The Idaho Department of Environmental Quality Mark Mason, P.E., Engineering Manager Idaho DEQ - Boise Regional Office 1445 North Orchard Boise, ID tel fax

Infrastructure Requirements Drinking Water – Source, treatment, distribution Wastewater – Collection, treatment, disposal Septic Systems – Individual, Community, Large Soil Absorption Systems

General Requirements - Process Rules and Guidance: Take the time to read it all first! – 8/58index.htm - link to all DEQ rules on Dept. of Admin. websitehttp://adm.idaho.gov/adminrules/rules/idapa5 8/58index.htm – ss/engineers/checklists.cfm - submittal checklistshttp:// ss/engineers/checklists.cfm

General Requirements - Process Rules and Guidance - continued – rinking_water/overview.cfm - Drinking Water Program overviewhttp:// rinking_water/overview.cfm – waste_water/overview.cfm - Wastewater Program overviewhttp:// waste_water/overview.cfm

General Requirements - Process 1.Facilities Planning Study – required DEQ review and approval. 2.Preliminary Engineering Report - required DEQ review and approval. 3.Engineering Design Plans and Specifications - required DEQ review and approval. 4.Record Documents – required submittal

General Requirements - Process Lifting Sanitary Restrictions –All mechanical portions of drinking water and wastewater systems must be constructed and operational prior to lifting sanitary restrictions. –Water and sewer piping must have designs approved by DEQ prior to lifting sanitary restrictions.

General Requirements - Process Other Requirements also can apply – read the rules and then call for assistance –Permits – Septic (HD), Reuse (DEQ), NPDES (EPA) –Water Quality Impact Analyses (NP) –Well site approvals, water quality testing,… –Technical, Financial and Managerial documentation –Operation and Maintenance Manuals

Drinking Water Sources / Treatment Surface Water: –DEQ Drinking Water Rules –Surface Water Treatment Rule –Slow Sand Filters –Rapid Sand Filters –Pressure Filters –Disinfection and disinfection by-product rule

Drinking Water Sources / Treatment Wells: –DEQ Drinking Water rules –Groundwater under the direct influence of surface water (GWUDI) –Arsenic, Nitrate, Uranium… –Disinfection and disinfection by-product rule

Drinking Water Sources / Treatment Springs: –DEQ Drinking Water Rules –Groundwater under the direct influence of surface water (GWUDI) –Potential to seal and use Spring Box –Arsenic, Nitrate, Uranium… –Disinfection and disinfection by-product rule

Drinking Water Distribution DEQ Drinking Water Rules –Fire flows? –Redundancy (largest source out of service, standby power,…) –Lead, copper rule

Wastewater Collection DEQ Wastewater Rules –New systems –Simple extensions of gravity sewers –Lift stations

Wastewater Treatment Lagoons –Primary and secondary treatment Mechanical (secondary) treatment –Activated sludge –Trickling filters –Sequencing Batch Reactors (SBRs)

Wastewater Treatment Tertiary treatment –Filtration MBRs = membrane bioreactors Other filtration technologies (sand, cloth) –Disinfection Chlorine Ultra-violet light

Wastewater Disposal Discharge to Surface Water – NPDES permit required from EPA; 401 certification required from DEQ Total Containment Lagoons: not applicable everywhere Land Application / Reuse: DEQ permit required

Reuse Highly treated effluent (Reclaimed Water) a58/0117.pdf - link to “Reuse Rules” a58/0117.pdf –Class A: groundwater recharge; residential landscape irrigation (zero buffer distances); toilet flushing; dust control; –Class B: rapid infiltration basins; landscape irrigation (parks, schools, golf courses…) with buffer distances; toilet flushing; dust control;

Septic Systems Individual Systems Central Systems Large Soil Absorption Systems

Individual Septic Systems Health Department jurisdiction

Central Septic Systems Sizing: >2500 gpd; waste from two dwellings or building under separate ownership Health Department jurisdiction DEQ assistance

Large Soil Absorption Systems (LSAS) Sizing: > 2500 gpd in 2500 gpd modules (can be one building) Health Department jurisdiction DEQ engineering assistance

Solid Waste Rules – 8/58index.htm - link to all DEQ rules on Dept. of Admin. websitehttp://adm.idaho.gov/adminrules/rules/idapa5 8/58index.htm – 8/0106.pdf - Solid Waste Management Ruleshttp://adm.idaho.gov/adminrules/rules/idapa5 8/0106.pdf –40 CFR part 258 – minimum requirement –If Ground Water contamination is detected, go to full Subtitle D requirements

Solid Waste Municipal Solid Waste –Small Exempt Landfills (exempt from design and GW monitoring) < 20 tons per day < 25 inches precip per year Other –Site Certification –“Arid” design (allowed in Idaho) < 25 inches precip per year Other requirements

Solid Waste –Liner requirements –Leachate collection requirements –Cover requirements – soil or subtitle D –Operational reporting requirements – HD –Ground Water reporting - DEQ

Questions??