N.M. Admin. Code § 20.7.3.203

Current through Register Vol. 35, No. 21, November 5, 2024

Section 20.7.3.203 - PROCEDURES; CONSTRUCTION INSPECTIONS AND TESTING

A. The department may perform site inspections prior to making a decision on a permit application or variance petition, during construction or modification of the system and after completion of the system. The department may require test holes to be excavated and documentation to be provided for purposes of determining soil types, depth of soil and water table depths. In areas where soil conditions are well characterized and groundwater depth is documented, test holes may be waived. The department may collect samples of soil, liquid waste and water, including water from wells, to determine compliance with 20.7.3 NMAC.

B. Upon granting the permit or variance application, if the department determines an inspection is necessary, the department shall indicate the point in the construction process where the first construction inspection is to be scheduled or in accordance with Subsection A of this section.

(1) The person doing the work authorized by the permit shall notify the department, orally or in writing, to schedule an inspection time, a minimum of two working days prior to the inspection. The department may assess a re-inspection fee if the work is not ready for inspection at the time of the scheduled inspection. In the event the inspection is not conducted within one hour after the appointed time of inspection, the installer shall take photographs that accurately identify the site and features of the installation and proceed with the installation. Copies of such photographs shall be submitted to the department.

(2) All homeowner installed systems shall be inspected by the department.

(3) If an inspection results in the issuance of a notice of non-approval, a re-inspection shall be required. The person shall notify the department as indicated above.

(4) An installer specialist doing the work authorized by the permit shall notify the department, orally or in writing, of the day and time the work will be ready for inspection. Such notification shall be given at least two working days, calculated to the hour, prior to the time of the requested inspection. If the department inspector does not arrive at the site within one hour of the notified time of completion, the installer specialist shall take digital photographs of all components of the installation, shall complete an inspection form provided by the department and may complete the installation. The installer specialist shall provide electronic copies of the photographs and inspection form to the department within five working days.

C. System components shall be properly identified as to manufacturer and shall meet all specifications specified in 20.7.3 NMAC.

D. The department may require testing to verify watertight construction and initial functioning of any liquid waste system.

(1) Liquid waste treatment units, pump stations or pump chambers shall be considered watertight by successfully completing one of the following testing procedures.

(a) Water pressure testing: Seal the unit, fill with water and let stand for 24 hours. Refill the unit. The unit is approved if the water level is held for 60 minutes.

(b) Vacuum testing: Seal the unit and apply a vacuum to two inches (50mm) of mercury. The unit is approved if the vacuum is held for 60 minutes.

(2) The department may require a flow test be performed through the system to the point of effluent disposal. All lines and components shall be watertight. Capacities, required air space and fittings shall meet the requirements of 20.7.3 NMAC.

(3) The department may require operational testing of advanced treatment components to verify initial functioning.

N.M. Admin. Code § 20.7.3.203

20.7.3.203 NMAC - Rp, 20.7.3.203 NMAC, 9/1/13