Sewer Bypass Pumping Setup Inspection Checklist

Visually inspect all HDPE fusion welds for complete bead formation and absence of cracks or voids. (ASTM F2620)

Verify that all newly fused HDPE joints have passed the required pressure test (typically 1.5 times operating pressure for 2 hours). Document test results.

Confirm that HDPE pipe supports are spaced according to the manufacturer's recommendations (typically 8-10 feet for larger diameter pipe) to prevent sagging and stress on joints.

Check that the bypass piping is adequately anchored to prevent movement due to hydraulic forces, especially at bends and connections.

Inspect all pipe joints and connections for leaks. Address any leaks immediately to prevent spills and environmental contamination.

Verify proper bedding (sand or gravel) under the HDPE pipe to prevent damage from rocks or uneven surfaces. (AWWA M55)

Confirm that the HDPE fusion machine is calibrated per manufacturer's specifications and calibration records are available.

Ensure that all bypass piping is clearly labeled with flow direction and contents (e.g., 'Raw Sewage Bypass').

Assess if the bypass piping is adequately protected from vehicular traffic or other potential damage sources (e.g., barriers, signage).

Check for adequate expansion loops or flexible couplings to accommodate thermal expansion and contraction of the HDPE pipe.

Measure and record the suction lift of each bypass pump. Ensure it is within the pump manufacturer's recommended limits to prevent cavitation.

Monitor and record the discharge pressure of each bypass pump. Note any significant fluctuations that could indicate a problem.

Measure and record the flow rate of each bypass pump. Compare to the required flow rate to ensure adequate bypass capacity.

Verify that each bypass pump has adequate secondary containment (e.g., lined berm) to contain any spills or leaks.

Check the fuel level of each bypass pump and ensure an adequate supply for continuous operation. Document fuel levels.

Check the oil level of each bypass pump and add oil as needed. Document oil levels.

Listen for unusual noises or vibrations from each bypass pump. Investigate and correct any issues promptly.

If equipped, test the automatic start/stop function of the bypass pumps to ensure proper operation in case of power failure or high-level alarm.

Inspect the pump suction screen for debris buildup and clean as needed to prevent pump cavitation and reduced flow.

Record the operating hours of each pump daily. Use this data for preventative maintenance scheduling.

Inspect the area around the pump discharge for erosion or washouts. Implement erosion control measures as needed.

Verify that a valid confined space entry permit is in place before any manhole entry. (OSHA 1910.146)

Test the atmosphere in the manhole for oxygen levels (19.5-23.5%), flammable gases (less than 10% LEL), and toxic gases (H2S, CO) before entry and continuously during occupancy. (OSHA 1910.146)

Ensure that the manhole is adequately ventilated with a blower to remove hazardous atmospheres. (OSHA 1910.146)

Confirm that a trained attendant is stationed outside the manhole to monitor entrants and provide assistance if needed. (OSHA 1910.146)

Verify that appropriate rescue equipment (harness, lifeline, retrieval device) is available and in good working order at the manhole entry point. (OSHA 1910.146)

Ensure that fall protection measures (e.g., manhole guardrail, safety net) are in place to prevent falls into the manhole. (OSHA 1926.501)

Establish a clear communication system (e.g., two-way radio) between the entrant and the attendant. (OSHA 1910.146)

Provide adequate lighting at the manhole entry point and inside the manhole. (OSHA 1910.146)

Ensure that the manhole is properly barricaded to prevent unauthorized access. (OSHA 1926.200)

Verify that the gas monitor used for atmospheric testing is calibrated and bump tested daily. (Manufacturer Specs)

Implement Lockout/Tagout procedures for any equipment that could pose a hazard to entrants (e.g., upstream pumps). (OSHA 1910.147)

Maintain a clean and organized work area to prevent trips, slips, and falls. (OSHA 1926.25)

Implement erosion control measures to prevent soil erosion and sedimentation of waterways. (EPA Regulations)

Establish a traffic control plan to protect workers from vehicular traffic. (MUTCD)

Provide adequate lighting for all work areas, especially during nighttime operations. (OSHA 1926.56)

Review the site-specific emergency response plan with all personnel. (OSHA 1910.38)

Ensure that a first-aid kit is readily available and adequately stocked. (ANSI Z308.1)

Verify that fire extinguishers are readily accessible and inspected monthly. (NFPA 10)

Establish a reliable communication system (e.g., two-way radios, cell phones) for all personnel. (Best Practice)

Implement security measures to prevent unauthorized access to the site. (Best Practice)

Monitor weather conditions and adjust work activities as needed to ensure safety. (Best Practice)