What other hazardous locations must be included in the variance request details?

Including the distance to septic tanks and drainfields in a variance request is crucial because these sites can significantly impact groundwater quality. Contaminants from septic systems can leach into the surrounding soil and groundwater, potentially affecting water wells in the vicinity. The health and safety of the water supply must be prioritized, as inappropriate placement of wells in relation to septic systems can pose a serious risk to public health. Thus, establishing the distance to these hazardous locations is vital to ensure that the well does not adversely affect or become contaminated by these sources.

The other options, while they might be relevant for various planning and zoning considerations, do not directly impact the groundwater contamination risk in the same manner that septic tanks and drainfields do. Parks, public buildings, and residential properties might influence land use and community planning but lack the direct correlation to groundwater safety that septic systems have.