2019.02.04 CC Packet - Laserfiche WebLink

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Effective April 28, 2015 Chapter Four Subsurface Sewage Treatment System Regulations SECTION 4 COMPLIANCE CRITERIA 4.1 Treatment required. Sewage discharged from a dwelling, group of dwellings, or other establishment that is not served by a system issued an operating permit containing effluent and discharge limits or specific monitoring requirements must be treated according to applicable requirements. 4.2 Compliance criteria for new construction. An SSTS regulated under a current permit is considered compliant if it meets the applicable requirements of Section 16 to Section 21. 4.3 Compliance criteria for existing systems. To be in compliance, an existing SSTS must meet the provisions of this subpart. (1) The SSTS must be protective of public health and safety. A system that is not protective is considered an imminent threat to public health or safety. At a minimum, a system that is an imminent threat to public health or safety is a system which discharges sewage or sewage effluent to the ground surface, drainage systems, ditches, or storm water drains or directly to surface water; systems that cause a reoccurring sewage backup into a dwelling or other establishment; systems which pose electrical hazards; systems which have sewage tanks that are unsecured, damaged, or with weak maintenance hole covers. A determination of protectiveness for other conditions must be made by a qualified employee of the Department or licensed inspection business. (2) The SSTS must be protective of groundwater. A system that is not protective is considered a system failing to protect groundwater. At a minimum, a system that is failing to protect groundwater is a system that is a cesspool,; a system with less than the required vertical separation distance described in Section 4.3 (4) and Section 4.3 (5) of this Section; and a system not abandoned in accordance with Section 24. A determination of the threat to groundwater quality for this and other conditions must be made by a qualified employee of the Department or licensed inspection business. (3) The SSTS must meet performance standards, be managed and operated according to its operating permit. (4) SSTS built after March 31, 1996, or in an SWF area as defined in Section 2.2 (122), shall have a three (3) foot vertical separation. No more than a fifteen (15) percent reduction in the vertical separation distance is allowed to account for settling of sand or soil, normal variation of measurements, and interpretations of the limiting layer conditions. (5) SSTS built before April 1, 1996, in areas that are not SWF areas as defined in Section 2.2 (122), must have at least two (2) feet of vertical separation. (6) The vertical separation measurement for Section 4.3 (4) and Section 4.3 (5) shall be measured outside of the area of system influence in an area of similar soil and on the same contour elevation. (7) An existing SSTS which is found to be an imminent threat to public health and safety by a qualified employees of the Department, or a licensed inspection business, is hereby declared to be a public health nuisance and shall be abated within ten (10) days from the date the Owner is given notice. The system shall be repaired, upgraded, replaced or its use discontinued within ninety (90) days from the date the Department gives the Owner notice and order to comply by the Department. Any further discharge of effluent must be prevented within ten (10) days (by such methods as reducing or stopping all water use or pumping the tank as necessary) until such time as the system is corrected. (8) Any existing system which is found to be failing to protect groundwater shall be replaced or otherwise brought into compliance within six (6) months of notice and order to comply by the Department. The Department may grant a one-time, six month extension. (9) An existing system that is not a cesspool, drywell, leaching pit or seepage pit or not considered an imminent threat to public health and safety need not be upgraded, repaired, replaced, or its use discontinued notwithstanding the fact that at the time of a compliance inspection, there appears to 23 Washington County Development Code