Technical Sustainability Indiana Regional Sewer District Association October 26, 2015 Joe Tierney

Sustainability “Sustainability is the capacity to endure” “Technical Sustainability for RSD means using BMPs for utility management combined w/current technologies to get the most out of your utility system.”

What is Sustainability? Sustainability SocietyEconomyEnvironment Maintain what you have. Minimize what you build.

IRSDA Mission Be supportive and share Information that : Protects the Environment Protects Public Health Supports Economic Development Provides a Public Convenience

Stakeholder Support Service Quality Customer Satisfaction Staff Development Operational Optimization Operational Resiliency Infrastructure Stability Financial Viability Community Sustainability Economic Develop. Water Resource Adequacy Sustainably Managed Utility

Stakeholder Understanding and Support (SS) – Customers, regulators, community Service Quality (SQ) – Meet regulations, public health, ecological needs Customer Satisfaction (CS) – Reliable, responsive, affordable Staff Development (SD) – Competent, motivated, adaptive workforce Operational Optimization (OO) – Ongoing, timely, cost-effective, reliable, sustainable

Sustainably Managed Utility Operational Resiliency (OR) – Leadership & staff working together Infrastructure Stability (IS) – Understand condition & costs of critical infrastructure Financial Viability (FV) – Life cycle cost, balance debt, assets, O & M, revenues Community Sustainability (CS) – Long-term watershed, community health & welfare &ED Water Resource Adequacy (WA) – Protect Watershed & meet current & future sanitation needs

Service Quality and Regulatory Compliance Permits & Compliance – IDEM, IDNR, INDOT, Rule 5 – NPDES, Land App. Stormwater – MRO & Overflow reports – Safety/ OSHA Engineering & Construction Standards Stay current w/ regulations

Customer Satisfaction Utility Services – Reliable – Responsive – Affordable – Interaction w/Stakeholders – Request & receive customer feedback

Staff Development & Stakeholder Support People are assets too! Recruit & Retain Resource of system knowledge & history Licensing & certifications Career enhancements Training & Safety programs Personal relationships

Infrastructure Stability System Inventory & Mapping Conditional Assessments Preventive Maintenance Capital Improvement Plans Energy Planning

Infrastructure Stability “you need to know your system” Inventory & Mapping – Traditional As-Builts – GIS system – Google Earth Conditional Assessments – Equipment inspections – In-situ- video inspections of pipe systems

Infrastructure Stability “Preventive Maintenance & Planning go together” Preventive Maintenance – Clean & flush sewers – Protective coatings – Pump & equipment service – Maximize efficiency & service life & reduce $$

Infrastructure Stability “Preventive Maintenance & Planning go together” Capital Improvement plans – Identify system needs – Identify new technologies – Anticipate regulatory changes – Estimate future OM&R requirements – Estimate energy savings with new technology investments – Life cycle cost comparisons

Infrastructure Stability “Energy is a big part of annual operations cost”

Technical Sustainability Examples

Collection System “maintain what you have” Leaky sewers cost $$ Excessive I/I – Steals capacity – Causes SSOs – Triggers regulatory actions Sewer rehabilitation – Cured-in-place pipe (CIPP) – Green alternative Reduces I/I Adds capacity, customers & revenue Extends service life

Green Alternatives Why Should You Care? Sustainability incentive SRF interest reduction up to 0.5% Improved ranking I/I for energy reduction Lighting SCADA VFDs Life cycle cost analysis PV = $1,000, % vs. 3.50% Annual savings $10, yr savings $201,334

Pumping VFDs for flow control and energy savings Jockey pump w/big pump Protective coatings for structures Back-up generators – Fuel types natural gas, diesel

Plant Examples Cost savings – Energy – Chemicals – Maintenance Back-up power sources

Plant Examples Natural lighting & Building lights Instrumentation Building insulation Sludge recycle/reuse Low mow grasses

D.O. Probes & VFDs for Blowers 0.4 MGD EA WWTP energy cost savings CurrentProposed Yr-1 blower = $47kYr-1 blower = $25k Yr-20 blower = $125KYr-20 blower = $67k Total 20-yr = $1.69 MTotal 20-yr = $908k Total savings $782k Payback period 11 years

Phosphorus treatment Chemical savings ChemicalBiological w/chemical backup On-going cost increasesProcess & operations adjustments Add. sludge generationNew equipment & tankage Long-term cost estimates Reduced chemical usage & sludge generation Compare Capital & annual costs Estimate payback period

U.V. equipment upgrades New technology Old equipment High energy use Manual cleaning High labor New equipment Lower energy use Self cleaning Low labor

Adequate Utility Rates “none of this is possible without adequate rates” Labor & energy cost increase / inflation Aging system maintenance Repairs & replacements New regulations Capital improvements Periodic rate adjustments

Technical Sustainability Summary Stay current w/ rules & regulations Customer satisfaction Staff & Stakeholder support Know your system Preventive maintenance & planning Sufficient rates & charges

Reference Sources Institute for Sustainable Infrastructure (ISI) – sustainableinfrastructure.org – envision rating sheet USDA Rural Development – water.epa.gov/infrastructure LEED – Leadership in Energy & Environmental Design State Revolving Fund Loan program Green Project Reserve / Sustainability Incentive Fact Sheet –

Check Up Program for Small Systems (CUPSS) 16,000 ww systems – 70% serve < 10,000 pop 134,000 dw systems serve < 3300 population

References

Questions? Contact Information Joe Tierney