Marina City Council
April 29, 2025

CITY OF MARINA and

MONTEREY PENINSULA REGIONAL PARK DISTRICT

SPECIAL JOINT MEETING AGENDA
D
ate: Tuesday, April 29, 2025
Time: 7:00 p.m. – 9:00 p.m.

Location: Marina Library Community Room,
190 Seaside Circle, Marina, California
1) 7:
00 CALL TO ORDER
2) RO

LL CALL
3) APPRO

VAL OF AGENDA
4) DI
SCUSSION/ACTION ITEM (Discussion items generally include a staff presentation or explanation and recommendation before Board discussion and vote. Public speakers are limited to two minutes.)
Locke-Paddon Wetland Community Park (A. Hunter/J. Smith) A. Meeting Purpose and Desired Outcomes for Initial Meeting B. Park Overview and Background
C. Current Conditions and Need for Coordinated Park Investment and Management
D. Public Comments
E. Council and Board Comments
5) 9:
00 ADJOURNMENT
N
o formal action will be taken at this meeting.

A
genda packets, with the exception of Closed Session and non- approved items are available at the Administration Office. Agendas are available at the Garland Park Visitor Center and Big Sur, Carmel, Carmel Valley, CSUMB, Marina, Monterey, Pacific Grove, and Seaside Public Libraries.

Materials related to an item on this Agenda submitted after distribution of the Agenda packet are available for public inspection at the Administration Office during normal business hours. The Agendas and Agenda packets may also be viewed on the District website at www.mprpd.org.

AMERICANS WITH DISABILITIES ACT (ADA) NOTICE: If you believe you possess any disability that would require special accommodation in order to attend and participate in this meeting, please contact the Board Clerk at (831) 372-3196 at least 48 hours prior to the scheduled meeting.

Updated
Informational Documents Included
Final

MASTER PLAN AND DESIGN

DEVELOPMENT REPORT

LOCKE-PADDON WETLAND PARK

Monterey Peninsula Regional Park District
Prepared by:
purkisszrose-rsi
August 2005

Locke-Paddon Wetland Park | Design Development Report ________________________________________________________________________________

Table of Contents
Page Number
Authority 1

Purpose 1

Vicinity Map 2

Background 3

Methodology 4

Site Description 5

Concept Plan 6

Development Concept 7

Possible Environmental Impacts 13

Cost Analysis 15

Opinion of Probable Cost 16

Maintenance Program 17

Appendix 18
Meeting Minutes for 11/4/04
Sign-In Sheet for 11/4/04
Meeting Minutes for 1/18/05
Concept A Drawing
Concept B Drawing
Landscape Maintenance Specifications

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Locke-Paddon Wetland Park | Design Development Report
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Authority

On September 16, 2004, the Monterey Peninsula Regional Park District entered into agreement with Purkiss-Rose-RSI to furnish park planning and landscape architectu ral services for the enlargement and enhancement of Locke-Paddon Wetland Park in the City of Marina. This service involved the pr eparation of a Master Plan and a Design Development Report for this park site.

Purpose

The Design Development Report (DDR) is an association of planning functions composed specifically to meet the needs of the public agency in processing the initial de sign of a park area or special facility. Its purpose is to establis h a concept plan that depicts the recommended development of a specif ic site and/or special facility and to establish a realistic phas ing program that fulfills primary needs and is as consistent as possible with financing resources.

The plan is prepared in a graphi c form that allows the citizen, administrator, board member and elected official to participate effectively in the decisions on scop e, function, priorities, and design concepts. The Design Development Report presents concepts of use; describes functional aspects of the design; investigates methods of implementation; describes potent ial environmenta l impacts; and promotes community understanding and support for the program.

Locke-Paddon Park

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Locke-Paddon Wetland Park
Locke-Paddon Wetland Park | Design Development Report ________________________________________________________________________________

Background

The town of Marina was laid out in 1913 by William Locke-Paddon after he purchased 1500 acres from the David Jacks family of Monterey notoriety. Mr. Locke-Paddon was a very successful real estate speculator that specialized in buying small family farms throughout Northern California an d then subdividing and marketing them as “Locke-Paddon Colonies.”

The large tract of coastal prairie that he purchased from the Jacks family was subdivided into 300 five acre parcels that sold for $75 each. To help “sell” Marina, Mr. Locke-Paddon persuaded the Southern Pacific Railroad to put in a “flag-stop” to accommodate travelers, and prospective buyers, from the San Francisco area. The town was incorporated in 1975 and soon after began looking for projects to enhance the City’s character.

The Park District was also recently formed (1972) and was actively seeking cooperative open space proj ects within peninsula cities. A very noticeable characteristic of th e City was its six vernal ponds. In 1986 a partnership was created betw een the Regional Park District, the City and the Coastal Conservancy to acquire the lands around KIDD pond – so named for the tall towers owned by the station of the same called letters.

Prior to any acquisitions, a pond enhancement plan was adopted which gave direction for the pond’s future development and protection. Once adopted, the Distric t’s first purchase was the 12 acre Walton/KIDD parcel. By 1991 five of the six parcels were publicly owned and the park was dedicated as Locke-Paddon Wetland Community Park in honor of the City’s founder. The City also approved plans for a much needed lib rary in the park. Acquisition of the last remaining private parcel, known as the Isakson Property has recently been completed. This effort which will complete a long 15 year effort that will also begin the final phase of its original goal – its enhancement and restoration as critical coastal wetland habitat.

In 1994 a comprehensive Vernal Pond Management Plan was adopted by the City that reaffirmed the unique wetland nature of the park as wildlife habitat.

Pond south end of project

Newly acquired Isakson property

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Locke-Paddon Wetland Park | Design Development Report ________________________________________________________________________________

Methodology

The provision of park and recreation facilit ies is a people-oriented program and successful implementation requires public support an d involvement. Obviously, decisions cannot always meet the specific desires of all segments of the community. The basic nature of public recreation recognizes that people have varied interests and sk ills involving a wide spectrum of activities. Since the primar y purpose of local parks is to accommodate many of these activities, it is incumbent on government to mitigate, as much as possible, all possible impacts on the site.

In an effort to generate public input and to ally the Locke-Paddon Wetland Park community with the overall recreation needs, a number of meetings were held. The first meeting was held on November 8 th, 2004, at the Monterey Peninsula Region al Park District office and included representatives of the City, Locke-Paddon Im provement Committee, and other stakeholders.

A brief history of the park site was described as well as the recreational needs/deficiencies that face the Park. Based on recommendations iden tified in the two previously adopted pond plans and input from the meeting, two conceptual Master Plans were developed and prepared.

The second meeting for community input was on January 19 th, 2005, at the adjacent Holiday Inn Express conference room. Again, the project background was described with the two conceptual Master Plans propos als. The audience was divided into separate tables where participants expressed their concerns and ideas, which were noted.

The consensus was that conceptual Master Plan B, with some revisions, seemed to best meet community needs. From conceptual Master Pl an B a proposed final Master Plan was developed for the Park District’s approval.

A draft Master Plan was presented to the Monterey Regional Park District Board at their June 13, 2005, Board Meeting at Marina City Hall. Th ere were some minor adjustments suggested by the Board. The public input expressed by attendees was supportive of the Master Plan.

Ongoing maintenance responsibilities were a concern voiced by the public and Board members.

The draft Master Plan and Design Development Report was transmitted to the City of Marina Council members and presented for their inform ation and input at their public meeting on July 19, 2005.

The final Master Plan and Design Development Report was presented to the MPRPD Board of Directors at their August 1, 2005 meeting.

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Locke-Paddon Wetland Park | Design Development Report ________________________________________________________________________________

Site Description

Locke-Paddon Wetland Park is located on the northwest corner of Reservation Road and Del Monte Boulevard in the City of Marina.

The prominent site has a gradual elevation rise to the north to Seaside Circle. The site is bordered to the east by Del Monte Boulevard and the Southern Pacific Railroad line right-of-way, the south and west by Reservation Road, and the north by Seaside Avenue. The 23-acre park has been recently expanded on its east border by the acquisition of an additional 10 acres along the Southern Pacific Railroad right-of-way.

There is significant vegetation within the site. Large Monterey Cypress provided a windscreen to the newly acquired property.

Existing Park improvements have brought forth new landscape areas, including trees, shrubs and irrigation. A large mitigation area is centrally located in the park. A small constructed amphitheater, concrete picnic benches, trash receptacles are found throughout the park. A restroom facility is located on the northwest corner of the site near the intersection of Seaside Circle and Reservation Road.

The major feature of the park is the existing wetland pond at the toe of the gradual grassland slopes, wh ich is freshwater and perennial.

Water levels are maintained in winter through inflows of storm and groundwater. The pond is shallow with very little topographic variation, this results in a low dive rsity of vegetation and wildlife habitat types within and adjacent to the pond. The pond catches run off from the near-by shopping ce nter on Reservation Road, which attributes to the pond’s less than desirable water quality.

A major concern within the park includes the control of homeless encampments on the corner of Del Monte Blvd. and Reservation Rd. in the willow understory. The large population of domestic geese and ducks within the pond has conc erned the community and visitors with their aggressiveness, foul sme ll, and negative impact on water quality.

Isakson Property

Existing Improvements

Homeless camp at Northeast end of site

Future Library Site

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Locke-Paddon Wetland Park | Design Development Report ________________________________________________________________________________

Development Concept

Design Overview
As a community park, Locke-Paddon Wetland Park is intended to serve a variety of recreation and educational needs associated with the greater Marina community. In developing the Master Plan for the park, there were several existing uses and conditions that affected the final design of the Master Plan.

One of the biggest constraints of the Park are the two existing radio towers. Although they can be a very good landmark for locating the park while driving on near-by High way 1, their subsurface impact on park development is significant. Any improvements within a 300’ radius of the towers must be above grade, due to the sub-surface grounding wires of the towers. Pr oposed improvements, including the library, have stayed clear of the grounding wires.

Existing Park improvements at the corner of Reservation Road and Seaside Avenue will remain as part of the Master Plan design, which include the restroom building and terraced landscape border. The 18- space parking lot will also remain to conveniently accommodate park visitors to the site.

The existing pond is essential to the park and is retained in the Master Plan as is . A suggestion would be for the pond to have an aeration system added, which can be implemented with the addition of artificial streams with head ponds. Habitat recommendations include removal of non-indigenous plant species and the thinning of the overgrown willows on the easter n end of the pond to help keep that portion of the park open, and thinning of the overgrowth and encroachment of cattails within the pond.

Library
The future home of the City of Marina Library is adjacent to the park site at the end of Seaside Avenue. Every effort will be made to integrate the development of the lib rary with the surrounding park.

Coordination will be vital in the planning for the park and library.

Radio Towers

Existing Improvements

Library and parking
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Open Play Areas
The recently acquired 10-acre prop erty provides an opportunity for new open space play areas. It is proposed that the area be bermed to provide a visual and sound buffer from the proposed visitor rail service project planned for the abandoned Union Pacific railroad right-of-way. The berm could also act as an informal amphitheater for an outdoor performance area. Improvements to this area could also include irregular groupings of trees as well as keeping most of the remaining Monterey Cypress trees, which currently form a visual landscape screen and separates th e new 10-acre property from the rest of the park. A drop-off area will provide two convenient accessible parking stalls for visitors with special needs and provide a drop-off location for the large picnic shelter area.

Large Picnic Shelter
A large group picnic shelter is pr oposed in the open play area.

Improvements may include a concrete slab under the shelter to house picnic tables, large barbeque grills and sinks. The large berm around the shelter will act as a wind brea k. A large informal grouping of trees surrounding the shelter will provide a sense of enclosure from the surrounding play area.

Lake, Pond and Streams
The Lake is recommended to remain “as is”, with some minor clean- up, removal of exotic plant species and thinning of willows and cattails. Two re-circulating streams and head ponds are included in the proposed park design for a number of reasons. They will not only take advantage of the natural gr ade changes and water collection aspect of the site, but they will ad d interest and another educational habitat type to the park. They will also provide an aeration system for the pond, which will have a benefici al effect on the currently high bacteria count. The stream sources will begin at the two head ponds as proposed for the recently acquired 10-acre property. They are directed toward the lake via cons tructed, lined streambeds that meander south along internal path ways into the lake, and allowing for the possibility of riffling casc ades. The existing and proposed pedestrian trails will be bridged at the streams crossings. To further enhance the educational and habitat character of the proposed streams, it is suggested that they be bordered with typical riparian trees, shrubs and perennials. Research and related materials would also be found at the library to provide a cooperative educational experience to all park visitors.

Picnic/open play area w/ pavilion

Large Head Pond & Stream/Riparian Habitat.

Locke-Paddon Wetland Park | Design Development Report ________________________________________________________________________________ __________________________________________________________________________________________________

Play Areas
Two passive play areas are proposed on the site; one associated with the group picnic area on the recent ly acquired 10-acre property; the other overlooking the head pond near the Library building to the north of the site. Both are conveniently located near activity areas and are accessible by walkways, which tie into the overall circulation system of the park. Both play area s are defined by a concrete curb, which contains rubberized surfacing or woo d chips and acts as a mow strip for maintenance ease.

Play equipment is recommended to include modern state-of-the-art play structures with slides, ladders , bridges, transitions, lookout platforms, balance beams, climbing apparatuses, and various play panels. Improvements will be designed for ADA compliant access.

Large Informal Amphitheater
The grass slope and berming in the open play area on the east side of the park along the railroad right-of-way is intended to act as a sound and visual buffer and as an informal amphitheater for community events. A stage area is recommended for the foot of the slope and would be back-dropped by the lake.

Trails and foot paths
A 10’ wide ADA
compliant bike
path will replace
the existing path
along the south-
west perimeter of
the lake and
connect the
existing Monterey Bay Coastal Tra il along Del Monte Boulevard with the existing parking area on Se aside Avenue. The path will also connect with other existing and proposed trails to provide access around the complete perimeter of the lake. It is also suggested that the trail system be enhanced with benches, trash receptacles, interpretive
displays, and exercise stations. Thinning of the willow trees on the southern edge of lake will create an opportunity to provide an observation deck to view the lake. The observation deck could incorporate a seating area and trash receptacles. Two other observational platforms are suggested for the northern part of the lake and co uld include benches, interpretive panels, and trash receptacles. In addition to concrete walks, there may be opportunities for elevated or floating decks to provide pedestrian access over high water areas or across the lake. In considering these deck systems, there are agency concerns regarding

Tot lot near Library

Informal Amphitheater

Southern Park entry

Trails adjacent to Reservation Road

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Locke-Paddon Wetland Park | Design Development Report ________________________________________________________________________________

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construction costs, maintenance requirements, habitat impact, as well as safety and liability. These access options will be further considered during design development when more specific topographic and drainage information is available. All other existing and proposed trails are recommended to be ADA compliant with a medium broom finished concrete surface.

Signage
An elevated new park sign is recommended at the corner of Reservation Road and Del Monte Blvd. The new identification signage should incorporate recycl ed materials. Directional signage and facility identification signs ar e recommended where necessary to direct park users to the appropriat e parking and activity areas. Signs should also identify the restroom facilities and handicapped parking spaces, where applicable. Interpre tive kiosks, panel displays, and signage should be placed adjacent to the walkways and at interpretive/education areas for effective use.

Interpretive Educational Area
A large portion of the existing park site is recommended as an interpretive education area with a series of ADA compliant trials looping throughout the park. The intent of the interpretive area is to provide environmental education opportunities to park visitors. Each area will be defined by the tra il system. These educational areas should primarily consist of plan t communities indigenous to the Marina site and, where appropria te and useful for environmental educational purposes, to
Monterey County. The area
includes the existing
amphitheater with suggested
minor aesthetic changes, and
the existing Holiday Inn
Express mitigation area. The
individual picnic tables and
trash receptacles scattered
along the edge of these trails
should be consolidated and
located in the passive play area of the recently acquired 10-acre property. Concrete slabs are recomm ended under tables to minimize maintenance requirements. Turn-out areas with rock features along the trails can provide a resting place as well as a chance for informal interpretive and social interaction without obstructing walkers.

Existing Park Signage

Existing Amphitheater

Interpretive turn-out with rock outcropping

Existing Mitigation Area

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Landscaping
Proposed planting is intended to define and buffer the activity areas from each other. Plantings can be us ed to direct views and circulation through the park site. In proposed turf areas trees should be located at least 20 feet apart to allow efficient mowing with large mowers.

Concrete mow strips should be used to delineate between turf and planting areas for maintenance ease. Plant species should be selected to reflect the indigenous plants of the area and to minimize maintenance requirements. Trees are recommended to provide wind deflection in activity areas. To pres erve existing trees that are notable specimens, pruning, thinning, an d removal should be done under direction of a certified arborist.

It is recommended that the entire site be covered by an automatic sprinkler system designed to provide adequate irrigation for the different types of landscape planting. Low precipitation heads should be used to minimize water runoff, particularly in steep areas.

Rotary type sprinklers could be used in the proposed large maintained turf areas. Impact type sprinklers are appropriate in areas where groundcover planting is proposed. Elevated heads should be protected from damaged caused by users and maintenance equipment. In addition to low-volume heads, various water c o n s e r v a t i o n m e t h o d s s h o u l d b e u s e d t o m a x i m i z e e f f i c i e n c y o f t h e irrigation system.

Parking
The parking has been proposed as convenient to activity areas as possible. Access to all parking areas is off of Seaside Avenue only.

The parking area located near the group picnic area is for handicapped parking only. A drop-off has been incorporated in that area to provide access for loading and unloading equipment, supplies or visitors as needed. The road can also serve public safety and maintenance vehicle access to the play area. The existing parking area on the northwest can accommodate 17 cars and has a single accessible space. The remaining library pa rking area can accommodate an additional 62 cars and eight ADA accessible spaces. All parking areas are recommended to be composed of asphalt with striping, tree planting, curb and gutters, and accessible sidewalks and ramps.

