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HomeMy WebLinkAboutResolution - 6241 - Establish Policy - Playa Lake Development - Stormwater Detention Basin Or Parks - 03_25_1999Resolution No. 6241 Item No. 37 Larch 25, 1999 RESOLUTION WI IEREAS, the City Council of the City of Lubbock deems it to be in the best interests of the health and safety of the citizens of Lubbock to establish a Policy for Playa Lake Development, including criteria for the development and/or acceptance of playa lake areas situated within the City of Lubbock as stormwater detention basins or parks, NOW THEREFORE: BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF LUBBOCK: THAT the City Council of the City of Lubbock hereby approves and adopts the attached City of Lubbock Policy for Playa Lake Development, which Policy shall be spread upon the minutes of the Council and as spread upon the minutes of this Council shall constitute and be a part of this Resolution as if full copied herein in detail. Passed by the City Council this 25thday of ATTEST: il,-" 1h, A Kayth� amell, City Secretary APPROVED kS TO CONTENT: Laity Hertel, City Engineer APPROVED AS TO FORM: ald G. Vandiver, First .Assistant City Attorney Iklresdlla�a.To doc March 3. 109() March , 1999, INDY S16*0R'FvfAYOR CITY OF LUBBOCK POLICY for PLAYA LAKE DEVELOPMENT A. PURPOSE March ZS, 1999 The purpose of this policy is to establish criteria for the development and/or acceptance of playa lake areas as stormwater detention basins or parks. The minimum development standards for stormwater detention basins shall apply to all developing or redeveloping playa lakes regardless of ownership. B. CURRENT PRACTICE The Code of Ordinances currently requires that lake areas be dedicated as stormwater drainage and impoundment easement areas necessary for flood control and preservation of natural drainage. Currently playa lake areas may be reviewed by the Parks and Recreation Department for a recommendation to the Parks Board as to the need of the lake area as a City park. C. DEFINITIONS Stormwater Detention Basin - A lake area dedicated for the primary use of stormwater impoundment. Undeveloped open space activities may also exist. City Park - An area, which may include a playa lake, defined by the City of Lubbock Civic Services Division as an area providing for public open space and associated recreational activities. D. AREA OF RESPONSIBILITY The playa lake ownership policy applies only to those lake areas that are totally within the Lubbock city limits. E. ELIGIBILITY FOR CITY OWNERSHIP OF LAKE AREAS Playa lakes are an essential element of drainage systems both in and adjacent to the City of Lubbock. When critical amounts of development have occurred within any particular watershed, the public may benefit from owning the property as part of the overall system. Proposals for ownership shall include a determination by the City Council that a substantial benefit shall accrue to the public. No lake areas will be accepted in relatively undeveloped areas unless circumstances exist which merit an exception. A playa lake, determined to benefit the public, is eligible for ownership by the City of Lubbock provided that the requirements set forth by this Policy are met. F. DEVELOPMENT REOUTREMENTS F.l. Developing Lakes as Stormwater Detention Basins F.l.a. Minimum Development Requirements Playa lakes, regardless of ownership, will meet requirements set forth by the City of Lubbock Code of Ordinances and the Drainage Criteria Manual unless otherwise approved, in writing, by the City Engineer and/or approved by the Planning and Zoning Commission. In addition, the following shall be done prior to acceptance by the City: The lake basin shall be graded in accordance with City of Lubbock Code of Ordinances and the Drainage Criteria Manual. Any playa lake requested for City acceptance which has side slopes that exceed the maximum slopes allowed by the Code of Ordinances and Drainage Criteria Manual shall be considered on a case by case basis by the City Engineer. The Owner/Developer of a lake area with excessive side slopes may be required to reshape the cut and/or fill slopes of the lake prior to acceptance. 2. The Owner/Developer shall install erosion control measures in areas of channelized flow as approved by the City Engineer. The area between the normal high hater level, if evident, or a level equivalent to the 5-year, 24-hour rainfall event and the 100-year, 24- hour rainfall high water elevation shall have top soil to a minimum of 2 inch depth where it can be seeded with native buffalo grass or an approved equal. The rate of application shall be approved by the City Engineer and the Parks and Recreation Manager so as to control erosion around the lake area. If the lake is still in its natural state and not being modified through a cut and fill operation then some requirements may be waived. In proper locations, opportunities for preserving and maintaining the natural habitat will be considered. F.I.b. Minimum Water Quality Requirements The Owner/Developer will be required to sample the water in any playa lake proposed for City ownership. Grab samples should be taken from the lake area and analyzed for the elements, listed in the City's EPA Stormwater Permit, to determine if there are an_y significant water quality problems in the lake. Once completed, the tests results shall be furnished to the City Engineer for review. if there appears to be a significant water duality problem, based on the analysis, the City Engineer could require that the problem be corrected before assuming ownership of the lake area as public property. If the take bottom is dry then a soil sample will be analyzed for the same elements as required in the City's EPA Stormwater Permit, F. Le. Existing Facilities The Owner/Developer will make the City Engineer aware of any privately constructed facilities (i.e. buildings, parking lots, pumps, aeration devices, etc.) existing within the lake areas. The City Engineer and Parks and