Protect and maintain existing groundwater flow, promote groundwater recharge and improve groundwater quality and aquifer protection.
Maintenance of groundwater recharge is important in the Schutz Lake subwatershed to maintain hydrology to the groundwater-fed discharge wetlands in the central subwatershed as well as to recharge aquifers that supply public and private drinking water wells. Development, with the associated creation of new impervious surface, increases the volume of stormwater runoff and reduces the amount of stormwater that naturally percolates into the soil to recharge groundwater.
Increased infiltration in the Schutz Lake subwatershed is desirable for two primary reasons: to reduce the amount of pollutant loading into Schutz Lake, and to protect the hydrology of the large discharge (groundwater-fed) wetlands in the subwatershed. Many of those wetlands are key resources with high ecological values that are dependant on groundwater to maintain those functions and values. Much of the subwatershed has at least moderate infiltration potential. Requiring new development and redevelopment to infiltrate some of the new stormwater generated would reduce new volumes downstream and help reduce future erosion in streams and channels; minimize new pollutant loading that would have been conveyed by that stormwater; and help maintain groundwater levels, preserving wetlands.
Some parts of the subwatershed are areas of aquifer sensitivity or are potentially drinking water wellhead protection areas, where care should be taken when infiltrating stormwater. Proper design of infiltration practices is necessary to avoid groundwater contamination. Other land use practices such as the use of private water wells or individual sewage treatment systems, or agricultural practices such as the use of chemicals and handling of animal waste should be monitored to prevent contamination of groundwater resources.
Groundwater management in the Schutz Lake subwatershed will focus on increasing the amount of infiltration in the subwatershed, and minimizing opportunity for groundwater contamination from land use practices.
Desired Outcomes: Maintain function of existing groundwater flow, assist in the protection of drinking water supply, no degradation in surficial groundwater quantity or quality.
Protect and maintain groundwater recharge and groundwater quality.