Technical Help

	Radon
	Citizens Guide- this is a direct link to an on line document on EPA's web site
	Consumer's Guide to Radon Reduction- this is a direct link to an on line document on EPA's web site
	Home Buyer's and Seller's Guide to Radon- this is a direct link to an on line document on EPA's web site
	Radon Water-What is a safe level?- Question and answer format review of present recommendations
	Radon in Water- a brief description of how radon gets into water, how it affects air radon, how to test for it and how to remove radon from water.
	Radon Air Mitigation Basics- a brief description of how radon gets into homes, how to remove it, and safe system essentials
	Testing and Standards
	Testing Recommendations - what to test for in potable water Bacteria Test- What do They Mean? - interpretation of bacteria tests EPA Drinking Water Standards - MCL's for primary and secondary contaminants for water - click here for PDF version from the EPA web site
	Maximum Exposure Guidelines (MEG) - Maine Bureau of Health - Maximum Exposure Guidelines for Drinking Water
	Arsenic and Gross Alpha Table of Test Results-results from system we have installed for arsenic and gross alpha Sanitizing a Faucet - how to sanitize a faucet before taking a bacteria sample.
	Wells / Pumps-
	What You Should Know About Groundwater and Aquifers -This is an Adobe Acrobat file from Maine's DEP Safe Home Program
	Home Well Water Quality -This is an Adobe Acrobat file from Maine's DEP Safe Home Program
	Well Sanitizing -an overview of why one would chlorinate a well and what to expect
	Well Chlorinating - how to shock treat your well after an unsatisfactory bacteria test
	Well drilling - this is an area put together by one of our local well drillers. They are promoting their services as well as giving useful information about wells and drilling.
	How much water do I need? - this is an area put together by one of our local well drillers. They are promoting their services as well as giving useful information about wells and drilling.
	Low Pressure/ Low Flow - Which is it? - We often get asked "Can you fix my low water pressure?" The answer is always yes, however, the solution may require...
	Hydrofracturing- a process used to develop a low yield well into a high yield well. This is a link to a fact sheet produced by the Province of Newfoundland and Labrador
	Well Types- The three general types of wells are discussed. This a direct link to the Maine Drinking Water Site.
	Water Problems and Treatments-
	System Designer - a quick question and answer survey that will lead you to possible treatment systems for your particular problem.
	Treatment Table - summary of problems and treatment techniques
	Bacteria Control - an overview of disinfection systems and how they operate
	Hardness - what it is, characteristics and how to treat it
	Iron /Orange & Brown Staining - types of iron and details on different types of iron treatment techniques
	Manganese/Black & Brown Staining - types of manganese and details on different types of manganese treatment techniques
	pH/ Blue-green Staining - causes of low pH and blue-green staining along with solutions to the problem.
	Hydrogen Sulfide/ Egg Order - causes and treatment
	Arsenic, Lead, Nitrates/Nitrites & Radioactive Nuclides - description and treatment
	Ultrafiltration - a solution for colloidal iron
	Salt Water - where does it come from and how to treat it
	Equipment Operation Principals
	Back-washing Filter Operation- explanation of filter operation with diagrams
	Softener- explanation of softener operation with diagrams
	What is Reverse Osmosis?- reprint from WQA web site with link to sit included
	Miscellaneous
	Sodium and Softening- explains how much sodium is add to softened water
	Potassium and Softening- potassium is a salt substitute that can be used for those on low sodium diets
	What to Ask When Buying an RO. - This is a guide for purchasing POU reverse osmosis units.
	How to Buy A Whole House RO - written by one of the owners of Air & Water Quality
	NIEHS article- Arsenic health effects study - reprint and link to Center for Environmental Health Sciences at University of California, Berkeley
	The Water Cycle and Wells- a brief introduction to the hydrological cycle and wells
	Softener Waste May Benefit Septic Systems - Reprint from Research Reports: Septic Tank/Water Softener by the University of Wisconsin and The Geological and Natural History University of Wisconsin/Extension.
	Softeners and their effect on septic systems - this is a link to a WQA technical paper. It is simple short and thorough.
	Electrical operation costs - this page will not only show you the operating costs of two of our systems it will show you how to calculate the cost of any appliance in your home.