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While pea gravel makes a fairly good impact attenuating playground safety surfacing, it clearly is not wheelchair accessible and will not meet the ADA requirements for accessibility, as set forth in the ASTM F-1951 accessibility standard. As a NPSI Playground Safety Inspector with 22 years experience it is disappointing seeing one media firestorm throwing us back into the dark ages of playground safety. Engineered wood fiber has been proven to be the preferred surfacing system throughout North America for its safety, accessibility, durability, low maintenance and low cost. The claim of spontaneous combustion is clearly ridiculous to anyone who has taken Biology 101. Decomposition is the result of bacterial action breaking down the wood fiber material and is self-regulating; if it gets too hot, the bacteria are killed, stopping decomposition. Some other agent had to contribute to starting the fire. Gary Max, President SiteLines park and Playground Products Everett, Wash.
While pea gravel makes a fairly good impact attenuating playground safety surfacing, it clearly is not wheelchair accessible and will not meet the ADA requirements for accessibility, as set forth in the ASTM F-1951 accessibility standard.
As a NPSI Playground Safety Inspector with 22 years experience it is disappointing seeing one media firestorm throwing us back into the dark ages of playground safety.
Engineered wood fiber has been proven to be the preferred surfacing system throughout North America for its safety, accessibility, durability, low maintenance and low cost.
The claim of spontaneous combustion is clearly ridiculous to anyone who has taken Biology 101. Decomposition is the result of bacterial action breaking down the wood fiber material and is self-regulating; if it gets too hot, the bacteria are killed, stopping decomposition. Some other agent had to contribute to starting the fire.
Gary Max, President SiteLines park and Playground Products Everett, Wash.
Dave Graham, ASLA wrote: In the August issue you show on p. 145 a picture at the Univ. of Hawai?EUR??,,????'?????< Ed?EUR??,,????'?????<We contacted Dave to ask for those images. It?EUR??,,????'?????< Dave Graham, ASLA The D. W. G. Co. Owner & Landscape Architect Janesville, Wis. Nancy Stremple wrote: Hi, I receive your newsletter and love it. How do I go about submitting information such as available grants, information and requests for nominations to our National Advisory Council? Is there a contact person with which I can share information? Thanks. Nancy Stremple US Forest Service Executive Staff to National Urban and Community Forestry Advisory Council, National Urban Forestry Specialist/Landscape Architect Washington, D.C. Ed?EUR??,,????'?????<We contacted Nancy to let her know where to send information. Any information or inquires can be directed to Steve Kelly at skelly@landscapearchitect.com
In the August issue you show on p. 145 a picture at the Univ. of Hawai?EUR??,,????'?????<
Ed?EUR??,,????'?????<We contacted Dave to ask for those images. It?EUR??,,????'?????< Dave Graham, ASLA The D. W. G. Co. Owner & Landscape Architect Janesville, Wis. Nancy Stremple wrote: Hi, I receive your newsletter and love it. How do I go about submitting information such as available grants, information and requests for nominations to our National Advisory Council? Is there a contact person with which I can share information? Thanks. Nancy Stremple US Forest Service Executive Staff to National Urban and Community Forestry Advisory Council, National Urban Forestry Specialist/Landscape Architect Washington, D.C. Ed?EUR??,,????'?????<We contacted Nancy to let her know where to send information. Any information or inquires can be directed to Steve Kelly at skelly@landscapearchitect.com
Dave Graham, ASLA The D. W. G. Co. Owner & Landscape Architect Janesville, Wis.
Hi, I receive your newsletter and love it. How do I go about submitting information such as available grants, information and requests for nominations to our National Advisory Council? Is there a contact person with which I can share information? Thanks.
Nancy Stremple US Forest Service Executive Staff to National Urban and Community Forestry Advisory Council, National Urban Forestry Specialist/Landscape Architect Washington, D.C.
Ed?EUR??,,????'?????<We contacted Nancy to let her know where to send information. Any information or inquires can be directed to Steve Kelly at skelly@landscapearchitect.com
At Alderman Engineering, we have designed lakes, water bodies, and water features for over 22 years. One of our most important accomplishments is to achieve very good water quality and decrease algal growths with such systems as biological filtration, aeration and ozone. We would be interested in being contacted if there is some interest in finding solutions to these algae problems.
Jeff Alderman Alderman Engineering Owner, Design Engineer Cottonwood, Calif.
I?EUR??,,????'?????<
I moved to Florida in 1999 and have seen irrigation systems all over the state. Most of the problems we have due to water shortages and overtaxed water delivery systems are because of the inability of most irrigation designers and contractors to design and install efficient irrigation systems. With little to no regulation in the design and installation of irrigation systems, cost is the major deciding factor in choosing the contractor and/or the irrigation system. The reason is for many areas in Florida the cost of water is not a deciding factor in determining the choice of the system. Many systems work off wells, pumps and/or very low cost reclaimed water and thus the amount of water required for the system is a nonfactor in the choice of purchasing a system.
Manufactures have made great strides to provide irrigation control systems, but to maximize water savings the system must be efficiently designed and installed to provide the correct coverage and water distribution. The majority of the systems I have seen in Florida do not meet the minimum standards of efficiency as put forth by the IA.
Without increasing the efficiency of the systems any change in controller technology (e.g., ET-based systems) will only save a small percentage of the water because the run time will have to be increased to compensate for the poor uniformity of distribution of the system.
For example, if you have one acre of warm season turf grass in Fort Myers, Fla., a system with 55 percent efficiency (an IA rating of fair) would have a water usage of 1,408,900 GPY. A system with 65 percent efficiency (an IA good rating) would use 1,192,146 GPY. The 10 percent increase in efficiency would save 216,754 GPY. An annual average water usage for a family of four is 116,800 GPY. A system with 75 percent efficiency (rating of very good) uses 1,033,193 GPY. The savings from 55 percent to 75 percent would be a total of 375,707 GPY or enough water for a family of 4 for 3.2 years. And this is on only one irrigated acre of turf.
Russel Prophit President Precise Irrigation Design and Consulting, Inc. Winter Haven, Fla.
Raleigh, North Carolina
Francisco Uviña, University of New Mexico
Hardscape Oasis in Litchfield Park
Ash Nochian, Ph.D. Landscape Architect
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