Enterprises or sewage systems that take soil treatment measures shall simultaneously take other pollution control measures approved by the competent authority and use them as an alternative when the soil treatment is suspended. However, this is not applicable if the wastewater or sewage is not in compliance with the effluent standard as specified in the Waste Disposal Act and may be removed to a place outside the work environment using barrels, tank trucks or other non-pipe means or ditches.

Wastewater or sewage from the sewerage of industrial wastewater or sewage shall be subject to pretreatment in conformity to the standard for soil treatment before proceeding to soil treatment.

If any of the following occurs to the sewerage of industrial wastewater or sewage, the requirements under this chapter shall be waived:
1. The excreta from animal farming have been approved by the competent authority of agriculture for recycled use in agricultural irrigation in accordance with the Regulations Governing the Recycled Use of Agricultural Wastes.
2. Permission from the competent authority of agriculture has been granted for the recycled use of liquor and fiber digestate for fertilizing in farmland.
3. Business of animal husbandry and animal excreta or bioenergy treatment center (or biogas center) approved by the competent authorities of the municipality or county (city) for the delivery or transmission of effluent of wastewater or sewage from animal husbandry conforming to applicable standards for irrigation in farmland.
4. The effluent from the sewerage of industrial wastewater or sewage other than those specified in the previous subparagraph has been approved by the competent authorities of the municipality or county (city) in conformity to applicable standards for discharge for irrigation in plantation.
5. Installation of facility with impermeable materials for isolating wastewater or sewage from contact with soil.

Enterprises or sewage systems shall set up containment facilities at the lower slope in the section of land used for soil treatment to collect and treat wastewater or sewage overflow appropriately. However, this is not applicable if no overflow occurs after treatment of the soil.

Wastewater or sewage may be drained out from the sewerage for the industrial wastewater or sewage in the duration specified in the permit for the treatment of soil from discharge of wastewater or sewage, and shall be halted temporality if any of the following situations occurs:
1. From the day on which the Central Weather Bureau announced heavy rain and rainstorm to 3 days after the warning signal is clear.
2. The conductivity of soil saturation extraction fluid is at 4μS/cm at 25°C.
3. The soil test result indicated pollution level of soil is at the upper limit of the standard.
4. The test result of underground water indicated pollution level of underground water is at the upper limit of standard. This standard is not applicable if the NH background value of underground water is higher than the upper limit of the monitoring standard of underground water pollution, and the test value of NH of underground water is lower than the background value.
If the discharge of wastewater or sewage is temporarily halted on circumstances specified from subparagraphs II to IV, present a test report to the competent authorities of the municipality or county (city) for approval, and, if approved, proceed to the discharge of wastewater or sewage into soil.

Enterprises or sewage systems that take soil treatment measures shall set up sampling points before discharging wastewater or sewage into the soil.
The sampling points referred to in the preceding paragraph shall meet the following requirements:
I. A pathway that allows the personnel of the competent authority to access to the sampling point.
II. Setup of an independent and exclusive cumulative water measurement facilities for measuring the volume of the wastewater or sewage discharged into the soil.
III. Setup of a sign marked with coordinates.
IV. Direct sampling shall be allowed. No facilities that may avoid, hinder or refuse the competent authority's direct sampling shall be set up without approval from the municipal or county (city) competent authority.
In case the competent authority finds that enterprises or sewage systems reroute the discharge or conduct non-continuous wastewater or sewage discharge designated by the competent authority, the sampling points shall be set up at the positions that the competent authority designates.
Setup of the sign referred to in Paragraph 2, Subparagraph 3, shall meet the following requirements:
I. The sign shall contain the name of the enterprise or sewage system and its control number, sampling point number, coordinate, and maximum daily discharge volume based on the contents of the approval.
II. The sign shall be more than 32cm in length and more than 15cm in width with a white background. The texts shall be black with visible fonts of 15cm or more, and no other graphics shall be added without approval. (See attached Figure 1.)
III. The sign shall be conspicuously fixed beside the sampling point at a distance between 50cm and 2m from the ground.
IV. The sign shall be made of robust material.
V. The sign shall be mounted steadily and shall not be moved easily.

• Figure 1. The billboard format for the sampling outlet or outfall.pdf
• Figure 1. The billboard format for the sampling outlet or outfall.doc