The document discusses California's efforts to regulate stormwater runoff from new construction projects using a watershed management approach. It acknowledges the challenges of population growth putting pressure on water resources. Low impact development techniques are promoted to mimic natural hydrologic processes and protect water quality. However, over-engineered solutions risk overlooking soils and overall watershed health. The regulatory framework is continuing to evolve from a focus on runoff volume to consideration of additional hydrologic factors and outcomes related to beneficial uses.
Recent presentation on assessing how U.S. Fish and Wildlife Service Hurricane Sandy Resilience projects will improve community and ecosystem resilience to sea level rise, storm events and other threats. Presentation highlights development of ecological and socio-economic metrics and provides project examples, marsh restoration, beach restoration, living shorelines and aquatic connectivity (dam removal) of metrics being used to evaluate project performance.
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Recent presentation on assessing how U.S. Fish and Wildlife Service Hurricane Sandy Resilience projects will improve community and ecosystem resilience to sea level rise, storm events and other threats. Presentation highlights development of ecological and socio-economic metrics and provides project examples, marsh restoration, beach restoration, living shorelines and aquatic connectivity (dam removal) of metrics being used to evaluate project performance.
T4: GROUNDWATER MANAGEMENT AND WATER GOVERNANCETHE EGYPTIAN EXPERIENCEFAO
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This presentation was delivered on the 10th of December 2018 in Vientiane by Jeremy Carew-Reid at the MRC final stakeholder workshop as part of the Environmental Study of the Lancang-Mekong Development Plan (LMDP) project.
Sweetwater Reservoir Habitat Recovery Plan Risk Assessmentmsweesy
Special credit is given to Pete Famalaro, Troy Murphree, and the Sweetwater Authority for photo credits, technical reservoir operations and wildlife data, and their collaboration in the development of this study and presentation.
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This special joint Water Wednesday forum featured a presentation from Professor Barry Hart, an independent member of the Murray Darling Basin Authority, on the Draft Basin Plan which is currently out for public review.
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The Third Workshop for the LCWA's Conceptual Restoration Plan was held at the Seal Beach Senior Center on May 10th 2012. These slides are from the presentation of that evening.
This presentation was delivered on the 10th of December 2018 in Vientiane by Peter-John Meynell at the MRC final stakeholder workshop as part of the Environmental Study of the Lancang-Mekong Development Plan (LMDP) project.
Water Wednesday - Murray Darling Basin Plan: Striking the right balance
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This special joint Water Wednesday forum featured a presentation from Professor Barry Hart, an independent member of the Murray Darling Basin Authority, on the Draft Basin Plan which is currently out for public review.
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This presentation was delivered on the 10th of December 2018 in Vientiane by Peter-John Meynell at the MRC final stakeholder workshop as part of the Environmental Study of the Lancang-Mekong Development Plan (LMDP) project.
This presentation was given as part of the EPA-funded Catchment Science and Management Course focusing on Integrated Catchment Management, held in June 2015. This course was delivered by RPS Consultants. If you have any queries or comments, or wish to use the material in this presentation, please contact catchments@epa.ie
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• Involve communities in planning and managing their landscapes; and
• Find a balance between resource use and resource conservation
ICM is now well established in Australia, New Zealand, and the United States. In Europe the ICM approach has been proposed as being required to achieve effective water and catchment management, and is the approach being promoted by DEFRA for the UK, where it is called the “Catchment Based Approach” (CaBA). The principles and methodologies behind ICM sit well within the context of the Water Framework Directive with its aims and objectives for good water quality, sustainable development and public participation in water resource management. In Ireland it is proposed that the ICM approach will underlie the work and philosophy in developing and implementing future River Basin Management Plans.
Irrigation with municipal waste water is a suitable disposal option in all regions where additional moisture can be effectively utilized for improved crop production. Waste water loading is to be based on the consumptive water use of the crop being grown. The primary objective should be enhancement of crop production. The root zone of productive soils can often serve as one of the most active media for the decomposition, immobilization, or utilization of wastes.
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Presented by IWMI's Priyanie Amerasinghe at a World Wetlands Day dialogue: 'Getting Wetland Research into Policy & Practice' held in Colombo, Sri Lanka, on February, 2, 2018
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The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
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1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
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Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
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💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
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👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
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Pimple dimples eureka2013
1. Pimples to Dimples
A regulatory perspective on our efforts to control
runoff from new construction in CA.
Greg Gearheart, PE
Storm Water Program / SWRCB
2. I wish to acknowledge the hard work of my
colleagues at the State Water Board in helping
gather information used in this presentation:
• Eric Berntsen, PH, CFM, CPESC, CPSWQ
• Bill Hereth
• Laurel Warddrip
8. The Tail (of the Dragon)
• The mission of the Water Boards is to
preserve and enhance the quality of
CA’s water resources, and ensure their
proper allocation and efficient use for
the benefit of present and future
generations.
