Each and every day we work hard to provide you with safe, dependable, high-quality drinking water, and each day a number of water quality tests are conducted to assure that you continue to receive this high-quality water. Your drinking water met or exceeded all regulatory requirements in 2016.
The Albemarle County Service Authority (ACSA) and the Rivanna Water and Sewer Authority (RWSA), in partnership with the Virginia Department of Health (VDH), work cooperatively to ensure that you receive a safe and reliable supply of drinking water. The RWSA collects, stores and treats the water, while the ACSA purchases the treated water and delivers it to you through our distribution system.
The ACSA is committed to providing you, the customer, with this information since informed customers are indeed our best allies. We recently expanded to an electronic distribution of this annual water quality report, and we hope you find it attractive, and easy to read and understand. We encourage you to contact us and tell us what you think of the report; your suggestions on how to improve it are always welcomed. If you wish to receive a “hard-copy” of the report, or to relay your thoughts, please contact Tim Brown at 977-4511 extension 119, or at firstname.lastname@example.org.
Gary B. O'Connell,
Albemarle County Service Authority
Your Water Supply and Treatment
The RWSA operates three water treatment plants (WTP) to provide water to the City of Charlottesville and the urban “ring” served by the ACSA. The plants, with their source of water indicated in parentheses, are as follows:
South Rivanna WTP (South Rivanna Reservoir).
Observatory WTP (Ragged Mountain and Sugar Hollow Reservoirs).
The enlarged Ragged Mountain Reservoir was 100% full in February, 2016.
North Rivanna WTP (North Fork Rivanna River).
Chris Greene Lake is used on very infrequent occasions during dry conditions, but this did not occur during 2016.
All are surface water supplies, replenished by precipitation, stream flow, overland runoff, and groundwater flow. All supplies have a low mineral content, are quite “soft” (low in hardness, or scale), and there is little of the iron or manganese that is commonly found with the groundwater of this area.
Each plant employs both physical and chemical treatment processes before releasing water into the distribution system. Sodium hypochlorite is used at all three plants to disinfect the treated water. Fluoride is added at each plant to promote good dental health. The plant that provides water to your tap may vary from time to time depending on demand, the level of storage in the system, and your location.
Planned design changes by the RWSA at all three plants will improve the treatment process, and thus, the quality of the water we deliver to you. Specifically, an effort is being made to reduce the formation of chemicals called disinfection by-products (TTHMs and HAAs; see discussion of contaminants).
The RWSA was granted an extension by the VDH related to the new, stricter requirements of the Stage 2 disinfection by-products rule until significant upgrades could be completed. An advanced treatment process that employs granular activated carbon (GAC) is being installed at each plant to result in higher quality water. These upgrades will be completed at all three plants in 2017. In the interim, powdered activated carbon (PAC) is available at each plant to meet the new water quality standards.
In addition to lowering the levels of disinfection by-products, the use of GAC should improve the taste and odor of your water, as well.
Ragged Mountain Reservoir