Incomplete NitrificationA condition in which not all ammonia is converted to nitrate (some of the ammonia remains as ammonia and some of the ammonia undergoes partial conversion yielding concentrations of nitrite). Typically, incomplete nitrification results in high levels of ammonia in the wastewater effluent.
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IncorporationMixing of materials found on or spread upon the soil surface into the soil volume via the mechanical manipulation of the soil.
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InfluentWastewater or other liquid - raw (untreated) or partially treated - flowing INTO a reservoir, basin, treatment process, or treatment plant
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Information Collection RuleInformation Collection Rule (ICR)
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InorganicDescribes material that is of mineral origin. Specifically, describes chemical compounds that do not contain carbon and hydrogen.
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Inorganic MaterialMaterial such as sand, salt, iron, calcium and other mineral materials that are only slightly affected by the action of organisms in wastewater treatment. Inorganic matter is comprised of chemical substances of mineral origin; whereas organic matter is comprised of chemical substances that are usually of animal or plant origin.
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Inorganic MatterParticles produced by natural weathering of minerals. Examples include sand, salt, iron, calcium salts and other mineral materials.
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Inorganic WasteWaste material such as sand, salt, iron, calcium and other mineral materials that are only slightly affected by the action of organisms in wastewater treatment. Inorganic wastes are chemical substances of mineral origin; whereas organic wastes are chemical substances usually of animal or plant origin.
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Interim Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule – (IESWTR)
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Intermittent TCR M/R ViolatorsAny PWS with 3 or less monthly or one quarterly monitoring violation during a 12 month period.
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