Water Pumps & Treatment News

Water Treatment: Arsenic in Well Water

Arsenic is a chemical element with the symbol “As.” It is found naturally in rocks in the Earth’s crust. Arsenic is recognized as a poison and is a cancer causing substance or carcinogen. It can occur within organic compounds when combined with hydrogen and carbon, and within inorganic compounds when combined with sulphur, chlorine, or oxygen.

In water, arsenic has no smell or taste and can only be detected through a chemical test. The ambient concentration of arsenic in surface and groundwater in Canada is very low, usually ranging from 0.001 to 0.002 milligrams per litre. Concentrations in groundwater are often higher than those measured in surface waters. Some creeks that are recharged by groundwater may also have high levels of arsenic. The Canadian drinking water guideline for arsenic sets a maximum acceptable concentration of 0.010 mg/L.

If your well has arsenic levels that exceed the maximum acceptable concentration level, EDS Pumps can help you determine which is the best water treatment system for your home.

Maintaining Your Well: Well Logs

Owners of water wells should know that one of the most important components of their household water well system is the well log. A well log is a document containing vital information on the construction of the well, well locations, and the ground surrounding it. Contractors constructing a well must maintain daily logs, containing the prescribed information, and must also complete a report in accordance with regulations, submitting a copy of the report in accordance with the regulations to the comptroller, well owner, and if requested by the regional water manager, engineer, or drinking water officer. Well owners should have a copy, so that they can file it away.

Having quick access to and an understanding of the well log can be crucial at times. Well logs differ from province to province, but most tend to contain the same basic information: well tag information followed by areas that provide the owner water; location, construction, and contractor details; and well testing information of geological formations encountered by the contractor. Most well logs will also have an area titled “General Remarks,” where the contractor can provide additional notes.

Ask an Expert About pH Control

pH indicates the alkaline or acidic intensity of any given water system. There are two important things to keep in mind when considering pH:

  1. It is an intensity measure, not a quantity measure. A thermometer will tell how cold a room is but not how much warm air is necessary to heat it.
  2. It is an exponential function. pH 10 is ten times as alkaline as pH 9 and one hundred times as alkaline as pH 8. Similarly, pH 2 is one hundred times as acidic as pH 4 and one thousand times as acidic as pH 5.

Neutralizers are a good choice for your water system if you have water that has a low or high pH (6.5-8.5). Low pH is visible as blue/green stains on fixtures, and is extremely corrosive to pipes and metal fixtures. Low pH can also interfere with the effectiveness of other water filtration, such as iron filters. By use of a media bed of corosex/calcite or soda ash, you can eliminate these problems by neutralizing your water.

For more information, please contact EDS Pumps at 604-534-1115 to speak to one of our water treatment specialists.