environmental public health onsite wastewater treatment jim gaughan, p.e., environmental engineer...
TRANSCRIPT
![Page 1: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/1.jpg)
ENVIRONMENTAL PUBLIC HEALTHOnsite Wastewater Treatment
Jim Gaughan, P.E., Environmental Engineer
Bureau of Environmental Health Services
![Page 2: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/2.jpg)
Onsite Wastewater Treatment Malfunctioning onsite systems
Missouri Onsite Sewage Laws
Minimum Construction Standards
Permitting and inspection process
![Page 3: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/3.jpg)
Protecting Public Health Pathogens in water Water contains numerous microbes – not all are
pathogenic Viruses >120 enteric viruses Bacteria Protozoans Fungi Worms
Nitrates, phosphorus PPCPs – pharmaceuticals and personal care products
![Page 4: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/4.jpg)
Onsite Treatment Uses Soil-Pathogen Survival In Soil-
Survival can be quite variable
Organism Days
Coliforms 38
Salmonella 120
Enteroviruses 200
Cryptosporidium 365
![Page 5: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/5.jpg)
Factors Affecting Pathogen Survival
Temperature Survival increases with decreasing temperature.
Soil texture Finer textures are better for treatment
Soil filters out larger pathogens Clay particles trap viruses
Moisture Moist soil prolongs microbial viability; drying
inactivates most pathogens. Predation and competition Time
![Page 6: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/6.jpg)
WasteWater Recycling
![Page 7: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/7.jpg)
Missouri LawsGoverning Onsite Wastewater
RSMo 701.025 – 701.059
![Page 8: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/8.jpg)
DEPARTMENT OF HEALTH AND SENIOR SERVICES (DHSS) and Local Administrative Authorities
Sub
surf
ace
Sur
face
‘Domestic’ Waste from Single and Multi-Family Residential and from Commercial Facilities
Multi-Family Residential andCommercial ‘Domestic’ Waste - RO
Multi-Family &Commercial Lagoons - RO
Single FamilyResidential Lagoons
JURISDIC
TION
DHSS? or D
NR?
Based on DHSS Rule: 3,000 Gallons per Day > 3,000 Gallons per Day
Approval of the use of Onsite Systems for Subdivisions and Residential Housing Units
( ≥ 7 new or ≥ 3 additional units) - CO Commercial/Industrial Facilities
Generating ‘Non-domestic’ Wastewater Determined by DNR - RO or CO
Land Application ofSeptage & Wastewater - RO
NPDES Discharge Permits - RO
DEPARTMENT OF NATURAL RESOURCES (DNR)Central Office (CO) and Regional Offices (RO)
![Page 9: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/9.jpg)
26 - State
27 - Contract
61 - Ordinance
FY 2011
Administrative Authority
![Page 10: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/10.jpg)
Administrative Authority County Health Departments Planing and Zoning Commissions County Building Departments County Public Works Department Sewer Districts Municipalities
Missouri Department of Health and Senior Services
![Page 11: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/11.jpg)
Local Ordinances Must establish a system at least equal to state
regulation and inspection Local authorities may enact and enforce
standards that are more stringent or restrictive than state standards
![Page 12: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/12.jpg)
Exemptions from DHSS Regulation Single-family residence lots of 3 acres or
more if: the system is at least 10 feet from property lines; sewage does not leave the property, create a nuisance,
or contaminate surface waters or groundwater; and the lot is not adjacent to a Corps of Engineers or public
utility lake.
Multi-family residence lots with 10 acres per residence if: same conditions as for 3 acre exemption are met; and sewage systems are at least 360 feet apart.
