Pettrix
Platinum Member
Can you site an example where a single family home leach field has contaminated ground water? Or is it here say and unsubstantiated anecdote?
We have "failed systems" in our area (I served on the board of selectmen) But no health Disasters were reported. 'Fortunate perhaps....
Yes, there is plenty of evidence of failed systems causing health problems. For example, in Michigan, thousands of failed septic systems are entering into Michigan's drinking water. Thousands of failed septic tanks across the state threaten Michigan's waters | MLive.com
In Ohio, over 195,000 failed septic systems have been reported (1 in 3 homes). 31% of septic systems are tanking | The Columbus Dispatch
There is A LOT of info on Google showing how failed septic systems are causing problems throughout the USA.
According to the EPA
Failure rates for on-lot sewage septic systems across the country are reported at 10 percent annually. Inadequately treated sewage from failing septic systems is the most frequently reported cause of groundwater contamination
The most serious documented problems involve contamination of surface waters and ground water with disease-causing pathogens and nitrates. Other problems include excessive nitrogen discharges to sensitive coastal waters and phosphorus pollution of inland surface waters, which increases algal growth and lowers dissolved oxygen levels. Contamination of important shellfish beds and swimming beaches by pathogens is a concern in some coastal regions.