Missouri Code of State Regulations › Title 20 - DEPARTMENT OF COMMERCE AND INSURANCE › Division 4240 - Public Service Commission › Chapter 60 - Standards of Service by Sewer Utilities › Section 20 CSR 4240-60.020 - Engineering and Maintenance

Current through Register Vol. 49, No. 14, July 15, 2024
PURPOSE: This rule prescribes the design, operation
				  and maintenance of sewer systems.
(1) Each sewer utility shall maintain and
				operate a sewage treatment facility of adequate capacity and properly equipped
				to treat the sewage and discharge effluent of the quality required by the laws
				of the state of Missouri and in other respects shall comply with the laws and
				regulations of the state and local health authority.
(2) The design and construction of a
				utility's system of sewers, treatment facility and all additions and
				modifications shall conform to the requirements prescribed by law except that
				any rule contained in this chapter shall apply which is more stringent than
				those prescribed by the Clean Water Commission.
(3) The sewer utility shall make reasonable
				efforts to eliminate or prevent the entry of surface or ground water into its
				sanitary sewer system. It may request assistance from the appropriate state,
				county or municipal authorities, but such a request does not relieve the sewer
				utility of its responsibility to prevent the entry of such surface or ground
				water.
(4) Routine inspections
				shall be made by the utility of stream crossings where special construction is
				required at least on six (6) month intervals and more often if necessary,
				depending upon the amount of rainfall.
(5) Except where special circumstances make
				it necessary, the utility shall not accept or allow manholes that are covered
				with earth or other material that prevents the normal removal of the manhole
				lid. If an existing manhole is covered with earth or other material, the earth
				or material shall be removed as soon as is reasonably possible.
(6) All construction of sewers and
				appurtenances shall be inspected by the utility, or its authorized agent, to
				assure that they are constructed in accordance with approved plans and
				specifications and shall not be accepted until the construction complies with
				the plans and specifications. As-built plans and specifications shall be
				retained by the utility as a permanent record. All construction by other than
				company employees shall be done by a qualified contractor and materials and
				workmanship shall be guaranteed by appropriate parties for one (1) year
				subsequent to the date of acceptance.
(7) Service sewers to customers shall be
				connected to the collecting sewers by use of an approved wye or saddle. The
				same construction requirements which are used for collecting sewers shall be
				used for the construction of service sewers, except for pipe size.
(8) Unless otherwise authorized in writing by
				the commission, the utility shall make inspections of collecting sewers and
				manholes on a scheduled basis at intervals not to exceed one (1) year, unless
				conditions warrant more frequent inspections. It shall make inspections of all
				mechanical equipment on a daily basis. The utility shall maintain a record of
				findings and corrective actions required and/or taken, by location and date,
				that result from such inspections.
*Original authority: 386.310(1), RSMo 1939, amended 1979,
					 1989, 1996; 393.140(11), RSMo 1939, amended 1949,
					 1967.