Locke-Paddon Wetland Park | Design Development Report ________________________________________________________________________________

Future Park Connections
With the proximity of Locke- Paddon Wetland Park to Vince Dimaggio Park, there was public in terest to provide a connection between these two facilities. The Un ion Pacific Rail line could be a major factor in this design if it is re-activated in the future. Though there is an existing sidewalk alon g the eastern side of Del Monte Boulevard and a crosswalk at Rese rvation Road, any future design considerations might include a pedestrian overpass linking the two parks.

Proposed connection to Dimaggio Park

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Locke-Paddon Wetland Park | Design Development Report ________________________________________________________________________________

Possible Environmental Impacts

This preliminary evaluation of environmental conditions and possible impacts has been made without the benefit of thorough scientific assessments or testing techniques. These preliminary findings are based on visual inspection of the site; comparison with similar projects; and a working knowledge of the CEQA process. The prim ary intent is to identify critical impacts early in the design program so that solutio ns reflect both environmental concerns and functional criteria.

Aesthetics
The transition from vacant land to high quality landscaping recreational amenities not yet present in the community is direct, major an d extremely beneficial. The proposed park improvements will contribute to the recreational, social and aesthetic character of the City of Marina area as a whole, and will substantially improve the aesthetic quality of the immediate neighborhood.

Noise
Negative impacts are minimal. During construction there may be significant, though temporary, increases in noise levels. The new uses and intensities capable for this site based on the proposed new recreation improvements will increase current in ternal noise levels.

However, proposed plantings and berms within the site will significantly buffer new noise impacts by acting as an acoustical shield, part icularly when planted. The relatively low impact of the rest of the site should cause no sign ificant noise problems, no more than what is currently on the existing site. Control of co nstruction noise will be by enforcement of construction specifications and inspection. No ise generated from park maintenance equipment can be controlled by adequate muffler devices and work scheduling. Program scheduling will control organized activities and the noise they generate.

Light and glare
Any installed security lighting should be low profile and directed downward with a minimal amount of light spill or glare, and be an ener gy efficient, high intensity discharge type. The particular types should be selected for color and control of light distribution pattern.

Mitigation measures could include:
(1) shielding the light sources where necessary;
(2) controlling the lighting systems by timers for limited use; and (3) designing security lighting to a minima l level to eliminate dark spots in the park without glare.

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Locke- Paddon Wetland Park | Design Development Report ________________________________________________________________________________

Traffic and Parking
The generation of additional traffic (vehicular , bicycle and pedestrian) will be experienced on the northern edge of the site along Seaside Av enue. No vehicular access is allowed anywhere on the site except at the entrances off Seaside Avenue. The amount and intensity of traffic will be primarily a function of the proposed new lib rary and secondarily related to the proposed park improvements but will need to be quantified nonetheless.

Water Usage
The park will be designed to conserve water re sources wherever possible. Native indigenous plant species are generally drought tolerant and the proposed turf area can be planted with a drought resistant grass. The irrigation system can be automatically controlled allowing specific water conserving adjustment in various areas (according to the plant species and particular microclimate). Low volume irrigation heads can reduce runoff, particularly on slopes. Rain and moisture sensors can also be used to monitor and control the irrigation system.

Water from the lake will be re-c irculated through the proposed stream system and should be considered to supply the irrigation system.

The existing water well on the newly acquired Isakson property will be investigated as a potential source of water for lake replenishment and irrigation.

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Locke-Paddon Wetlands Park | Design Development Report ________________________________________________________________________________

Cost Analysis

The Design Development Report is a planning product that provides required information to establish a realistic program of im plementation. Not only does it determine an accurate scope of proposed development, it must also provide detailed estimates of construction costs.

Construction costs can be projected quite accura tely after the establishment of scope and the adoption of reasonable standards of development. Cost projections are based on tested costing information, including comparisons with similar projects or facilit ies that have been constructed during the past six month period. Estimates do not include future inflation factors and they must be updated according to schedule of accomplishment.

The attached Opinion of Probable Construction Cost table identifies typical costs associated with the types of development improvements contemplated in the plan for a park with the size and scope of development proposed for Locke-Paddon Wetlan d Park. The costs are significant because the plan is ambitious and has as an outcome a park th at will be highly attrac tive, easily accessible, user friendly, diverse in its micro-environments, and educationally provocative. It must also be noted that the park has seen very little improv ement or maintenance funding over its nearly 20- years of existence. The proposed recreational, landscape, and habitat improvements will create a high-caliber park that will be much used an d appreciated by the community as well as be a source of civic and agency pride as the landsc ape and uses mature. The investment may seem substantial but is typical of an urban open space park this size.

The costs are anticipated to be phased over time with the initial improv ements related to turf and landscape enhancements and recreational amen ities to improve the appearance of the park and attract more use by the community. Further phases will address a ccessibility and habitat enhancements as funds become available. By phasing the construction costs, there is the opportunity for capital campaigns that have specif ic goals and tangible items. Phasing also helps spread the costs over time and not encumber the Park District’s budget or the community’s ability to generate cost-sharing funds.

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Purkiss Rose-RSI
801 N. Harbor Blvd.

Fullerton, CA 92832
Tel. (714) 871-3638
Fax (714) 871-1188
Monterey Peninsula Regional Park District
NO.

EST.

QTY. UNIT DESCRIPTION UNIT COST ITEM COST TOTAL
1 255,900 S.F. Site clearing and grubbing 0.05$ 12,795.00$ 2 255,900 S.F. Rough Grading 0.30$ 76,770.00$ 3 255,900 S.F. Finish Grading 0.15$ 38,385.00$ 4 54,745 S.F. Enhanced Mitigation Area 0.10$ 5,474.50$ 5 141,940 S.F. Interpretive Education Area 0.15$ 21,291.00$ 6 174,326 S.F. Lakeside 0.25 $ 43,581.50$ 7 62,600 S.F. Asphalt concrete paving 2.50$ 156,500.00$ 8 91,095 S.F. Reinforced concrete paving 4.50$ 409,927.50$ 9 1,020 L.F. Concrete mowbands 15.00$ 15,300.00$ 10 1,315 L.F. Stream feature 100.00$ 131,500.00$ 11 1 L.S. Lakes/Ponds w/ liners & pump 125,000.00$ 125,000.00$ 12 7,820 S.F. Rubberized surfacing at Tot lot 14.00$ 109,480.00$ 13 1 L.S. Totlot w/ shade shelter 100,000.00$ 100,000.00$ 14 1 L.S. Large pavilion/shade shelter 45,000.00$ 45,000.00$ 15 1 L.S. Outdoor stage 15,000.00$ 15,000.00$ 16 1 L.S.

Site Amenities (Picnic tables,
BBQ's, Benches, Bike Rack, Trash
Recepticles, etc) 50,000.00$ 50,000.00$
17 5 EA. Foot bridges 7,000.00$ 35,000.00$ 18 418,550 S.F. Turf 0.50 $ 209,275.00$ 19 165 EA. Trees 300.00$ 49,500.00$
20 560,490 S.F. Irrigation 0.15$ 84,073.50$ 21 1 L.S. Park wayfinding signage 10,000.00$ 10,000.00$ 22 1 L.S. Entry Monument signage 10,000.00$ 10,000.00$ 23 1 L.S. Large Pond Aeration system 45,000.00$ 45,000.00$ SUB-TOTAL 1,798,853.00$
10% CONTINGENCY 179,885.30$
TOTAL 1,978,738.30$

OPINION OF PROBABLE CONSTRUCTION COST
Job Number:

Job Name:

Date:

Locke-Paddon Wetland Park
04-158
June 3, 2005
Purkiss Rose-RSI has no control over the cost of labor, materials, equipment or the contractor's methods of determining costs. These opinions of probable costs represent our best judgement as design professionals familiar with the construction industry and public works contracts. Purkiss Rose-RSI cannot and does not guarantee that proposals, bids or construction costs will not vary from our opinion of probable construction costs. Opinion of Probable Cost shall not be used as a bid form or for any bidding purposes.Rev. 02-24-04
Locke-Paddon Wetland Park | Design Development Report ________________________________________________________________________________

Maintenance Program

The intent for the majority of this park is to maintain a more naturalistic character that fits and compliments the existing pond, existing vegetation and existing park amenities. The majority of the site is open space and is intended to be covered with drought tolerant and/or native plant materials that require minimal main tenance and moderate supplemental water.

Maintenance in the more naturalistic areas will involve periodic checking and adjustment of the irrigation system to insure adequate cove rage with the automatically controlled system; control of weeds and eradication of invasive ex otic species such as Kikuya and Bermuda grass and Castor Bean; and litter removal as necessary.

Tree trimming should be limited to removal of deadwood and thinning as necessary to promote a strong and balanced limb structure that can withstand the prevailing winds.

Similarly, shrub pruning will be minimal, with species selected that have low profiles and require little supplemental care.

The expansion area is intended to provide an open maintained turf area for more active informal play or gatherings associated with the library and group picnic shelter. The turf will be fescue type and will requir e regular weekly mowing, daily irrigation and supplemental periodic feeding.

The existing main pond will require litter removal as nece ssary and an annual removal of encroaching cat tails and willows to maintain open water and a definitive shoreline. Some removal of algae may be necessary depending on the success of the improved circulation and aeration enhancements that may be implemented.

The aeration and pumping system associated with the ponds water quality improvement program will require a regular maintenance inspecti on to insure that the system is properly working We would expect that this would be every two weeks or monthly as the particular site circumstances warrant.

Maintenance of the restroom, play area, picnic facilities, parking areas, trash receptacles and paths would be on a weekly basis similar to the maintenance schedule for any community park.

A sample maintenance specification has been included in the Appendix with detailed descriptions of maintenance services to be performed.

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Appendix
Purkiss Rose-RSI1
Purkiss Rose-RSI
801 N. Harbor Boulevard
Fullerton, CA 92832
Tel. (714) 871-3638
Fax (714) 871-1188
DATE November 8th, 2004
MEETING MINUTES:

PROJECT: Locke-Paddon Wetland Park, City of Marina

DATE OF
MEETING: November 4 th, 2004
LOCATION: Monterey Peninsula Re gional Park District Office PRESENT: See attached sign-in sheet
DISTRIBUTION: Tim Jenson, MPRPD
PURPOSE: Concerns and Constraints Meeting
JOB STATUS: Preliminary
Notes
S Library
- 28,000 sq. ft.- waiting for finalization agreement between County and City....almost enough money.
- Bus to route along street for drop off to Library
- Parking at Library could be below City of Marina standards. Possibilty? - Mitigation of Library to be address later?
S Connection to Dimaggio Park
- City would like to see a thought put into connecting Dimaggio Park and Locke- Paddon, possible pedestrian bridge over street and railroad tracks.

S Radio towers
- Water level to not exceed height of concrete platforms - No cutting near towers, ground wires. (See plans for radii around tower) Filling OK
S Pond
- Clay bottom of lake to not be penetrated. No drainage/percolation on pond. - Water/ drainage from adjacent streets (north) run into pond. No outlet in pond. - South end of pond typically floods out. 1" of rain could yield 6"-12" more elevation in pond.

Purkiss Rose-RSI2
- Pond needs aeration - high bacteria count! No fountains or spraying. Possible solar pumps?
- Environment of pond!! Main focus. Trimming of Tule, aeration of pond. - According to Dept. of Fish and Game, fishing is legal on site. Possible catch and release program.
- Ducks a large problem of pollutants in pond. Discouragement of feeding of ducks.

S Stream
- Possible Stream from Library site to pond. Interpretive education? Stream habitat? Plant communities?
- Possible route from Library to existing “duck pond” to main pond - environmental studies on site by school kids, groups, or classes. Then head to library for study, materials, reports, and information.

S Amphitheater
- Needs podium/stage to be more viable resource for park - Currently only seats 60 people (maximum) & hardly ever used. - Possible integration of stream into Amphitheater area - Use it for library lectures/outdoor education
S Misc.
- Cutting of willows may have environmental impact on pond - Clear access from pond to Marina State Beach. (Signage?) - Group picnic area/s on site
- “Pier like” over looks on site for viewing of lake over water. - Site is cold and windy. Wind from the south. (State beach area) - Possible “green area” or open green space for large events and passive recreation - Public access from parking area for library. (School kids to north migrate in that direction to north of site.
- Indiscrete lighting at north end of pond.
- Public access at north end of pond
- Public access on Street is very bad (current condition) - Possible trail loop around pond
- Could be future light rail train on tracks

Locke-Paddon wetland park 11/4/04
Name Agency/Company Phone Number

1 Robert Echavarria Purkiss-Rose-RSI (714)871-3638
2 Steve Lang Purkiss-Rose-RSI (714)871-3638
3 Gary Wilmot
Locke-Paddon
Improvement
Committee
(831)384-3361
4 Gary Cramblett City of Marina (831)884-1242
5 Charles Johnson City of Marina (831)884-1218
6 Lenore Masterson Library Commission (831)883-3968
7 Joe Donofrio MPRPD (831)372-3196 x4
8 Tim Jenson Monterey Co. Planng. (831)372-3196 x2
9 Bart Bruno MPD/MHIE (831)384-4081

Purkiss Rose-RSI1
Purkiss Rose-RSI
801 N. Harbor Boulevard
Fullerton, CA 92832
Tel. (714) 871-3638
Fax (714) 871-1188
DATE January 26th , 2005
MEETING MINUTES:

PROJECT: Locke-Paddon Wetland Park

DATE OF
MEETING: January 18th, 2005
LOCATION: Holiday Inn Express - City of Marina - Monterey Peninsula Regional Park District
PRESENT: See attached sign-in sheet
DISTRIBUTION: Joe Donofrio, MPRPD
Tim Jenson, MPRPD
PURPOSE: Community Input Meeting
JOB STATUS: Preliminary
Notes
-

1.0 - Table 1 Input notes

1.1 - Marina Arts Council has initiated contact with the Monterey Bay Aquarium to plan for interpretive nature trails.

1.2 - Bikes on trails especially those near or connecting to existing bike paths.

1.3 - Placement of benches along trails. Possible “Memory Benches”

1.4 - Places to lock bikes, where they could be locked, if they are denied certain trail access, or at library entrance, etc.

1.5 - Ensure long term plan to avoid contamination of pond/lake/stream/nature areas from runoff of library and parking lots.

1.6 - Stage coach history - interpretive sites

1.7 - Long term funding for all facilities and nature areas

1.8 - Insectarium (only 1 in N. America) educate people to role of insects

1.9 - “Revolving”/changing exhibit areas

1.10 - Open Sky/Air Convention center - joint hotel use

1.11 - Support for litter pick-up & coordination with Marina Public Safety for homeless camp removal

1.12 - Sculpture garden, art in the park
Purkiss Rose-RSI2

1.13 - Bronze plaque interpretive signage for plants & animals, links to Native American cultural history.

2.0 - Table 2 Input notes

2.1 - Park & library both used at same time - could be conflict for parking. Look at Marina Landing shopping center for shared parking.

2.2 - Is the Holiday Inn mitigation being “maintained”? Why is it brown and property unsightly?

2.3 - Loop trail good idea with fitness course links

2.4 - Pier style walkways going over some areas of the pond tying in to walkways but the boardwalk over the pond can be in smaller areas then currently designed.

2.5 - Like idea of aeration of pond - needs to be sustainable.

2.6 - Foul Fowls - look at study done by CSUMB student. Stop feeding ducks - use Lake El Estero as example.

2.7 - Water level/table needs to be studied to establish path elev ations and location of observation platforms.

2.8 - Long term stability of pathways relative to water levels & erosion

2.9 - ADA compliance to allow handicap accessibility

2.10 - Need to reduce intrusive aquatic plant material - look at indigenous plant communities in Moss Landing

2.11 - Consider link to Vince Dimaggio Park

2.12 - Build on interpretive plant identification by consideration of botanical garden/arboretum

2.13 - Expand trail loop to east side of railroad tracks linked to Tree Commissions tree planting.

2.14 - Wind - for outdoor use can be harsh

2.15 - Build on amphitheater/outdoor performance area in adjacent new land where there are no limits to the number of people

2.16 - Build on international/multi-cultural heritage of Marina using different languages in interpretive signage.

3.0 - Table 3 Input notes

3.1 - Negotiate to remove the towers - offer the tower leasees alternate options; see what it would cost to break the lease.

3.2 - Minimal invasiveness in wetland ( ie. Not “army corps of engineers)

3.3 - Repair and maintain wider path along Reservation Road and or ask City to have property owners across the street build sidewalks for large amount of pedestrian traffic.

3.4 - Replace unattractive and uncomfortable concrete picnic tables with wood.

3.5 - What can be done with the “weeds” and ugly rope fence around “mitigation” area? Get rid of fence, plant other native plants!

4.0 - Table 4 Input notes

4.1 - Parking and lighting near picnic

4.2 - Native botanical garden

4.3 - Replace existing bridge

4.4 - Need parking (not at library)

4.5 - Enhanced corner at Del Monte and Reservation Road

4.6 - Need some paved bicycle paths, loop trail around lake

4.7 - Stream good idea
Purkiss Rose-RSI3

4.8 - Fishing? From overlooks and/or bridges

4.9 - Dog clean up bags

4.10 - Bus services

4.11 - A sense of place

4.12 - Dislike Library, cement in mitigation area, willows in lake, turf,

4.13 - more restrooms closer to amenities

4.14 - Maintenance building?

4.15 - Nighttime security lighting?

