The Pros & Cons of Water Meter Automation
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This document summarizes topics from a water system workshop presented by ABT Water Management, Inc. It discusses definitions of public and community water systems, responsibilities of water suppliers under the Safe Drinking Water Act, water quality testing requirements, water treatment options and costs, infrastructure considerations like piping materials and valves, and strategies for increasing water revenue through activities like audits, leak detection, metering, and sewerage rebates from metered systems. The workshop covered regulatory compliance, technical operation, and financial management of small water systems.
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The Pros & Cons of Water Meter Automation
- 1. Presented by: ABT Water Management, Inc. Water System Workshop
- 3. • SWDA • Water System Infrastructure • Water Quality /Treatment • Water Revenue vs. Expense Topics
- 4. • Provision of water from a source of supply to consumer via conveyances. • 15 service connections • 25 individuals 6 months What Is a Public Water System?
- 5. • Serves the following. • 15 service connections • 25 individuals 6 months What Is a Community Water System?
- 6. • Safe Water as provided in the SDWA • Aesthetics from secondary standards Main responsibilities for a water supplier?
- 7. Annual expenditures will continue to rise. As more requirements are added. AdditionalTesting, Certified Operator Consumer Confidence Reports etc... SDWA Enforced by ILEPA
- 9. • BacteriologicalTesting • Total Coliform • Fecal Coliform • eColi • Heterotrophic Plate Count
- 10. • VOC -Volitile Organics Compounds • Chloroform1 Bromoform1 Chlorodibromomethane1 Bromodichloromethane1 Bromobenzene Bromomethane Chloromethane Chloroethane o–Chlorotoluene p–Chlorotoluene Dibromomethane m–Dichlorobenzene 1,1–Dichloropropene 1,1–Dichloroethane 1,3–Dichloropropane 2,2–Dichloropropane 1,3–Dichloropropene 1,1,1,2–Tetrachloroethane 1,1,2,2–Tetrachloroethane 1,2,3–Trichloropropane 1,2,4–Trimethylbenzene 1,2,3–Trichlorobenzene n–Propylbenzene n–Butylbenzene Napthalene Hexachlorobutadiene 1,3,5–Trimethylbenzene p–Isopropyltoluene Isopropylbenzene Tert–butylbenzene Sec–butylbenzene Fluorotrichloromethane Dichlorodifluoromethane Bromochloromethane
- 11. • SOC - Synthetic Organic Compounds • Alachlor Atrazine Carbofuran Chlordane Dibromochloropropane 2,4–D Endrin Ethylene Dibromide Heptachlor Heptachlor epoxide Lindane Methoxychlor Polychlorinated biphenyls (PCBs) Pentachlorophenol Toxaphene 2,4,5–TP Benzo[a]pyrene Dalapon Di(2–ethylhexyl)adipate Di(2–ethylhexyl)phthalate Dinoseb Diquat Endothall Glyphosate Hexachlorobenzene Hexachlorocyclopentadiene Oxamyl Picloram Simazine 2,3,7,8–TCDD (Dioxin)
- 12. • IOC - Inorganic Compounds • Antimony Asbestos Arsenic Barium Beryllium Cadmium Copper Chromium Cyanide Fluoride Lead Mercury Nickel Nitrate Nitrite Selenium Thallium Turbidity
- 13. • RadioactivityTesting • Gross Alpha • Uranium 226 & 228
- 14. • Secondary Standards • Aesthetics • Fe, Mn, CaCo3, H2S • Corrosion Control Study Evaluation
- 15. • Continued testing • Ongoing reporting • Additional requirements • Cost will continue to rise SDWA Summary
- 16. System Design Considerations Pipe Material Valves Hydrants Loops Main & Lateral $1000 per Blue Line Represents Water Lines and laterals Well House Well House Timber Ridge MHP Top View of 2 homes Curb Key Main Lateral Lines
- 17. Blue Line Represents Water Lines and laterals Top View of 2 homes Curb Key Main Lateral Lines Main to Lateral including Curb key for individual home shut off.
- 18. • Most piping systems have 25yr life • Upgrading should include hydrants, curb stops, and main line valving • Well pumps should be perodically cleaned • Piping materials should be chosen with water quality in mind. Infrastructure Summary
- 19. Water Quality Charging for water may require a higher standard for consumers
- 20. Red Water from Iron and Corrosion
- 21. Black Water from Manganese and Corrosion
- 22. Lime Scale Build Up
- 23. Iron Sludge in PVC pipe
- 25. Lime / Iron Build up in Copper Pipe
- 26. • Mechanical Filtration • Ion exchange • Sequestration • Corrosion Inhibitors • Disinfection Treatment Options
- 27. • Mechanical Filtration $5,000-$25,000 • Ion exchange $2,500 - $10,000 • Sequestration $1000 - $2,500 • Corrosion Inhibitors $1000 - $2,500 • Disinfection $1000 - $2,500 • Ongoing cost $300 - $500 per month Treatment Cost
- 28. • Identify your specific problem • Identify your treatment goal • Investigate potential adverse affects • Compare upfront cost with ongoing expense • Some problems may require more than one technology to solve Water Treatment Summary
- 29. • Water / Sewer Audits • Leak Detection / Inspection • Metering (sub-metering) • Sewerage rebates from metered systems Revenue Potential Vs. Expenditures
- 30. • Water / Sewer Audits • Comparison to Standards • Average metered home 130-150 gpd • Average un-metered home 175 - 200 gpd Revenue Potential Vs. Expenditures
- 31. • Leak Detection / Inspection • Underground leaks found by visual, sounding, infered • Home leaks found by individual inspection Revenue Potential Vs. Expenditures
- 32. • Metering (sub-metering) • Each home in a community is metered and residents are billed according to their own consumption level Revenue Potential Vs. Expenditures
- 33. • MeterTypes • Pulse, Encoded Register • Outside Mechanical / LCD Display • Touch Reading • RF Technology Revenue Potential Vs. Expenditures
- 34. • Meter Billing Options • Revenue should mirror expenses • Self generated bills • Third party billing services including web based services. Revenue Potential Vs. Expenditures
- 35. • Sewerage rebates from metered systems • Wastewater charges for water leaks can be a significant short term revenue source. Revenue Potential Vs. Expenditures
- 36. • Water / Sewer Audits • Leak Detection / Inspection • Metering (sub-metering) • Sewerage rebates from metered systems Revenue Potential Summary
- 38. Presented by: ABT Water Management, Inc. Water System Workshop