SportsTurf

June 2012

SportsTurf provides current, practical and technical content on issues relevant to sports turf managers, including facilities managers. Most readers are athletic field managers from the professional level through parks and recreation, universities.

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22,500 sq. ft., a 73% reduction of turf area. The areas of non-es- sential turf were sprayed with three separate applications of glysophate. The remaining turf was left in place and subse- quently repaired of damages from the heavy equipment and other vehicles. The repairs and restoration of the turf included filling in the low areas with sand, removing tree roots, lowering high spots, aeration and re-seeding with a fescue/rye mix with a quarter inch of topdressing. There were 28 existing trees in the old turf that were removed because of disease, surface roots and the need to start new. The new irrigation system is designed for the existing re- claimed water service, a cost saving-conservation retrofit in- stalled in 2007. Though existing white PVC was left in place as part of the new design, all new piping installs were specified at SCH 40 and purple. All automatic valves, boxes, quick couplers and sprinklers were also marked with purple tagging. A separate potable water line was also installed with quick couplers for other functions in the park. controller installed in 1990 with current programming updates. The Hunter I-25 and PGP rotor type sprinkler heads are used with Superior 950 – DWPRS brass globe valves. The turf area requires six individual valves for proper zoning and efficiency. The park showcases over 65 individual trees with 38 separate species with emphasis in adaptability to the local area and for homeowner and other property installations. All trees are irri- gated with the subsurface Hunter Root Watering System- RZWS-36-50-CV. The majority of the trees were 24-inch box sizes with the remaining trees being of the 15-gallon pot size. Most trees were fitted with four individual subsurface "water tubes" while the desert type lower water use trees were fitted with two water tubes. The tree zones require seven valves with trees be grouped for similar water requirements. The irrigation system uses the existing Motorola IRRInet WATER USE A water conservation goal of considerable water savings was achieved with the 2009 park renovation. The potable water design of the old park turf encompassed 17 valves at 555 GPM with an approximate water use cost of $4,500.00/year. The recycled water retrofit was an immediate dollar savings of 25-30% for usage with District staff and the City of Montclair staff providing for the installation of the plumbing materials and connections. The new park turf design was measured at 68% DU, uses six valves at a total 178 GPM with at an approximate cost of $1,000/year based on soil moisture observations, weekly and sea- sonal run time adjustments. The tree irrigation system is designed at approximately 132 gpm with an approximate use of 19 gpm per zone. Based on soil moisture observations, growth rate, seasonal run time adjustments, the tree irrigation costs are approximately $125/year. The paths in the park are built of decomposed granite with an added binder for stability and hardness, with a barrier cloth sepa- rating the native soil and DG. All pathways are curbed and the www.stma.org SportsTurf 27

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