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More Information

PHOTO of sewage contamination leaking to a yard surface from a broken sewer pipe Septic system contaminants: how to identify water and soil contaminants produced by onsite waste disposal systems
InspectAPedia®  -         

  • Septic system contaminants: identifying pathogens contaminants produced in soil or water by onsite waste disposal systems
  • Questions & answers about the pathogenic contaminants found in private septic systems and wastewater

This document identifies the common contaminants found in onsite septic systems. We discusses further the principal nitrogen contaminants produced by septic systems or on-site waste disposal systems. This article discusses nitrogen and nitrate contaminants and links to sister documents discussing septic tank pathogens and other contaminants as well as to discussions of what to do about sewage backups in buildings and how to inspect and repair a septic system after flooding. We include discussion of health or other concerns with soil and groundwater contamination and with measures adopted to address these problems.

InspectAPedia offers impartial, unbiased advice without conflicts of interest. We will block advertisements which we discover or readers inform us are associated with bad business practices, false-advertising, or junk science. Our contact info is at InspectAPedia.com/Contact.htm.

The photo above shows what dirt and sewage effluent may look like in a yard where the sewer line between the house and septic tank is damaged and leaking. Nitrates, nitrites, and sewage pathogens leaking from a septic system to the soil surface and subsoil waters are potential health hazards.

Readers should also see SEWAGE CONTAMINANTS in FRUIT / VEGETABLES and also our discussion of pathogens in sewage at SEWAGE PATHOGENS in SEPTIC SLUDGE: what makes up the contents of residential sewage? Anyone working on or around or owning a septic tank should be sure to see SEPTIC & CESSPOOL SAFETY.

© Copyright 2012 InspectAPedia.com, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use page top links to major topics or use links at the left of each page to navigate within topics and documents at this website. Green links show where you are in a document series or at this website.

What are the Common Septic Tank & Onsite Septic System Contaminants & Pathogens?

For a detailed list of the pathogens found in common household wastewater such as a septic tank and drainfield, see Readers should also see our discussion of pathogens in sewage at SEWAGE PATHOGENS in SEPTIC SLUDGE: what makes up the contents of residential sewage? Stated more simply, and according to various sources such as the Utah DEQ

"The major contaminant discharged from septic systems is disease-causing germs. These germs (bacteria and viruses) - can cause many human diseases.

Another contaminant discharged from septic systems is nitrogen in the form of nitrate. If the nitrate level of drinking water is too high, infants, up to the age of six months old, can develop a fatal disease called blue baby syndrome (methemoglobenemia).

Additionally, if toxic chemicals are disposed in a septic system, they can percolate through the drainfield and into the ground water."

Three Levels of Basic Septic System Treatment to Reduce Discharge of Contaminants to the Environment

  1. Initial wastewater sewage treatment occurs in the holding tank (or septic tank) where solids and some greases are separated for later removal by a septic cleaning or pumping contractor. These contaminants must be hauled to an approved disposal site and are regulated.
  2. The second phase of onsite waste treatment which also may occur in the holding tank or to some degree in soils of the absorption bed, is the removal of dissolved or emulsified contaminants.
  3. The third and final phase of onsite waste treatment is the processing of pathogens in the clarified effluent. At onsite waste systems (private septic systems using, for example, a leach field), liquid waste leaving the absorption bed seeps into the ground where it should be processed by a biomass of bacteria whose purpose is to digest certain pathogens, leaving the remaining effluent sufficiently sanitary as to not be considered a groundwater contaminant.

Septic System Operating Defects Prevent Successful Treatment of Sewage Contaminants

Not only are there defects which prevent adequate biomass treatment - thus releasing contaminated effluent into local soils, streams, and possibly wells, but further, as this water passes through local soils it may pick or contain up other contaminants not adequately processed by the biomass.

Of these nitrogen (discussed first below) is a major concern. Other contaminants that may be conveyed to nearby streams or wells includes soil particles, heavy metals, organic compounds, animal waste, and, if the system is in a more urban area, potentially oil and grease.

This article collects and discusses various contaminants that can be expected to escape the third phase of septic treatment just named. Separately we discuss the causes of septic system failure and their remedy. See More Information below.

