Current through Register Vol. 48, No. 39, March 25, 2024
Subpart 1.
Section 1602.1.
UPC section 1602.1 is amended to read as follows:
1602.1
General. The
installation, construction, alteration, and repair of rainwater catchment
systems intended to supply uses such as water closets, urinals, trap primers
for floor drains and floor sinks, industrial processes, water features, vehicle
washing facilities, cooling tower makeup, and similar uses shall be approved by
the commissioner.
Subp.
2.
Section 1602.2.
UPC section 1602.2 is amended to read as follows:
1602.2
Plumbing Plan Submission.
No permit for a rainwater catchment system shall be issued until complete
plumbing plans have been submitted and approved by the commissioner in
accordance with Minnesota Rules, part
1300.0215, subpart 6.
Subp. 3.
Section
1602.4.
UPC section 1602.4 is amended to read as follows:
1602.4
Connections to Potable or
Reclaimed (Recycled) Water Systems. Rainwater catchment systems shall
have no direct connection to a potable water supply or alternate water source
system. Potable or reclaimed (recycled) water is permitted to be used as makeup
water for a rainwater catchment system provided the potable or reclaimed
(recycled) water supply connection is protected by an air gap or
reduced-pressure principle backflow preventer in accordance with this code. An
automatic means to supply the rainwater catchment system with makeup water
shall be installed when there is insufficient rainwater to meet the required
demand or due to system failure.
Subp. 4.
Section 1602.5.
UPC section 1602.5 is amended to read as follows:
1602.5
Initial Cross-Connection
Test. Where a portion of a rainwater catchment system is installed
within a building, a cross-connection test is required in accordance with
section 1605.3, as amended. Before the building is occupied or the system is
activated, the plumbing contractor shall perform the initial cross-connection
test in the presence of the Authority Having Jurisdiction. The test shall be
ruled successful before final approval is granted.
Subp. 5.
Section 1602.7.
UPC section 1602.7 is amended to read as follows:
1602.7
Rainwater Catchment System
Materials. Rainwater catchment system materials shall comply with
sections 1602.7.1 through 1602.7.4.
1602.7.1
Water Supply and Distribution Materials. Rainwater catchment water
supply and distribution materials shall comply with Chapter 6, as amended in
this code, and the requirements of this code for potable water supply and
distribution systems, unless otherwise provided for in this section.
1602.7.2
Rainwater Catchment System
Drainage Materials. Materials used in rainwater catchment drainage
systems, including gutters, downspouts, conductors, and leaders shall be in
accordance with Chapter 11, as amended in this code, and the requirements of
this code for storm drainage.
1602.7.3
Storage Tanks.
Rainwater storage tanks shall comply with section 1603.1, as amended in this
code.
1602.7.4
Collection
Surfaces. The collection surface shall be constructed of a hard,
impervious material.
Subp.
6.
Section 1602.9.
UPC sections 1602.9.3 and 1602.9.5 are amended to read as
follows:
1602.9.3
Collection
Surfaces. Rainwater catchment systems shall collect rainwater only from
roof surfaces. Rainwater catchment systems shall not collect rainwater from:
(1) vehicular parking surfaces;
(2) surface water runoff;
(3) bodies of standing water; or
(4) similar nonroof
surfaces.
1602.9.5
Prohibited Discharges. Overflows and bleed-off pipes from
roof-mounted equipment and appliances, condensate, and other waste disposal
shall not discharge onto roof surfaces that collect rainwater for rainwater
catchment systems.
Subp.
6a.
Subsection 1602.9.4.
UPC subsection 1602.9.4 is deleted in its
entirety.
Subp. 7.
Section 1602.9.
UPC section 1602.9.6 is amended to read as follows:
1602.9.6
Minimum Water Quality.
The minimum water quality for rainwater catchment systems shall meet the
applicable water quality recommendations in Table 1602.9.6.
Subp. 8.
Table
1602.9.6.
UPC Table 1602.9.6 is amended to read as follows:
TABLE 1602.9.6 |
Measure |
Limit |
E. coli (MPN/100 mL) |
2.2 |
Odor |
Non-offensive |
Temperature (degrees Celsius) |
MR |
Color |
MR |
pH |
MR |
MR = measured and recorded only
Treatment:
100-micron or smaller filter
Minimum 3.5-log reduction of bacteria