5.0 - Table 5 Input notes

5.1 - Cover existing amphitheater area

5.2 - Cut 8,000 sq. ft. off of library

5.3 - Combine interpretive center within the library

5.4 - Allow for Café type lease area on corner or within library - apply ½ cent sales tax for Master Plan area to provide funding for maintenance and/or library staffing.

5.5 - Make trails in Master Plan that would provide for and facilitate linkage of Locke Paddon Park trail to future pedestrian infrastructure outside the park

5.6 - add bicycle racks

5.7 - Lessen the structural emphasis (less Sq. Ft.) in library - Focus on park/open space as much as possible.

5.8 - Durability of improvements

5.9 - Explore shared parking agreements with nearby properties (i.e. courthouse)

5.10 - How much water is available? Long term costs and supply for irrigation and stream (quantity, pump costs, etc.)

5.11 - Short/long term impacts of improved areas onto wetlands. ( nitrates, invasive, foot traffic)

5.12 - Exercise stations along path

5.13 - Be mindful of graffiti

5.14 - Limit lighting - don’t make this Wal-mart -will too much lighting make it unfriendly for wildlife.

5.15 - Clear entrance to access points

1 02449 – Landscape Maintenance

SECTION 02449

LANDSCAPE MAINTENANCE SPECIFICATIONS
1 02449 – Landscape Maintenance
SECTION 02449 – LANDSCAPE MAINTENANCE

I. GENERAL

A. Scope of Work:

Notwithstanding the requirements of these specifications, it is the intent of this document to
ensure that the landscape, plant life, irrigation system and site be maintained in a healthy vigorous growth and well-groomed state at all times.

Contractor performance shall present a professional image, a high standard of quality and technical competence. The Contractor’s prime
responsibility will be to integrate
innovative and progressive elements of high landscape maintenance standards and the objectives as set forth in the specification. The requirements and specifications of this document do not supersede any other applicable standards for public works contracts. Where there are differences, the more stringent shall apply, and the City shall be notified of any necessary changes to the specific operations and materials.

II. MATERIALS

All materials and subsequent change orders used shall conform to the specifications, or as approved in writing by the City. The original job specifications are available at the
City.

III. SUBMITTALS

A. As required by Law, the Contractor must submit to the County Agricultural Commissioner’s office, a monthly record of all Disease Control, Insecticides, Rodenticides and Herbicides used on the project.

B. Soils test shall be performed on an as needed basis. All soil sampling locations shall be approved by the City’s Representative, with results submitted to the City. Soils testing shall be done by an approved soils agronomic testing firm at the Contractor’s expense.

C. Any substituted products or equipment being used which do not conform to the original contract area working drawings, job specification or as specified herein shall be approved by the City in writing prior to use or installation.

IV. GENERAL MAINTENANCE CARE AND PROCEDURES

A. All necessary licenses, permits and/or approvals shall be obtained by the contractor from the City.

B. The Contractor shall furnish all labor, material
s, equipment, tools, office with telephone,
equipment storage and service facilities.

C. The Contractor shall refer to the Special Conditions contained herein for Weekly Maintenance Review procedures and Yearly Maintenance Scheduled Work Notification requirements.

V. Safety

All work performed under this contract shall be performed in such a manner as to provide maximum safety to the public and comply with all safety standards required by CAL-OSHA. The City reserves the right to issue restraint or cease and desist orders to the Contractor when unsafe or harmful acts are observed or reported relative to the performance of the work under this contract.

A. Reporting Safety Hazards, Damage or Malfunction:
2 02449 – Landscape Maintenance

It shall be the Contractor’s responsibility to inspect daily all contract areas and identify any conditions(s) that renders any areas within this contract unsafe, as well as unsafe practices occurring thereon and report any deficiencies immediately to the City
Representative.

1. Notify the City immediately of any unusual and hazardous conditions in the contract area including, but not limited to, restroom plumbing, sewer backups, fallen branches, or any item that creates a hazard or prevents the public’s use of the parks/facilities.

2. Notify City within one (
1) hour of malfunctioning facilities or conditions that may break, malfunction or interrupt the public’s use of the parks/facilities.

3. All playground and sports equipment shall be inspected for vandalism, safety and serviceability daily.

4. Inspect all ha
rdscape playing surface areas for safety hazards, including tripping hazards, holes, or other conditions daily.

5. Contractor shall be responsible to report any unsafe conditions observed for all structures and fixtures, including but not limited to:

a. Light standards and fixtures
b. Walls, fences, gates
c. Trash dumpsters
d. Signage
e. Graffiti
f. Buildings
g. Water Features
h. Play Areas
i. Volleyball nets and posts

B. Walks, Stairways, and Hardscape Areas:

Care shall be taken so that maintenance does not inhibit or endanger pedestrians utilizing walks, stairways, and hardscape areas. This work
should be scheduled to coincide with
mowing or other landscape work in the area. Adequate safety procedures should be followed including signing and roping off areas as necessary. Should work be disrupting to the public or regular traffic flow, it shall be rescheduled to a more convenient time.

C. Work Site:

The Contractor shall maintain all contract areas free of hazards to persons and/or property resulting from their operations.

D. Street Closures, Detours, Barricades:

If work is to be conducted in the public right-of-way, the Contractor shall adhere to all safety rules, using cones, signboards, or other required safety equipment, and obtain all necessary permits and approvals per Work Area Traffic Control Handbook requirements (WATCH book).

If the Contractor fails to provide and install any of the signs or traffic control devices required hereby or ordered by the City staff, st
aff may cause such signs or traffic control
devices to be placed by others, charge the costs therefore against the Contractor, and deduct the same from the next progress payment.

3 02449 – Landscape Maintenance
E. Safety Equipment:

All required and recommended safety devices for all power equipment shall be maintained at all times. Failure to maintain safety devices
will result in the temporary interruption of
work as directed by the City.

VI. PESTICIDE USE AND SAFETY

All materials shall be in strict accordance and applied within the EPA regulations and the California Food and Agricultural Code.

A. General Requirements

The application of pesticides and other chemicals used on the contract areas shall be recorded and submitted monthly to the County Agricultural Commissioner’s Office and City.

Contractor
shall be responsible for accurately maintaining all pesticide application records.

1. There shall be no application of a pesticide without approval by the City.

2. Application of all pesticides shall be only by a properly State Licensed Pest
Control Operator.

3. Non-restricted chemicals shall be used whenever possible to perform pesticide control in landscape areas.

4. All
restricted pesticides and/or chemicals to be used for pest control shall be approved by the City’s Representative prior to use. A written recommendation of the proposed restricted chemicals to be used shall be prepared by a licensed California Pest Control Advisor, and accompanied with a Notice of intent Form to apply restricted/non-restricted materials. A written recommendation shall contain all specified information required for the application of restricted pesticides.

The Contractor shall pay for and obtain all recommendations.

B. Application of Pesticides

1. Timing:

Pesticides shall be applied at times which limit the possibility of contamination from climatic or other factors and the proper life cycle of the pests. Early morning application shall be used when possible to avoid contamination from drift. Applicator shall monitor forecast weather conditions to avoid making application prior to inclement weather to eliminate potential runoff of treated areas.

Irrigation water applied after treatment shall be reduced to eliminate runoff.

When
water is required to increase pesticide efficiency, it shall be applied in quantities in which each area is capable of receiving without excessive runoff.

2. Handling of
Pesticides: Care shall be taken in transferring and mixing pesticides to prevent contaminating areas outside the target area. Application methods shall be used which ensure that materials are confined to the target area. Spray tanks containing leftover materials shall not be drained on the site to prevent any contamination. Disposal of pesticides and tank rinsing materials shall be within the guidelines established in the California Food and Agricultural Code or EPA Regulations.

3. Equipment and Methods:

Spray equipment shall be in good operating condition,
quality and designed to efficiently apply materials to the target area. Drift will 4 02449 – Landscape Maintenance
be minimized by avoiding high pressure applications and using water soluble drift agents.

4. Selection of Materials: Pesticides shall be selected from those materials which characteristically have the lowest residual
persistence. Use of emulsifiable
concentrates shall be used when possible to limit windblown particles. The use of adjuvants will be to increase pesticide efficiency, thereby reducing the total amount of technical material required to gain control.

5. Substitutions:

Wherever a specific type of material is specified, no substitutions shall be allowed without the written consent of the City’s Representative.

6. Certification of Materials: All materials shall be delivered on the site in original unopened containers. Materials shall be subject to inspection prior to mixing by the City’s Representative.

VII. WEED CONTROL

The Contractor shall be responsible for providing a continuous weeding program for all contract areas. Weeding shall be on a weekly basis and shall include “any undesirable or misplaced plant”.

A. Turf:

The use of any chemicals for weed control shall be done by a State Licensed Pest Control Operator who shall follow all guidelines governing his license.

1. A continual ch emical program shall be adopted for control of broadleaf and noxious weeds.

2. All chemicals shall be a
pplied in accordance with regulations of State Agricultural Department.

3. Use extreme caution when using selective weed killers not to damage other plants.

4. During the months of March and September a broadleaf grass pre-emergent shall be applied to all turf areas (cool season grasses only).

5. City
approval must be obtained prior to spraying any herbicide and all spraying shall be done at a time when there is no wind. At first indication of Crabgrass infestation, spray affected areas with an approved spray. Apply Crabgrass killer only on cool days when lawns are in a moist condition. Removal of all weeds shall be a continuous program. Noxious weeds shall not be permitted to grow within the areas assigned as part of this contract, and shall be completely removed and bare turf areas re-sodded. Crabgrass shall not be allowed to become established in any landscape areas maintained by Contractor. Contractor shall apply a Crabgrass pre- emergence herbicide to all turf areas between January 15 th and February 15th.

B. Ground Cover:

Weeds shall be removed completely on a weekly basis, chemically or manually. Weeds may be controlled with pre-emergent herbicides, preferably, but may also be controlled with post- emergent herbicides, and/or by hand pulling.

All ground cover shall be inspected weekly for weed growth. Weeds shall not be allowed to remain growing for longer than one (1) week
without complete removal to include roots,
rhizomes and stolons. Bermudagrass or other noxious weeds shall not be allowed to become established in any ground cover areas. Cultivating of ground cover areas shall be held to 5 02449 – Landscape Maintenance
minimum and cultivated only as necessary to remove weeds. Excessive cultivation may result in root damage to ground covers and shrubs.

C. Trees:

All trees in ground cover areas shall have open soil maintained immediately around the base of the trunk. Keep this area free of weeds and avoid frequent soil cultivation which destroys shallow roots. Tree wells shall be free of weeds at all times.

D. Shrubs:

Weeds shall be removed from beds weekly, chemically or manually. Bermudagrass and other noxious weeds shall not be allowed to become established.

E. Walkways, Paved Surfaces and Hardscape Areas:

Contractor shall be responsible for controlling weeds by mechanical or chemical means, growing in cracks, curb and gutter, or expansion joints and areas contiguous to the
contract areas as required.

VIII. TURF CARE

Lawns shall be maintained to be in the healthiest growing condition possible. Supply the necessary services as follows:

A. Maintenance Schedules:

Scheduling of mowing and turf care maintenance time shall be submitted to the City for approval. Work schedules for mowing, aeration and dethatching operations shall be changed as determined by the City’s Representative to ac
commodate public use by various user groups
and recreations activities.

B. Mowing:

Turf in this contract shall be mowed with power propelled mowers equipped to mow all collect clippings in one operation. Rotary movers shall be used to mow tall fescue or other cool-season turf areas. Reel mowers equipped with rollers will be required to mow Bermudagrass areas. The City’s Representative may in some instances allow mowing without the attached collection device, providing the machine is equipped with approved safety
features.

Labor and materials shall be provided by the Contractor for re-seeding or re-sodding to any failing turf areas as becomes necessary due to contractor neglect.

Care shall be exercised during the mowing operation to prevent damage to trees and other physical obstacles located within the turf areas. Do not mow wet areas. Alternate mowing patterns whenever possible to prevent wheel ruts. If ruts are made, Contractor will make repairs at his own expense.

All trash, litter and debris shall be removed from the landscape prior to mowing.

The Contractor shall not interfere with the public use of the premises and shall conduct its
operations as to offer the least possible obstruction and inconvenience to the public or disruption to the peace and quiet of the areas within which the services are performed.

1. Cool Season Grass: Turf shall be mowed (maintained) with rotary type mowers at a height of three inches (3”) during Spring, Summer and Fall. In the Winter turf areas shall be mowed at a height of two inches (2”). All turf areas shall be cut 6 02449 – Landscape Maintenance
at a regular weekly intervals. The turf should never be cut more than one/third (1/3) of the top growth or approximately three-quarter inch (3/4”) at any one
mowing. Avoid Scalping.

2. Open Turf Fields: Mow turf areas 52 weeks per year on a regular schedule to be approved by the City. The schedule shall provide that all turf areas will be mowed once per week. Mowing of turf at each park facility, shall be completed in one operation. Care should be given to mow without compactions of turf.

C. Edging and Trimming:

Turf edges adjacent to walks, curbs, paving mow strips, walls, fences, poles, valve boxes, buildings, shrub areas and other physical obstructions shall be trimmed weekly in the
Spring, Summer and Fall seasons and as needed for a neat appearance during the Winter months.

1. Grass shall be neatly trimmed away from sprinkler heads to ensure proper coverage and operation. Trim turf immediately adjacent to sprinkler heads, as directed by the City’s representative and under no circumstances remove an area larger than the head diameter. Trimming around sprinkler heads or cutouts in the turf area with an edger will not be permitted. Weed or turf killer shall not be used.

2. “Weed Eaters” or similar equipment shall not be used around trees or shrubs. All trimming or edging around trees and shrubs shall be accomplished by spraying an eight inch (8”) minimum width not to exceed twelve inches (12”) maximum width area around the plant with an herbicide per manufacturer’s application rate.

D. Equipment Cleaning:

To help prevent contamination of turf areas, thoroughly “wash off” all equipment that was used at another site prior to mowing or edging any areas on the site.

E. Equipment Condition:

Machinery and equipment used by the Contractor shall be clean and well maintained at all times to ensure proper operation under this Agreement.

All mowing and trimming equipment shall be in proper adjusted and blades shall be maintained in a sharp manner. The reel blade adjustment shall provide a uniform level cut without
ridges or depressions. Mowers shall be maintained to provide a smooth even cut without tearing of the leaf blade. Always keep mowers and edgers sharp, so as to cut the tips not tear them off. Torn grass blades which have a brown “haze appearance” are not acceptable. All equipment shall be subject to inspection and approval by the City’s Representative.

F. Clipping Disposal:

All grass clippings shall be collected and removed from turf areas at the site(s) and disposed off site in an approved manner prior to the completion of the day’s mowing
operations or the end of the day, whichever occurs first. Curbs, gutters, sidewalks, etc., shall be cleaned after each edging by blowers, vacuum or other approved methods. Refer to Section XVII “Walks and Hardscape Care”, of this specification.

G. Watering Turf:

Water shall be applied as frequently as needed (as weather conditions require) to maintain proper growth and replenish soil moisture below the root zone. All applications of water 7 02449 – Landscape Maintenance
should be in the evening or early morning hours, so as not to interfere with public use of the contract areas. If an areas appears stressed during the day, a light application of water should be applied at the at time.

It is the Contractor’s responsibility to apply the
water evenly. In the event of automatic irrigation disruption or operation of manual irrigation systems, the Contractor shall hand water lawn and ground cover areas a minimum of twice per week in the Winter and four(4) times per week in the Summer. Water runoff across pavement surfaces and into gutters shall be avoided. All turf areas requiring irrigation shall be accomplished no later than 6:00 a.m.

H. Fertilization:

Lawns shall be fertilized four (4) times annually. Fertilize one (1) time per year during the
month of January using a ammonium nitrate fertilizer, 33-0-0, at the rate of five pounds (5 lbs.) per 1,000 square feet, or approved equivalent program. A “complete fertilizer” with an analysis of 16-6-8, at the rate of six pounds (6 lbs.) per 1,000 square feet shall be used three (3) times per year, during the months of April, July and October, or approved equivalent program.

1. All fertilization shall be included with the landscape maintenance of each contract area. The Contractor sh
all supply and transport all required fertilizers as a part of his cost included in the bid to the City.

I. Aeration:

All turf areas shall be aerated by removing half inch (1/2”) diameter by three inches (3”) deep cores with an aerator machine at not more than six inch (6”) spacing. Aerate compacted or stressed areas as required to increase water penetration and reduce runoff.

Contractor shall flag all irrigation sprinkler components prior to commencement of work.

Cores shall be removed and dumped in an approved manner after completion of aeration. In addition, the tops of all mounds and localized compacted dry spots shall again be aerated between
the intervals above as necessary. All damaged areas larger than four inches by four inches (4”x4”) shall be seeded on an as needed basis at no additional cost to the City.

1. Parks:

Aerify park sites turf once (1) per year between the months of February and March.

J. Dethatch:

1. All turf areas shall be dethatched once per year between September and October.

2. Dethatching sh
all be accomplished by use of a “vertical cut type” dethatch machine approved by the City’s Representative.

3. Contractor shall flag all sprinkler components prior to dethatching.

4. All thatch and debris shall be immediately removed upon completion.

K. Insect, Disease and Pest Control:

The Contractor shall regularly inspect all landscape areas for presence of disease, insect or
rodent infestation. The Contractor shall advise the City within four (4) days if disease, insect or rodent infestation is found; a State Licensed Agricultural Pest Control Advisor shall identify the disease, insect or rodent and specify control measures to be taken using legally approved materials and methods, and upon written approval of the City, the Contractor shall implement the approved control measures. The use of an chemicals for insect and disease control shall be done by a State Licensed Pest Control Operator who shall follow all guidelines governing his license.
8 02449 – Landscape Maintenance

1. The Contractor shall provide complete and continuous control of all plant pests or diseases. The Contractor shall select and supply proper materials and personnel to comply with all City, County, State and Federal Regulations or Laws.