NITROGEN CONTAMINATION: nitrogen discharge from sewage treatment plants

New York -- January 11, 2006. New York City will spend more than $700 million on advanced water treatment systems to help restore Long Island Sound's water quality by upgrading municipal sewage treatment plants over the coming decade in order to reduce the discharge of nitrogen.

Nitrogen in treated sewage effluent causes a number of problems including excessive algae growth, reduced oxygen in water, and the death of fish, shellfish, and plants. The project will address Jamaica Bay and other water systems in the area. -- New York Times, page B4, 1/11/2006.

NITROGEN REFERENCES - Nitrogen Contaminants in Sewage - Reference List & Excerpts

That nitrogen release is a worldwide concern is evident from these example reports on nitrogen and sewage treatment.

Israel: Evaluation of Pollution in the Gulf of Eilat - Report For the Ministries of Infrastructure, Environment and Agriculture.

"There is consensus that the water clarity and coral reefs of Eilat are deteriorating. The widely suggested explanation for the degradation is that Eilat waters are suffering from sustained inputs of organic carbon and nutrients.

The International Expert Team (IET) was tasked to identify existing and potential sources of pollution; assess the carrying capacity of the Gulf for fish-farming; and formulate recommendations for minimization of pollution and environmental pressures. The IET considered 10 factors contributing to pollution in the Gulf: phosphate dust, sewage, fish-farms, groundwater inputs, siltation, marina activities, oil, tourist diving activities, water temperature, and port-ballast water.

The IET recognizes that there have been multiple stressors on the coral reefs of Eilat over the past 25 years, and these are discussed and ranked in the report. Presently, environmental pressures include: 1) continued inputs of nutrients from Aqaba phosphate dust, Aqaba sewage, and fish farms; 2) siltation from construction; 3) diving activities and, perhaps, 4) increased water temperature."

" In the past 25 years, total nitrogen in the water of the northern Gulf appears to have doubled, but varies seasonally. The large seasonal fluctuations are approximately equivalent to all the nitrogen input from fish-farms over the last 10 years and one-fourth of all the nitrogen input from sewage over the last 30 years;..."

China: The Problems and Countermeasures on Agricultural Sewage Irrigation in China - Yang Jifu (Irrigation and Drainage Department,IWHR)

"Abstract Due to the lack of agricultural water resources and the continuously increasing volume of sewage discharging all over the country, sewage has already become an important water resources for agriculture irrigation in the suburbs near many big cities in the North.In 1991 sewage irrigation area has reached 3 million hectares about 6%of the total irrigation area.

On the one hand, sewage irrigation alleviates agricultural water shortage, and on the other hand, it reduces the harmful impact on water environment by discharging sewage. However,three big problems on sewage irrigation have been existing for many years. They are the low water quality, the blind development on irrigation area and the backward research and management.

Thus, the sewage irrigation has become one of the three sources of water environment worsening in the village.It has been jeopardizing not only the quality of food and drinking water in the irrigation area, but also the food safety of 1.6 billion populations until the 21 st century.The following suggestions and countermeasures are provided in the Paper."

PATHOGENS in SEWAGE

See SEWAGE PATHOGENS in SEPTIC SLUDGE for a list and discussion of of the common pathogens and other contaminants in residential sewage. Also see SEWAGE CONTAMINATION in buildings and SEWAGE CONTAMINANTS in FRUIT / VEGETABLES.

Questions & Answers regarding this article

Questions & answers about contaminants found in private septic systems and wastewater.

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SEPTIC SYSTEM INSPECT DIAGNOSE REPAIR

SEPTIC TREATMENTS & CHEMICALS

SEWAGE & SEPTIC CONTAMINANTS
SEWAGE BACKUP, WHAT TO DO
SEWAGE BACKUP TEST & CLEANUP
SEWAGE BACKUP PREVENTION
SEWAGE CONTAMINATION in buildings
SEWAGE CONTAMINANTS in FRUIT / VEGETABLES
SEWAGE EJECTOR / GRINDER PUMPS
SEWAGE LEVELS in SEPTIC TANKS
SEWAGE NITROGEN CONTAMINANTS
  NITROGEN CONTAMINATION
  NITROGEN REFERENCES
SEWAGE PATHOGENS in SEPTIC SLUDGE
  Components Entering a Septic Tank
  Components of Raw Sewage
  Components of Septic Tank Effluent
  Settled septic tank sludge
  Floating septic tank scum
  Gases in the septic tank

