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Water Tests for Herbicide Contamination
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InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.
Here we explain just what drinking water contamination tests should you order if there is a risk of herbice or "weed killer" plant control chemical spills or over-use near a property well or water suppl. We discuss the general classes of water contaminants covered in a
water test for herbicides, including 2,4,-D and 2,4,5-TP tests.
This website describes the types of water testing available, outlines common water test fees,
describes the details of what parameters are included in various water test options, and gives
advice to assist you in deciding what tests to order.
Readers should also see our longer article Water Quality Testing, and advice for home buyers
and building owners: water contaminants, water test procedures, well shock procedures, preventing drinking water
contamination, and Cheating on water tests in that document.
Green links show where you are. © Copyright 2013 InspectAPedia.com, All Rights Reserved. Author Daniel Friedman.
Herbicide Contamination- water test parameters
When site history or visual observations (you're buying a home that was built on a farm or in an apple orchard) suggest
that there may be extra risk of herbicidal contamination of drinking water these tests may be appropriate.
Be sure to review actual parameters with your home inspector or laboratory:
parameters and costs vary.
Watch out: to do proper and adequate research when testing for herbicidal chemicals in drinking water.
As with our warning about water tests for pesticides, because a wide variety of chemicals may have been used to control weeds or other plants at a propety, you should review the history of property use and (if lucky) look for herbicide chemical containers (in a garage, garden shed, basement, crawl area, etc) for clues about which chemical tests may be most useful for your situation. Don't assume that because a very specirfic water test did not find that contaminant, that no other contaminants may be present.
At an inspection where we observed an abandoned termite control business trailer we warned the buyer to test for pesticides. But later research on the usage history of the site revealed that there had been a metal plating operation alongside the property's stream.
Testing by the state department of environmental conservation found significant levels of cadmium contamination. That contaminant may not have been found nor even looked-for had the property history not been researched.
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Water Test Parameters for Contamination by Herbicides |
Water Analysis |
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2,4,-D |
2,4,5-TP |
2,4,5-T |
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Frequently Asked Questions (FAQs)
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Technical Reviewers & References
Related Topics, found near the top of this page suggest articles closely related to this one.
Water Purity & Water Purification References
- 1-Bromo-3-chloro-5,5-dimethylhydantoin (C5H6BrClN2O2) is produced world-wide and is also used in cleaners and bathroom disinfectants and deodorizers. Here is an example MSDS for this product, provided by Leisure Time
- "Bacteria in Drinking Water" - "Chlorine," Karen Mancl, water quality specialist, Agricultural Engineering, Ohio State University Extension. Mancl explains factors affecting the effectiveness of chlorine in water as a means to destroy bacteria and other microorganisms. OSU reports as follows:
- Chlorine kills bacteria, including disease-causing organisms and the nuisance organism, iron bacteria. However, low levels of chlorine, normally used to disinfect water, are not an effective treatment for giardia cysts. A chlorine level of over 10 mg/1 must be maintained for at least 30 minutes to kill giardia cysts. -- http://ohioline.osu.edu/b795/index.html is the front page of this bulletin
- "Chemicals and Our Health", Nicholas D. Kristof, New York Times, 16 July 2009, p. 27. This outstanding editorial calls for improvements in public health policy to address phthalates and other environmental contaminants from common chemicals and products in everyday use. - DJ Friedman
- Crystal Clear Supply provides portable ceramic water filter purifiers and portable reverse osmosis water treatment equipment - see http://www.crystalclearsupply.com/category_s/7.htm
- CHLORINE IN DRINKING WATER - Does Chlorine in Drinking Water Harm the Septic Tank? - Septic Tank Cleaning Advice
- CHLORINE IN SEPTIC WASTEWATER - Septic Tank Maintenance: Chlorine in Septic Systems - Septic Tank Maintenance Advice
- Cheating on water tests: Testing Water for Real Estate Transactions - make sure your water test is valid
- Chlorinate or Shock a Well, When, How-to - Procedure for Shocking a Well to (temporarily or maybe longer) "Correct" Bacterial Contamination
- Choices of Water Tests & Fees: A Summary of Types of Water Tests, Degrees of Comprehensive Water Testing, Details of Water Test Parameters
- Correcting Unsatisfactory Water what to do, when to do it, treatment alternatives, equipment, filters, etc.
