1 / 13

Water Management and Quality Challenges in Lake Michigan Utilization

Lake Michigan serves as a crucial water source for over 40 plants across Illinois, Wisconsin, Michigan, and Indiana. These facilities, designed for extreme water levels, employ numerous treatment processes such as filtration, disinfection, and advanced technologies to ensure safe drinking water. Regulated substances are maintained well below standards, but challenges from climate change affect water quality and demand. Providers remain optimistic about their capabilities to adapt to changing conditions, including potential extensions of water intakes.

serge
Télécharger la présentation

Water Management and Quality Challenges in Lake Michigan Utilization

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Drinking Water and the Lake • There are 40+ plants utilizing Lake Michigan Water • Illinois, Wisconsin, Michigan, Indiana • Sizes of 1 MGD to 1 BGD • Designed for 100 year Lake lows and highs

  2. Numerous Treatment Processes • Filtration • Sand, anthracite, granular activated carbon, membranes • Disinfectantion • Chlorine gas, bleach, chloramines, ozone, investigating ultra-violet disinfection

  3. Excellent Water Source Regulated substances include: • Arsenic is 50 times lower than standard • Barium is 10 times lower than standard • Nitrate is 20 times lower than standard • Bacteria routinely exceed standards Over 360 other compounds are monitored and not detected.

  4. Climatic Change Factors • Source water • Water level • Water quality • Water temperature • Water demand • Precipitation • Temperature

  5. Lake Level Impacts • High Water Levels • Some shore facilities may require flood protection • Ability to supply water to plant may improve • Low Water Levels • Improved protection of shore facilities • Some intake may require extension

  6. Typically 1000 – 5000’ out into the Lake Typically 25 – 40’

  7. Primary Water Quality Impacts • Algal mass • Impacts how often filters require cleaning • Taste and odors in the Lake • Turbidity • Impacts treatment chemical usage • Sludge removal operations • Filter runs

  8. Water Temperature • Water Production • Ice formation on intakes slows flow • Water Treatment • Coagulation and flocculation • Disinfection

  9. Water Demand • Water production can double in the Summer • Sustained hot dry weather increases demand • Water plants sized and expanded to meet maximum flow day

  10. Global Warming Impacts • Water Treatment • Providers are confident that potential challenges are surmountable • Water Production • Some intakes may require extension to deeper water • Most providers cautiously optimistic about impact of a one meter drop in Lake level

  11. West Shore Water Producers Association www.wswpa.com

More Related