SEWAGE PUMPS
SEWAGE PUMP CLOG DAMAGE

SEWER BACKUP PREVENTION
SEWER GAS ODORS

  • "Bacterial Pathogens Recovered from Vegetables Irrigated by Wastewater in Morocco", Y. Karamoko, K. Ibenyassine, M. M. Ennaji, B. Anajjar, R. Ait Mhand, M. Chouibani, Journal of Environmental Health, June 2007.
    Abstract:
    The authors obtained 50 vegetable samples from various regions in Morocco and examined them to determine the micro biological quality of these products. Aerobic count, coliform, enterococci, and Staphylococcus areus were evaluated. This analysis revealed high levels of enterococci, fecal coliforms, and total coliforms. No coagulase-positive Staphylococcus aureas was detected in any of the samples analyzed. Biochemical identification of Enterobacteriaceae showed the presence of Citrobacter freundii (28 percent), Enterobacter cloacae (27 percent), Escherichia coli (16 percent), Enterobacter sakazakii (12 percent), Klebsiella pneamoniae (17 percent), Serratia liquefaciens (11 percent), and Salmonella arizonae (0.7 percent). The results clearly demonstrate that vegetables irrigated with untreated wastewater have a high level of microbiological contamination. Consequently, these vegetables may be a threat for the Moroccan consumer and may be considered a serious risk to Moroccan public health.ABSTRACT FROM AUTHOR Copyright of Journal of Environmental Health is the property of National Environmental Health Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.
    Contact Us to request a copy of this article stored as BacterialPathogens.pdf if you have difficulty obtaining a copy of this full article for private use.
  • Beuchat, L.R. (1996). Pathogenic microorganisms associated with fresh produce. Journal of Food Protection, 59(2), 204-216.
  • Breuer, T, Benkel, D.H., Shapiro, R.L., Hall. W.N., Winnett. M.M., Linn, M.J., Timothy, J.N., Barrett. J., Dietrich, S., Downes, EP, Toney, D-M., Pearson, J.L., Rolka. H., Slutsker. L, & Griffin, PM. (2001). A multi-state outbreak of Escherichia coli O157:H7 infections linked to alfalfa sprouts grown from contaminated seeds, Emerging Infectious Diseases, 7(6), 977-982.
  • Evans, M.R., Ribiero, CD., & Salmon, R.L. (2003). Hazards of healthy Living: Boiled water and salad vegetables as risk Factors For Campylobacter infection. Emerging Infectious Disease, 9(10), 1219-1225.
  • Guo, X., Chen, j . , Brackett, R.E., & Beuchat. LR. (2001). Survival of Saimonellae on and in tomato plants From the time of inoculation at flowering and early stages of fruit development through fruit ripening. Applied and Environmental Microbiology, 67(10), 4760-4764
  • Madden, J.M. (1992). Microbial pathogens in fresh produce—The regulatory perspective. Journal of Food Protection, 55, 821-823.
  • Shearer, A.E., Strapp, CM., & Joerger, R.D. (2001). Evaluation of polymerase chain reaction-based system for detection of Salmonella enteritidis, Escherichia coli O157:H7, Listeria spp., and Listeria monocytogenes on Fresh Fruit and vegetables. Journal of Food Protection, 64(6), 788-795.
  • "Septic Tank/Drainfield System Fact Sheet", Utah Department of Environmental Quality, Division of Drinking Water, Source Protection Program - (801) 536-4200 Division of Water Quality - (801) 538-6146 Sonja Wallace, Pollution Prevention Coordinator - (801) 536-4477 Environmental Hotline - 1-800-458-0145 - Original source: http://www.drinkingwater.utah.gov/documents/spec_services/pollution_prevention_septic_tanks.pdf
  • New York State Wastewater Treatment Standards - Individual Household Systems, Appendix 75-A (1990), Public Health Law 201(1)(1).
  • New York State Alternative Septic System Design Regulations, Wastewater Treatment Standards - Individual Household Systems, Appendix 75-A, of Public Health Law 201(1)(1) 1990.
