The Lake Herman Sanitary District lacks the population and tax base to build such a centralized system. All wastewater treatment in the District is thus handled by on-site systems—septic tanks, holding tanks, and one holding pond—maintained by individual property owners. The District focuses on inspecting new and existing systems.
Preliminary data from a volunteer bacteria monitoring project sponsored by the East Dakota Water Development District showed high coliform bacteria counts during April and May 2007. Those counts declined through June, July, and August 2007. Continued monitoring in 2008 found consistently low levels of coliform bacteria, almost all within EPA standards for recreational use. These data suggest that significant surges in contamination present in the lake may come not from regular seepage of human waste from septic systems but from spring run-off from agricultural operations in the Lake Herman watershed. As many possible sources of contamination—feed lots, cattle grazing in or near waterways, manure spread as fertilizer—lie outside the Lake Herman Sanitary District, it is possible that a centralized sewer system would produce little to no improvement in water quality in Lake Herman.
Each year one seat on the sanitary district board comes up for election. Nominating petitions are made available for circulation each June. Elections, if necessary, are held in mid-July. Residents of the district interested in serving on the board are encouraged to keep an eye on the Madison Daily Leader and this website for notices of vacancies and elections.