(to ensure that the quality of the effl uent meets the given standard (4) Participate in major projects of the Kaohsiung City Government on recycling of municipal wastewater and effl uent from industrial zones (1) Select experienced subcontractors for high-risk maintenance work (2) Carry out scaffolding skill evaluation tests; only persons who pass the test can participate in the construction (3) Report high-risk construction items every day and request external safety inspection personnel to enhance the inspection of individual high-risk construction areas (4) Submit the “Safety and Health Management Plan” according to TOSHMS/OHSAS 18001 before construction commences.