  • Advanced Onsite Wastewater Systems Technologies, Anish R. Jantrania, Mark A. Gross, CRC Taylor & Francis, 2006 ISBN 0-8493-3029-7 order a copy from the InspectAPedia bookstore (Amazon.com)
  • Anish Jantrania, Ph.D., P.E., M.B.A., Consulting Engineer, Mechanicsville VA, 804-550-0389
  • The Septic System Owners's Manual, Lloyd Kahn, Blair Allen, Julie Jones, Shelter Publications, 2000. ISBN 0-936070-20-X - order a copy from the InspectAPedia bookstore (Amazon.com)
  • Onsite wastewater treatment systems, Bennette D. Burks & Mary Margaret Minnis. Textbook and reference manual on all aspects of onsite treatment. This is one of the best books we've reviewed on the subject, with an excellent balance of clear simple explanation and solid engineering. Topics: Soil & Site Selection, Hydraulics, System Selection & Design, Wastewater Biology, History & Mythology of Onsite Wastewater Treatment. $49.95, Hogarth House, Ltd., 800-993-2665 x327 order a copy from the InspectApedia bookstore (Amazon.com) or order by telephone 800 -993-2665 x327 (Univ. Wisc. Bookstore)
  • Percolation Testing Manual, CNMI Division of Environmental Quality, Gualo Rai, Saipan provides an excellent English Language manual guide for soil percolation testing. Original source: www.deq.gov.mp/artdoc/Sec6art108ID255.pdf
  • Soil Test Pit Preparation, fact sheet, Oregon DEQ Department of Environmental Quality, original source www.deq.state.or.us/wq/pubs/factsheets/onsite/testpitprep.pdf The Oregon DEQ onsite water quality program can be contacted at 811 South Ave, Portland OR 97204, 800-452-4011 or see http://www.oregon.gov/DEQ/
  • Thanks to reader Michael Roth for technical link editing 6/29/09.
  • The Septic System Information Website home page for this topic
  • Septic Systems Inspection, Testing, & Maintenance- online textbook. Detailed how to inspect, maintain, repair information
  • The Home Buyer's Guide to Septic Systems
  • Septic Tank Pumping Guide: When, Why, How to pump the septic tank
  • Home & Outdoor Living Water Requirements
  • Septic Tank Capacity vs Usage in Daily Gallons of Wastewater Flow, calculating required septic tank size, calculating septic tank volume from size measurements
  • Septic Tank/Soil-Absorption Systems: How to Operate & Maintain [ copy on file as /septic/Septic_Operation_USDA.pdf ] - , Equipment Tips, U.S. Department of Agriculture, 8271 1302, 7100 Engineering, 2300 Recreation, September 1982, web search 08/28/2010, original source: http://www.fs.fed.us/t-d/pubs/pdfimage/82711302.pdf.
  • How Big Should the Leach Field Be? - table of soil percolation rate vs. field size
  • Septic System Drainfield Absorption System Biomat Formation - what leads to drain field clogging and expensive drainfield repairs
  • Table of Required Septic & Well Clearances: Distances Between Septic System & Wells, Streams, Trees, etc.
  • Ten Steps to Keeping a Septic System Working, suggestions from the U.S. EPA, edits and additions by DJF
  • Pennsylvania State Fact Sheets relating to domestic wastewater treatment systems include
    • Pennsylvania State Wastewater Treatment Fact Sheet SW-161, Septic System Failure: Diagnosis and Treatment
    • Pennsylvania State Wastewater Treatment Fact Sheet SW-162, The Soil Media and the Percolation Test
    • Pennsylvania State Wastewater Treatment Fact Sheet SW-l64, Mound Systems for Wastewater Treatment
    • Pennsylvania State Wastewater Treatment Fact Sheet SW-165, Septic Tank-Soil Absorption Systems
    • Document Sources used for this web page include but are not limited to: Agricultural Fact Sheet #SW-161 "Septic Tank Pumping," by Paul D. Robillard and Kelli S. Martin. Penn State College of Agriculture - Cooperative Extension, edited and annotated by Dan Friedman (Thanks: to Bob Mackey for proofreading the original source material.)
  • ...

