TEST RESTORED FINAL SOIL CONDITIONS : ENSURE FOLLOWING SOIL RESTORATION CRITERIA ARE MET:
1.ORGANIC MATTER ( REQUIRED). Achive appr. org matter for plant growth, water sotorage and infiltration , amend soils with mature, stable compost such that at minimum the top 12 inches of soil Contain at least 3% organic matter or organic mater levels and pedths that are comparables to the sites reference soils and appropiate for vegetation and rpogram needs TEST METHODS FOR DETERMING SOIL ORGANIC MATTER INCLUDE ASTM D2974 Test Methods fo moiusture , ash,, and organic matter of peat and other oganic soils . 2. COMPACTATION (field test or undisturbed core sample only ) ensure bulk densities with 100% of the root zone de not exceed the max values given in fig 7.3a or figure 7.3b in the doc guidance sites v2 ref guide or INFILTRATION ( field test only ) .Ahieve infiltration rates inches or cms /hour or saturated hydaulic conductivity mms/second comparable to the sites reference soils and appropiate for vegetation and program needs 3. SOIL CHEMICAL CHARACTERISTICS Restore appropiate soil chemical characters for plant growth . The mimum basic profile .:PH,Cation exchange capacity CEC, Extractable phosphorus, potassium, calcium, magnesium, sodium, ( in semi arid and arid climates) the PH cation exchange capacity and nutrient profiles should be comparable to the original undisturbed soil or the sites reference soil and approp for vegetation and program needs. OR SOIL BIOLOGICAL FUNCTIONEnsure that soil function restored in remediated soils, soil data assays are complex and vary regionally, making potentially minirezabel nitrogen serve as a prox assessment or biological activity.
EXEMPT MEETINGS THE SOIL RESTORATION CRITERIA. athetics fields, green roofs, raingardens, vertical green walls, trees in paving, bioswalws, green vehicle easements, steep slopes, food gardens, constructed wetlands
ReQUIRED TEST PER PROJECT AREA , MINIMUM NUMBER OF SOIL TESTED REQUIRED
-Limit dustruebace , stockpiling and reusing, amending soils , organic matter and mechanically correcting compactation if needed, importing a topsoil. -selecting a soil restoration strategy, adding mature , stable compost, sleect organic mtls for on site amendments or for blending of imported soils from sources that are renewable with 50 year cycle, . GUIDELINES FOR COMPOST INCLUDE .: hAS A ACRBON TO NOTRIGEN RATIO (C:N) BELOW 25:1 , DOES NOT EXCEED POLLUTANT CONC LIMITS EPA 40 CFR part 503 biosolides rule , before placing stockpiled or pimorted toposoils consider scarifying any areas of contrsuction compacted subsoil
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