9. Millions of Californians
1980 – 23.7 million
2005 – 37 million
2020 – 50 million (projected)
Where do we put everyone?
“The Californians”-
SNL & Tumblr.com
23. New Construction Numbers
• In FY 2008-2009:
~ 17,000 enrollees in our construction permit
~ 3,000 new enrollees
• FY 2009-2010:
–~10,000 enrollees/facilities
–~150 new enrollees per month
–~50 acres per facility = ~500,000 acres
• Today: ~5000 (new permit + economy)
27. Water Boards nuts and bolts
Our regulatory actions (e.g., CWA401 Certs,
WDRs, NPDES Permits, enforcement, etc.)
require discharges to be protective of our water
quality standards (WQS):
– Water quality standard = beneficial uses + objectives
– Water Boards may “choose to prevent any
degradation”
28. CWA - Water Quality
Standards
• Water Quality Standards are made up of:
– Beneficial Uses (designated to specific
waterbodies), plus
– water quality criteria; and
– an antidegradation policy.
• Beneficial Uses (BUs) are:
• often not directly related to key water resource
uses valued by communities (it might take a suite
of them to protect wetlands and streams, for
example)
29. Beneficial Uses Used to
Protect California Wetlands &
Streams
• AGR – Agricultural Supply
• FLD – Flood Peak
Attenuation/Flood Water
Storage
• FRSH – Freshwater
Replenishment
• GWR – Groundwater
Recharge
• MAR – Marine Habitat
• MUN – Municipal and
Domestic Supply
• RARE – Preservation of Rare
and Endangered Species
• REC-1 – Water Contact
Recreation
• REC-2 – Non-Water Contact
Recreation
• SHELL – Shellfish Harvesting
• SPAWN – Fish Spawning
• WARM – Warm Freshwater
Habitat
• WILD – Wildlife Habitat
• WQE – Water Quality
Enhancement
30. Functional Framework:
Regulatory Tools
•
Landscape (laparoscopic?) and
watershed tools:
– Storm Water NPDES Permits
– CEQA ?
•
Waterbody tools:
– CWA 401 Certifications / Wetland program
•
Project tools:
– Construction permit, CEQA, local
ordinances, building code?
31. Clean Water Act Permits
• CWA Section 402 – Point Sources
– The National Pollutant Discharge Elimination
System (NPDES) – applies to all point sources
of pollutants
– Storm water outfalls are considered “point
sources” and these regulations apply to:
• Industrial Sources (including Construction Activities)
– BAT/BCT standard applies
• Municipal Sources (large and small communities)
– MEP standard applies
32. MS4s and MEP
•
Municipal Separate Storm Sewer System
(MS4)
– Local governments, Caltrans, and some
“non-traditionals” in Phase II
•
Maximum Extent Practicable (MEP)
– MS4s must reduce pollutants in their effluent
to the MEP
– A hybrid standard – part performance-based
and level of effort ($)
33. MS4
Water Quality
Standards (WQS) apply
to receiving waters.
MS4 Permits are
supposed to ensure WQS
are met via MEP
standard applied at “ends
of pipes.”
LID
34. MS4 requires project to
use LID to reduce
pollutants to MEP to
protect
WQS
WQS MEP
Receiving Water
Limitations
Effluent Limitations
MS4 LID
Permittee Desired Practice
(applied to project)
35. Enforcing Post-
construction Standards
via MS4 Permits
•
City Y has an MS4 Permit that requires
all projects adding over 10,000 square
feet of impervious area, etc., to do LID to
meet the 5% EIA standard
•
Project X in City Y fails to comply (or
worse, fakes compliance)
•
Project X is built w/o compliance → City
Y is in violation
•
State/EPA must enforce against City Y
36. NPDES Permit Drivers
towards LID
•
1990's – MS4s had to have post-
construction elements in their plans
•
~2000 – MS4s had to have Standard
Urban Stormwater Management Plans
(SUSMPs)
– capture/treat 85 %ile, 24-hr runoff event
– often resulted in regional basins
– difficult to enforce
37. Modern MS4 Tools
• SUSMPs (the plan, not necessarily the
standard)
• Hydromodification Management Plans
(HMPs)
• Low Impact Development
• Additional post-construction elements
(e.g., water quality BMPs)
38. Common Triggers for
Projects Required to do
LID, etc.