2. Contractor will assume responsibility for use of all chemical controls. Pests and diseases to include, but not be limited to all insects, mites, other invertebrates, pathogens, nem
atodes, and vertebrates. Chemical controls to include necessary use of herbicides and plant growth regulations. Pests may be controlled by mechanical means as well as chemical.

3. Extreme caution shall be used when spraying insecticides and fungicides. Only
spray when there is no wind. City approval must be obtained prior to spraying any insecticides or fungicides, 48 hours in advance.

4. Approved control measures shall be continued until the disease, insect or rodent is controlled to the satisfaction of the City. The Contractor shall utilize all
safeguards necessary during disease, insect or rodent control operations to ensure safety of the public and the employees of the Contractor.

L. Rodent Control:

When rodent infestation becomes evident, the Contractor shall at once proceed to exterminate and destroy the rodents by poisoning, gassing, trapping or other appropriate means.

1. Poisoning:

To poison rodents, use a grain treated with an anticoagulant substance placed in bait stations. Bait must be checked daily and made available at all times. Six (6) or seven (7) consecutive feedings are usually necessary. All dead rodents shall be properly disposed off-site.

2. Trapping: May be done in any season by the use of an approved rodent trap. All dead rodents shall be properly disposed off-site.

3. Fumigation: There are several types of toxic gasses available some of which require
a special permit from the Orange County Agriculture Commissioner.

Fumigation is most effective in the Spring or when soil moisture is high.

Fumigation is not effective during periods of hibernation or aestivation since the burrows are plugged with soil.

Rodent control (poisoning or fumigation) as noted above, shall be done per the specif
ications of a State Licensed Agricultural Pest Control Advisor and shall be done under the direct supervision of a State Licensed Pest Control Operator who shall follow guidelines governing his license.

IX. GROUND COVER CARE

Ground cover beds shall be maintained in an attractive condition at all times. All ground cover shall be inspected weekly
and all debris including leaves branches, paper, bottles, etc. shall be removed daily. Supply the necessary services as follows:

A. Edging and Trimming:

“Weed Eaters” shall not be used to edge ground cover unless approved by the City’s Representative. All ground covers shall be pruned, sheared or thinned neatly away from
shrubs, trees, walks, curbs, header boards, etc. Ground covers shall not be trimmed vertically unless approved by the City and shall be thinned out, as needed, to avoid matting and to achieve an overall even appearance. Keep ground cover trimmed back from all 9 02449 – Landscape Maintenance
controller units, valve boxes, quick couplers or other appurtenances. Ground cover shall be trimmed six inches (6”) back from the buildings, walls, fixtures, signs, shrubs, etc.

Remove ground cover from all above ground structures unless the City directs the allowance of
ground cover growth over wall tops, curbs, etc. to prevent graffiti or for aesthetic reasons.

Ground covers are to be neatly trimmed away from sprinkler heads to ensure proper coverage and operation. Trim ground covers away from sprinkler heads by tapering away from head.

Holes shall not be cut into ground cover areas. As ground covers grow in height, risers may need to be extended to properly clear top of ground covers.

B. Watering:

Be cautious not to over water shrub and ground cove areas. Water enough to ensure moisture penetrations throughout the root zone to a depth of proximately eight inches (8”). Program irrigation systems to maintain
a precipitation of one-half inch (1/2”) per week during the growing season. During prolonged rainy periods discontinue irrigation sequences. Ponding of water will not be allowed and should be avoided at all times.

C. Fertilization:

Vigorous growth and good color must be maintained at all times. Any non-native ground cover beds shall be fertilized two (2) times per year, or as directed. Fertilize during the months of April and October using a “complete fertilizer” with an analysis of 16-6-8 at the rate of six pounds (6 lbs.) per 1,000 square feet,
or approved equivalent program.

When soils tests indicate deficiency, the soil laboratory’s recommendations shall be followed. Also refer to the Yearly Landscape Maintenance Schedule.

D. Pest and Rodent Control:

1. Snails and Slugs: Treat for snails and slugs as needed. Treatment shall be as approved by the City and may vary from one project areas to another. In general, broadcast and approved g
ranule, pellet or meal at the recommended rate of three (3) times a year minimum; Spring, late Summer and Winter and/or spray an approved insecticide as needed for complete snail and slug control based upon a program designed by a State Licensed Pest Control Operator.

2. Rodent and Pest Control: Refer
to Section VIII, “Rodent Control”, of this
specification for approved methods of spray control.

3. Insect icide and Fungus Control: Refer to Section VIII, “Insect, Disease and Pest Control”, of this specification for approved methods of spray control.

E. Plant Material Replacement:

Following acceptance of contract areas, it shall be the Contractor’s responsibility to maintain all plant material in a satisfactory manner and to replace, at Contractor’s expense, dead or severely damaged plant material with equal size and quality materials at City’s direction. The Contractor, after notific
ation of City’s authorization, shall remove
and replace, at no cost to the City, any tree, shrub, turf or ground cover which is damaged or lost due to Contractor or his employees’ negligence through improper use of horticultural practices, pesticides, watering, failure to control rodents and insects or improper use of equipment.

Any ground cover, tree and/or shrub that appears to have more than one/half (1/2) of its foliage in a declining state shall be brought to the City’s attention immediately. Check plant for root over-watering or drainage problems and repair the problem prior to
10 02449 – Landscape Maintenance
replacement. Replacement plants shall be of a size condition and variety acceptable to the City. The Contractor shall pay for
all replacement plants, including materials,
transportation and labor unless the City determines that the plant was lost due to an “Acts of God”, damaged by others, or as a result of an event without control or negligence by the Contractor.

X. TREE CARE

All trees shall be checked monthly for any damage, special water needs, etc. and treated as necessary. Undesirable conditions shall be
eliminated per accepted landscape maintenance
practices. The Contractor shall maintain all trees, whether specifically mentioned or not, in a healthy condition at all times.

The Contractor is responsible for maintenance pruning of trees to a height of fourteen feet (14’) above the ground. All trees will be trimmed at least once a year and palms will be trimmed as
needed throughout the year.

A. Pruning:

Pruning shall be performed as an on-going operation by the Contractor, and shall be done under
the direction of the City’s Representative. Prune trees to select and develop permanent branches that have a smaller diameter than the trunk or branch to which they are attached. Remove all dead, diseased or damaged growth; eliminate narrow V-shaped branch forks. Reduce topping and wind damage by removing crossover branching and by thinning out crowns. Prune to control growth within the trees’ space limitation, to maintain a natural form and to allow head clearance. Prune two sample trees of each genus and species under the direction of the City’s Representative for approval and control purposes, prior to proceeding with balance of tree pruning work.

1. Young Tree Pruning: Lower
branches shall remain in a “tipped back” or pinched
condition, leaving as much foliage as possible to promote caliper trunk growth.

Stripping of lower branches will not be allowed. Lower branches shall be cut flush with the trunk only when the tree is able to stand without support.

2. Evergreen Tree Pruning: Evergreen
trees (trees that are not deciduous) can be
pruned or thinned at any time when necessary. Prune for appearance and safety and remove dead or broken branches. Prune especially during the months of September and October to prepare the trees for the windy season. For safety reasons remove any part that may become a hazard by falling.

a. Pines:

Pines shall not be pruned except as corrective or preventative maintenance. Removal of lower branches for turf maintenance is allowable, but in no case shall branches be removed to expose more than 2’ of the trunk.

3. Deciduous Tree Pruning: The pruning of deciduous trees shall be done during the dormant season, December, January and February except for blooming trees which will be pruned after blooming. However, if a
tree becomes damaged or constitutes a
health or safety hazard, it shall be pruned at any time as required. All pruning cuts shall be made flush with the trunk, lateral branches or buds. “Stubbing” of branches will not be allowed.

B. Staking and Guying:

Tree stakes, ties and guys shall be checked at least monthly and adjusted as needed. Tree ties shall be inspected to prevent bark wounds caused by abrasion and ties shall be
adjusted to prevent girdling. Before any stakes are removed, remove tree ties and allow the tree to remain without support for a period of time to observe structural stability of 11 02449 – Landscape Maintenance
the tree. The tree must retain its upright position and this position must be held regardless of moisture content of the soil. Remove tree stakes only when tree has proven to be structurally stable. Any restaking shall be done with originally specified
materials. Stakes shall not be placed closer than eight inches (8”) from trunk of tree.

Guying will, over time, stretch or loosen. Adjust as needed to retain a taut position, until such time when guying is removed. Any tree that is damaged due to improper staking or tying shall be replaced at the Contractor’s expense. Replace broken stakes and damaged guys as required. Damaged trees shall be staked within twenty-four (24) hours of identification of damage by Contractor, City or the public’s notification to Contractor.

Replacement stakes or new staking shall be completed within five (5) days. (Labor only, materials will be paid for by the City as “Extra Work” materials.)

C. Tree Guards:

Newly planted trees in turf areas shall be inspected at the base of the trunk for tree guards weekly. Contractor shall report any missing tree guards to the City immediately.

Tree guards shall only be removed as directed by the City’s Representative.

D. Watering Basins:

Watering basins shall be properly maintained on all trees, shrubs, and vines to ensure adequate water penetration. Failure of the irrigation systems to provide enough deep
moisture will not alleviate the Contractor from providing adequate moisture to any material. Rake out water basins only as directed by the City’s Representative.

E. Fertilization:

All trees shall be deep-fed or vertical mulched as needed or determined by the City’s Representative by means of one inch (1”) diameter holes drilled two feet (2’) deep at six foot (6’) intervals around the drip line and filled with 12-12-6 commercial fertilizer, or approved equivalent program.

F. Pest Control:

All trees should be inspected regularly for disease, fungus or insect infestation and sprayed accordingly as needed.

Upon notification by City, Contractor shall provide labor, equipment and materials to spray pesticides in the manner specified by a State Licensed Pest Control Advisor and the City.

G. Clearance and Visibility:

Prune trees to allow necessary clearance for the safety of pedestrian traffic, vehicle circulation and signage, etc. Prune trees along sidewalks to allow ten feet (10’)
clearance for pedestrians and fourteen feet (14’) above curb and gutters for vehicular traffic, and two feet (2’) from all walls and structures or as directed by the City’s Representative.

H. Plant Replacement:

Refer to Section IX, “Plant Material Replacement”, of this Specification.

XI. SHRUB AND VINE CARE

All shrubbery shall be checked weekly for any breakage or damage, special watering needs, etc., and treated as necessary. All undesirable conditions shall be eliminated per accepted landscape maintenance practices. All shrubs shall be maintained in a healthy vigo rous condition. Remove all
spent flowers, flower spikes, all leaves and debris, soot and accumulated dirt from plant areas.

12 02449 – Landscape Maintenance
A. Pruning:

Pruning shall be performed as an on-going operation, and shall be done under the direction of the City’s Representative, not allowing plants to develop stray, undesirable growth.

Trimming, pruning, thinning and training are functions to be done as needed to maintain a pleasing appearance. Any shrub under stress should be trimmed to reduce evaporation. All pruning shall be done to a naturalistic shape, not hedged into geometric forms. The design intent is to have naturalistic shrub masses not individual shrub forms or standards.

Accomplish pruning by selectively removing woody stems from inside shrubs on an as needed basis as directed by the City’s Representative. Excessive pruning or stubbing back will not be permitted. Top shrubs only when necessary for appearance and after interior selective branch pruning has been completed or as directed by the City’s Representative.

Shrubs shall be pruned and thinned using hand-held shrub pruners. Hedge shears and clippers shall only be used if approved, in writing, by City’s Representative.

B. Watering:

Refer to Section IX, “Watering”, of this specification for watering in ground cover and shrub areas. Maintain a watering basin around all shrubs and vines on slope areas to insure adequate water penetration. Rake out basins only as directed by the City’s
Representative.

C. Fertilization:

Shrubs located in ground cover areas will not require additional fertilizing. See Section IX, “Fertilization”, for fertilization application in ground cover areas.

D. Pest Control:

Check all plant material in landscaped areas weekly and apply pesticides at the first sign of infestation.

E. Clearance and Visibility:

Where shrubs occur in close proximity to sidewalks, curbs, roadways and parked cars, prune to allow movement without interference
from branches and foliage. Prune shrubbery to allow
necessary clearance for the safety of pedestrian traffic, vehicle circulation, signage, etc., and a minimum of two feet (2’) from walls and structures or as directed by the City’s Representative.

F. Plant Replacement:

Refer to Section IX, “Plant Material Replacement”, of this specification.

XII. IRRIGATION SYSTEMS CARE

The Contractor will receive all irrigation systems in a sound working order at the beginning of contract. If any system is found to be otherwise
at the start of work, the City shall be notified
immediately and necessary repairs will be at no cost to the Contractor. At the close of the contract period, all irrigation systems will be checked by the City’s Representative, and all irrigation systems shall be returned to the City in a satisfactory condition. Any faulty portion shall be repaired or replaced by the Contractor at not cost to the City.

A. Irrigation Repair and Operation:

1. Irrigation system components damaged as a result of Contractor’s neglect shall be repaired or replaced by the Contractor at no cost to the City. Normal wear and tear of systems, vandalism, accidental breakage by others, or so-called “Acts of 13 02449 – Landscape Maintenance
God”, are conditions under which the Contractor is not directly responsible and repairs shall be paid for by the City. The Contractor
shall notify the City’s
Representative the same day of discovery of damage to irrigation system components caused by vandalism, “Acts of God”, vehicular damage, theft or mysterious damages that do not result from the performance of the work by the Contractor. Upon receipt of the City’s written authorization, repair of said damage as soon as possible after discovery, billing the City for the cost of such repair on the subsequent monthly billing statement. Failure to report any damages will constitute Contractor making repairs at his own expense. Any replacement of irrigation system component under this sub-paragraph A shall be original equipment types where known. Any substitutions for replacement equipment shall be approved, in writing, from the City’s Representative prior to doing work.

2. Irrigation shall be done
by the use of automatic sprinkler systems, where available and operable; however, failure of the existing irrigation system to provide full and proper coverage shall not relieve the Contractor of the responsibility to provide adequate irrigation with full and proper coverage to all areas in the work site.

3. Any damages to public
or private property resulting from excessive irrigation water or runoff shall be charged against the contract payment unless immediate repairs are made by the Contractor to the satisfaction of the City.

4. The Contractor shall keep controller and valve boxes clear of solids and debris and maintain the irrigation
system including the replacement, repair, adjustment, raise or lower, straighten, and any other operation required for the continued proper operation of the system from the water meter throughout the work site. Repair of replacement includes, but is not limited to: sprinkler system laterals (piping), sprinkler mains (pressure lines), sprinkler control valves, sprinkler controllers, sprinkler heads, sprinkler caps, sprinkler head risers, valve covers, boxes and lids, including electrical pull boxes and lids, valve sleeves, quick coupler valves and hose bibs, etc.

5. All
irrigation repairs shall be made within 24 hours or prior to the next irrigation cycle. All repairs shall be made in accordance with City of Orange Standard Irrigation Specifications.

6. Contractor shall maintain an adequate stock of
medium and high usage items for
repair of all irrigation systems.

B. Monitoring Systems:

1. The Contractor shall inspect the irrigation systems for broken and clogged heads, malfunctioning or leaking valves, or any other condition which hampers the correct operation of the system. Authorization must be obtained from the City before proceeding with work not covered under normal maintenance work and the malfunctioning sprinkler system area shall be irrigated by a portable irrigation method until all authorized repairs have been completed to the City’s satisfaction.

Each irrigation controller(s) and system shall be checked weekly for proper water scheduling and coverage. The Contractor shall clean and adjust sprinkler heads as needed for proper coverage. Each system shall be manually operated at the irrigation controller and observed on a monthly basis. Make all necessary adjustments to heads which throw onto roadways, walks, windows, park facilities or out of intended area of coverage.

2. The Contractor shall turn off irrigation systems during periods of rainfall and
times when suspension of irrigation is desirable to conserve while remaining within guidelines to good horticulturally acceptable maintenance practices. 14 02449 – Landscape Maintenance

3. One man shall have responsibility of operating and knowing the irrigation system and
his duties shall be to adjust controllers, observe the effectiveness of the irrigation systems and make minor adjustments and repairs to systems.

C. Coverage/Application Rate:

Generally, watering shall be done at night, between the hours of 11:00 p.m. and 6:00 a.m., unless otherwise directed by the City. The
Contractor shall operate systems and irrigation
heads as seasonal conditions require. During extremely hot weather, over-extended holiday periods and during or following breakdown of systems, the Contractor shall provide adequate personnel and materials as required to adequately water all landscaped areas. When breakdowns or malfunctions exist, the Contractor shall water manually by whatever means necessary to maintain all plant material in a healthy condition. Dry conditions shall not be permitted to develop.

D. Tests:

The Contractor shall test the soil in turf and ground cover areas and around trees and shrubs monthly or as necessary with soil probes to determine that the proper amount of
water is being applied at all times. This information shall be used to adjust watering times on the controller and supplemental hand or deep watering as necessary. The Contractor shall make the soil probe available at all monthly walk-through inspections.

E. Systems Maintenance:

Once a year during the month of March, the Contractor shall clean valve boxes, remove intruding soil and replace gravel as originally specified. Once a month, the Contractor shall wipe down the equipment in the controller cabinet to remove all dirt and dust. All covered electrical connections shall be sprayed
with compressed air (i.e., inside
controller). All exposed electrical connections shall be sprayed with silicone (i.e., terminal strips).

F. Maintenance Work Not Included:

Testing, certification and service of the backflow prevention device(s) shall be done by others.

However, it shall be the Maintenance Contractor’s responsibility to notify the City should a malfunction occur.

