water-bearing geological formation that will yield water to a well or spring; aquifers can be classified as confined or unconfined.

surface area that drains into a surface water system.

Stormwater BMPs are control measures taken to mitigate changes to both quantity and quality of urban runoff caused through changes to land use. Generally BMPs focus on water quality problems caused by increased impervious surfaces from land development. BMPs are designed to reduce stormwater volume, peak flows, and/or nonpoint source pollution thro [..]

used as insecticide this complex compound is classed as a PBT due to its ability to persist even after long-distance transport

any element, substance, compound, mixture, or agent, other than a hazardous substance, which, after release from a facility and upon exposure of, ingestion, inhalation, or assimilation into any organism, wither directly from the environment or indirectly by ingestion, inhalation, or assimilation into any organism, either directly from the environme [..]

Combined sewer systems are sewers that are designed to collect rainwater runoff, domestic sewage, and industrial wastewater in the same pipe. Most of the time, combined sewer systems transport all of their wastewater to a sewage treatment plant, where it is treated and then discharged to a water body. During periods of heavy rainfall or snowmelt, h [..]

enrichment of natural waters with inorganic material, especially nitrogen and phosphorus, such that they support excessive growth of plants/algae.

water beneath the Earth’s surface at varying depths in reservoirs called aquifers.

any waste material that is potentially dangerous, including explosives, radioactive materials, and chemicals.

Metals exist naturally in the environment in low to moderate concentrations and often bound in rocks or in soil or dissolved in surface or groundwater. Metals can be found as part of the natural environment but often sources of metals releasing to the environment in high concentrations create environmental risk. Concentrated metals not in equilibri [..]