Books & Articles on Building & Environmental Inspection, Testing, Diagnosis, & Repair

  • Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the InspectAPedia Bookstore. Also see our Book Reviews - InspectAPedia.
  • Home Reference Book - Carson Dunlop The Home Reference Book - the Encyclopedia of Homes, Carson Dunlop & Associates, Toronto, Ontario, 2010, $69.00 U.S., is available from Carson Dunlop. The Home Reference Book is a bound volume of more than 450 illustrated pages that assist home inspectors and home owners in the inspection and detection of problems on buildings. The text is intended as a reference guide to help building owners operate and maintain their home effectively. InspectAPedia.com ® editor Daniel Friedman is a contributing author. Field inspection worksheets are included at the back of the volume.
  • Inspecting Septic Systems: Online Book, Inspection, Test, Diagnosis, Repair, & Maintenance: our Online Septic Book: Septic Testing, Loading & Dye Tests, Septic Tank Pumping, Clearances, details of onsite waste disposal system inspection, testing, repair procedures.

  • Advanced Onsite Wastewater Systems Technologies, Anish R. Jantrania, Mark A. Gross. Anish Jantrania, Ph.D., P.E., M.B.A., is a Consulting Engineer, in Mechanicsville VA, 804-550-0389 (2006), Advanced Onsite Wastewater Systems Technologies. Outstanding technical reference especially on alternative septic system design alternatives. Written for designers and engineers, this book is not at all easy going for homeowners but is a text we recommend for professionals--DF.
  • AEROBIC SEPTIC SYSTEMS
  • Builder's Guide to Wells and Septic Systems, Woodson, R. Dodge: $ 24.95; MCGRAW HILL B; TP; Quoting from Amazon's description: For the homebuilder, one mistake in estimating or installing wells and septic systems can cost thousands of dollars. This comprehensive guide filled with case studies can prevent that. Master plumber R. Dodge Woodson packs this reader-friendly guide with guidance and information, including details on new techniques and materials that can economize and expedite jobs and advice on how to avoid mistakes in both estimating and construction. Chapters cover virtually every aspect of wells and septic systems, including on-site evaluations; site limitations; bidding; soil studies, septic designs, and code-related issues; drilled and dug wells, gravel and pipe, chamber-type, and gravity septic systems; pump stations; common problems with well installation; and remedies for poor septic situations. Woodson also discusses ways to increase profits by avoiding cost overruns.
  • Country Plumbing: Living with a Septic System, Hartigan, Gerry: $ 9.95; ALAN C HOOD & TP; Quoting an Amazon reviewer's comment, with which we agree--DF:This book is informative as far as it goes and might be most useful for someone with an older system. But it was written in the early 1980s. A lot has changed since then. In particular, the book doesn't cover any of the newer systems that are used more and more nowadays in some parts of the country -- sand mounds, aeration systems, lagoons, etc.

