1. GENERAL MAINTENANCE 1.1 Maintain the area free of weeds and remove all undesirable woody vegetation. 1.2 Hand-weed plant tiers regularly to ensure a neat and tidy appearance. 1.3 Remove invasive weeds from the water’s edge to preserve the pond's ecological balance. 1.4 Ensure drains remain free of debris to maintain proper water flow. 1.5 Edge trails and clear pathways of debris to provide safe and unobstructed access. 1.6 Maintain turf areas by regular mowing to ensure a clean and professional look. 1.7 Remove debris and trash from the pond to maintain water quality and appearance. 1.8 Keep the inlet spillway structure and trash rack in the pond free of debris at all times. Inspect sediment levels in the forebay and deep pools annually and remove debris and sediment when levels reach half of the original depth (typically every 5–10 years). The last inspection was completed in 2019. 1.9 Use only aquatic formulations of water-safe herbicides to treat weeds and invasive species around the pond. 1.10 Test the gate valve annually to ensure proper functionality and provide a follow-up report to the Museum. 1.11 Respond to requests from the Museum Representative ahead of severe weather events to open the gate valve or set up a pump and motor to lower the pond water level during major storms. Provide contact information for the individual responsible for this service. 2. IRRIGATION CONTROL 2.1 The Vendor shall be responsible for directing irrigation water away from visitors, buildings, and impervious surfaces. 2.2 The Vendor shall perform timer setup, adjustments, and test cycles a minimum of six times per year. 2.3 The Vendor shall ensure that spray heads provide adequate coverage and dispense the proper amount of water. 2.4 Efforts should be made to avoid spraying hardscapes. 2.5 The Vendor shall routinely check for leaks in the irrigation system. 2.6 Any irrigation leaks, head replacements, or watering issues must be reported to the Onsite NCMA Representative and Contract Administrator. 2.7 All irrigation activities shall occur between 12:00 midnight and 7:00 a.m. using time clocks. 2.8 During lawn reseeding, watering may be conducted after 10:00 a.m., Monday through Sunday. 3. UPPER TERRACE 3.1 The plants in this area are spring, summer, and fall blooming. They like medium moisture but will tolerate dry soils. Allow any stalk heads and seeds to remain in winter to provide visual interest and food for wildlife. The Upper Terrace receives and absorbs most of the Storm water, so it will always have moister soils than the Lower Terrace.
