Impact of EPA Drinking Water Stage 2 Disinfectant and Disinfectant ...
Impact of EPA Drinking Water Stage 2 Disinfectant and Disinfectant ... Impact of EPA Drinking Water Stage 2 Disinfectant and Disinfectant ...
Amendments to Safe Drinking Water Act of 19744• Amendments to the SDWA in 1996 requireEPA to develop rules to balance the risksbetween microbial pathogens and disinfectionbyproducts (DBPs).• The Stage 1 Disinfectants and DisinfectionByproducts Rule and Interim Enhanced SurfaceWater Treatment Rule, promulgated inDecember 1998, were the first phase in arulemaking strategy required by Congress aspart of the 1996 Amendments to the SafeDrinking Water Act.Disinfection
Stage 2 Rule5• The Stage 2 Disinfectants and DisinfectionByproducts Rule (Stage 2 DBPR) builds upon theStage 1 DBPR to address higher risk public watersystems.• This final rule strengthens public health protectionby tightening compliance monitoring requirementsfor two groups of DBPs, trihalomethanes (TTHM)and haloacetic acids (HAA5).• Stage 2 DBPR requires systems to perform asystem evaluation to identify the locations withhigh DBP’s which become the systemscompliance sampling points.Disinfection
- Page 1 and 2: 1Impact of EPA Drinking Water Stage
- Page 3: 3Safe Drinking Water Act of 1974•
- Page 7 and 8: Chemistry of Chlorination7• Free
- Page 9 and 10: 9Chemistry of Chlorination• Free
- Page 11 and 12: 11Chemistry of Chlorine• Atomic N
- Page 13 and 14: 13Chemistry of Chlorination• Duri
- Page 15 and 16: 15History of Monochloramine Use•
- Page 17 and 18: 17Chemistry of ChloraminesThe Basic
- Page 19 and 20: 19Chemistry of Chloramines• The m
- Page 21 and 22: 21CleanWaterDBP: Free Chlorine Trea
- Page 23 and 24: Chloramination Process23• To form
- Page 25 and 26: Chloramination Process25• Chlorin
- Page 27 and 28: 27Chemical AdditionChemicalFeed Rat
- Page 29 and 30: 29Chemical Addition• Goal: 5:1 we
- Page 31 and 32: 31Measurement ChallengesPhotometry,
- Page 33 and 34: 33Desired Analyzer Design FeaturesP
- Page 35 and 36: 35Desired Analyzer Design FeaturesQ
- Page 37 and 38: 37Summary of Desired FeaturesA cont
- Page 39 and 40: 39Measuring Process1. Zero measurem
- Page 41 and 42: Monochloramine Monitoring41• Chlo
- Page 43 and 44: Would You Benefit?43• Would you b
- Page 45: 45Questions?Thank you for your atte
<strong>Stage</strong> 2 Rule5• The <strong>Stage</strong> 2 <strong>Disinfectant</strong>s <strong>and</strong> DisinfectionByproducts Rule (<strong>Stage</strong> 2 DBPR) builds upon the<strong>Stage</strong> 1 DBPR to address higher risk public watersystems.• This final rule strengthens public health protectionby tightening compliance monitoring requirementsfor two groups <strong>of</strong> DBPs, trihalomethanes (TTHM)<strong>and</strong> haloacetic acids (HAA5).• <strong>Stage</strong> 2 DBPR requires systems to perform asystem evaluation to identify the locations withhigh DBP’s which become the systemscompliance sampling points.Disinfection
Change language