Septic & Sewage Pathogens and Contaminants, References & Research Articles

  • Amahmid, O., Asmama, S., & Bouhoum, K. (1999). The effect of waste water reuse in irrigation on the contamination level of food crops by Giardia cysts and Ascaris eggs. International Journal of Food Microbiology, 49(1-2), 19-26.
  • Barak, J.D., Whitehand, L.C., & Charkowski, A.O. (2002). Differences in attachment of Salmonella enterica serovars and Escherichia coli O157:H7 to alfalfa sprouts. Applied and Environmental Microbiology, 68(10), 4758-4763.
  • Beuchat, L.R. (1996). Pathogenic microorganisms associated with fresh produce. Journal of Food Protection, 59(2), 204-216.
  • Breuer, T., Benkel, D.H., Shapiro, R.L., Hall, W.N., Winnett, M.M., Linn, M.J., Timothy, J.N., Barrett, J., Dietrich, S., Downes, F.P., Toney, D.M., Pearson, J.L., Rolka, H., Slutsker. L., & Griffin, P.M. (2001). A multi-state outbreak of Escherichia coli O157:H7 infections linked to alfalfa sprouts grown from contaminated seeds. Emerging Infectious Diseases, 7(6), 977-982.
  • Castro-Rosas, J., & Escartin, E.F. (2000). Survival and growth of Vibrio cholerae O1, Salmonella typhi, and Escherichia coli O157:H7 in alfalfa sprouts. Journal of Food Science, 65(1), 162-165.
  • Charkowski, A.O., Barak, J.D., Sarreal, C.Z., & Mandrell, R.E. (2002). Growth and colonization patterns of Salmonella enterica and Escherichia coli O157:H7 on alfalfa sprouts and the effects of sprouting temperature, i inoculum /in·oc·u·lum/ (-ok´u-lum) pl. inoc´ula   material used in inoculation.
  • Evans, M.R., Ribeiro, C.D., & Salmon, R.L. (2003). Hazards of healthy living: Bottled water and salad vegetables as risk factors for Campylobacter infection. Emerging Infectious Disease, 9(10), 1219-1225.
  • Frost, J.A., McEvoy, M.B., Bentley, C.A., Andersson, Y., & Rowe, B. (1995). An outbreak of Shigella sonnei infection associated with consumption of iceberg. Emerging Infectious Disease, 1(1), 26-28.
  • Guo, X., Chen, J., Brackett, R.E., & Beuchat, L.R. (2001). Survival of Salmonellae on and in tomato plants from the time of inoculation at flowering and early stages of fruit development through fruit ripening, said of meat. See curing. . Applied and Environmental Microbiology, 67(10), 4760-4764.
  • Guo, X., Chen, J., Brackett, R.E., & Beuchat, L.R. (2002). Survival of Salmonellae on tomatoes stored at high relative humidity, in soil, and on tomatoes in contact with soil. Journal of Food Protection, 65(2), 274-279.
  • Guo, X., Iersel, M.W.V., Chen, J., Brackett, R.E., & Beuchat, L.R. (2002). Evidence of association of salmonellae with tomato plants grown hydroponically in inoculated nutrient solution. Applied and Environmental Microbiology, 68(7), 3639-3643.
  • Itoh, Y., Sugita-Konishi, Y., Kasuga, E, Iwaki, M., Hara-Kudo, Y., Saito, N., Noguchi, Y, Konuma, H., & Kumagai, S. (1998) Enterohemorrhagic Escherichia coli enterohemorrhagic Escherichia coli EHEC Any of the E coli serotypes–eg O29, O39, O145 that produces shiga-like toxins, causing bloody inflammatory diarrhea, evoking a HUS. See Escherichia coli O157:H7, Hemolytic uremic syndrome.  O157:H7 present in radish sprouts. Applied and Environmental Microbiology, 64(4), 1532-1535.
  • Madden, J.M. (1992). Microbial pathogens in fresh produce--The regulatory perspective. Journal of Food Protection, 55, 821-823.
    McMahon, M.A.S., & Wilson, I.G. (2001). The occurrence of enteric pathogens and Aeromonas species in organic vegetables. International Journal of Food Microbiology, 70(1-2),155-162.
  • Puohiniemi, R., Heiskanen, T., & Siitonen, A. (1997). Molecular epidemiology of two international sprout-borne Salmonella outbreaks. Journal of Clinical Microbiology . 35(10), 2487-2491.
  • Shearer, A.E., Strapp, C.M., & Joerger, R.D. (2001). Evaluation of polymerase chain reaction-based system for detection of Salmonella enteritidis, Escherichia coli O157:H7, Listeria spp., and Listeria monocytogenes on fresh fruit and vegetables. Journal of Food Protection, 64(6), 788-795.
  • Takeuchi, K., Hassan, A.N., & Frank, J.F. (2001). Penetration of Escherichia coli O157:H7 into lettuce as influenced by modified atmosphere and temperature. Journal of Food Protection, 64(11), 1820-1823.
  • Wright, C., Kominos, S.D., & Yee, R.B. (1976). Enterobacteriaceae and Pseudomonas aeruginosa recovered from vegetable salads. Applied and Environmental Microbiology, 31(3), 453-454.
  • ...