XIII. SURFACE DRAINAGE FACILITIES

A. All surface drainage devices such as concrete ‘V’ ditches, bench drains, swales, inlets, and
other surface drains shall be inspected monthly or more often as necessary and kept free of all algae, debris, vegetation, soil, etc., which would preclude their proper, intended function.

B. All landscape drainage devices shall be routinely
inspected and flushed of all foreign
matter in order to maintain their proper, intended functioning.

XIV. SECURITY LIGHTING FACILITIES

A. The lamp surfaces of all security lights shall be routinely wiped clean of silt, dust and residue which diminishes their intended illumination. All replacement of lamps or equipment, repairs or adjustments shall be in accordance with City approved plans and specifications.

B. Once a month during the first week of the month, a night inspection shall be performed on all non-functioning light identified for repair and/or bulb replacement. 15 02449 – Landscape Maintenance

XV. GROUNDS MAINTENANCE CARE

A. General Maintenance:

The Contractor shall provide grounds maintenance.

1. All
areas shall be inspected daily and maintained in a neat, clean, and safe condition at all times.

2. All broken glass and sharp objects shall be removed daily.

3. All animal feces or other materials detrimental to human health shall be removed from the park areas daily.

4. Decomposed gra nite areas shall be kept level at grade at all times, free of weeds, trash and debris.

B. Barbecue Grills:

All barbecue grills shall be emptied of all ashes twice weekly, every Monday and Friday.

C. Drinking Fountains:

All drinking fountains shall be kept clean and operational at all times.

D. Park Amenities:

Benches, picnic tables and play equipment shall be cleaned weekly or more often as needed.

E. Trash/Litter Collection and Disposal:

The Contractor shall inspect all parks prior to 11:00 a.m. at least two (2) times per week, removing all litter from
turf, planters, sandlots, walkways, parking lots, receptacles and dumpster enclosures.

1. Trash, litter, and other debris from the park site as well as trash and litter blown by the wind or deposited by persons passing by or visiting the Contract Areas shall be collected. All paper, trash, cans, bottles, etc., shall not be dumped on- site in trash dumpsters at contract areas, but should be disposed of in a legal manner at the Contractor’s expense off site.

2. The
Contractor shall respond within an hour during regular working hours to the City’s direction regarding litter pick-up. If refuse or litter is not removed during daily site visit, said litter or debris will be considered an emergency and removed immediately upon notification by the City. Failure of said removal may result in deduction of payment for that date or week.

3. Leaves, grass clippings, branches, weeds and any other landscape debris accumulated from the landscape areas shall be disposed of off-site the same day the debris is accumulated.

F. Trash Containers:

Trash containers provided by the City shall be inspected two (2) times per week and emptied as
often as required and washed after emptying (when necessary) to be determined by the City’s Representative. Contractor shall provide approved plastic liners (40” x 48” x .74 16 02449 – Landscape Maintenance
minimum or approved equivalent) for all trash containers at Contractor’s own expense.

Trash liners shall be changed two (2) times per week or more often as required.

G. Tree Wells:

Trash, leaves and debris shall be removed from tree wells weekly.

H. Greenwaste/Land Diversion Program:

The Contractor shall comply with any adopted City programs for waste reduction/recycling effective during the period of the Contract.

XVI. WALKS AND HARDSCAPE CARE

A. General:

During each site visit all concrete and asphalt playing surfaces, driveways, parking lots, sidewalks, and picnic slab areas shall be checked and cleaned. Work shall be scheduled so as to not interfere with normal playing activity.

1. All contract areas shall be inspected daily and maintained in a neat, clean, and safe condition
at all times. Leaves, branches and other debris shall be collected and removed from contract areas.

2. All contract areas shall be swept weekly or more often as required to remove all deposits of silt and/or sand and glass.

3. Expansion joints and cracks shall be kept free of weeds at all times.

B. Sweeping, Vacuuming and Blowing Off Walks and Stairways:

All walks and stairways shall be kept clean at all times; they shall be swept or vacuumed weekly or more often if necessary.

1. All walk
and stairways shall be kept free of debris, leaves and other debris from the landscape Areas as well as trash and litter blown by the wind or deposited by persons passing by or visiting the site. Debris shall be collected two (2) times per week. All paper, trash, etc. should be dumped off site in a legal manner at the Contractor’s expense.

2. All walks and stairways shall be kept free of dirt, leaves and other debris from the maintenance operations as well as trash and litter blown by the wind or
deposited by persons passing by or visiting the site. Debris shall be collected two (2) times per week. All paper, trash, etc., shall be dumped off site in a legal manner by the Contractor.

3. Work shall
be coordinated with mowing or other maintenance work on the area. All gutters within the maintenance area shall be kept clean of grass clippings and miscellaneous trash. All grass clippings shall be removed (not scattered) from gutters the same day mowing and edging take place.

C. Dog Droppings:

Shall be removed when found during maintenance operations. Walks shall be hosed off after droppings are removed.

D. Hosing Off Walks and Stairways:

17 02449 – Landscape Maintenance
In general, all walkways and stairways shall be hosed off as required by the City in place of sweeping concrete as described above. Care s
hall be taken so that this does not inhibit
or endanger pedestrians utilizing walks and stairways. This work should be scheduled to coincide with mowing or other maintenance work in the area.

E. Street Clean-Up:

Street sweeping is maintained under a separate contract and is not a part of this maintenance work. The Contractor shall, however, remove and disposed of off site, at an approved dump site, all grass clippings and miscellaneous debris or trash blown into the parking lot and streets by the wind or deposited by persons passing by or visiting the site. Grass clippings shall be cleaned from gutters the same day mowing takes place.

XVII. SAND COURT CARE

A. General:

These areas shall include tot lots, play areas, volleyball courts, horseshoe pits, etc.

1. All tot lot areas shall be raked to remove leaves and debris two (2) times per week.

2. Sand
in play areas must be kept clean and maintained for safe playing. Each sandlot shall have trash and glass removed and depressions filled in weekly and rototilled quarterly.

All sand areas shall be rototilled to the maximum depth that will allow complete loosening
of the sand but will not cause lower base materials to be mixed in with the sand. After rototilling, all areas shall be raked level.

3. Sand around the edge of sand lots shall be swept, using a hand broom, and the sand shall be put back in the sand lot. Use of blowers will not be allowed.

4. On Monday and Friday of each week all sand areas shall be raked level and kept free of any foreign debris.

5. All sand areas shall be maintained weed free.

6. Sand shall be replenished as necessary to maintain optimum level in each area, generally six inches (6”) below the top of the concrete curbing but dependent upon play equipment footing and final level shall be determined by the City’s Representative. Replacement sand shall be washed plaster sand or approved equivalent at no extra cost to the City.

7. In the event of inclement weather if at anytime the sand court areas become flooded and
there is standing water, it will be the Contractor’s responsibility to remove water immediately.

XVIII. DRESS CODE AND APPEARANCE

The Contractor shall be required to provide company uniforms, with company name, approved by the City for personnel assigned to the contract areas. Sufficient changes s hall be provided to present
a neat and clean appearance of landscape personnel at all times.

The proper uniform includes:

A. Safety Equipment:

18 02449 – Landscape Maintenance
All employees, when operating power equipment, shall have the proper safety devices in place such as face shields, ear protectors, eye goggles, dust masks, etc.

B. Shoes:

Safety leather boots, or shoes, in good condition. No sandals or tennis shoes shall be worn on the job. In the event that
tennis shoes or sandals are worn, the City’s
Representative may suspend work for that day.

C. Company Shirts:

Shall be worn by Contractor’s personnel at all times.

XIX. EXTRA WORK

The City may, from time to tome, need additional landscape maintenance services which shall only be authorized by the City’s Representative as
stipulated in the contract and upon execution of the
contract documents. Extra work shall be performed by the Contractor or by competitive bid option at the discretion of the City.

A. In the event the Contractor is required by the City and agrees to perform extra work, the following procedure shall govern such work:

1. When required by the City, an estimate of cost will be submitted to the Department of Community Services for approval prior to work being done. The Contractor shall maintain records sufficient to distinguish the direct cost of other operations. He shall furnish reports of extra work on forms furnished by the Contractor, itemizing all costs for labor, materials and equipment rental. The report shall include hours worked. The following procedure will govern such extra work.

2. Work will be executed under the direction of the City’s Representative on a time and materials basis or an agreed lump sum price depending on the nature of the
work.

3. City will issue a work request for such extra work to be performed.

4. Extra work will not be initiated without written authorization, except in emergency call-out situations. Contractor agrees that any services performed which are not authorized by the delegated City’s Representative, as stipulated in the contract, may result in non-payment by the City.

B. Extra work may include, but not be limited to, the following:

1. Replacement of plant materials due to failures beyond the Contractor’s control.

2. Replacement of worn out damaged sprinkler heads, valves, quick couplers, etc.

3. Additional treatment req
uired for planting or soil as not set forth specifically in this Specification.

4. Remedial landscaping.

5. Repairs or replacements due to vandalism or “Acts of God”.

C. Labor costs shall be based on the proposed wage scale for each type of workman.

D. The City’s Representative is limited to issuance of orders, directions, notices and instructions, pursuant to the scope of landscape maintenance. The City shall not be 19 02449 – Landscape Maintenance
obligated to pay for extra services which are not supported, in writing, by a Field Change Order Form.

E. Contractor shall submit invoices for Extra Work separate from regular monthly maintenance billing and shall detail: 1) site location, 2) services performed, 3) amount, 4) City’s
Representative which ordered or authorized services.

XX. WEEKLY MAINTENANCE REVIEW

A. The City shall inspect the work every week to
ensure adequacy of maintenance and methods of
performing the work are in compliance with the contract. However, such inspection or failure of City to inspect shall not relieve the Contractor of the duty to provide continuous inspection of the work area.

B. The Contractor shall meet bi-weekly with the
City’s Representative to review the
Contractor’s schedules and performance, resolve problems and perform field inspections as required. Should such inspections find deficient performance or service failure, the liquidated damage clauses of this contract will be enacted.

C. Bi-weekly maintenance site review meetings followed by a satisfactory completion of any or all punch list items generated thereof is a required prerequisite for payment of monthly invoices.

XXI. REPORTS, SCHEDULES AND FORMS

The Contractor, as part of this agreement, will submit reports and schedules as requested. Failure to submit reports and schedules in a timely manner may
result in a delay of monthly payments. Such
reports must be detailed, thorough and may include, but not be limited to, the following:

A. Weekly Maintenance Schedule(s):

1. Contractor
shall provide a weekly maintenance schedule(s) to the City. The schedule(s) shall indicate the frequency of time and days of the week services are to be performed.

2. Notifi
cation of change in scheduled work must be received by the City at least 48 hours prior to the scheduled time for the work.

3. Contractor shall adjust his work schedule to compensate for all special events, holidays and inclement weather.

B. Pesticide Use Reports

C. Hazards Reports

D. Cost information to perform extra work for upgrading specific areas.

E. Suggestions for improving problem areas.

F. All forms and schedule(s) shall be of a format supplied by or approved by the City.

XXII. Unit Price Information

All bidders are required to provide the following
unit cost figures. The figures shall be used by
the City for adding to or deleting payment deductions due to performance failure from the contracting work. All unit prices shall include labor and material complete installation where required.

20 02449 – Landscape Maintenance
A. Labor and Equipment Hourly Rates and Unit Costs

1. Landscape Maintenance Labor
$__________per hour

2. Landscape Maintenance Leadworker $__________per hour

3. Landscape Maintenance Supervisor $__________per hour

4. Irrigation Technician $__________per hour

5. Pest Control Applicator $__________per hour

6. Tree Trimmer $__________per hour

7. Equipment Operator $__________per hour

B. Turf Care Unit Cost

1. Mowing $__________/1000 s.f.
$__________/Acre

2. Edge & Trim $__________/1000 l.f.

3. Weed Eat Turf $__________/1000 l.f.

4. Chemical Edge 6” $__________/1000 l.f.

5. Fertilization $__________/1000 s.f.
$__________/Acre

6. Aerification $__________/1000 s.f.
$__________/Acre

7. Renovation
Dethatch $__________/1000 s.f.
$__________/Acre
Dethatch/ Overseed $__________/1000 s.f.
$__________/Acre

8. Weed
Control $__________/1000 s.f.
$__________/Acre
$__________/Hour

C. Ground Cover Care Unit Cost

1. Edge & Trim $__________/1000 s.f.
$__________/Acre

2. Mow/Cut
back $__________/1000 s.f.
$__________/Acre

3. Fertilization
$__________/1000 s.f.
$__________/Acre

4. Weed
Control $__________/1000 s.f.
$__________/Acre
$__________/Hour

5. Pest
Control $__________/1000 s.f.
21 02449 – Landscape Maintenance
$__________/Acre
$__________/Hour

D. Shrub and Vine Care

Pruning Unit Cost

1. 1-5 feet $__________/Each
6 plus feet $__________/Each

2. Fertilization
a. Dry formulation placement $__________/Each
b. Foliar application $__________/Each
c. Soil injection $__________/Each

3. Pest Control $__________/Each
$__________/Hour

E. Tree Care

Pruning Unit Cost

1. 1-14 feet $__________/Each

2. Fertilization
a. Dry formulation placement $__________/Each
b. Foliar application $__________/Each
c. Soil injection $__________/Each
d. Vertical mulching $__________/Each

3. Pest Control $__________/Each
$__________/Hour

4. Tree Staking $__________/Each
Tree Guying $__________/Each

F. Plant Material and Installation: (Including all Labor and Equipment for Removal, Replacement and Disposal)
Unit Cost

1. Annual Color (4” Container) $__________/Each

2. Ground Cover $__________/Flat

3. One (1) Gallon
Shrub $__________/Each
Tree $__________/Each

4. Five (5) Gallon
Shrub $__________/Each
Tree $__________/Each

5. Fifteen (15) Gallon
Shrub $__________/Each
Tree $__________/Each

6. 24”
Box Tree $__________/Each

22 02449 – Landscape Maintenance

7. 36” Box Tree $__________/Each

8. Seeded Turf/Top Dress
$__________/s.f.
$__________/1000 s.f.

9. Sodded Turf $__________/s.f.
$__________/1000 s.f.

10. Stolonized Turf $__________/s.f.
$__________/1000 s.f.

11. Bark Mulch $__________/s.f.
$__________/1000 s.f.

G. Weed Abatement (Labor, equipment, materials)
Unit Cost

1. Tractor Drawn Disc $__________/1000 s.f.
$__________/Acre

2. Hand
Work $__________/1000 s.f.
$__________/Acre

3. Flail Mowing $__________/1000 s.f.
$__________/Acre

4. Pre-emergent Herbicide (Broad spectrum) $__________/1000 s.f. $__________/Acre

5. Post-emergent Herbicide (Systemic) $__________/1000 s.f. $__________/Acre

H. Irrigation Repairs (Including all labor and equipment for removal and disposal)

Unit Cost

1. Remote control valve R & R Rainbird
EFB-CP-Series

3/4” $__________/Each

1” $__________/Each

1 1/4" $__________/Each

1 1/2" $__________/Each

2” $__________/Each

2 1/2” $__________/Each

3” $__________/Each

2. Repair lateral PVC lines each Unit Cost

1/2" $__________/LF

3/4” $__________/LF
23 02449 – Landscape Maintenance

1” $__________/LF

1 1/4" $__________/LF

1 1/2" $__________/LF

2” $__________/LF

2 1/2” $__________/LF

3” $__________/LF

4” $__________/LF

3. Repair pressure main PVC lines each Unit Cost

1/2" (Schedule 40) $__________/LF

3/4” (Schedule 40) $__________/LF

1” (Schedule 40) $__________/LF

1 1/4" (Schedule 40) $__________/LF

1 1/2" (Schedule 40) $__________/LF

2” (Class 315) $__________/LF

2 1/2” (Class 315) $__________/LF

1 1/2" (Class 315), ring tite $__________/LF

3” (Class 315) $__________/LF

3” (Class 315), ring tite $__________/LF

4” (Class 315) $__________/LF

4” (Class 315), ring tite $__________/LF

4. Raise valve boxes, fill soil
to grade top and seed $__________/Each

5. Replace valve box, standard
Square 11” x 17” $__________/Each

6. Replace valve box, round, 9”
$__________/Each

7. Replace sprinklers and required
PVC parts $__________/Each

Hunter I-25 $__________/Each

Hunter I-44 $__________/Each

Rainbird 1806 SAM PRS $__________/Each
24 02449 – Landscape Maintenance

Rainbird 1812 SAM PRS $__________/Each

Rainbird 41A Rotor $__________/Each

Rainbird 47A Rotor $__________/Each

Toro 570C-6P $__________/Each

Toro 570C-12P $__________/Each

Toro 640 Series $__________/Each

I. Grounds Maintenance (All extra work and payment
deductions due to performance failure shall
include labor and material.)

Description Unit Cost

1. Trash Pick Up $__________/Hour

2. Trash Can Liner Replacement $__________/Can

3. Tot/Sandlots
Clean/Rake Sand $__________/1000 s.f.

Rototill $__________/1000 s.f.

