2. Flush toilets connected to a septic tank constructed in accordance with this Chapter:

3. any approved type pit privy built in accordance with this Chapter;and

4. Any disposal device approved by the Secretary or his duly authorized representative.

j. Privy - A structure which id not connected to a sewerage system and is used for the reception, disposition and storage of feces or other excreta from the human
body.

k.Septic privy where the fecal matter is placed in a septic tank containing water and connected to a drain field but which is not served by a water supply under
pressure.

l. Box and can privy - A privy where fecal matter is deposited in a can bucket which is removed for emptying and cleaning.

m. Concrete vault privy - A pit privy with the pit lined with concrete in such manner as to make it water tight.

n. Chemical privy - A privy where fecal matter is deposited into a tank containing a caustic chemical solution to prevent septic action while the organic matter is
decomposed.

Sec. 72. Scope of Supervision of the Department. -  The approval of the Secretary or his duly authorized representative is required in the following matters:

a. Construction of any approved type of toilet for every house including community toilet which may be allowed for a group of small houses of light materials or
temporary in nature;

b. Plans of individual sewage disposal system and the sub-surface absorption system, or other treatment device;

c. Location of any toilet or sewage disposal system in relation to a source of water supply;

d. Plans, design data and specifications of a new or existing sewerage system or sewage treatment plant;

e. The discharge of untreated effluent of septic tanks and or sewage treatment plants to bodies of water;

f. Manufacture of septic tanks; and

g. Method of disposal of sludge from septic tanks or other treatment plants.

Sec. 73. Operation of Sewage Treatment Works. - Private or public sewerage systems shall:

a. Provide laboratory facilities for control tests and other examinations needed;

b. Forward to the local health authority in case of breakdown or improper functioning of the sewage treatment works;

c. Inform the local health authority in case of breakdown or improper functioning
of the sewage treatment work; and

d. Provide for the treatment of all sewage entering the treatment plant.

Sec. 74. Requirements in the operation of Sewerage Works and Sewage Treatment Plants. - The following are required for sewerage works and sewage treatment
plants:

a. All houses covered by the system shall be connected to the sewer in areas where a sewerage system is available.

b. Outfalls discharging effluent from a treatment plant shall be carried to the channel of the steam or to deep water where the outlet is discharged.

c. Storm water shall discharged to a storm sewer, sanitary sewage shall be discharged to a sewerage only; but this should not prevent the installation of a
combined system.

d. Properly designed grease traps shall be provided for sewers from restaurants or other establishments where the sewerage carries a large amount of grease.

Sec. 75. Septic Tanks. - Where a public sewerage system is not available, sewer outfalls from residences, schools, and other building s shall discharged into a
septic tank to be constructed in accordance with the following minimum requirements:

a. It shall be generally rectangular in shape. When a number of compartments are used, the first compartment shall have the capacity from one-half to two-thirds of
the total volume of the tank.

b. It shall be built of concrete, whether pre-cast or poured in place. Brick,concrete blocks or adobe may be used.

c. It shall not be constructed under any building and within 25 meters from any source of water supply.
Office Address :
819 Antonio
Maceda St
  Sampaloc, Manila
  Philippines