PERFORMANCE PROFILE,
Henry County #3, Missouri
1: INITIAL OPERATIONS CHALLENGES
1: Initial Operations Challenges
-
The District was in need of assistance working with wholesale
rate computations. The District had concerns about
meeting new system disinfection by-products and enhanced
coagulation
regulations. - The District needed to address issues of emergency back-up supply and treated water storage.
2: Project Background
The Henry County Public Water Supply
District #3 is a federally funded water district for Rural
Development. Its management is vested in a Board of Directors
which consists of five members located throughout each of
five sub-districts. Alliance provides complete contract management
services for the District, including operations and maintenance
of the water treatment plant, oversight maintenance and repair
of the distribution system through outside contractors, billing/collection,
management and administration for 790 customer connections
serving approximately 3,200 people.
In 1995, the District constructed and placed into service a new 0.5 mgd treatment plant. The plant is a two-stage up-flow clarifier with dual-media, gravity filtration which treats water from an abandoned limestone rock quarry. Alliance began its operation of District #3 in November 2002.
- Alliance immediately began working with the District to determine and implement appropriate wholesale rate changes.
- Plant improvements were made in 2003 to reduce disinfection by-products and enhanced coagulation, specifically TOC, THM & HAA. Plant full scale testing was done throughout 2003 to ensure compliance for the 2004 onset date. Since the conversion the District has met all THM/HAA regulations.
- Organic loading from Truman Lake caused a problem with higher finished water turbidity and short filter runs. Alliance staff identified potassium permanganate as a chemical answer, reducing the organic levels and in turn increasing filter runs two-fold while lowering finished water turbidity to ≤0.05 NTU's.
- Alliance tested and implemented alternate disinfection options to avoid disinfection byproducts (DPB's). The District saved several thousand dollars in engineering costs during the chloramines project as a result of knowledge gained from a similar project at another Alliance-managed system.
- Alliance has enhanced bill payment collections, and improved delinquent accounts and bad debts. The District has realized immediate cash gains in their local revenue accounts.