Billerica Contaminants
This contaminant, such as viruses and bacteria, may come from sewage treatment plants, septic systems, agricultural livestock operations, or wildlife.
What are Microbial Contaminants?
A layer of permeable rock that transmits water freely.
What is an Aquifer?
When water changes from a liquid to a gas.
What is Evaporation?
This is means life.
What is Bio?
Isolines connect points of this value.
What is Equal Value?
This contaminant, such as salts and metals, can be naturally occurring, or may resultfrom urban stormwater runoff, industrial or domestic wastewater discharges, oil and gas production, mining or farming.
What are inorganic contaminants?
A layer of impermeable rock that stops that transmission of water throug the soil.
What is an Aquitard?
When solid water (ice) changes directly into water vapor (gas) without becoming liquid first.
What is Sublimation?
A single source of contamination is called this?
What is a Point Source?
Isolines cannot do this.
What is Connect.
These may come from a variety of sources, such as agriculture, urban stormwater runoff, and septic systems.
What are Pesticides and Herbicides?
Materials that can flow through the soil are considered this.
What is Permeable?
When water vapor (gas) cools down and turns into liquid water.
What is Condensation?
If there are a number of contamination sources, the contamination is called this.
What is a non-point source?
Isolines cannot come to this. They must go off the map or make a closed loop.
What is a Dead End?
These include synthetic and volatile organic chemicals, which are by-products of industrial processes and petroleum production, and may also come from gas stations and septic systems.
What are Organic Chemical Contaminants?
Materials that cannot soak or flow through soil are considered this.
What is Impermeable?
When water flows across Earth's surface into rivers and oceans.
What is runoff?
The part of the aquifer that becomes contaminated is called this.
What is a Plume?
Isolines cannot eat with this type of "utensil".
What is a "Fork"?
These can be naturally occurring or may be the result of oil and gase production and mining activities.
What are Radiactive Contaminants?
This depth defines the upper boundary of saturated ground.
What is the Water Table?
The movement of water through soil or rock layers, replenishing groundwater.
What is percolation?
This means land.
What is Geo?
Adjacent isolines must be either this many intervals apart or equal in value.
What is "One"?