Management of nitrogen loading into the watershed is a feasible proposition even with the likely further urban expansion on the northern shore of the Lake. The consequences of future nitrogen loadings resulting from population growth on the north shore of Lake Pontchartrain can be compensated for by rather rudimentary sewerage treatment of existing non-point sources, from treatment or diversion of pumped urban runoff, and by sealing the leakage of water passing through the Bonnet Carre Spillway.