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07/25/2001 Env Bd Packet
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07/25/2001 Env Bd Packet
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7/31/2014 4:27:23 PM
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Environmental Board
Env Bd Document Type
Env Bd Packet
Meeting Date
07/25/2001
Env Bd Meeting Type
Regular
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Construction, Monitoring, Operation and Maintenance Plan For <br />Infiltration Basins in the Spirit Hills Development, Lino Lakes. <br />The overall objective for this maintenance plan is to ensure the longevity of the Infiltration <br />basins designed as part of the stormwater management plan. <br />Introduction <br />Infiltration basins are designed to retain and infiltrate the stormwater runoff generated for a <br />given design rainfall event. The success of an infiltration practice is dependent upon a <br />number of things: naturally permeable soils and subsurface material, sufficient depth to the <br />water table and /or a restricting layer such as bedrock or a hardpan layer, proper construction, <br />proper operation and maintenance and pretreatment of stormwater to prevent clogging of the <br />soils. In addition, a review of the soil borings of this development shows that there is sufficient <br />• depth to the water table to prevent a water table mound from forming underneath the <br />infiltration ponds and affecting roads and other infrastructure. As a result, the following issues <br />are addressed in this Operation & Maintenance Plan to ensure the short and the long -term <br />performance of the infiltration ponds: <br />• Ensure Proper Construction of Infiltration Basins /Ponds <br />• Minimize Sediment Loading to the Infiltration Basins /Ponds <br />• Develop a Monitoring Plan <br />• Short - Term Maintenance Requirements <br />• Long - Term Maintenance Requirements <br />Construction of Infiltration Basins /Ponds <br />Proper construction is extremely important in ensuring the successful operation of an <br />infiltration practice. The following recommendations regarding the excavation, timing of <br />construction, equipment requirements, and landscaping plan will be incorporated in the final <br />plans and specifications. <br />Page 1 <br />
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