This document discusses land disposal of sewage and the standards for wastewater effluents that are discharged onto land for irrigation. It outlines the Bureau of Indian Standards quality standards that set limits on pollutants in wastewater used for irrigation. Land disposal is appropriate when natural waterways are not nearby, irrigation water is scarce, or rainfall is low. The document describes different techniques for irrigating crops with sewage and measures to prevent "sewage sickness" of the land from overuse.