SUB-PROBLEMS INCLUDING LEADING TO IMPAIRMENT AND BEST PRACTICES FOR PRIVATE SEWAGE SYSTEMS (ON-SITE SEWAGE DISPOSAL)
Size and Nature of Land for Houses
The size and nature of the land used for new houses is of considerable importance since there has to be adequate space for disposal of the effluent and the soil must be able to allow it to be dispersed in a safe and sanitary manner. As has been indicated previously, there are many structures that have been built on improperly sized pieces of land and in many cases the soil cannot accept more than a small amount of effluent without the liquid rising to the top or back flowing into the structure.
Best Practices for Determining the Size and Nature of Land to Be Used for New Houses
- (See endnote 2)
- • Before issuance of a septic tank permit, house plans including layouts of the structures must be submitted to the licensing authority and reviewed in depth for: size of building lot; location of structure compared to existing structures, driveways, graded cuts and concrete pads; number of potential bedrooms; depth of house sewer as it exits the structure to make sure that the disposal system will not be too deep; elevations of various concrete pads to ensure that the layout of the system can actually be implemented; removal of all trees and bushes within the absorption field; placement of water wells on the lot; and location of wells and septic systems on adjoining properties.
- • Have a professional design a septic system according to the soil permeability, peak daily flow of sewage in gallons per day based on the number of bedrooms, and total usable land area for the septic system utilizing all restrictions for easements, watercourses, other wells, and septic systems. Submit this plan along with the house plan to the appropriate public health authority for approval. Include all soil testing results.
- • The bottom of the proposed septic system must be above the highest anticipated groundwater level in that area with the distance between the two varying from jurisdiction to jurisdiction depending on the type of soil and the local and state regulations.