Add Sand $__________/Cubic Yard

4. Horseshoe Pits
Clean/Rake $__________/Pit

5. Picnic Areas
Sweep/Blow $__________/Picnic Area

Wash $__________/Picnic Area

6. Picnic Tables/Benches/Bleachers
Wash/Clean $__________/Each

7. B.B.Q’s
Empty/Clean $__________/Each

End of Section

LEASE
This lease is made August 3, 1987; 1987, between the_ Mont erey Pen insula Regional Park District ("Landlord"), a special district of the Stat e of California, whose addre ss is P.O. Box 935, Carmel Va�ley, CA 93924, and the City of Marina ("Tenant"), a Californ�a municip al corp6rati�n whose address is 211 Hillcrest Ave., Marina, CA 93933. Land lord and Tenant, in con sideration of the mutual promises contain ed herein-, agree as follow s:

1. Recitals. Landlord and Tenant wish to preserve, improve and en hance cert�in wetlands located in the City of Marina in acco rdance with the City of Marina Revised Wetlands Enhancement Plan adopted by the City in Feb ruary 1987. Tenant. is willing to perform the work neces sary to implement said Plan; Landlord intends to apply for reimbursement for $100 ,000 toward the costs of said work from the funds available unde� the Cilifornia Park Borid Act of 1986.

2. Premises. Landlord leases to Tenant, and Tenant leases from Landlord that certain real property consist ing of approximately 12.3 acres of land within the City of Marina, California, described as A.P. Nos. 033-132-01 and 033-121- 06, and more particularly described on Exhibit A attached hereto and hereby inc orporated herein by referen ce.

3. Term. The term shall commence August 3, 1987, and shall expire August 2, 2012.

4. Rent� Tenant shall pay to Landl6rd as rent, the sum of $1.00, to be- ;iaid in advance on the first day of commen ceurent of the term. All rent shall be paid to Landlord at the address shown in the first paragra�h of this lease.

5. Use. Tenant shall use the premises as a park and for habitat enhancement; provided, however; thae Tenant f s use shall comply with the Wetlands Enhan cement Pl an, as revised by the City of Marina in Febru ary 1987, or as later additio nally amended.

6. Maintenance. Tenant at its cost shall maint ain, in good condit ion, all portions of the premises, inclu ding, without limitation, all Tenant's .Personal property. Tenant shall keep the leased premises and structures in a neat and saf e condition and repair, satisfactory to Landlord.
1 7. Tenant Improvements. Tenant intends to use its best efforts to make those improvements implement in g the
aforementi oned Wetlands Enhancement Plan, but shall no t make any other alterations or improvement s to the premises without Landlord's consent. If Tenant is not in default of any
provision s of this lease, Tenant shall have the right to remove from the premises immediately before the expiration of the term any improvements and alterations Tenant has made on the premises, and Tenant at its cost shall promptly restore any dama ge caused by the removal.

8. Obtainin g Zoning and Other Permits. Tenant, at its cost shall petition all appropriate iovern ment agencies for the purpose of obtaini ng all permits necessary for the conduct of Tenant's inte nded use of the premises.
9- Utilities and Services. Ten ant shall make all
arrangem ents for and pay for all utilities and services furnishe d to or used by it, and all con ne ction charges.
· 10. Inde mnit y. Tenant shall hold Landlor d harmless from all damages arising out of any damage to any person or property occurring in , on, or about the premises, except that Landlor d shall be liable to Tenant for damage resultin g from the acts or omission of Landlord or its authorized representa tives. The parties acknow ledge that there is an agreement (recorded in Reel 2085, Pa ge 534, on April 15, 1987 in the official records of Mont erey County, Californi al between Land lord and Walton Radio which un der certain circumstanc es ma y obligate Walton Radio to indemnify Landlord . A party's obligation urider this paragr aph to in demnify and hold the other party harmless shall be limited to the sum that exceeds the amount of insurance proceeds, if any, received by the party being indemnif ied.

11. Public Liability and Property Dama ge Insurance. Tenant at its cost shall �aintain adequ�te public �iab�:ity and pr�Je rty damage in�uran ce, insuring against all liability of Tenant and its authorized representa tives arising out of and in con nection with Tenant's use or occup ancy of the premises.

All public liab ility insur an ce, and property damage
insutance shall in s6ie perfoimari�e by te�ant of the iri demn ity
provisions of parag raph 10. Each pa rty shall be named as additional in sured on the other's policy, and both pol icies shall conta in cross-li ability endorsement s.

12. Assignment. Tenant shall no t assign this lease.

13. Defa ult. Fa ilure to perform any provision of this lease, if the failure to perform is -no t cured within 30 days aft er notice has been given to Tenant, shall consti tute a defaul t by Tenant. Landlord's remedies, in the event Tenant commit s a 2 . ' •, •. fl(
default shall incl ude, in ad dition to any remedies now or later allowed by law, the right to te-rmin ate Tenant's right to possess ion of the premises at any time, by giving notice to Tenant of said termin ation of possession.

14. Entry on Premises. Landlord an d its authorized
represen tatives shall have the right to enter the premises at all reason able times for the purpose of maintenance, safety inspection, and posting of no tices.

15. Notice. All no tices shall be deemed properly delivered if in writing and deliv�red personally or mailed first class, postage prepaid to the parties as shown in the openi ng paragraph of this lease.

16. Attorney Fees. If either party becomes a party to any arbitration or litigation co ncerning this lease, the premises, or the building or other improvements located on the premises, by reason of any act or omission of the other party or its authorized representa tives, and not by any act or omis�i on bf the party that becomes a party to that arbitratiori or litigation or any act or omission of its authorized representa tives, the party that causes the other party to become invo lved in the arbitration or litigation shall be lia ble to that party for reasona ble attorney s fees and court costs incurred by it in the arbitration or litigation.

If either party commences an action against the other party arising out of or in connection with this lease, the prevailing party shall be entitled to have and recover from the losing party reasona ble attorneys fees and costs of suit.

17. Entire agreement. This lease contains all the
agreements of the parties and cannot be amended or modified except by a written agreement.
-

18. �everability. The un enforc ea biiity, invalidity, or illegality of any provision shall not render the other
provisions unenf orcea ble, invalid, or illegal.

LANDLORD

MONTEREY PENINSULA REGIONAL

PARK DISTRICT
BY: J:. � S�e-a"""n .....,F::-,1=-a-v----=-i....,n,,__ ______ _ President, Board of Directors
TENANT

CITY OF MA RINA
3 . ·'
'e .. ., ..
( C· �SAFECO � TTn.E INSUAANCS
157304

DESCRIPTION
DESCRIPTION REEL 2085PAGE 539
PARCEL I:

C�rtain real property situate in the City of Ma;ina, Monterey Councy, Califoruia, being a portion of tots 40, 41. 42, 46, 47 arid 48, as sho\ffl on the :1ap entitled, "Locke ?addon Company's aayside Subdivision of Monterey City La11ds," recorded in Volume 2 of t'.a-ps and Grants (Outside Lands) a.t ?age 15, par-::icularl::, described as follows: _.;. ... - . . _;:,tr· BEG1NN1NG ac a point on the northe�scerly line of Reservation Road, as said Road is shown on that certain map enci tled, '"Right of 'llay Map, Marina to Merritt St. at C.tstrov'ille, 85.8/&92.8,� Sheet No. 6D of 30 Sheets, on file with the California Department of Transportationt District S, San Luis Obispo, said point being· ac the intersection· of aaid northeasterly· line of Reservation Road vith the southeasterly line of said Loe 46; and running thenc� along said nor�heasterly line of Reservation Road
(L) N. s1• 09' 20" v •• 207.47 feet; thence
(2) Non-Tangentially, from a tangenc which bears &. 42• 02' 09" wl., 620.38 feet along the arc of a curve concave to the nor-theas-c having-a radius of 808 feet through a central angle of 43• 59' 29" (long chord bears N. 20• OZ' 24 1/2" Y., 605.25 feet) to the in:ersec�ion of said northeasterly line 0£ Rese=vation Road with the cotam0u l!ne bet�een said lots 40 and 48; thence aloog said comi:11on line bet".1een lots 40 and 48
(3) S. s1• 09' 20" E., 87.0l_feet; thenc2 leaving aa�d line (4) Non-tangentially, froct a tangent which l;)ears N. :39• 52' 54'' E., 162.47 feet along the arc of a curve concave to the southeast having a radius of 303 fe�t through a central angle of 30• 43' 22" (long chord �ears N. 55• 14' 3Sff E., 160.5'3 feet); thence
(5) Non-tangentially, from a tangent which bears N. 9• 371 09" W., 79.76 feet along the arc of a cur�e concave to the east having a radius of JOJ feec through a central angle of 14• 59' 14" (long chord be�ra N. 2• 07' 32" V.,

79.03 feet); thenc:�
(6) Tangentially, N. s• 22' OSff E., 273.00 feet to a point on the southerlr line of Seaside Avenue, as said·avenua is aho� on said Right of �ay Map; thence along said line
(. (._.

REEL 2 0 8 5 PAGE 5 4 0
(7) N. 80° 36' 17" E. , 15.51 feet; thence leaving said line (8) s. 5° 22' 05, . W., 182.80 feet; thence
�SAFECO, � TTTt..E INSURANCS
(9) Noii-cangendally, from a tangent vhich bears N. 23° 28' 30" E., 89.17 feet along the arc of a curve concave to·the southeasc having a radius of 303 feec through a central angle of 16° 51' 44" (loag chord bears N. 31° 54' 22." E., .88.85 feec); thence
(10) Non-tangentially, N. so• 36' 17" E., 391.69 feet; thence (11) Non-tangentially, from a tangent vhich bears S. 59° 07' 40" e., 504.57 feec along the arc: of a curve concave co the southwest having a radius of 303 feec through a central angle of 95° 24' 40" (loag chord bears s. 11" 25' 20" E., 4�8.26 feet; thence
(12) Radially, S. 53° 43' £., 58.09 !eet to a point on the southeasterly line of said Loe 42; thenc� along said line and its prolongatio9 along che southeasterly line of said Loe 46
(1.3) S. 36 ° 17' ';i., 710.42 fee� to the point of beginning.

PAR.CE'L II:

Right to use and maintain existing underground copper lines for the operation of radio transmission facili t:1es ovei-a parcel of land described as follow:

BECL"INING at the northeasterly ten:iinua of above described c�urse numbered 10 of the above described 12.27S acre parcel, and running thence (1) Scuthwesterl'}', 425.90 feet along the arc: of a curve concave to the. southeast. having a radius of 303 feet through a central angle of so• 32' 06" (long chord b�ars S. 80 ° 36' 17" W., 391.69 feet); thence (2) N. 80 ° 36' 17" E., 391.69 feet to the point of be�inning • . !lOTE: Bearings and Dist.!nces shown �bova are grid bearings and distanc�s based on the California Co-ordinate Sysce�, Zone 4. To obtain ground dist�nces, multiply grid distances shovn by 1.0000587.

A.P. NO. 033-132-01
033-121-06
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DESCRIPTION
Lots Numbered 40, 41 and 42, as said Lots are shown on that certain map entitled, Map of· '!.ocke-?addon Company's Bayside Subdivision•, filed :.n Volume 2 of Maps and Grants (Outside Lands) at ?age 15, Monterey County Records.

EXCEPTING THEREFROM all that portion described as follows:

That portion of Lot Numbered 40, as said Lot is sho'w-n. on that certain map entit.led, "Locke-Padden Company's Bayside Subdivision•, filed in Volume 2 of Maps and Grants (Outside Lands) at Page 15, Monterey County Records, desc=ibed in t"Wo parcels as follo�s:
?.o\.RCEL ! :

Beginning at the intersect.ion of the Easterly line of Lake Drive and the Southerly line of Seaside Avenue as shown on the above said map; thence (1) Along said Easterly line S. 07 degrees 44' 20" W., 67.68 feet; thence (2) N. 37 degrees 33•· 17" �-, 95.00 feec cci· a point in said Southerly line; �hence (3) Along said line S. 80 degrees 36' 2.7" W'., 49.43 ::eec .:o .:he point of · Jeginning. 3eginning at a ?Oint .:..n -:he above sai:d Southerly li.ne of Seaside Avenue, distant therein N. so deg:::-ees 36' :7• E., 263.78 feet ::=om the above said int.ersec�ion or said · Souc.herly line with the �asterly line of �ake �rive; �hence· ( l) A.long said Sout.herly !..:.ne N. 80 deg:::-ees 35' : i. ., , - � ... ::eec: thence -· I --�. , � ( 2) s. 08 degrees 28' 2.3" :5.40 =eet.; :.hence
(3) s. 52 degrees 55• 3 i 11 W. . 59.26 feec; :.:i.enc e (4) N. 87 degrees 23' :2• �-, 160.53 feec to the point oi beginning.

ALSO :::XCE?':':NG :'HEREEOM all t:i.at ce::-t.a.in· ?roper�7 desc=i1:led in :.ie deed :.o C.:,uncy of Mont.e:::ey, a body politic and corporac.:.on, =ecord.ed Sepcembe?:' 27, l.973 in Reel S72 o:f Oi::icial Records of Honcerey Councy at. page 957.

ALSO :::::{CE?T:NG :'HE3.EFROM all chat ce?:"�ain proper�y desc=ibed in cie deed to �alt�n Radio, I�c., a corporation organi=ed under the laws of the State of Nevada, =ecorded June l.7, :976 in Reel :062 of Official Records of Moncerey Count.ya:. ?age 430.

A.?. NO. 033-121-07
RESOLU TION NO. 91- _8.Q._

A RESOLUTION OF THE CITY COUNCIL OF THE CI TY OF MARINA

AUTHORIZING EXECUTION OF AMENDMENT
TO LOCKE PAD DON. LEASE AGREEMENT
BE IT RESOLVED by the City Council of the City of Marina that the Mayor be and is hereby authorized to execute the Locke Paddon Lease Amendment #1 with the Monterey Regional Park District. A copy of said Lease Amendment #1 is attached hereto.

PASSED AND ADOP TED at a regular meeting of the City Council of the City of Marina, duly held on the 1st day of October, 1991, by the following vote:

AYES,
NOES,

ABSENT,
COUNCIL MEMBERS: Takali, Yates, Horning, Perrine and Mayor Johnsen.

COUNCIL MEMBERS: None
COUNCIL MEMBERS: None
LOCKE PADDON LEASE AMENDMENT #1
That the certain Lease Agreement dated August 3, 1987, between the Monterey Peninsula Regional Park District and the City of Marina is amended as follows:

Dated:

Paragraph 2 Premises is to read:
"Landlord leases to Tenant, and Tenant leases from Landlord that certain real property consisting of approximately 17.3-acres of land within the City of Marina, California, described as A.P. Nos. 033- 132-01, 033-121-06, and 033- 121-07, and more particularly described on Exhibit "A" attached hereto and hereby incorporated herein by reference. "
October 2. 1991
MONTEREY PENINSULA REGION��-.... CITY OF MARINA
PARK DlS
� Mayor

Implementation Plan for the Management of
Locke-Paddon Wetland Community Park and
Pond, Monterey County, California

Report prepared for:

City of Marina Community Development Department,
Public Works Division
Christine di Iorio, Director
Edrie de los Santos, Project Manager
and
Monterey Peninsula Regional Park District
Tim Jensen

Prepared by:

Mark Strudley, PhD.

Barry Hecht, CEG, CHg
Josh Fodor (Central Coast Wilds)
Jon Laslett (Central Coast Wilds)
Jana Sokale (Environmental Planning)

Balance Hydrologics, Inc.

February 2012

209138_Implementation_Plan_2-3-12.doc i

TABLE OF CONTENTS

1. INTRODUCTION ............................................................................................................................................... 1

1.1 BACKGROUND ................................................................................................................................................. 1

1.1.1 Purpose .................................................................................................................................................. 2

1.1.2 Phases of study ...................................................................................................................................... 2

1.2 SETTING OF LOCKE-PADDON WETLAND COMMUNITY PARK ....................................................................... 3

1.2.1 Geologic framework ............................................................................................................................... 3

1.2.2 Hydrographic setting and historical hydrology ..................................................................................... 5

1.2.3 Hydrostratigraphy and groundwater resources .................................................................................... 9

1.2.4 Terrestrial and aquatic resources ......................................................................................................... 13

1.2.5 Aesthetic, cultural, recreational, and community resources................................................................ 13

1.3 MAINTENANCE AND OPERATIONS OF LOCKE-PADDON WETLAND COMMUNITY PARK .......................... 14

1.3.1 Management of vegetation and trail system ........................................................................................ 14

1.3.2 Wildlife feeding .................................................................................................................................... 16

1.4 ACKNOWLEDGEMENTS ................................................................................................................................ . 16

2. GOALS AND OBJECTIVES ............................................................................................................................ 18

2.1 GOALS AND OBJECTIVES IN PRIOR PLANS ................................................................................................... 18

2.1.1 Marina Local Coastal Land Use Plan (1982) ...................................................................................... 18

2.1.2 Wetlands Enhancement Plan prepared by Callander Associates and Western Ecological Services Company (1987)................................................................................................................................................. 19

2.1.3 Coastal/Vernal Pond Comprehensive Management Plan prepared by The Habitat Restoration Group and Mitchell Swanson Hydrologists (1994) ...................................................................................................... 19

2.1.4 Master Plan prepared by the Monterey Peninsula Regional Park District Master Plan (1998) ........ 20

2.1.5 City of Marina General Plan (2000, with updates to 2006) ................................................................ 21

2.1.5.1 Community Land Use Element - Habitat Reserves and Other Open Space ......................................... 21

2.1.5.2 Community Infrastructure - Stormwater Drainage Policies ....................................................................... 22

2.1.5.3 Community Design & Development Element – Environmental Protection and Conservation ......... 23

2.1.5.4 Community Design & Development Element – Water Resources......................................................... 23

2.1.5.5 Appendix D: Mitigation Measures from Final EIR and Mitigation Monitoring Plan ......................... 24

2.1.6 Purkiss-Rose-RSI Master Plan and Design Development Report (2005) ........................................... 25

2.1.7 Rana Creek Habitat Restoration, City of Marina General Biological Assessment, Phase 1 (2009) .... 25

2.1.8 Rana Creek Habitat Restoration, City of Marina California Red-legged Frog Survey Report (2009) 28

2.2 SPECIFIC GOALS AND OBJECTIVES OF THIS STUDY....................................................................................... 29

