08-24-2015 Council Packet - Laserfiche WebLink

Home Search

Monitoring Vegetation Performance Standards The mitigation area will be maintained to either meet or exceed the following vegetation performance standards: Year 1: In the first year following construction/seeding, it is expected that some pioneer species will be present which may not be native. These species will be controlled to reduce spreading. Of the seed mix used, it is expected that 3-5 native species will be present. Native cover will comprise 30% - 50% of the area. Some denuded areas are expected. Year 3: By year 3, vegetative cover is expected to be such that little denuded area remains (< 10%). It is expected that 5-7 species of native plants will be present and native cover will comprise 50% - 75% of the area. Year 5: By year 5, the vegetation should be fully established and no denuded areas should be present. Seven or more species of native plants should be present and native cover will comprise a minimum of 75% of the area. Wetland and Buffer Maintenance Plan The Minnesota Wetland Conservation Act requires the property owner to monitor the establishment of a created wetland. The developer of the property is responsible for monitoring the wetland annually for a five year period or until such time as the wetland replacement is deemed acceptable by the LGU (minimum three years). The developer will provide information to the LGU once a year. This information will include a report identifying the dominant plant species growing in the area and photographs taken from predetermined reference points. • Description of the project location, size, plus current and desired wetland type (goal). Wetlands will be described using the Cowardin classification system. • Comparison of as -built with planned wetland creation. • Water level elevation during the growing season. • List of the dominant vegetation in the wetland, including common names of the vegetation exceeding 20% coverage and an estimate of coverage. • Color photographs of the project area taken anytime during the period June through August, referenced to the fixed photo -reference points. Year 1 • Mow wetland and buffer to 6 inches every 30 days after planting until September 30. Mowing should only occur if the equipment will not cause soil disturbance. Most natives will not grow taller than about 6 inches the first year. • Weed Control — mowing should be conducted as weeds reach 12 inches in height and prior to weeds developing seeds. Spot treatment of invasive species should occur as needed throughout the first year of growth. 5