- Disinfectants in water: www.epa.gov/ogwdw/mdbp/pdf/alter/chapt_2.pdf provides an article on use of disinfectants for water treatment
- Drinking Water Contaminant Levels - Maximum Allowed
- Drinking Water Contamination and Pollution How to Detect, Test, Correct, and Prevent Well Water Contamination - US EPA - Groundwater
- "Drinking Water Safety in Emergencies", University of Minnesota extension, extension.umn.edu/info-u/nutrition/BJ646.html
- Drinking Water testing, contamination, correction - all topics
- Drinking Water Testing Advice for home buyers home owners home inspectors
- Endocrine Disruptor Exchange, Dr. theo Colborn (also see Our Stolen Future). From that website: The Endocrine Disruption Exchange, Inc. is the only organization that focuses primarily on the human health and environmental problems caused by low-dose and/or ambient exposure to chemicals that interfere with development and function, called endocrine disruptors. ... TEDX's work focuses on the endocrine system, which is the exquisitely balanced system of glands and hormones that regulates such vital functions as body growth, response to stress, sexual development and behavior, production and utilization of insulin, rate of metabolism, intelligence and behavior. Hormones are chemicals such as insulin, thyroxin, estrogen, and testosterone that interact with specific target cells. The interactions occur through a number of mechanisms, the easiest of which to conceptualize is through a lock and key arrangement.
- Giardia exposure limits for drinking water: see www.mass.gov/dep/water/drinking/standards/giardia.htm is the current regulatory exposure limit (your minimum target for
sterilization)
- Health Effects of Chemical Contaminants in Drinking Water, US Environmental Protection Agency,
- How to Reduce Lead Contamination in Drinking Water: how to test & correction lead in drinking water
- Hydrogen peroxide: Wikipedia on history of use of hydrogen peroxide: Information on Hydrogen peroxide as a sterilant is in Wikipedia at en.wikipedia.org/wiki/Sterilization_(microbiology) HO2 has been
used for a long time, including by vaporization for sterilizing freeze dryers.
- Hydrogen Peroxide warning: US FDA Warning about drinking hydrogen peroxide: www.truthorfiction.com/rumors/h/hydrogen-peroxide.htm This article cites a 2003 entry in Journal
of Food and Science on using Hy.Perox to sterilize vegetables, referring to E.coli - NOT to Giardia.
- Iodine: "Do Iodine Water Purification Tablets Provide an Effective Barrier against Cryptosporidium parvum?", Starke, Jeffrey A., Bowman, Dwight D., Labare, Michael, Fogarty, Elizabeth A., and others, Military Medicine, 25 October 2001 [possibly a later version of this article appeared in 2005 -DF] http://www.amsus.org/military medicine/milmed.htm
- Interpreting Drinking Water Test Results what the results mean and what to do about them
- Lead Contamination from Water Supply Lines/Entry Mains, Lead Testing & Correcting Contamination from - Lead Pipe Problems/Advice
- Lead Poisoning: Extreme Lead Poisoning Symptoms Suggested by Feb 2006 NY Times Article on Kosovo Roma Camps
- National Primary Drinking Water Regulations- The complete regulations regarding these contaminants available from the Code of Federal Regulations Website -(United States)
- Ohio State University article on the concentration of chlorine necessary to act as an effective disinfectant, and the effects of the water's pH and temperature: See http://ohioline.osu.edu/b795/b795_7.html for details.
- Our Stolen Future: Are We Threatening Our Fertility, Intelligence, and Survival?--A Scientific Detective Story, Theo Colborn, Dianne Dumanoski, John Peter Meyers. Plume-Penguin Publishing, 1997, ISBN 0-452-27414-1., ISBN13: 9780452274143. This book is a seminal work on endocrine disruptors (chemical contaminants having impact at extremely low levels in the environment).