•
>10,000 square feet of impervious
•
“Priority projects” - varies statewide
•
Older permits may trigger at 20,000
square feet
•
other thresholds
39. Common Project
Outcomes
•
Older permits
– Large vaults, structural devices
– Detention basins
– Capture/treat approach
•
Newer permits
– LID
– Flow duration control
– Hydromod/instream intervention in some
cases
40.
41. Common Performance
Criteria
•
Criteria (varies)
– “Post equals pre-development” runoff
volume
– Ranges of flows to control
– (Effective) Impervious area threshold(s)
•
Method of analysis/calculation (varies)
– Continuous simulation
– Rational (modified) method
– Not specified
42. Specific LID
Requirements
•
Construction General Permit requires
“post equals pre” and uses LID-esque
runoff credits (trees, cisterns, etc.)
•
LID Manuals (some developed, some in
progress)
•
Vague “LID preferential” language in
some cases
•
Some MS4 permits contain no LID
language
46. Effective Impervious Area
(EIA)
•
Concerns over using EIA as a surrogate for
hydrologic performance
•
Treats the symptom (surface), not the cause
(hydrology) of WQS impacts
•
Could be gamed (the “grassy moat” scenario)
•
Should use Runoff Volume, Time of
Concentration, and other appropriate
hydrologic metrics instead
47. The importance of soil
• Healthy soils are critical to watershed
health and function
• Engineers tend to focus on the plumbing
more than the soils and biotic features
• Infiltration and recharge do not always
work – LID is flexible, why aren't we?
51. State Water Board’s Watershed
Management Initiative (1996)
“water quality and ecosystem problems are best
prioritized, addressed, and solved at the local
watershed level rather than at the individual
discharger, waterbody, or state agency level……”
52.
53.
54. Watershed Management Zones
•Allow us to identify the most appropriate
criteria to protect dominant watershed
processes.
• Examples: No channel protection criteria in
subwatersheds without streams
• Prescribe higher infiltration volume for areas
that can handle it
• Limit development on areas that supply coarse
sediment
55. Social well-being
Sustainability
Personal Health
Leadership &
demonstration
Efficiency ethic
Environmental
awareness
Minimal impact
Public
acceptance &
demand
Product &
service
availability
Professional
competency
StewardshipStewardship
Reduce Runoff
Soil Conservation & Health
Water Quality
Habitat
Urban environment
Water
Energy
Air (carbon / GHG)
Biomass (green waste reduction)
Resource
Efficiency &
Protection
Watershed
Efficiency &
Protection
Market
Transformation
Market
Transformation
Quality of LifeQuality of Life
Watershed Approach – The New Norm (CA
Urban Water Conservation Council)
56.
57. BUILD “LIVING SOIL”
• Healthy soil biology, full of micro-
organisms forms the foundation
for the entire site ecology
• Similar to the role of plankton in
the ocean
· Creates soil structure
· Stores and cycles nutrients · protect plants from pests
· Improves water infiltration and storage
· Filters out urban pollutants
58.
59. UTILIZE MULCH
• Apply minimum 2” layer mulch
over all planting beds
• Utilize local, recycled, organic
mulch from tree trimmings
• Avoid forest product mulches
• Reapply as needed
• Keep away from root crowns and
trunks
69. Risks of over-engineered
LID
•
Engineered boxes often require
engineered soils
•
Devices buried in corners of commercial
lots
•
Site runoff performance may meet goals,
but overall watershed goals and
sustainability of project is questionable
70. Challenges Ahead for LID
•
Regulating LID
– Retrofits, hydrologic criteria, performance
measurement, over-engineering,
enforcement, linking to WQS and outcomes
•
Legislating LID
– Diverse interests, oversimplification of CA
hydrology, promises of global savior
•
Mother Nature
71. Sustainability Tests
• Resource – protection to enhancement and
reuse (“runoff is a resource”)
• Technical – complex, technological
standard-based to simple, natural,
performance-based solutions
• Institutional – centralized, subsidized
approaches to decentralized, self-supporting
approaches
• Community – healthy individual, societal
cost driven equations to healthy community,
community opportunity equations
72. My Recommendations
•
Water Board/USEPA should develop numeric criteria and
objectives that address hydromod impacts using LID,
instream, and other techniques – in support of beneficial
uses and WQS
•
Wherever feasible, directly regulate those responsible for
constructing projects (and maintaining BMPs), discharging
storm water
•
Open source model → performance-based standards with
flexibility to adapt/learn
•
Promote sustainable approaches to water management
wherever feasible (soils, irrigation, gray water, everything)
Active – Late Holocene-age deposits Abandoned – Early to Mid Holocene deposits with moderate to strongly varnished surfaces, bar and swale morphology Relict Fans – Pleistocene-age fan deposits, remnants of past processes in a geologic epoch defined by considerably more rainfall, colder climate, and multiple glacial and interglacial periods