Results ASTM C – Home, Health and Environment: Why Septic Tanks Matter. February 9, 1 Comment. Great news: You’re buying a new house!. ASTM C Standard Specification for Precast Concrete Septic Tanks. Astm c – (Med to Heavy Traffic) – Download as PDF File .pdf), Text File .txt) or read online.

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The septic system has failed. By Michael Hines, M. Without the soils that surround it and hold it together, a poor-quality tank will collapse when filled with water. Toxic chemicals, large volume of solids, or other materials besides sewage are discharged into the septic tank. Septic tank failures can result in dangerous situations, from a cave-in to contact with untreated human waste. Installers of poor-quality tanks know that they are relying on the subsoil for structural support.

The drain field is poorly designed or installed and does not allow equal distribution of the applied flow across the field. The tank should be made of high-strength concrete minimum of 5, psi [35 MPa] and contain zstm steel reinforcement to ensure the structural integrity of the tank at full design operating conditions.

Have your septic tank routinely pumped. In North Carolina, for example, a three-bedroom design means the dispersal field is sized for gal. The values given in parentheses are mathematical conversions to SI units that are provided for information only aetm are not considered standard.

ASTM C – Home, Health and Environment: Why Septic Tanks Matter

Homeowners often choose the lowest-cost system available. The engineer who designs the tank construction must be competent in concrete and structural design.

And now your dream has asmt true. Leaking toilets are the No. Leave a Reply Cancel reply Your email address will not be published. The usually recommended clean-out schedule is every three to five years or longer if you have a bigger tank.


Killing the bacteria means removing the ability of your septic system to function — never a pretty sight. Septic tanks require inspection and maintenance if they are to function properly over their expected service life of 50 years.

How could this have possibly happened?

Link to Active This link will always route to the current Active version of the standard. Some regulatory jurisdictions try to prevent garbage disposal units in homes with septic tanks.

Your email address will not be published. Excess flows are discharged into the tank, often from nondomestic sources. To make matters worse, even where ASTM C or comparable regional standards exist, septic tank inspectors and regulators do not always enforce the standard.

TV and radio airwaves are full of ads for miracle additives, enzymes and special bacteria to add to your septic tank to make it work better, smell like flowers and look good. The drain field is too small for the intended use, or drain field soils are inadequate to treat and move flows away from the site. In addition, your drain field or drip area should be walked to check for any wet or soggy spots that would indicate pending or actual system failure. Structural design of the septic tanks shall be by calculation or by performance.

Here is the inside track to help you understand the current dilemma:.

In fact, many regulatory jurisdictions pay lip service to standards that clearly describe how septic tanks are to be designed and constructed to be structurally sound. A septic system relies on viable bacteria to breakdown human waste.

ASTM C – 13 Standard Specification for Precast Concrete Septic Tanks

First rule of septic tanks: It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. Historically, EPA and other professional organizations have determined that such additives have not been shown to serve any useful purpose.


In fact, efficient, properly managed on-site wastewater treatment systems that include a septic tank system built to industry standards are a healthy, natural and environmentally responsible way for a homeowner to process wastewater from toilets, showers, washing machines and sinks.

This is gal. The solution is to size the septic system to handle the extra solids produced by these devices.

In the real qstm, many poor-quality septic tanks are installed every day and yes, these are the tanks that are likely to fail structurally and create health and environmental risks. The inlet inspection plug in the tank lid should be sealed to the tank with high-quality mastic or other sealant that will prevent water leaking into the tank.

ASTM C1227 – Home, Health and Environment: Why Septic Tanks Matter

Depth of satm and scum Condition of scum layer That the inlet tee is clear Proper operation of any installed pump Cleanliness of any effluent filter present In addition, your drain field or drip area should be walked to check for any wet or soggy spots that would indicate pending or actual system failure.

ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

Do NOT use commercial additives in your septic tank. Conclusion and responsibilities Many players are involved in providing you with a quality septic d1227 system:. The following tests shall also be done: Business development seminars held for the septic tank installers and pumpers encourage the sale of such additives to homeowners as a high-profit revenue source for the industry. With all the regulatory programs around, why are there so many septic tank problems?