SB 985, as introduced, Pavley. Stormwater resource planning.
Existing law, the Stormwater Resource Planning Act, authorizes a city, county, or special district, to develop a stormwater resource plan that meets certain standards.
This bill would require a stormwater resource plan to identify opportunities to use existing publicly owned lands to capture and reuse stormwater.
Vote: majority. Appropriation: no. Fiscal committee: no. State-mandated local program: no.
The people of the State of California do enact as follows:
Section 10561 of the Water Code is amended to
2read:
The Legislature hereby finds and declares all of the
4following:
5(a) In many parts of the state stormwater isbegin delete aend deletebegin insert an underutilizedend insert
6 source of surface water and groundwaterbegin insert supplies. Instead of being
7viewed as a resource, it is often seen as a source ofend insert contamination,
8contributing to a loss of usable water suppliesbegin delete,end delete and the pollution
9and impairment of rivers, lakes, streams, and coastal waters.
10(b) Improved management of stormwaterbegin delete, including, but not
11limited to,
pollution prevention and source control,end delete
P2 1water quality and increase water supplies for beneficial uses and
2the environment.
3(c) Most of California’s current stormwater drainage systems
4are designed to capture and convey water away from people and
5property rather than capturing that water for beneficial uses.
6(d) Historical patterns of precipitation are predicted to change
7and an increasing amount of California’s water is predicted to fall
8not as snow in the mountains, but as rain in other areas of the state.
9This will likely have a profound and transforming effect on
10California’s hydrologic cycle and much of that water will no longer
11be captured by California’s reservoirs, many of which are located
12to capture snow melt.
13(e) Stormwater, properly managed, can contribute significantly
14to local water
supplies through onsite storage and reuse, or letting
15it percolate into the ground to recharge groundwater, thereby
16increasing available supplies of drinking water.
17(f) New developments and redevelopments should be designed
18to be consistent with low-impact development principles to improve
19the retention, reuse, and percolation of stormwater onsite.
20(g) Stormwater can be managed to achieve environmental and
21societal benefits such as wetland creation, riverside habitats,
22instream flows, and an increase in urban green space.
23(h) Stormwater management through multiobjective projects
24can achieve additional benefits, including augmenting recreation
25opportunities for communities, increased tree canopy, reduced
26urban heat island effect, and improved air quality.
Section 10562 of the Water Code is amended to read:
(a) A city, county, or special district, either individually
29or jointly, may develop a stormwater resource plan pursuant to
30this part.
31(b) Stormwater resource plans shall:
32(1) Be developed on a watershed basis.
33(2) Provide for multiple benefit project design to maximize
34water supply, water quality, and environmental and other
35community benefits.
36(3) Provide for community participation in plan development
37and implementation.
38(4) Be consistent with, and assist in, compliance with total
39maximum daily load (TMDL)
implementation plans and applicable
40national pollutant discharge elimination system (NPDES) permits.
P3 1(5) Be consistent with all applicable waste discharge permits.
2(6) Be consistent with any applicable integrated regional water
3management plan.
4(c) The proposed or adopted plan shall meet the standards
5outlined in this section. The plan need not be referred to as a
6“stormwater resource plan.” Existing planning documents may be
7utilized as a functionally equivalent plan, including, but not limited
8to, watershed management plans, integrated resource plans, urban
9water management plans, or similar plans. If a planning document
10does not meet the standards of this section, a collection of local
11and regional plans may constitute a functional equivalent.
12(d) Stormwater resource plans shall identify all of the following:
13(1) Opportunities to augment local water supply through
14groundwater recharge or storage for beneficial reuse of stormwater.
15(2) Opportunities for source control for both pollution and
16stormwater runoff volume, onsite and local infiltration, and reuse
17of stormwater.
18(3) Projects to reestablish natural water drainage treatment and
19infiltration systems, or mimic natural system functions to the
20maximum extent feasible.
21(4) Opportunities to develop or enhance habitat and open space
22through stormwater management, including wetlands, riverside
23habitats, parkways, and parks.
24(5) Opportunities to use existing publicly owned lands,
25including, but not limited to, parks, school sites, and government
26office buildings and complexes, to capture and reuse stormwater.
27(5)
end delete
28begin insert(end insertbegin insert6)end insert Design criteria and best management practices to prevent
29stormwater pollution and increase effective stormwater
30management for new and upgraded infrastructure and residential,
31commercial, industrial, and public development. These design
32criteria and best management practices shall accomplish
all of the
33following:
34(A) Reduce effective impermeability within a watershed by
35creating permeable surfaces and directing stormwater to permeable
36surfaces, retention basins, cisterns, and other storage for beneficial
37reuse.
38(B) Increase water storage for beneficial use through a variety
39of on-site storage techniques.
P4 1(C) Increase groundwater supplies through infiltration, where
2appropriate and feasible.
3(D) Support low-impact development for new and upgraded
4infrastructure and development using low-impact techniques.
5(6)
end delete
6begin insert(end insertbegin insert7)end insert Activities that generate or contribute to the pollution of
7stormwater, or that impair the effective beneficial use of
8stormwater.
9(7)
end delete
10begin insert(end insertbegin insert8)end insert Projects and programs to ensure the effective implementation
11of the stormwater resource plan pursuant to this part and achieve
12multiple benefits.
13(8)
end delete
14begin insert(end insertbegin insert9)end insert Ordinances or other mechanisms necessary to ensure the
15effective implementation of the stormwater resource plan pursuant
16to this part.
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