The existing profile consists of uncontrolled fill overlying natural soils. We performed infiltration testing on the natural soils, but unfortunately they lie below seasonal high groundwater elevations. Our reccomendation was be to overexcavate the uncontrolled fill and "build" a basin...
Two Questions..
1) Is there a reccomended rate or range of rates of infiltration when using structural fill?
2) Are allowable/acceptable infiltration rates for recharge governed by local ordinances or the BMP Manual? Site is in PA
Thanks!
