SUMP PUMP IN INSPECTION PROGRAM Presentation prepared by Sheila - PowerPoint PPT Presentation

SUMP PUMP IN INSPECTION PROGRAM Presentation prepared by Sheila Hill 1

IN INSPECTION OBJECTIVES • What is Inflow and infiltration. • Why is LMSA doing this program. • Discuss program approach and details. • Frequently asked questions. 2

WHY IS LMSA DOING A SUMP PUMP PROGRAM SUMP PUMP PROGRAMS ARE USUALLY THE MOST COST EFFECTIVE METHOD TO REDUCE INFILTRATION / INFLOW IN THE SEWER SYSTEM. BY REMOVING INFILTRATION / INFLOW IT REDUCES THE TREATMENT AND OPERATION COSTS. It helps reduce the amount of future rate increases. It reduces the risk of sanitary sewer overflows and regulatory action. It reduces the risk of sewer backups and property damage. 3

WHAT IS IS I/ I/I? I? IN INFLOW AND IN INFIL ILTRATION I/I is groundwater or stormwater that flows into the sanitary sewer system due to leaky sewer lines and manholes or from situations where stormwater can flow into the sanitary sewer system through direct connections, such as catch basins, roof drain connections or sump pump connections. Sewer systems are designed to carry waste water from toilets, bathrooms, sinks, etc. in homes and offices to the sewage treatment plant. The sewer system is designed with an estimated load capacity that it can carry. I/I can cause overloading of the sewer system, consequently causing backups and Sanitary Sewer Overflows (SSO) during heavy rain. 4

ILLUSTRATION OF INFLOW AND INFILTRATION 5

SOME SOURCES OF INFLOW & INFILTRATION INFILTRATION ROOF DRAIN • ROOT PENETRATION • BROKEN OR BROKEN CRACKED SERVICE YARD DRAIN LINE MANHOLE COVER FOUNDATION DRAIN / INFILTRATION SUMP PUMP PIPE DEFECTS STORM DRAIN • DETERIORATED MANHOLE • DETERIORATED LATERAL CONNECTION • BROKEN/CRACKED PIPE • IMPROPER JOINT CONNECTION DIRECT I/I INDIRECT I/I 6

IN INFLOW AND IN INFILTRATION EFFECTS ON LM LMSA Exceed Sewer Treatment Capacity (140,000 gpd) That Increase in Wastewater Could Result In Penalties Sewer Rate Increases Increase in Electrical Costs Treatment Costs Per The Wastewater Treatment Agreement Additional Wear on the Sanitary Sewer Infrastructure and Lift Station Upgrades Overflows (SSO) Components 7

OVERFLOW AND SEWER BACKUPS SUMP PUMP FLOWS Remaining capacity for sewer flow ✓ A typical household sump pump can pump 20 – 100 gpm. Sump Pump 4 ✓ A typical 8” sewer capacity is 350 gpm. Sump Pump 3 ✓ If you and 3 of your neighbors have Sump Pump 2 sumps that are connected to the sewer system, it potentially can take up the pipe’s capacity. Sump Pump 1 8 8

2017 Metered Wastewater Flow Data & Precipitation Comparison 8 4,500,000 4,000,000 7 3,500,000 6 3,000,000 5 2,500,000 4 2,000,000 3 1,500,000 2 1,000,000 1 500,000 0 0 January February March April May June July August September October November December Treatment 1,814,424 2,457,440 2,685,587 3,963,549 3,803,412 3,422,931 4,143,142 2,949,801 2,063,996 3,148,090 2,963,140 2,589,744 Percipitation 3.06 1.85 3.14 5.91 3.56 5.93 4.37 2.67 0.97 7.58 2.19 1.49 9

2018 Metered Wastewater Flow Data & Precipitation Comparison 5 4,500,000 4.5 4,000,000 4 3,500,000 3.5 3,000,000 3 2,500,000 2.5 2,000,000 2 1,500,000 1.5 1,000,000 1 500,000 0.5 0 0 January February March April May June July August September October November December Treatment 1,814,424 2,784,421 2,810,056 3,830,220 3,849,394 2,928,325 2,903,803 2,412,409 2,194,551 2,570,196 2,375,053 1,981,189 Percipitation 1.55 2.16 0.74 3.86 4.73 1.17 3.99 3.06 2.06 4.76 1.78 0.98 10

2019 Metered Wastewater Flow Data & Precipitation Comparison 9 5,000,000 4,500,000 8 4,000,000 7 3,500,000 6 3,000,000 5 2,500,000 4 2,000,000 3 1,500,000 2 1,000,000 1 500,000 0 0 January February March April May June July August September October November December Treatment 2,757,355 2,265,664 2,949,727 4,656,256 4,489,177 3,722,115 4,133,184 3,230,062 3,730,134 3,914,897 3,251,732 4,306,950 Percipitation 3.26 2.67 2.39 2.84 4.4 4.7 2.91 2.65 7.73 5.63 3.24 3.21 11

CONSEQUENCES OF EXCESSIVE I/I • Increased wastewater treatment costs • Increased operation costs • Potential health risks • Property damage • Potential environmental consequences • Regulatory actions 12

KEY ASPECTS TO LMSA REGULATIONS AND IL ILLEGAL CONNECTIONS Connections of Certain Drains are Prohibited. No Person shall make connection of roof downspouts, exterior footing or foundation drains, areaway drains, storm drains, sump pumps, or other point of entry of surface runoff or groundwater to a Building Sewer or Building Drain which in turn is connected directly or indirectly to the Public Sewer System. Inspection. Any house, building, or structure receiving sanitary sewer service shall, at all reasonable hours be subject to inspections by duly authorized personnel of the LMSA. Written Notice of Violation. Except for violations of Section 11.A hereof, any person violating any provision of these Regulations may be served with written notice stating the nature of the violation and providing a reasonable time limit for the satisfactory correction thereof. The offender shall, within the period of time stated in such notice, permanently cease all violations as determined by the LMSA. However, proceedings to enforce these Regulations may be commenced without such written notice. Penalties: Violation Declared Nuisance . Any person who violates any of the provisions of these Regulations shall be deemed to be responsible for a municipal civil infraction as defined by Michigan Statute which shall be punishable by a civil fine of not less than $100 nor more than $500 for the first offense and not less than $200 nor more than $1,000 for subsequent offenses. 13 13

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THE INSPECTION Completed in under 30 minutes, Adult must be present. Inspectors looks at: many under 15 minutes. Sump pumps Roof drains Floor drains Site grading Occupant and inspector signs the inspection form. Notice of Violation 16 16

SAMPLE OF INS INSPECTION RE REPORT 17 17 17

SCHEDULING AND WEBSITE INFORMATION • All inspections are scheduled, no door-to-door inspections. • Scheduling is fast and easy. • Schedule your inspection today by calling the LMSA office at 231-775-0155. • Further information about the Sump Pump Program can be found at www.lakemitchellsewer.com 18 18