EXHIBIT 3-A
Work Plan
Project 2 - Seaside Groundwater Basin Salt and
Nutrient Management Plan
This scope
of work for developing a Salt and Nutrient Management Plan (S&NMP) is based
on guidance received by the Central Coast Regional Water Quality Control Board
(RWQCB).
Task 1:
Stakeholder Outreach
This task
will:
1.
Identify
and contact stakeholders such as agencies and private individuals who use or
influence groundwater, or have the potential to, in order to ensure broad
stakeholder involvement in developing the S&NMP.
2.
Conduct
stakeholder meetings and identify stakeholder roles, responsibilities,
financial capacity for the development of the S&NMP.
Task 1 Deliverables: Chapter 1 of the S&NMP; establish
website; meeting notes and material.
Task 2:
Establish Basin Characteristics
This task
will:
1.
Establish
basin characteristics to guide the S&NMPs length and specificity, and
evaluate the historical and current surface and groundwater water quality over
time.
2.
Develop
a GIS project to assist with tracking sources and fate of salts and nutrients.
Task 2 Deliverables: Chapter 2 of the S&NMP; GIS project with
layers to be maintained on MWPMD servers.
Task 3:
Identify Existing and Foreseeable Salt and Nutrient Sources
This task
will:
1.
Identify
potential existing sources of salt, nutrients, and other Constituents of
Emerging Concern (CECs). All organizations with property interests in the study
area will be contacted to determine salt, nutrient, irrigation practice, and
chemical loading characteristics of maintenance or management activities. Estimate loading/concentrations from these
sources.
2.
Identify
existing and proposed water recycling and stormwater recharge/reuse projects
that may add salt, nutrients, or CECs to the groundwater basin, and estimate
loading/concentrations from these sources.
Task 3 Deliverables: Chapter 3 of the S&NMP.
Task 4:
Salt and Nutrient Evaluation
This task
will:
1.
Describe
the hydrologic and hydrogeologic conceptual model of the basin;
2.
Estimate
the water balance of the basin using existing tools;
3.
Estimate
salt and nutrient balances of the basin for existing and planned land and water
use by using sources with loading/concentrations from Task 3, and the water
balance from Task 4.2;
4.
If
required, salt and nutrient, and CEC fate and transport, and assimilative
capacity analyses may be recommended as a future task;
5.
If
required, an anti-degradation analysis will be conducted to ensure high quality
waters in the basin are maintained.
Task 4 Deliverables: Chapter 6 of the S&NMP; summary table of
water balance components; summary tables of input and output components for
salts and nutrients; and triggers to initiate future analyses, as new recycled
water/ stormwater projects are implemented.
Task 5:
Monitoring Programs and Database
This task
will:
1.
Describe
existing groundwater and surface water monitoring programs in terms of
constituents being monitored, frequency, responsible party, and how data is
disseminated. If existing monitoring
programs are not adequate for determining whether salts, nutrients, and CEC
concentrations are consistent with applicable water quality objectives,
additional features, constituents, and frequencies will be identified.
2.
Recommend
a groundwater and surface water monitoring program specific to the
S&NMP.
a.
The
program will be designed to allow for a reasonable, cost-effective means for
regular assessment of the water quality in the basin, and will focus on basin
water quality near water supply wells, areas proximate to existing salt and
nutrient sources, and areas where groundwater has connectivity with adjacent
surface waters. The preferred approach
for developing the monitoring program will be to use existing wells for data
collection; if needed, additional monitoring locations
will be recommended. Water balance components such as groundwater levels,
production, climate, surface flows will also be included in the monitoring
program. It is expected that salts,
nutrients, and CECs will be monitored on an annual basis, unless site specific
analysis determines that a different frequency results in effective plan
implementation.
b.
The
monitoring program will identify stakeholders responsible for conducting,
compiling and reporting monitoring data under the S&NMP. The monitoring program will include a
requirement that data will be complied and reported to the Regional Water Board
every three years.
3.
