1. In addition to the inspection and permitting process provided in
subsection 7.3.3.D, each owner of on-site water quality control facilities shall obtain from a qualified professional registered engineer a functionality inspection no less than once every five (5) years.
2. The first functionality test is due on or before the expiration of five (5) years from the date the facility was accepted by the City and every five (5) years thereafter.
3. Functionality inspections shall be conducted during or within 72 hours following a rain event which has produced or is producing a depth of precipitation of at least 0.5 inches over a 24-hour period, as measured by a local LCRA/NOAA rain gauge, or alternative rain gauge as approved by the City Engineer. The following, if present, must be inspected and evaluated at each water quality facility in accordance with the Design Manual, including but not limited to:
(i) Dams, berms, levees.
(ii) Spillways.
(iii) Inlets.
(iv) Pipes, culverts, and appurtenances.
(v) Outlets.
(vi) Bank erosion.
(vii) Sedimentation.
(viii) Tree/vegetation management.
(ix) Trash and debris removal.
(x) Water quality impairments.
(xi) Backup power.
(xii) Reservoir drawdown capability.
(xiii) Security issues.
(xiv) Emergency spillway/service spillway.
(xv) Service outlet structure.
(xvi) Service inlet structure.
(xvii) Downstream hazard conditions.
(xviii) Seepage on downstream slope.
(xix) Downstream embankment general condition.
(xx) Upstream embankment.
(xxi) Crest of embankment.
(xxii) Irrigation area.
4. The purpose of the functionality inspection shall be to determine if each water quality control facility is:
(i) Operating properly;
(ii) Pumps, electrical systems, and all appurtenances applicable to the BMP’s are functional;
(iii) Structurally integrity protected;
(iv) Accomplishing the purposes for which it was designed and installed; and
(v) Can be improved or modified in a manner that is likely to improve its functionality or efficiency.
5. The engineer conducting the functionality inspection shall prepare and file with the City and the owner a written report that includes the engineer’s evaluation of whether the water quality facility is accomplishing the purposes described in
subsection 4. above, including any analysis of optional actions, cost/benefit, any risk associated with the facility, and any other factor that, in the engineer’s opinion, should be brought to the attention of the owner and the City.
6. The owner is responsible for the operation and maintenance of a water quality management facility and shall make records of all maintenance installation and repairs.
7. Records of the inspection, maintenance and repairs must be completed, signed by the responsible engineer, and retained for a minimum of five (5) years for review upon City request.
8. The owner of the water quality facility shall be responsible for all costs associated with procuring the functionality inspection and shall provide a written copy of the engineer’s inspection report not later than thirty (30) days after the sooner of the fifth (5th) anniversary of the date the facility was first installed and permitted or the last functionality inspection.
9. Failure to obtain a functionality inspection may result in revocation of the owner’s permit and such other enforcement or penalties of this UDC, and other local ordinances and state and federal laws and regulations as the City may determine to be appropriate.
10. In the event that the inspection reveals that the water quality facility is not accomplishing the purposes for which it was constructed, or that new or additional BMPs, WQCs, or facilities are necessary for proper functioning of the facility or the accomplishment of its intended purposes, the owner shall be required to implement such BMPs or WQCs or to construct such facilities and, to the extent necessary, amend the applicable SWPPP, NPDES permit, water quality control maintenance plan, NPS pollution control permit, or restrictive covenant as a condition to renewal of the owner or operator’s annual operating permit.
11. Deficiencies must be addressed within ninety (90) days from the date identified unless additional time is approved by the City Engineer.
12. The person responsible for facility inspection must provide documentation to the City demonstrating that each deficiency identified in the inspection report has been corrected.
See
§ UDC-7.3.3E.
