This site is a collaborative effort between the New Jersey Department of Agriculture-State Soil Conservation Committee and NJ’s fifteen Soil Conservation Districts to capture and preserve land use change data that are submitted to Districts on erosion and sediment control site plans. This effort is continuing and has been on-going since 1986 and has culminated with this web-based hydrologic modeling data warehouse. Data contained in this warehouse consist of hydrologic and hydraulic design data used to develop stormwater management plans which include at least one stormwater basin. Drainage area, Curve Numbers, Tc and imperviousness along with Anderson Landuse Classification codes describing post-development land use.