599_2966_035 Distribution City of Flint Water Treatment Plant January 2015 Page 9 System Monitoring WSSN: 2310 Positive Distribution Samples [= em [mn em A nes UO ESO Rs Se a po a ee ee =< | ee ee See LT po ——— ee | |} | | > ——_—— ——— es | [| ———_— 7 | ee es ee eee po a ee a Re a a ss ee a [| —————— xxxEND_PAGE:deq04_b076_2599_2966_036 NS NSE International 9 789 N. Dixboro Rd. Ann Arbor, MI 48105, USA 1-800.NSF.MARK | +1-734.769.8010 | ww.nsf.org ™ Live Safer

- RE: September 2014 Boil Water Notice Timeline -

' Mike, Thanks for the information. Given these valve issues, would low pressure conditions less than 35 psi, be present in this portion of the system? If low pressure conditions exist, a cross connection or siphon condition where leaks.or breaks are present may be occurring. While longer transmission times may contribute to lower chlorine residual, the presence of coliform bacteria suggests contaminants have entered the system and their regrowth and resurgence could be assisted by the presence of a biofilm, tuberculation on the pipe walls, and/or phosphate coating. . Please continue with your investigation and let us know how the valve repair/replacement goes. Stephen Busch, P.E. Lansing and Jackson District Supervisor Office of Drinking Water and Municipal Assistance MDEQ 517-643-2314