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The operations department includes more than half of the district’s employees and is responsible for wide-ranging services including all of our water, wastewater, and recycled water systems, as well as our hydropower project and parks and recreation. EID’s contiguous service area spans 220 miles and ranges from 500 feet in elevation at the Sacramento county line to more than 4,000 feet in the Sierra Nevada range. The system requires 200 pressure-regulation zones to operate reliably and more than 1,245 miles of pipeline, 27 miles of ditches, five water treatment plants, 36 storage reservoirs, and 37 pumping stations.

The district operates four wastewater treatment plants, treating an average of five million gallons of wastewater a day to California’s very stringent tertiary standards. EID operates 560 miles of wastewater collection pipes, which includes sewer mains and laterals. The district also operates 64 lift stations to help move the waste within our challenging terrain.

Wastewater treated at the El Dorado Hills and Deer Creek plants becomes recycled water, which is used to irrigate nearly 4,000 front and back yards of homes as well as commercial and public landscapes.

The parks and recreation division manages Sly Park Recreation Area and a number of facilities such as Silver Lake West campground that are associated with EID’s hydroelectric power generation system (Project 184). Recreation employees are responsible for overseeing proper maintenance of all EID recreation facilities and managing visitors as they enjoy various activities — from camping, picnicking, boating, fishing and swimming to hiking, biking, and horseback riding.

Operations Director Margaret Washko has worked in the industry for over 26 years and has 18 years of management experience. Margaret has served various industries and communities assisting with plant designs for nutrient removal overseas in the early 1990’s, full automation of a joint venture plant outside of Chicago, and most recently the $160 million dollar wastewater plant design, construction and startup for the City of Petaluma. A registered chemical engineer and a certified Grade V wastewater operator, she has extensive experience in workforce safety and empowering team members to do the whole job which over the years has created many process efficiencies.

Margaret earned her engineering degree from Virginia Tech in 1990. Margaret and her husband Brian moved to Placerville in 2015 when she became the Division Manager for Wastewater / Recycled Water.


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