R317-401-4. Permitting or Approval Requirements

(a) Designer certified at Level 3, in accordance with the requirements of R317-11, shall design the graywater systems.

(b) The local health department may require the following information with or in the plot plan before a permit is issued for a graywater system:

(i) plot plan drawn to scale, completely dimensioned, showing lot lines and structures, direction and slope of the ground, location of all present or proposed retaining walls, drainage channels, water supply lines, wells, paved areas and structures on the plot, other utilities, easements, number of bedrooms and plumbing fixtures plan in each structure, location of onsite wastewater system and replacement area of the onsite wastewater system, or building sewer connecting to a public sewer, and location of the proposed graywater system;

(ii) a log of soil formations and identification of the maximum anticipated ground water level as determined by the minimum of one test hole, dug in close proximity, two feet below the bottom of the subsurface irrigation field or drip irrigation area together with a statement of types of soil based on soil classification at the proposed site. Soil and groundwater evaluations will be conducted by professionals fulfilling the requirements of R317-11;

(iii) details of construction necessary to ensure compliance with the requirements of this rule together with full description of the complete installation including installation methods, construction and materials, as required by the local health department; and

(iv) other pertinent information the local health department may deem appropriate.

(c) The installed graywater system shall be operated only after receiving a written approval or an authorization from the local health department after the local health department has made the final construction inspection.

(d) The local health department will require written operation and maintenance procedures including checklists and maintenance instructions from the designer.

(e) No graywater system, or part thereof, shall be located on any lot other than the lot which is the site of the building or structure which discharges the graywater unless, when approved by the local health department, a perpetual utility easement and right-of-way is established on an adjacent or nearby lot.

(f) Onsite wastewater systems existing or to be constructed on a given lot shall comply with the requirements of R317-4 or more restrictive local requirements. The capacity of the onsite wastewater system, including required future areas, shall not be decreased by the existence or proposed installation of a graywater system servicing a given lot.

(g) No potable water connection will be made to the graywater system without an air gap or a reduced pressure principle backflow prevention assembly for cross connection control, in accordance with R309-105.

(h) When abandoning a graywater system,

(i) the owner of the real property on which such system is located shall render it safe by having the surge tank pumped out only in a manner approved by the health department;

(ii) the surge tank shall be filled completely with earth, sand or gravel within 30 days;

(iii) the surge tank may also be removed within 30 days, at the owner's discretion;

(iv) the approving local health department shall be notified at least 30 days before the planned abandonment.