Describe
existing databases, and recommend a database to be used in the implementation
of the S&NMP. The existing MPWMD
database will be reviewed and its contents summarized. The summary will include which wells and data
are contained in the database, and the frequency at which the database is
updated. Responsible parties for
providing data and updating data will be identified. It is likely that the existing MPWMD database
will be used for storing monitoring data related to the S&NMP. Necessary adjustments and/or additions will
be made to the database to ensure it meets the needs of the S&NMP.
Task 5 Deliverables: Chapter 4-Existing Groundwater Monitoring
Programs, Chapter 5-Existing Databases, and Chapter 8- Salt and Nutrient
Monitoring Program.
Task 6:
Prepare Salt and Nutrient Management Plan
The table
below shows the proposed sections for the Seaside Basin S&NMP; however, the
outline is expected to change based on direction provided by basin
stakeholders.
Chapter 1: Stakeholder Involvement |
Subsection
6.3: Salt and nutrient balances |
Subsection
1.1: Stakeholder identification |
Subsection
6.4: Fate and transport of salts, nutrients and CECs |
Subsection
1.2: Stakeholder roles and responsibilities |
Subsection
6.5: Assimilative capacity (if required) |
Chapter 2: Basin Characteristics |
Subsection
6.6: Anti-degradation analysis (if required) |
Subsection
2.1: Basin boundaries |
Chapter 7: Salt and Nutrient
Management Strategies |
Subsection
2.2: Basin physiography |
Subsection
7.1: Actions to manage salt and nutrient loading |
Subsection
2.3: Watersheds and hydrology |
Subsection
7.2: Management triggers |
Subsection
2.4: Climate |
Chapter 8: Salt and Nutrient
Monitoring Program |
Subsection
2.5: Beneficial water uses |
Subsection
8.1: Goals and objectives |
Subsection
2.6: Land uses, and land cover |
Subsection
8.2: Location of monitoring features |
Subsection
2.7: Surface water quality |
Subsection
8.3: Constituents to be monitored, including CECs |
Subsection
2.8: Groundwater quality |
Subsection
8.4: Sampling methodology |
Chapter 3: Salt and Nutrient
Sources |
Subsection
8.5: Sampling frequency |
Subsection
3.1: Existing salt and nutrient sources |
Subsection
8.6: Stakeholder roles and responsibilities |
Subsection
3.2: Proposed salt and nutrient sources |
Subsection
8.7: Reporting (including trend analysis) |
Chapter 4: Existing Groundwater
Monitoring Programs |
Chapter 9: Salt and Nutrient
Management Plan Implementation |
Chapter 5: Existing Databases |
Subsection
9.1: Performance measures |
Subsection
5.1: Existing database identification and description |
Subsection
9.2: Implementation schedule |
Subsection
5.2: Data gaps |
Subsection
9.3: Adaptive management |
Subsection
5.3: Recommended database |
Subsection
9.4: Public outreach and education |
Chapter 6: Salt and Nutrient
Evaluation |
Subsection
9.5: Cost analysis |
Subsection
6.1: Conceptual model |
Subsection
9.6: Funding opportunities |
Subsection
6.2: Water balance |
Subsection
9.7: Institutional arrangements |
Subsection
9.8: Organizational structure |
Additional
items that will also be part of the management plan are Salt and Nutrient
Management Strategies, and Salt and Nutrient Management Plan
Implementation. Salt and nutrient
management strategies will consider Best Management Practices (BMPs) and will
involve developing a list of cost effective and readily implementable
strategies should salt and nutrient concentrations become elevated. Examples of BMPs include: salt and nutrient
source control, improved irrigation practices, irrigation source water changes,
and enhanced recharge of rainwater and/or stormwater. Threshold concentrations of selected salts
and nutrients will be proposed that would invoke specific management
strategies. Salt and Nutrient Management
Plan Implementation will include the following necessary elements: performance measures, implementation
schedule, adaptive management, public outreach and education, cost analysis,
funding opportunities, institutional arrangements, and organizational structure.
Task 6 Deliverables: Salt and Nutrient Management Plan: Chapters 1 - 8.
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