Recreation Manager will review the existing facilities to determine if they will be allowed to remain in place. Any facility determined to be of no benefit to the City will be removed by the Owner/Developer prior to acceptance. Any existing facility that remains in place in order to serve adjacent private property may require a maintenance agreement to be established whereby the private property owner will continue to maintain the existing facility within the lake area. F.2. Previously Developed Lakes Dedicated as Stormwater Detention Basins F.2.a. Minimum Development Requirements Playa lakes will meet requirements set forth by the City of Lubbock Code of Ordinances and the Drainage Criteria Manual unless otherwise approved, in writing, by the City Engineer and/or approved by the Planning and Zoning Commission. The following shall be done prior to acceptance by the City: The lake basin shall be graded in accordance with City of Lubbock Code of Ordinances and the Drainage Criteria Manual. Any playa lake requested for City acceptance which has side slopes that exceed the maximum slopes allowed by the Code of Ordinances and Drainage Criteria Manual shall be considered on a case by case basis by the City Engineer. The Owner/Developer of a lake area with excessive side slopes may be required to reshape the cut and/or fill slopes of the lake prior to acceptance. 2. The Owner/Developer shall install erosion control measures in areas of channelized flow as approved by the City Engineer. The area between the normal high water level, if evident, or a level equivalent to the 5-year, 24-hour rainfall event and the 100-year, 24- hour rainfall high water elevation shall have top soil to a minimum of 2 inch depth where it can be seeded with native buffalo grass or an approved equal. The rate of application shall be approved by the City Engineer and the Parks and Recreation Manager so as to control erosion around the lake area. If the lake is still in its natural state and not modified through a cut and fill operation then some requirements may be waived. In proper locations, opportunities for preserving and maintaining the natural habitat will be considered. F.2.b. Minimum Water Quality Requirements The Owner/Developer will be required to sample the water in any playa lake proposed for City ownership. Grab samples should be taken from the lake area and analyzed for the elements, listed in the City's EPA Stormwater Permit, to determine if there are any significant water quality problems in the lake. Once completed, the tests results shall be furnished to the City Engineer for review. If there appears to be a significant water quality problem, based on the analysis, the City Engineer could require that the problem be corrected before assuming ownership of the lake area as public property. If the lake bottom is dry then a soil sample will be analyzed for the same elements as required in the City's EPA Stormwater Permit. F.2.c. Existing Facilities The Owner/Developer will make the City Engineer aware of any privately constructed facilities (i.e. buildings, parking lots, pumps, aeration devices, etc.) existing within the lake areas. The City Engineer and Parks and Recreation Manager will review the existing facilities to determine if they will be allowed to remain in place. Any facility determined to be of no benefit to the City will be removed by the Owner/Developer prior to acceptance. 4 Any existing facility that remains in place in order to serve adjacent private property may require a maintenance agreement to be established whereby the private property owner will continue to maintain the existing facility within the lake area. F.3. Developing Lakes as City Parks F.3.a. Minimum Development Requirements If a playa lake falls within an area where the need for park property is indicated in the Parks Master Plan or by the Parks Board, the Owner/Developer may negotiate for the acceptance of the lake property as a dedicated park. The Owner/Developer shall coordinate with the Parks and Recreation Manager on any issue pertaining to park development. If a playa lake area is to be dedicated as a park, then the property will meet requirements set forth by the City of Lubbock Code of Ordinances and the Drainage Criteria Manual unless alternatives are approved within a cut and fill plan approved by the Planning and Zoning Commission. The following shall be considered prior to acceptance by the City: 1. A cut and fill plan meeting City of Lubbock Codes of Ordinance and the Drainage Criteria Manual, as well as being suitable to the atmosphere of the proposed park, shall be submitted and approved by the City. 2. Property dedicated for public use shall meet the minimum requirements for area located above high water set forth by the City of Lubbock Parks Master Plan or negotiated with the Parks and Recreation Board. The Owner/Developer shall install erosion control measures in areas of channelized flow as approved by the City Engineer and Parks and Recreation Manager. 4. The entire area above the normal water level shall be seeded with a seed mix approved by the Parks and Recreation Manager. Trees shall be installed as per the requirements set forth by the Parks and Recreation Manager. 