Onsite Wastewater Disposal Books

  • Onsite Wastewater Disposal, R. J. Perkins; Quoting from Amazon: This practical book, co-published with the National Environmental Health Association, describes the step-by-step procedures needed to avoid common pitfalls in septic system technology. Valuable in matching the septic system to the site-specific conditions, this useful book will help you install a reliable system in both suitable and difficult environments. Septic tank installers, planners, state and local regulators, civil and sanitary engineers, consulting engineers, architects, homeowners, academics, and land developers will find this publication valuable.
  • Onsite Wastewater Treatment Systems, Bennette D. Burks, Mary Margaret Minnis, Hogarth House 1994 - one of the best septic system books around, suffering a bit from small fonts and a weak index. While it contains some material more technical than needed by homeowners, Burks/Minnis book on onsite wastewater treatment systems a very useful reference for both property owners and septic system designers.
  • Septic Tank/Soil-Absorption Systems: How to Operate & Maintain [ copy on file as /septic/Septic_Operation_USDA.pdf ] - , Equipment Tips, U.S. Department of Agriculture, 8271 1302, 7100 Engineering, 2300 Recreation, September 1982, web search 08/28/2010, original source: http://www.fs.fed.us/t-d/pubs/pdfimage/82711302.pdf
  • Soil Percolation Tests soil perc testing guide and instructions
  • Percolation Testing Manual, CNMI Division of Environmental Quality, PO Box 501304, Saipan, MP 96950
  • Planting Over Septic System Component", Daniel Friedman (author/editor, InspectAPedia.com), The Innovator, Winter/Spring 2008, BCOSSA, British Columbia OnSite Sewage Association, 201-3542 Blansard St., Victoria BC V8X 1W3 Canada
  • Save the Septic System - Do Not Flush These Items Down the Toilet, Daniel Friedman, InspectAPedia.com - PDF document, printable
  • SEPTIC STANDARDS
  • SEPTIC MAGAZINES
  • Septic System Owner's Manual, Lloyd Kahn, Blair Allen, Julie Jones, Shelter Publications, 2000 $14.95 U.S. - easy to understand, well illustrated, one of the best practical references around on septic design basics including some advanced systems; a little short on safety and maintenance. Both new and used (low priced copies are available, and we think the authors are working on an updated edition--DF. Quoting from one of several Amazon reviews: The basics of septic systems, from underground systems and failures to what the owner can do to promote and maintain a healthy system, is revealed in an excellent guide essential for any who reside on a septic system. Rural residents receive a primer on not only the basics; but how to conduct period inspections and what to do when things go wrong. History also figures into the fine coverage.
  • Test Pit Preparation for Onsite Sewage Evaluations, State of Oregon Department of Environmental Quality, Portland OR, 800 452-4011. PDF document. We recommend this excellent document that offers detail about soil perc tests, deep hole tests, safety, and septic design. Readers should also see Soil Percolation Tests and for testing an existing septic system, also see Dye Tests
  • Grass is Always Greener Over the Septic Tank, Bombeck, Erma: $ 5.99; FAWCETT; MM; This septic system classic whose title helps avoid intimidating readers new to septic systems, is available new or used at very low prices. It's more entertainment than a serious "how to" book on septic systems design, maintenance, or repair. Not recommended -- DF.
  • US EPA Onsite Wastewater Treatment Systems Manual Top Reference: US EPA's Design Manual for Onsite Wastewater Treatment and Disposal, 1980, available from the US EPA, the US GPO Superintendent of Documents (Pueblo CO), and from the National Small Flows Clearinghouse. Original source http://www.epa.gov/ORD/NRMRL/Pubs/625R00008/625R00008.htm
  • Water Wells and Septic Systems Handbook, R. Dodge Woodson. This book is in the upper price range, but is worth the cost for serious septic installers and designers. Quoting Amazon: Each year, thousands upon thousands of Americans install water wells and septic systems on their properties. But with a maze of codes governing their use along with a host of design requirements that ensure their functionality where can someone turn for comprehensive, one-stop guidance? Enter the Water Wells and Septic Systems Handbook from McGraw-Hill.
    Written in language any property owner can understand yet detailed enough for professionals and technical students this easy-to-use volume delivers the latest techniques and code requirements for designing, building, rehabilitating, and maintaining private water wells and septic systems. Bolstered by a wealth of informative charts, tables, and illustrations, this book delivers:
    * Current construction, maintenance, and repair methods
    * New International Private Sewage Disposal Code
    * Up-to-date standards from the American Water Works Association
  • Wells and Septic Systems, Alth, Max and Charlet, Rev. by S. Blackwell Duncan, $ 18.95; Tab Books 1992. We have found this text very useful for conventional well and septic systems design and maintenance --DF. Quoting an Amazon description:Here's all the information you need to build a well or septic system yourself - and save a lot of time, money, and frustration. S. Blackwell Duncan has thoroughly revised and updated this second edition of Wells and Septic Systems to conform to current codes and requirements. He also has expanded this national bestseller to include new material on well and septic installation, water storage and distribution, water treatment, ecological considerations, and septic systems for problem building sites.
  • The NSFC Products List has an excellent list of design manuals/modules available from their website or by telephone 800-624-8301
  • Submissions welcome. send us a suggested document link or request an exchange of website links
  • ...
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