OBC 2006 › Division B
8.7.5.3.
Version 1 — in force 1 January 2010
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- Edition
- OBC_2006
- Division
- B
- Provision
- 8.7.5.3.
- Version
- v1
240. (1) Subject to subsections (2), (3), (4), (5), (6) and (7), this Regulation comes into force on the later of January 1, 2010 and the day this Regulation is filed.
Read directly from the regulation's own commencement section.
O. Reg. 503/09 · commencement 240(1)
This version stayed in force until the next edition replaced it. What follows is that edition’s base regulation’s commencement — the takeover that ended this one.
(1) Subject to Sentences (2) and (3), this Regulation comes into force on January 1, 2014.
Read directly from the regulation's own commencement section.
O. Reg. 332/12 · commencement 4.4.1.1(1)
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Tell us what is wrong and we will verify & correct our mapping.
- Edition
- OBC_2006
- Division
- B
- Provision
- 8.7.5.3.
- Version
- v1
240. (1) Subject to subsections (2), (3), (4), (5), (6) and (7), this Regulation comes into force on the later of January 1, 2010 and the day this Regulation is filed.
Read directly from the regulation's own commencement section.
O. Reg. 503/09 · commencement 240(1)
This version stayed in force until the next edition replaced it. What follows is that edition’s base regulation’s commencement — the takeover that ended this one.
(1) Subject to Sentences (2) and (3), this Regulation comes into force on January 1, 2014.
Read directly from the regulation's own commencement section.
O. Reg. 332/12 · commencement 4.4.1.1(1)
Provenance
OBC 1997 · continues from 8.7.5.3. — Pro
Base · O. Reg. 350/06 · ext v0 →
O. Reg. 503/09, cl. 122 · ext ← current
In force 2010-01-01
OBC 2012 · continues as 8.7.5.3. — Pro
8.7.5.3. — Construction Requirements
Comparing versions
Changed text stands out · unchanged is dimmed
v0 base
Earlier · 2006-12-31(1) Sentences 8.7.4.2.(1), (2) and (4) to (11) apply to the construction of a filter bed.
(2) The lines of distribution pipe shall be evenly spaced over the surface of the filter medium to which the sanitary sewage is applied.
(3) The filter medium shall have a minimum depth of 750 mm below the stone layer and shall be clean sand comprised of particles ranging in size between the limits of,
(a) an effective size of 0.25 mm with a uniformity coefficient not less than 3.5,
(b) an effective size of 2.5 mm with a uniformity coefficient not greater than 1.5, and
(c) having a uniformity coefficient not greater than 4.5.
(4) The filter medium shall be unsaturated for its entire depth.
(5) Where there is more than one filter bed in a leaching bed, the filter beds shall be separated by at least 5 m between the distribution pipes of the filter beds.
(6) The base of the filter medium shall extend to a thickness of at least 250 mm over an area meeting the requirements of the following formula:
where,
A = the area of contact in square metres between the base of the filter medium and the underlying soil,
Q = the total daily design sanitary sewage flow in litres, and
T = the lesser of 50 and the percolation time of the underlying soil.
(7) The stone layer required by Clause 8.7.3.3.(1)(b) shall be not less than 900 mm above the high ground water table, rock or soil with a percolation time more than 50 minutes,
v1 O. Reg. 503/09
Later · viewing · 2010-01-01(1) Sentences 8.7.4.2.(1), (2) and (4) to (11) apply to the construction of a filter bed.
(2) The lines of distribution pipe shall be evenly spaced over the surface of the filter medium to which the sanitary sewage is applied.
(3) The filter medium shall have a minimum depth of 750 mm below the stone layer and shall be clean sand comprised of particles ranging in size between the limits of,
(a) an effective size of 0.25 mm with a uniformity coefficient not less than 3.5,
(b) an effective size of 2.5 mm with a uniformity coefficient not greater than 1.5, and
(c) having a uniformity coefficient not greater than 4.5.
(4) The filter medium shall be unsaturated for its entire depth.
(5) Where there is more than one filter bed in a leaching bed, the filter beds shall be separated by at least 5 m between the distribution pipes of the filter beds.
(6) The base of the filter medium shall extend to a thickness of at least 250 mm over an area meeting the requirements of the following formula:
where,
A = the area of contact in square metres between the base of the filter medium and the underlying soil,
Q = the total daily design sanitary sewage flow in litres, and
T = the lesser of 50 and the percolation time of the underlying soil.
(7) The stone layer required by Clause 8.7.3.3.(1)(c) shall be not less than 900 mm above the high ground water table, rock or soil with a percolation time more than 50 minutes,
Provenance
OBC 1997 · continues from 8.7.5.3. — Pro
Base · O. Reg. 350/06 · ext v0 → comparing ×
O. Reg. 503/09, cl. 122 · ext ← current
In force 2010-01-01
OBC 2012 · continues as 8.7.5.3. — Pro