3. WORK CONDUCTED ...................................................................................................................................... 30

3.1 EXISTING DOCUMENTATION AND DATASETS .............................................................................................. 30

3.2 UPDATING EXISTING DOCUMENTATION FOR THE SITE ............................................................................... 30

3.2.1 Updated mapping ................................................................................................................................ 31

3.3 VEGETATION SURVEYS ................................................................................................................................ . 32

3.4 HYDROLOGIC AND HYDROGEOLOGIC MONITORING .................................................................................. 32

3.4.1 Observations pertaining to the inactive well adjacent the library ....................................................... 32

3.4.2 Limited soil stratigraphy adjacent to pond .......................................................................................... 33

3.4.3 Collection of local well data ................................................................................................................. 34

3.4.4 Hydrologic monitoring during WY 2010 ............................................................................................ 34

3.5 INVESTIGATION OF REGULATORY ENVIRONMENT, PERMITS, ZONING, & MANAGEMENT DIRECTIVES .... 35

4. RESULTS OF BACKGROUND INVESTIGATIONS ................................................................................. 38

4.1 CHANGES IN LAND USE, HYDROGRAPHY, AND HYDROLOGY .................................................................... 38

4.2 CHANGES IN VEGETATION ........................................................................................................................... 41

4.3 CHANGES IN REGULATORY ENVIRONMENT ................................................................................................ 42

5. RESULTS OF HYDROLOGIC MONITORING AND VEGETATION SURVEY ................................. 45

209138_Implementation_Plan_2-3-12.doc ii

5.1 HISTORICAL AND RECENT RAINFALL .......................................................................................................... 45

5.2 POND WATER AND SHALLOW GROUNDWATER (EASTERN SHORELINE PIEZOMETER) LEVELS ................. 46

5.3 SPECIFIC CONDUCTANCE ............................................................................................................................. 47

5.4 VEGETATION SURVEY OF LOCKE-PADDON PARK........................................................................................ 48

5.4.1 Wetland vegetation types ..................................................................................................................... 49

5.4.2 Upland vegetation types ...................................................................................................................... 51

6. CONSTRAINTS, RECOMMENDATIONS, AND ONGOING AND FUTURE WO RK...................... 54

6.1 CONSTRAINTS ............................................................................................................................................... 54

6.1.1 Hydrologic constraints ........................................................................................................................ 54

6.1.2 Vegetative constraints ......................................................................................................................... 55

6.1.3 Security constraints ............................................................................................................................. 55

6.2 RECOMMENDATIONS .................................................................................................................................... 55

6.2.1 Managing and improving existing resources over the short term, while retaining existing pond bathymetry ......................................................................................................................................................... 56

6.2.2 Adjusting pond bathymetry to meet long-term restoration goals........................................................ 59

6.2.3 Abandoned on-site well near Library................................................................................................... 60

6.3 RECOMMENDED ONGOING AND FUTURE WORK ........................................................................................ 61

7. LIMITATIONS ................................................................................................................................................... 62

8. REFERENCES ..................................................................................................................................................... 63

209138_Implementation_Plan_2-3-12 iii

LIST OF TABLES
Table 1. Summary of hydrologic monitoring observations for Water Year 2010, Locke- Paddon Wetland Community Park, City of Marina, Monterey County, California.

Table 2. Daily rainfall (inches) for recording rain gage, Water Year 2010, CIMIS Station #116 Salinas North, Monterey County, California

Table 3. Daily rainfall (inches) for recording rain gage, Water Year 2010, CDEC station FO2, Fort Ord, California

Table 4. Summary of Regulatory Agencies and Permits

LIST OF FIGURES
Figure 1. Geologic map, Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California.

Figure 2. Soil hydrologic groups near Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California.

Figure 3. Updated ‘anthropogenic’ drainage basin map for Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California.

Figure 4. 105- year average rainfall from CDEC SAP by month plotted with monthly total rainfall for Water Year 2010 from CDEC FO2 and CIMIS #116 Monterey County, California.

Figure 5. Accumulated departure from long-term mean precipitation, CDEC Station SAP, Salinas No.2, 1905-2010, Monterey County, California.

Figure 6. Cumulative precipitation records for local rain gages, Marina area, Monterey County, California, water year 2010.

Figure 7. Location of geologic cross sections, Marina and Fort Ord areas and coastal area of Salinas Valley Groundwater Basin (Pressure subarea), Monterey County, California (from Kennedy/Jenks Consultants, 2004).

Figure 8. Local stratigraphy along cross section B-B’, Marina and Fort Ord areas and coastal area of Salinas Valley Groundwater Basin, Monterey County, California (fromKennedy/Jenks Consultants, 2004).

Figure 9. Seawater intrusion map of ‘Pressure 180-Foot Aquifer’, Salinas Valley Groundwater Basin, Monterey County, California (from Kennedy/Jenks Consultants, 2004).

209138_Implementation_Plan_2-3-12 iv

LIST OF FIGURES (CONTINUED)
Figure 10. Seawater intrusion map of ‘Pressure 400-Foot Aquifer’, Salinas Valley Groundwater Basin, Monterey County, California (from Kennedy/Jenks Consultants, 2004).

Figure 11. Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California.

Figure 12. Gaging station and soil auger test pit locations, Locke- Paddon Wetland Community Park, City of Marina, Monterey County, California.

Figure 13. Greater Locke-Paddon Wetland Community Park environs, City of Marina, Monterey County, California.

Figure 14. Water depth in Locke- Paddon Pond at western shoreline dock and radio tower, depth to water in shallow piezometer on eastern shoreline, and cumulative rainfall, Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California.

Figure 15. Water depth in Locke- Paddon Pond at western shoreline dock and radio tower, depth to water in shallow piezometer on eastern shoreline, and water temperature, Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California.

Figure 16. Specific conductance and water depth in Locke-Paddon Pond at western shoreline dock and radio tower, and specific conductance and depth to water in shallow piezometer on eastern shoreline, Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California.

Figure 17. Vegetation map, Locke-Paddon Pond, City of Marina, Monterey County, California.

Figure 18. Approximate radio tower grounding wire radii, Locke-Paddon Pond, City of Marina, Monterey County, California.

APPENDICES
Appendix A. City of Marina Storm Drainage Maps

Appendix B. List of all Vascular Plant Species

Appendix C. City of Monterey City Code on Feeding Wildlife

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1. INTRODUCTION
Locke-Paddon Wetland Community Park showcases one of seven remaining protected coastal/vernal ponds within the City of Marina, called Locke-Paddon Pond or KIDD Pond. The Park’s position in the community as both a habitat and recreational resource influenced by surrounding evolving land uses necessitates ongoing management and maintenance. Balance Hydrologics, Inc. was asked by the Public Works Division of the Community Development Department of Marina to guide ongoing and future maintenance and enhancement of Park resources. We have responded by developing a comprehensive Implementation Plan that not only identifies guidelines for management and enhancement, but which also describes the historical development of the Park and environs, and the hydrologic and biotic functioning of resources at the Park.

1.1 Background
Locke-Paddon Pond was identified early in the history of the incorporated City of Marina and the Monterey Peninsula Regional Park District as a noticeable natural feature worthy of incorporation into the recreational amenities of the City of Marina and as a feature that warranted continued preservation and periodic enhancement. In 1986, the Regional Park District, the City of Marina, and the Coastal Conservancy created a partnership to acquire lands around Locke-Paddon Pond (then called KIDD pond, named after the radio station that owned the two prominent radio towers at the site) (Purkiss-Rose-RSI, 2006). Prior to any land purchases, a pond management and enhancement plan was produced (Callander Associates and Western Ecological Services Company [Callander and WESCO], 1987) to guide the development and restoration of the park. By 1991, 5 out of 6 parcels at the site were publicly owned and the park was finally dedicated as Locke-Paddon Wetland Community Park. (The sixth parcel was purchased shortly before a park Master Plan and Design Development Report (Purkiss-Rose-RSI, 2006) was developed to guide conceptual planning of park facilities and resources.) As a condition of approval for a Coastal Permit allowing construction of the 20-acre Marina Landing Shopping Center, the City and others prepared a comprehensive management plan for all the coastal vernal ponds in the City’s Sphere of Influence (AMBAG, 1996). This report (The Habitat Restoration Group and Mitch Swanson and Associates [HRG and Swanson], 1994) was presented to the City in 1994, and includes management plans pertaining to Locke- Paddon Pond and Park. Other land-use changes surrounding and including park property have occurred over the past 2-3 decades and have affected the biotic and hydrologic resources of the Park. Documentation of the land-use adjustments, and especially how these adjustments have affected biotic and hydrologic functions at the Park, is sparse or lacking. Furthermore, the

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few management plans developed for Locke-Paddon Wetland Community Park to-date do not adequately describe the Pond’s hydrologic function, and how that function affects biotic (especially vegetative) resources. Additionally, the existing management plans are out-of-date and therefore don’t account for more recent modulation of local hydrology spurred by land-use change, nor do they describe how the Park and Pond might be managed and enhanced in future years as the City of Marina grows.

1.1.1 Purpose
Balance Hydrologics has developed this Implementation Plan to document and describe this Park resource in terms of its hydrologic and biotic function. Integral to this functional description is a narrative synopsis of the evolving land use surrounding the Park, and including land-use changes on Park property such as the recent completion of the Marina Community Public Library. The purpose of this Implementation Plan, then, is to develop guidelines for management and enhancement of the Park and Pond based on the thorough environmental, historical, and regulatory investigation included in this report. This historical environmental perspective is then employed to help the City of Marina and the Park District move forward in managing both the pond and park at Locke-Paddon.

1.1.2 Phases of study
This report is part of a four-phased study outlined in Balance’s proposal submitted to the City of Marina on November 2, 2009:

1. Phase I provides background information needed to update the existing goals and objectives of Park and Pond management and enhancement. This includes a review of existing management plans, ordinances and regulations, master plans, and other documentation on related projects in the vicinity of Locke-Paddon Wetland Community Park. It also includes collation and analysis of existing hydrologic and biotic resource survey data, so that the formulation of updated goals and objectives can be cast using an appropriate environmental framework.

2. Phase II develops an Implementation Plan (this document) that responds to the regulatory, hydrologic, and environmental results garnered from Phase I combined with hydrologic and vegetation monitoring during this phase.

3. Phase III implements the directives outlined in the Implementation Plan (this document).

4. Phase IV monitors the Pond and environs to straightforwardly and simply address success criteria set forth in the Implementation Plan and in Phase III (as a form of adaptive management that is responsive to unpredictable and unforeseen changes in

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land use, Park management, or local and regional regulatory directives, and perhaps also climate).

1.2 Setting of Locke-Paddon Wetland Community Park

1.2.1 Geologic framework
Locke-Paddon Wetland Community Park and the City of Marina are contained within the Coast Range Geomorphic Province and are part of the Salinian Block, the latter of which is a geologic terrane characterized by slices of northwest trending granitic and high-grade metamorphic basement rocks overlain by Tertiary and Quaternary sedimentary rocks (Kilborne and Mualchin, 1980). The Salinian Block, named after the Salinas Valley, lies west of the main trace of the San Andreas Fault and is bounded on the south by the Big Pine Fault in Ventura County and on the west by the Sur-Nacimiento Fault. The block’s granitic core, composed of fragments of the Peninsular Ranges batholith and which shares its origins with the Sierra Nevada Mountains, is in sharp contrast to the mostly sedimentary and Franciscan basement rocks that surround it in the Coast Range. Rocks in the Salinian Block and Salinas Valley area range in age from the Paleozoic to recent.

Locke-Paddon Wetland Community Park lies just southwest of the mouth of the Salinas Valley at Monterey Bay, and is underlain by a series of marine and non-marine sedimentary units resting above the Salinian granitic basement (Callander and WESCO, 1987; Sundt, 2002). In the northern Salinas Valley area including the Marina and Fort Ord areas, the Miocene Monterey Formation rests unconformably on the Salinian Block granitics and is composed of marine shales and mudstones (Kennedy/Jenks Consultants, 2004). At some locations the Monterey Formation – considered to be the top of the local bedrock -- lies 1675 feet below ground surface.

The upper Miocene-aged Santa Margarita Formation lies above the Monterey and consists of shallow marine, friable arkosic sandstones. Pliocene shallow marine intercalated siltstones, sandstones, conglomerates, clays, and shales of the Purisima Formation lie above the Santa Margarita and in some locations this unit reaches 1420 feet thick. These three sedimentary units all lay below the so-called ‘400-Foot Aquifer’ (see section 1.2.3 for local hydrostratigraphy).

Lenticular beds of sand, gravel, silt, and clay form laterally discontinuous beds of alluvial fan or braided stream deposits in the middle to lower Pleistocene Paso Robles Formation resting above the Purisima. Pleistocene cross-bedded sands with clayey layers of the Aromas Sand lie stratigraphically above the Paso Robles. The lower portion of the Aromas Sand at its basal contact with the underlying Paso Robles Formation is commonly stained a reddish-brown color.

Valley Fill deposits consisting of alternating, interconnected beds of fine-grained and coarser- grained estuarine and fluvial materials cover the Aromas by an additional 25 to 100 feet. This

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group of deposits includes the Salinas Valley Aquitard (SVA) overlying and confining the ‘180- Foot Aquifer’ (see section 1.2.3). Recent alluvium makes up the overlying 10 to 75 feet of alluvium deposited by the Salinas River, and in the vicinity of Locke-Paddon Wetland Community Park, Quaternary dune sands drape these sedimentary deposits in the Marina and Fort Ord areas (Figure 1). The dune sands consist partly of reworked Aromas sands (Burkland and Associates, 1975). The area is part of the Monterey Bay Dune Complex, with mostly high Flandrian dunes on the seaward side of State Highway 1 and pre-Flandrian 1 dunes on the east
side of Highway 1 (Cooper, 1967; California Coastal Commission, 1992). Locke-Paddon Wetland Community Park lies 2.2 km west of the Rinconada Fault (King City-Reliz Fault), 10.8 km northeast of the active Monterey Bay-Tularcitos Fault, 21.5 km southwest of the Zayante Fault, 24.1 km northeast of the San Gregorio Fault (Sur region), and 28.3 km southwest of the very active San Andreas Fault zone (Pajaro region) (Soil Surveys, 2006).

Locke-Paddon Pond is one of Marina’s 6 known vernal ponds (there are seven documented coastal vernal ponds if the unincorporated areas of Marina are included [HRG and Swanson, 1994]), several of which (including Locke-Paddon) are integral to the City’s storm drainage system (Lamphier and Associates, 2000). The Pond is one of the last remnants of a network of coastal salt marshes and sloughs that were part of the ancient Salinas River floodplain when sea level was approximately 300 feet lower than current eustatic levels (HRG and Swanson, 1994; AMBAG, 1995; Lamphier and Associates, 2000). Beginning about 12,000 years ago and extending to about 5000 years ago, the Flandrian Transgression associated with the melting of Fenno-Scandian, Scottish, Laurentide and Cordilleran ice-age glaciers caused rapid sea-level rise that inundated coastal valleys throughout California. Salt marshes and sloughs were created in the lower Salinas River system as a result, and were maintained by tidal fluctuations (HRG and Swanson, 1994). Some sources attribute the creation of isolated (although sometimes hydrologically connected) vernal ponds along the Monterey coast to the landward migration of dune fields that covered some of the Salinas River marsh plain (AMBAG, 1995), while other sources suggest that the formation of proto-vernal ponds was the result of Salinas River sediment deposition at the mouths of these ancient sloughs where they connected with the main

1 The ‘Flandrian Stage’, Flandrian Interglacial, or Flandrian Transgression refers to the first (and so far only) stage of the Holocene Epoch (extends from the end of the Pleistocene [12,000 to 10,000 years ago] to the present day). The first part of the Flandrian was a period of fairly rapid sea l evel rise associated with melting of the Fenno-Scandian, Scottish, Laurentide, and Cordilleran glaciers. As sea level rose, the loci of coastal deposits marched inland, including the position of dune deposits.

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stem of the Salinas River (HRG and Swanson, 1994). Under this latter explanation, at least some of the vernal ponds in the Monterey area were slackwater depositional environments behind drowned and impounded valley mouths, and would therefore be examples of remnant blocked tributary valley lakes. Locke-Paddon Pond has a slightly curvilinear or lenticular shape that may support this hypothesis, although many of the other coastal vernal ponds in the area are nearly circular in planform, which may either suggest simple dune field burial of the ancestral marsh plain or only occasional preservation of the dendritic or finger-shaped form of all the Marina-area ponds

2. Pre-historic pond hydrology was largely a function of direct precipitation and lateral groundwater seepage from adjoining dune areas or perched groundwater above isolated floodplain and/or estuarine deposits. Contributions from surface runoff is presumed to be minimal to non-existent prior to European settlement, as the dune sands exhibit exceptionally high infiltration rates and are excessively drained (Figure 2). Post-European development in the early 1900’s and extending to the present increased runoff contributions, and converted two of the ponds (including Locke-Paddon Pond) into perennial water features (AMBAG, 1995). Currently, no tidal fluctuations affect the coastal vernal ponds, although their elevations are within the tidal range (HRG and Swanson, 1994). HRG and Swanson (1994) cite this as evidence to suggest that the Marina Landing Pond at the intersection of Beach and Reservation Roads just north of Locke-Paddon Pond is tied to perched groundwater, although there are urban runoff contributions to this pond.

