08-09-1993 Council Packet - Laserfiche WebLink

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per cent or more. arn Catch basins All newly installed and rehabilitated catch basins shall be provided with a sump V?. • area for th^rollection of coarse-grained material. Such basins shall be cleaned when they arc half filled with material. JLTf Drain leaders All newly constructed and reconstructed buildii^s will route drain leaders to u . pervious are^ wherein the runoff can be allowed to infiltrate. The fiow rate of water exiting the leaders shall be controlled so no erosion occurs in the pervious areas. g 15' Tmngction and maintenance. All storm water management facilities shall be designed io • minimize the need of mainTenancc. to provide access for maintenance purj^scs and to be ’ structurally sound- All storm water management facilities shall have a plan of operation and maintenance that assures continued effective removal of pollutants carried in storm water runoft The director of public works, or designated representative, shall inspect all storm water management facilities during construction, during the first year of operation, and at least once every five years thereafter. The inspection records will be kept on file at the public works department for a period of 6 years. It shall be the responsibility of the applicant to obtain any necessary casements or other property interests to allow access to the. storm water management facilities for inspection and maintenance purpose. Models/methodologies/comoutations . Hydr^pgic models ana design methodologies u^d for the determin^fi^" ^ and analysis^! storm water management structures shall be aooroved by tho^iTector of pubfic worksO Plans, specification and computations for storm water managemW'^cilities submitted for review shall be sealed and signed by a registered professional engineer. All computjtions^shalLappeaiL^ the plans submitted for review, unless otherwise approved by thcmrector of public work^. c (’•A. x Watershed management ola ns/groundwater management plans. Storm water management ^ O plans shall be consistent with adopted watershed management plans and groundwater management plans prepared in iccordancc with Minnesota Statutes section 103B.231 and 103B.255 respectively, and as approved by the Minnesota Board of Water and Soil Resources in accordance with state law. 8L1^ Easements. If a storm water management plan involves direction of some or all runoff off jhe responsibility of the applicant to obtain from adjacent property owners any necessary casements or other property interests concerning flowage of water. 9. LAWN FERTILIZER REGULATIONS 3^/X • Use of impervious surfaces. No person shall apply fertilizer to or deposit grass clippings, ^ leaves, or other vegetative materials on impervious surfaces, or within storm water drainage systems, natural drainage ways, or within wetland buffer areas. D . Unimproved land areas. Except for driveways, sidewalks, patios, areas occupied by structures or areas which have been improved by landscaping, all areas shall be covered by plants or vegetative growth. Q/CQ Fertilizer content . Except for the first growing season for newly established turf areas, no ' person shall apply liquid fertilizer which contains more than one-half percent by weight o phosphorus, or granular fertilizer which contains more than three percent by weight o phosphorus, unless the single application is less than or equal to one-tenth pound o phosphorus per one thousand square feet. Annual application amount shall not exceed one- half pound of phosphorus per one thousand square feet of lawn area.