Recommended by Daniel Friedman, this book is a critical update to the landmark Silent Spring by Rachel Carson and discusses the effects of minute trace amounts of chemical contaminants in the environment. The text "Identifies the various ways in which chemical pollutants in the environment are disrupting human reproductive patterns and causing such problems as birth defects, sexual abnormalities, and reproductive failure. Reprint. Tour. NYT."
Amazon.com Review: By O T (Ontario, BC) - 'Our Stolen Future' is a great introduction to one of the most important scientific discoveries in our time. Having recently completed a thesis project at university on Endocrine Disruptors, I have reviewed hundreds of papers on the subject. This book is a good clear overview of the scientific literature on EDs. The authors are experts - Theo Colborn is largely responsible for creating the field by bringing together diverse researchers so they could see the big picture of their work. Many of the principle investigators are interviewed and quoted at length on the way chemicals participate in and interfere with delicate hormonal systems in animals (including humans). The major accomplishment of the book is to make an easy-to-follow story out of complex research. Many resources are available to help you assess the reliability of this story, and the best thing to do if you have any doubts is read review articles in scientific journals (which are easier to understand than technical papers). The Physicians for Social Responsibility (PSR) have a guidebook for health-care professionals on Endocrine Disruptors, and the US EPA has many reports on the matter. Beware of people or websites who try to 'debunk' this book (or the science behind it) by simply declaring it false, flawed or disproven. There is far too much supporting research for so simple a refutation.
OPINION: Significant and discussed in this book is the observation that at certain critical points in the development of animals, presumably including humans, exposure to extremely low levels of endocrine disruptor chemicals (EDC's) (such as BPA - Bisphenol-A or BPA, Diethylstilbestrol - DES, dioxins, PCBs, and chemicals used in the production of certain cleansers, dyes, flame retardants, plastics, pesticides, white papers ) perhaps just a few molecules, or in the parts per trillion, is sufficient to cause disruption of the animal's development, including proper sex differentiation, or the lack of it that produced androgynous ducks unable to reproduce under such conditions.
A endocrine disruptor is a synthetic chemical compound that mimics natural hormones when it is taken into the body of a human or other animal. It "disrupts" the endocrine system by turning on or off normal chemical signals that in turn can affect normal hormone levels, bodily functions, and significantly, the development of embryos. Further, unlike naturally occurring hormones ingested, for example from plants (phytoestrogens), synthetically-generated hormones accumulate in the body and can have a half-life of decades or longer.
One significance of this finding includes the observation that an important medical effect that occurs with exposure to chemicals in extremely low concentrations means that experiments to test for correlations between chemical exposure and subsequent serious medical problems will be deeply flawed if, for example, the experimental design does not include testing for the presence of the chemical at extremely low levels. A related concern is that even if harmful effects from exposure to extremely low concentrations of an endocrine disruptor are occurring, teasing out and proving that relationship can be also extremely difficult.
- Silent Spring, Rachael Carson, Mariner Books; Anv edition (October 22, 2002), ISBN-13: 978-061824906.
Amazon.com Review:
Silent Spring, released in 1962, offered the first shattering look at widespread ecological degradation and touched off an environmental awareness that still exists. Rachel Carson's book focused on the poisons from insecticides, weed killers, and other common products as well as the use of sprays in agriculture, a practice that led to dangerous chemicals to the food source. Carson argued that those chemicals were more dangerous than radiation and that for the first time in history, humans were exposed to chemicals that stayed in their systems from birth to death. Presented with thorough documentation, the book opened more than a few eyes about the dangers of the modern world and stands today as a landmark work.
- Shock or Chlorinate a Well, When, How-to - Procedure for Shocking a Well to (temporarily or maybe longer) "Correct" Bacterial Contamination
- US EPA: list of drinking water contaminants: see http://www.epa.gov/safewater/contaminants/index.html
- UV light: This patent application for UV light sterilization www.patentstorm.us/patents/6565803.html Lists good references on water
purification for Giardia et als
- Water Requirements, Home & Outdoor Living - how much water do people use, how much water do people need?
- Water Tests & Fees example water test fee schedule
- Water Testing: background comments on classes of water contaminants, & links to home buyer advice about water testing, drinking
- Water Treatment for Contamination, Hardness, Odors, Sediment, Etc: choices of systems, recommendations
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