![Page 13: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/13.jpg)
Inspection of Systems Existing systems are not inspected unless:
A valid complaint is received or with sufficient probable cause
Part of a communicable disease investigation A construction permit application is submitted to
make a major repair
At the request of a private party for a real estate inspection/ evaluation (non-regulatory)
![Page 14: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/14.jpg)
Repairs to Onsite Systems Repairs not requiring a permit
Minor repairs such as replacing physically-damaged pipe
Cleaning out a lagoon or a sewage tank Repairs requiring a permit include
Adding additional lateral lines Replacing a septic tank Expanding a lagoon Relocating a part of the system Generally, remedial action required by an NOV
![Page 15: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/15.jpg)
ComplaintInvestigation Process
Malfunctioning
Onsite Wastewater Systems
![Page 16: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/16.jpg)
Legal AuthorityRSMo 701.025 through 701.059
701.029 prohibits operation of any onsite sewage disposal system that causes contamination of surface waters or groundwater, presents a nuisance or a health hazard
701.031 requires property owners of all buildings where people live, work or assemble to provide for the sanitary disposal of all domestic sewage.
![Page 17: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/17.jpg)
Legal AuthorityRSMo 701.025 through 701.059
701.033 provides right of entry to property to investigate and enforce the sections of the sewage law
701.037 establishes the notice of violation criteria 701.038 establishes the authority to investigate
complaints from an aggrieved party or an adjacent land owner
![Page 18: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/18.jpg)
Complaint Handling Is the complaint from an aggrieved party or
an adjoining property owner? If complaint is valid, determine if it alleges a
nuisance or an imminent hazard Do not take any action based solely on a
phoned or written complaint –investigate
![Page 19: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/19.jpg)
Complaint Investigation
Document everything
Dye tracing should not be used routinely
The investigation should determine if there is evidence of an alleged violation of state statute or local ordinance
![Page 20: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/20.jpg)
Probable CauseWithout a Complaint
“…reasonable grounds to believe that there has been a violation of any provision of sections 701.025 through 701.059 or the rules…”
Nuisance: Repairs or
new system construction
![Page 21: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/21.jpg)
Issuing ANotice Of Violation
Use form E3.10 Violation Notice Serve NOV on owner… by registered mail or
other authorized method
![Page 22: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/22.jpg)
Minimum Construction Standards for Onsite Wastewater Treatment Systems
19 CSR 20-3.060
![Page 23: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/23.jpg)
Construction Standards Cover Daily wastewater flow Site/soil evaluations Absorption field sizing Primary treatment – septic
tanks, lagoons; or Secondary treatment – aerobic
treatment units (ATU’s) Alternative systems
Advanced treatment Pressure distribution
systems
![Page 24: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/24.jpg)
Permit Process Authority issues a packet with numbered
application – or issues an application number for forms downloaded from the Internet
Property owner or agent submits: Application fee Application and system design Soil evaluation report Engineering report (if applicable) Variance application (if applicable)
![Page 25: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/25.jpg)
Application Review Check application for completeness – it
must include all information needed to determine compliance with the construction standards, such as: Daily flow Soil report, including loading rate or perc rate Size and type of tanks and/or size of lagoon Size and type of absorption field Groundwater drainage system if needed
![Page 26: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/26.jpg)
Design Review Review Soil Morphology Report Confirm Adequate Vertical Separation Check Tank Size and Field Size Check Elevations Check for Adequate Setback Distances If the application and design comply with the
standards, proceed; otherwise, return to applicant for modifications
![Page 27: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/27.jpg)
Variances With assurance for protection of public
health and preservation of surface and groundwater quality, variances may be allowed on a case by case basis for: Setback distances Minimum distance between infiltrative surface
and restrictive feature or bedrock Minimum areas for infiltrative surfaces
![Page 28: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/28.jpg)
Pre-Construction Site Visit Perform preliminary site inspection If the system layout complies with the
standards, issue a construction permit (see copy of Construction Permit/ Final Inspection form and Important Notices)
![Page 29: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/29.jpg)
System Final Inspection Provide written results of the inspection to the
property owner Document failure to notify or failure to install
according to plan - consider action against the installer
![Page 30: ENVIRONMENTAL PUBLIC HEALTH Onsite Wastewater Treatment Jim Gaughan, P.E., Environmental Engineer Bureau of Environmental Health Services](https://reader036.vdocument.in/reader036/viewer/2022062423/5697bfa81a28abf838c99144/html5/thumbnails/30.jpg)
Onsite Wastewater Summary Public Health Protection Laws Governing Onsite Sewage Systems Complaint investigation process Minimum Construction Standards Application/permit process