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

1

Presentation prepared by Sheila Hill

SUMP PUMP IN INSPECTION PROGRAM

2

IN INSPECTION OBJECTIVES

• What is Inflow and infiltration.
• Why is LMSA doing this program.
• Discuss program approach and

details.

• Frequently asked questions.

3

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.

4

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

• ffices to the sewage treatment plant.

The sewer system is designed with an estimated load capacity that it can carry. I/I can cause

• verloading of the sewer system, consequently causing backups and Sanitary Sewer Overflows (SSO)

during heavy rain.

5

ILLUSTRATION OF INFLOW AND INFILTRATION

6

SOME SOURCES OF INFLOW & INFILTRATION

ROOF DRAIN YARD DRAIN STORM DRAIN FOUNDATION DRAIN / SUMP PUMP BROKEN MANHOLE COVER

INFILTRATION

PIPE DEFECTS

• DETERIORATED

MANHOLE

• DETERIORATED LATERAL

CONNECTION

• BROKEN/CRACKED PIPE
• IMPROPER JOINT

CONNECTION

INFILTRATION

• ROOT

PENETRATION

• BROKEN OR

CRACKED SERVICE LINE

DIRECT I/I INDIRECT I/I

7

IN INFLOW AND IN INFILTRATION EFFECTS ON LM LMSA

Increase in Wastewater Treatment Costs

Exceed Sewer Treatment Capacity (140,000 gpd) That Could Result In Penalties Per The Wastewater Treatment Agreement

Sewer Rate Increases Increase in Electrical Costs Sanitary Sewer Overflows (SSO)

Additional Wear on the Infrastructure and

Components Lift Station Upgrades

8

SUMP PUMP FLOWS

✓ A typical household sump pump can pump 20 – 100 gpm. ✓ A typical 8” sewer capacity is 350 gpm. ✓ If you and 3 of your neighbors have sumps that are connected to the sewer system, it potentially can take up the pipe’s capacity.

8

Sump Pump 1 Sump Pump 2 Sump Pump 3 Sump Pump 4

Remaining capacity for sewer flow

OVERFLOW AND SEWER BACKUPS

9

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 1.49 500,000 1,000,000 1,500,000 2,000,000 2,500,000 3,000,000 3,500,000 4,000,000 4,500,000 1 2 3 4 5 6 7 8

2017 Metered Wastewater Flow Data & Precipitation Comparison

10

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 0.98 500,000 1,000,000 1,500,000 2,000,000 2,500,000 3,000,000 3,500,000 4,000,000 4,500,000 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

2018 Metered Wastewater Flow Data & Precipitation Comparison

11

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 3.21 500,000 1,000,000 1,500,000 2,000,000 2,500,000 3,000,000 3,500,000 4,000,000 4,500,000 5,000,000 1 2 3 4 5 6 7 8 9

2019 Metered Wastewater Flow Data & Precipitation Comparison

12

• Increased wastewater treatment

costs

CONSEQUENCES OF EXCESSIVE I/I

• Potential health risks
• Increased operation costs
• Property damage
• Regulatory actions
• Potential environmental consequences

13 13

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.

14 14 14

15 15 15

16 16

THE INSPECTION

Completed in under 30 minutes, many under 15 minutes. Adult must be present. Inspectors looks at:

Sump pumps Roof drains Floor drains Site grading Occupant and inspector signs the inspection form. Notice of Violation

17 17

SAMPLE OF INS INSPECTION RE REPORT

17

18 18

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
• ffice at 231-775-0155.
• Further information about the Sump Pump Program

can be found at www.lakemitchellsewer.com