6. An irrigation system, approved by the Parks and Recreation Manager, shall be installed by the Owner/Developer prior to any vegetative cover being placed around the lake area. Any variances to the policy elements required for a Park shall be approved in writing by the Parks and Recreation Manager and/or the Parks and Recreation Board. F.3.b. Minimum Water Quality Requirements The Owner/Developer will be required to sample the water in any playa lake proposed for City ownership. Grab samples should be taken from the lake area and analyzed for the elements, listed in the City's EPA Stormwater Permit, to determine if there are any significant water quality problems in the lake. Once completed, the tests results shall be furnished to the City Engineer for review. If there appears to be a significant water quality problem, based on the analysis, the City Engineer could require that the problem be corrected before assuming ownership of the lake area as public property. If the lake bottom is dry then a soil sample will be analyzed for the same elements as required in the City's EPA Stormwater Permit. F.3.c. Existing Facilities The Owner/Developer will make the City Engineer aware of any privately constructed facilities (i.e. buildings, parking lots, pumps, aeration devices, etc.) existing within the lake areas. The City Engineer and Parks and Recreation Manager will review the existing facilities to determine if they will be allowed to remain in place. Any facility determined to be of no benefit to the City will be removed by the Owner/Developer prior to acceptance. Any existing facility that remains in place in order to serve adjacent private property may require a maintenance agreement to be established whereby the private property owner will continue to maintain the existing facility within the lake area. FA. Previously Developed Lakes Dedicated as City Parks F.4.a. Minimum Development Requirements Playa lakes will meet requirements set forth by the City of Lubbock Code of Ordinances and the Drainage Criteria Manual unless otherwise approved, in writing, by the City Engineer. The following shall be done prior to acceptance by the City: A cut and fill plan meeting City of Lubbock Codes of Ordinance and the Drainage Criteria Manual, as well as being suitable to the atmosphere of the proposed park, shall be submitted and approved by the City. 2. Property dedicated for public use shall meet the minimum requirements for area located above high water set forth by the City of Lubbock Parks Master Plan or negotiated with the Parks and Recreation Board. The Owner/Developer shall install erosion control measures in areas of channelized flow as approved by the City Engineer and Parks and Recreation Manager. 4. The entire area above the normal water level shall be seeded with a seed mix approved by the Parks and Recreation Manager. Trees shall be installed as per the requirements set forth by the Parks and Recreation Manager. 6. An irrigation system, approved by the Parks and Recreation Manager, shall be installed by the OwnerlDeveloper prior to any vegetative cover being placed around the lake area. Any variances to the elements required for a Park shall be approved in writing by the Parks and Recreation Manager and/or the Parks and Recreation Board. FA.b. Minimum Water Quality Requirements The Owner/Developer will be required to sample the water in any playa lake proposed for City ownership. Grab samples should be taken from the lake area and analyzed for the elements, listed in the City's EPA Stormwater Permit, to determine if there are any significant water quality problems in the lake. Once completed, the tests results shall be furnished to the City Engineer for review. If there appears to be a significant water quality problem, based on the analysis, the City Engineer could require that the problem be corrected before assuming ownership of the lake area as public property. If the lake bottom is dry then a soil sample will be analyzed for the same elements as required in the City's EPA Stormwater Permit. FA.c. Existing Facilities The Owner/Developer will make the City Engineer aware of any privately constructed facilities (i.e. buildings, parking lots, pumps, aeration devices, etc.) existing within the lake areas. The City Engineer and Parks and Recreation Manager will review the existing facilities to determine if they will be allowed to remain in place. Any facility determined to be of no benefit to the City will be removed by the Owner/Developer prior to acceptance. Any existing facility that remains in place in order to serve adjacent private property may require a maintenance agreement to be established whereby the private property owner will continue to maintain the existing facility within the lake area. G. ACCEPTANCE STANDARDS FOR DEVELOPING LAKE AREAS The following standards must be met, or properly secured, prior to the final plat of the stormwater detention basin or park being accepted and recorded: 1. The requirements for minimum development standards for stormwater detention basins are in place and appear to be operating efficiently. If the lake area is to be a City park, any additional improvements as agreed upon by the Owner/Developer and the City shall be installed or properly secured. Z. The water quality tests have been performed and any modifications to the lake area completed and accepted. 3. Existing facilities have been removed or accepted by the City with a maintenance agreement. 4. The entire area is clear of litter. Grass and/or weeds are mowed and no erosion problems are evident. 5. A maintenance agreement shall be required to be signed by the City and the Owner/Developer that will require that the Owner/Developer to maintain the property for a period of one year in good condition. At the end of one year the City will again review the property to make sure that Items l through 4 have been met and at that time the City may assume ownership. H. PROCEDURE FOR NOTIFYING PUBLIC OF INTENT FOR LAKE AREAS When a preliminary plat is submitted for an area containing a playa lake, it will then be determined if the lake will be a stormwater detention basin or a public park. (Private parks, where the Owner/Developer maintains the property, are also an option.) The Owner/Developer will be required to place signs on -site stating that the lake area will be a stormwater detention area or a city park. The signs would be required to be posted prior to Phase I of the development as a requirement of the proposed final plat. The size, location, and number of signs shall be determined on a case -by -case basis. A note will be required on the face of any proposed final plat that the lake will be a City - owned or a privately owned Stormwater Detention Basin, a City Park, or a privately owned park.