(A) General. Fertilizing, seeding and mulching of any and all areas disturbed during construction will follow within ten working days of the installation of each pipe run (being from manhole to manhole or 300 feet of water line). All plantings shall be maintained by the installer for a period of one year after the completion of the work.
(B) Materials.
(1) Fertilizer. Lawn fertilizer shall be a complete fertilizer with components derived from organic sources and shall contain the following percentages by weight:
(a) Type 10-10-10: 10%;
(b) Nitrogen (ureaform): 10%; and
(c) Phosphoric acid: 10%.
(2) Potash. One quarter of the nitrogen shall be in the form of nitrates, one quarter in the form of ammonia salts and one half in the form of natural organic nitrogen. Available phosphoric acid to be free from superphosphate, bone or tankage. Potash shall be sulphate or potash. Elements shall conform to the standards of the Association of Official Chemists.
(3) Storage. Commercial fertilizer shall be stored in weatherproof storage areas and in a manner that effectiveness will not be impaired.
(4) Ground limestone. At least 50% shall pass a No. 200 U.S.S. mesh sieve. At least 90% shall pass a No. 100 U.S.S. mesh sieve. One hundred percent shall pass a No. 10 U.S.S. mesh sieve. Total carbonates shall not be less than 80% of 44.8% calcium oxide equivalent; for purposes of calculation, total carbonates shall be considered as calcium carbonate.
(5) Grass seed. Grass seed shall be new crop mechanically mixed seeds in the following seed mixture proportions:
% Mixture | Seed Variety | % Purity | % Germination |
80 | Kentucky 31 | 98 | 97 |
20 | Kentucky Bluegrass | 98 | 85 |
(C) Seed bed preparation. The seed bed shall be prepared by pulverizing the soil to a depth of three inches. Good surface drainage must be provided, allowances for settlement made and ground elevations adjusted accordingly. Visible ponding will not be allowed. All stones, roots, sticks, rubbish and other objectionable material shall be removed.
(D) Soil improvements. Soil additives shall be applied incorporated in an approved manner into the topsoil at the following rates:
(1) Fertilizer: 30 pounds per 1,000 square feet of 10-10-10 fertilizer;
(2) Lime: 100 pounds per 100 square feet; and
(3) Superphosphate (0.20.0): 12 pounds per 1,000 square feet.
(E) Seeding. The seed bed must be in good, friable condition and has not become muddy or hard at the time seeding is to be performed. Seed shall be applied at the rate of eight pounds per 1,000 square feet and raked or tilled into the topsoil with the resulting furroughs running across the natural slope of the ground.
(F) Mulching.
(1) Dried straw shall be uniformly spread (approximately one-fourth of the ground should remain visible to avoid smothering seedlings) over the area at the rate of 90 pounds per 1,000 square feet. The straw shall be sprayed with liquid asphalt to bond it together and anchor it in place.
(2) Liquid asphalt (thinned with kerosene) used during freezing weather shall be either rapid or medium curing, applied at a rate of 200 gallons per ton of straw (approximately nine gallons per 1,000 square feet).
(3) Emulsified asphalt (thinned with water) used when temperatures are less severe shall be rapid curing only, applied at a rate of 150 gallons per ton of straw (approximately seven gallons per 1,000 square feet).
(G) Maintenance. Maintenance shall consist of watering, weed and pest control (within established lawns), fertilization, erosion repair, reseeding and all else necessary to establish a vigorous health and uniform stand of grass. All areas and spots which do not show a uniform stand of grass, for any reason, shall be treated repeatedly until a uniform stand is attained.
(Ord. passed 6-21-2011)