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• Water is Universal Solvent <br />• Three Major Categories <br />• Dissolution <br />• Abrasion <br />• Metabolic Activity <br />• Copper Pitting <br />• A damaging, localized corrosion <br />• Pits or holes in the pipe surface can <br />occur in water supplies that meet the <br />regulatory action level for copper. <br />• Some Specific Examples: <br />• Low pH water quality <br />• Flux Corrosion <br />• Workmanship <br />• Temperature <br />• Manufacturing <br />• Dissimilar pipe interaction <br />• Elevated flow velocities <br />• Microbiological interactions <br />• Stray Electrical Currents <br />Lightning <br />LOCATION <br />READING <br />House 1 <br />150 ohm & 0.1 amp <br />House 2 <br />40 ohm & 5 amp = 200 volts OUCHH <br />House 3 <br />35 ohm & 0.1 amp <br />House 4 <br />61 ohm & 0.2 amp <br />House 5 <br />31 ohm & 0.1 amp <br />House 6 <br />9 ohm & 0.2 amp <br />• Homeowners found it difficult to believe this was not a water <br />problem!! I <br />• Water purveyor and municipal/private water utilities are NOT <br />responsible for the integrity of homeowner and customer <br />plumbing and fixtures other than that prescribed under the lead <br />and copper rule (LCR). <br />10/19/2021 <br />Source: The Constcuctor, 2021 <br />S Durce: VSEPA <br />12.H.1. <br />I <br />