Even the government has to get a government permit to manage storm water.
In this case, local governments in Charlotte-Mecklenburg have permits to discharge untreated storm water runoff into creeks, rivers and lakes. These permits are part of the National Pollutant Discharge Elimination System (NPDES.) The permitting program was established in 1972 under the federal Clean Water Act.
Because it has more than 100,000 residents, the City of Charlotte had to obtain a Phase I NPDES permit to manage storm water anywhere in the city. Charlotte's first Phase I permit was received in 1993.
Phase II of NPDES applied the same laws to smaller jurisdictions. In 2005, Mecklenburg County and the six Towns were granted a joint NPDES Phase II Permit to manage storm water outside of the Charlotte City limits.
NPDES Phase I - City of Charlotte
Phase II NPDES Permit (Mecklenburg County and the six Towns)
County/Towns Phase II Storm Water Management Plan