IMPORTANT INFORMATION ABOUT YOUR DRINKING WATER Cit OP DUQVESNE Has Levels of Disinfection Byproducts (DBPs) (Name of Water System/Business) Above Drinking Water Standards Our water system recently violated a drinking water standard. Although this is not an emergency, as our customers, you have a right to know what happened, what you should do, and We are required to monitor your drinking water for the presence of disinfection byproducts (DBPs) on a quarterly basis. The DBPs test results from thel last four (4) quarters that ended on I213112017 show that our system exceeds the standards, or maximum contaminant levels (MCLs) for total trihalomethanes (TTHM) and haloacetic acids (HAA5). MCLS for TTHM and HAA5 are calculated based on locational running annual averages (LRAA) ofsamples collected what we are doing to correct this situation. (Month/Date/Year) from the last four (4) quarters. The LRAA OfTTHM at RESEUOIC isa at 82.13mg/L, RESEVO ik (location) 14.5 (location) and HAASat NORmDL isat - mg/L. These values exceed the respective MCLs for' TTHM of0.080 mg/L and HAA5 of0.060: mg/L. What should Id do? At this time, no alternative source of water is necessary. However, if you have any specific health conçerns, consult your doctor. What does this mean? This is not an emergency. Ifitl had been, you would have been notified immediately. Some people who drink water containing trihalomethane in excess oft the MCL over many years may experience problems with their liver, kidneys, or central nervous system, and may have an increased risk of getting cancer. Some people who drink water containing haloacetic acids in excess ofthel MCL over many: years may have an increased risk of getting cancer. What Happened? What is being done? When disinfectants are used in the treatment of drinking water, disinfectants react with naturally- occurring organic and inorganic matter present in water to form DBPs. We are taking/have taken the following corrective actions: WE HAVE TRISD FLOSHIDG TECHNIQOD AND 4JOW WS HAVE APPuED Fot GAANTS TO INSTAULI MXELS + VENIS Wes anticipate resolving the problem within YEAK (Estimated time frame) Ifyoul have any questions, please contact ALcAN CHifs or 1a - S.ZND SILLET DoQucwE PA IS10 at 412-466-4455 (Phone number) (Name of water system contact) (Mailing address of PWS contact) Please share this information with all the other, people who drink this water, especially those who may not have received this notice directly (for example, people in apartments, nursing homes, schools, and businesses). You can do this by posting this notice in a public place or distributing copies by hand or mail. Date distributed: Public Water System ID# 5-21-18 502001