1.2.2 Hydrographic setting and historical hydrology
Locke-Paddon Pond is shallow (1.5 to 3.0 feet) with little topographic variation (HRG and Swanson, 1994). In August of 1986, the pond consisted of two bodies separated by an earthen dike (associated with the KIDD radio tower) hydraulically connected through a narrow tule- covered canal along the northern edge of the eastern pond (Callander and WESCO, 1987). The channel was about 3 to 3.5 feet deep in the wintertime, putting the lowest pond bottom elevation at about 0.5 to 1.0 feet above MSL (mean sea level). The western pond had an average depth of 1.5 feet and a surface area of 1.9 acres at the time of the August 1986 survey, while the eastern pond had an average depth of 2.5 feet and a surface area of 3.1 acres. On November 26, 1979, the pond water surface elevation was about 3.6 feet NGVD, and exhibited almost identical

2 Old USGS maps show that the small percolation pond that was filled to construct the newer 180 Reservation Road lift station for the Marina Coast Water District was originally part of the Locke -Paddon Pond basin [City of Marina Planning Department, 1992].)

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water surface elevation during the August 1986 survey of Callander and WESCO (1987). Pond depths generally ranged between 1 and 2.9 feet deep as of August 1986, and variations in pond water level at that time ranged between 1 and 2 feet in “normal” rainfall years (Callander and WESCO, 1987). The adjacent upland surface at the site of the current Marina Community Public Library is at approximately 40 feet above MSL. Water level fluctuations in Locke-Paddon Pond generally follow seasonal wetting and drying and are influenced by evaporation and high percolation rates (Callander and WESCO, 1987). Direct measurements of pond water levels were lacking by 1986 (and continue to be to this day notwithstanding the monitoring conducted for this study), but local residents and knowledgeable public employees indicate that in “normal” rainfall years differences in pond elevation between winter maximums and summer minimums were probably 1 to 1.5 feet (the pond shrank to ¾ of normal size). In droughts, pond water elevation fluctuates from 4 feet MSL to 2 .0 - 2.5 feet MSL (during the 1977 drought, Locke-Paddon Pond had only 0.5 feet of standing water, and was less than ¼ of its 1986 size).

As part of the work conducted by HRG and Swanson (1994), water level staff gages (staff plates) were temporarily installed in Locke-Paddon Pond and were equipped with crest stage gages for tracking peak pond water levels. Water levels were checked eight times between December 3, 1992 and Sept 21, 1993, and are incorporated into our station observer log (Table 1), although the stage and crest gage heights are not referenced to our staff plates or to any known benchmarks. We interpret their data as raw maximum water depth, and we have nevertheless incorporated their data into our discussion of Pond hydrology in a semi-quantitative fashion in section 5 of this report.

As suggested by historical USGS maps in section 1.2.1, the percolation pond that existed at 180 Reservation Road prior to construction of Plan Alternative 4e was part of the same basin as Locke-Paddon Pond. Jones and Stokes investigated this percolation pond on April 12, 1991 to complete their Addendum to the EIR for the MCWD Wastewater Facilities Plan Alternative 4e (Jones and Stokes, 1991). At that time, water was ponded 6-12 inches one week after heavy rainfall. Percolation basin bottom sediments consisted of sands and a histic epipedon (waterlogged organic surface layer). Although survey data are lacking to tie this ponding level to water surface elevations in Locke-Paddon Pond, this extrapolation could be accomplished if engineering drawings at the City of Marina or at MCWD were located indicating the elevation of the percolation basin prior to demolition.

Local groundwater elevations (unpublished; from Callander and WESCO (1987)) up-gradient and surrounding the pond are at about 4 to 7 feet MSL, suggesting that the pond bottom intercepts shallow groundwater. Groundwater inflow, and small amounts of surface water

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inflow (as of 1986), serves the pond. Callander and WESCO (1987) cite the lack of change in seasonal water levels as indicative of local groundwater connectivity. Callander and WESCO (1987) also provided a computed water budget based on lake evaporation, evapotranspiration of wetland vegetation at the site, rainfall runoff, and shallow groundwater input. Their calculation yielded 45 acre-feet (AF) of total annual input and 72 AF of total loss, suggesting that in “normal” rainfall years the pond would dry up by July or August. At that time the contributing watershed area was calculated to be 27 acres (Callander and WESCO, 1987). In Jones and Stokes’ 1991 Addendum to the EIR for the Marina Coast Water District Wastewater Facilities Plan Alternative 4e at 180 Reservation Road, work previously done by Nolte and Associates (Oven-Thompson, 1991) indicated that approximately 123 AF/yr of stormwater runoff enter Locke-Paddon Pond, with 88% of this runoff from single-family residences, roads, and shopping centers, and 12% from open space. Nolte and Associates (Oven-Thompson, 1991) calculated contributing drainage areas comprised of 34 acres of open space, 85 acres of single- family residential along Susan Avenue, Vista Del Camino, and Melanie Road, 23 acres of roads and shopping centers, and an additional 18 acres of single-family residential and 6 acres of open space added from development of Plan Alternative 4e (incorporating the Hilo Avenue neighborhood). Their runoff calculation utilized a rainfall rate of 1.5 feet per year (which is greater than the calculated long-term mean annual rainfall rate at CDEC’s SAP by a little less than 5 inches [see below]). The Marina Community Public Library, constructed in the last few years, contributes additional runoff to Locke-Paddon Pond (estimated amounts described later in this report). HRG and Swanson (1994) indicate that of the seven coastal/vernal ponds in the Marina area, Locke-Paddon Pond receives water from the most heavily urbanized watershed in their study area, a condition that continues to characterize Locke-Paddon Pond to the present time. We provide an updated depiction of the contributing watershed area to Locke-Paddon Pond in Figure 3, based mostly on the storm drain network serving impervious areas that contribute runoff to the Pond, and on natural areas connecting these impervious areas. We feel this updated drainage basin map is more useful to Park management because a drainage basin map based solely on the natural landscape is a) difficult to construct due to the subdued and convoluted dune topography in the local watershed area, and b) reflects more strongly a contributing groundwater basin map because of recharge to shallow groundwater regionally through the excessively drained dune sands.

In 1987, Callander and WESCO (1987) measured maximum salinities in Locke-Paddon of about

1.2 to 1.5 ppt, although no seasonal fluctuation data were available. HRG and Swanson measured Pond pH at 7.8 to 8.8 during their survey in 1994. A water quality sample was taken on August 6, 1986 (Callander and WESCO, 1987), yielding biologically acceptable summer

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temperatures and dissolved oxygen levels, high turbidity, high blue-green algae levels, fairly high nutrient concentrations, and somewhat high concentrations of oil and grease. The eastern culvert outfall serving the 6-acre Marina Village Shopping Center along Del Monte Avenue and a 0.25-mile stretch of Del Monte Avenue north of Reservation Road was of particular concern at that time, delivering 214 mg/L of oil and grease for that sampling. (East and West Pond oil and grease levels were at 3.5 and 0.6 mg/L, respectively.) Four water quality samples were also retrieved by HRG and Swanson (1994) between May 13 and September 21, 1993 and analyzed for temperature, pH, total dissolved solids (TDS), and specific conductance. Specific conductance ranged between 359 and 3125 µS/cm and increased monotonically through time over the course of the four samplings. TDS echoed that trend, increasing from 230 to 2000 µS/cm. Dissolved oxygen was tested on August 16 and September 21, 1993, and full nutrient and chemical characteristics analysis was done for the August 16 th sampling.

Although oil and grease have been detected in Pond samples, as noted above, the storm drain system that interfaces with Locke-Paddon Pond is fitted with oil and grease separators and sediment traps (as are other storm drain systems in Marina). The Addendum EIR for the construction of the sewage lift station on Reservation Road (see Chapter 3; Jones and Stokes, 1991) outlines mitigation monitoring of the Pond’s water quality, but the specifics of effectiveness-monitoring of the grease traps, their maintenance, and postulated pollutant loading rates have not been described in any existing management plans.

An historic rainfall record local to Locke-Paddon Wetland Community Park extends back to 1905 from CDEC (California Data Exchange Center) station SAP (Salinas No.2) and is available as monthly rainfall totals. In Figure 4 we provide a depiction of mean monthly rainfall over the period of record compared with two more recent rainfall records which we have compiled for the Locke-Paddon area. Figure 5 shows the accumulated departure from the long-term mean annual rainfall rate at CDEC SAP, although the departure and long-term mean are somewhat misleading due to the absence of rainfall data during some critically-high rainfall periods such as the winter of 1981 and 1982. Data are also not available at SAP for late winter 1987, winter 1989, and winter 2011 (and a few other typically dry summer periods). The long-term mean annual precipitation (MAP) based on this record is 13.28 inches, which differs slightly from the long-term mean annual rainfall calculated in the Water Resources Data Report for Water Year 1994-95 (Monterey County Water Resources Agency, 1997). In that report, the MAP was 13.44 inches, based on a record from Salinas from 1873 to 1995. Figure 6 illustrates the cumulative precipitation for two local rain gages local to Locke-Paddon Wetland Community Park during water year 2010: the CIMIS Salinas North station (#116) and the CDEC Fort Ord station (FO2).

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These stations recorded 16.69 and 13.49 inches of rain during water year 2010, both slightly above the long-term MAP at the CDEC SAP station. Tables 2 and 3 show daily rainfall records at both stations for water year 2010.

1.2.3 Hydrostratigraphy and groundwater resources
Previous studies of Locke-Paddon for the City of Marina contain little or no discussion of the geology and groundwater surrounding and beneath the pond. An expanded discussion is now warranted, since these support the pond, and need to be understood in both the local context (which the City can directly influence) and regional context, which is managed largely by MCWD and the County Water Resource Agency.

Locke-Paddon Wetland Community Park overlies the southwestern margin of one of four hydrologically and hydraulically linked groundwater areas in the Salinas Valley Groundwater Basin called the Pressure subarea (Boule Engineering Corporation, 1986). The Pressure subarea contains about 140 square miles of land extending from the Monterey Bay Coastline to Gonzales along a northwest trending axis in the Salinas Valley. The Forebay subarea bounds the Pressure subarea on the southeast, and the Eastside subarea forms its northeast boundary. As with the other subareas of the Salinas Valley Groundwater Basin, three separate aquifers constitute the Pressure subarea: the ‘180-Foot Aquifer’, and ‘400-Foot Aquifer’, and the ‘Deep Zone’ (containing a number of aquifers below the roughly 800-foot zone), so-named for the approximate depths at which each water-bearing zone is encountered. In the Pressure subarea, a shallow surficial aquifer overlies the Salinas Valley Aquitard (SVA), the latter being a series of blue or yellow sandy clay layers with minor sand layers overlying and confining the ‘180-Foot Aquifer’ (Kennedy/Jenks Consultants, 2004). Thickness of the SVA is about 100 feet west of Salinas, thins to 25 feet near Salinas, and pinches out east of Salinas. Boule Engineering Corporation (1986) identifies the SVA in the vicinity of Marina as being 50’ or less in thickness, with a bottom elevation of about 50 to 75 feet below mean sea level. The ‘180-Foot Aquifer’, or ‘Pressure 180-Foot Aquifer’ is 50 to 150 feet thick with the top typically encountered between 100 and 150 feet below ground surface (bgs). In slight contrast, Boule Engineering Corporation (1986) cites the ‘180-Foot Aquifer’ as exhibiting a thickness of about 200’ and bottom elevation of about 250 feet below MSL in the Marina area. The upper portion of the ‘180-Foot Aquifer’ is confined by the SVA and the lower portion is recharged from the east where the SVA pinches out. This aquifer is likely composed of lower Valley Fill terrace deposits and upper Aromas Sand, and possibly contains some materials from the Paso Robles Formation (Kennedy/Jenks Consultants, 2004). The ‘Pressure 180/400-Foot Aquitard’ separates the ‘180-‘ and ‘400-Foot

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Aquifers’ with a zone of thin layers of blue or brown clay, or clay with sand. The aquitard may be discontinuous near the Salinas River mouth and near Fort Ord. The ‘400-Foot Aquifer’ or ‘Pressure 400-Foot Aquifer’ is typically encountered between 270 and 470 feet bgs, and has complex internal stratigraphy. This aquifer is principally thought to contain alluvium eroded from many units surrounding Monterey Bay, principally the Aromas Sand and Paso Robles Formations, but in some locations fragments of shale and chert from the Monterey Formation can be identified. There are also deeper aquifers with aquitards separating them, including the ‘800-Foot’, ‘900-Foot’, ‘1000-Foot’, and ‘1500-Foot Aquifers’ within the ‘Deep Zone’. A depiction of the local hydrostratigraphy controlling groundwater resources in the vicinity of Locke- Paddon Wetland Community Park is adapted from Kennedy/Jenks Consultants (2004) in Figures 7 and 8.

Historical well data in the Marina area, from either monitoring or production wells, were not available to us during our study, but the utility of such well data may be limited for inferring hydrologic behavior at Locke-Paddon Pond. This is because many of the production wells in the area tap aquifers deeper than the shallow surficial aquifer and would therefore not provide useful groundwater elevation data. Likewise, for the few wells used by the MCWD locally, 93% of the 2200 AF of water that the City of Marina uses annually comes from the ‘900-Foot Aquifer’ (Sundt, 2002). Of the balance, 6% is supplied by MCWD’s desalination plant and the remaining 1% is pumped from the ‘400-Foot Aquifer’. (The limit of extraction per Monterey County Water Resource Agency regulations in 2002 was 3020 AF/yr.)
The Monterey County Water Resources Agency described in a 1994-95 water resources report (Monterey County Water Resources Agency, 1997) that groundwater levels usually peak throughout the Salinas Valley Groundwater Basin in February or March, with occasional peaks occurring as early in the water year as December or as late as April. These peaks are the result of seasonal rainfall, changes in pumping, and the variation in local recharge regimes. The onset of spring irrigation and reduced natural recharge presages decline in regional groundwater levels. The lowest point of seasonal groundwater levels usually occurs in August or September.

The occurrence of seawater intrusion into the ‘Pressure 180-Foot Aquifer’ in the areas between the City of Salinas and the coast was first documented in 1933 by the State of California (Kennedy/Jenks Consultants, 2004). Continued seawater intrusion to present day is largely attributed to overdraft of groundwater from the ‘Pressure 180-Foot Aquifer’. Withdrawals from both the ‘Pressure 180-Foot Aquifer’ and the ‘Pressure 400-Foot Aquifer’ have lowered water levels below sea level. Seawater intrusion into the ‘Pressure 400-Foot Aquifer’ has been slower

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and less extensive than in the overlying ‘Pressure 180-Foot Aquifer’ (Figures 9 and 10) because the ‘Pressure 400-Foot Aquifer’ was not drawn upon until water quality in the ‘Pressure 180- Foot Aquifer’ had been significantly degraded. By August of 1983, sea water intrusion had already migrated to or past the City of Marina inland in both the ‘180-Foot’ and ‘400-Foot Aquifers’ (Boule Engineering Corporation, 1986).

In terms of near surface stratigraphy, soils, and shallow groundwater characteristics, a number of studies contain some useful data that supplement our own investigations at Locke-Paddon Pond using a soil auger. Boule Engineering Corporation (1986) indicates that above the ‘180- Foot Aquifer’ are undifferentiated sands, silts, and clays that are not thought to be water bearing. Soil Surveys, Inc. (2006) bored three test holes at the site of the Marina Community Public Library prior to construction on April 17, 2002. Depths of test bores ranged from 23.5 feet to 34.5 feet and were used to determine building suitability. Tests on the cores indicate that the top 8 feet of soil consists of medium loose to medium dense sand, silty sand, and fine- grained “sugar sand”; below 8 feet deep, the soil is medium dense to very dense sand extending to the limit of the test bore (34.5 feet). No groundwater was observed in the test bores and no expansive soils were encountered. Note that the site of the Marina Community Public Library is approximately 40 feet above the level of the Pond, so a 34.5-foot deep test bore is not likely to intercept groundwater if it is coincident with the Pond water level. On December 14-16, 2005, Kleinfelder (2006) examined subsurface suitability for shopping center improvements at the Marina Landing Shopping Center immediately north of Seaside Avenue and the Locke-Paddon property. They found the shopping center to be underlain by poorly graded sand, poorly graded sand with silt, and some poorly graded sand with clay to a depth of 36.5 feet (maximum exploration depth), all of which were non-expansive. Here, groundwater was approximately

21.5 to 22.5 feet below ground surface.

Callander and WESCO (1987) described the dune sands local to Locke-Paddon Wetland Community Park as approximately 100 to 120 feet thick, based on local well logs. Their description indicates that the dune sands are saturated at depths greater than 5 to 10 feet MSL, and constitute an unconfined freshwater aquifer of at least 100 feet saturated thickness of high transmissivity materials. Soils at Locke-Paddon are Baywood soils, which are deep, somewhat excessively drained loamy sands with very low organic matter content, low salinity, and near neutral pH (see Figure 2). The dune sands exhibit high permeability and low runoff rates; erosion rates are minimal, based on our own observations and those made by Callander and WESCO (1987) of pond-bottom cores that lacked fresh sandy sediments. Callander and WESCO (1987) also describe mildly saline to alkali sediments occurring in a narrow band surrounding

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the ponds that support tule, cattails, and willow. Underlying the pond bottom is a very dense silty clay layer about 1 to 1.5 feet thick, which serves to perch water in the ponds. Our observations during installation of the staff plate and stilling well in the Pond at the western dock/boardwalk and later at the KIDD radio tower indicate that the pond bottom clay layer is covered by a diffuse, thick (1-2 feet, at a minimum) layer of organic muck mixed with inorganic silts and clays. Resistance at the bottom of our stilling well upon lowering it into the water column varied as a function of depth over at least 1.5 feet, indicating a very diffuse collection of loosely consolidated fines that would make mobility while wading impossible. Underlying the clay layer are older, highly organic marsh deposits. Callander and WESCO (1987) indicate that the clay layer is at 1 to 2 feet MSL, and suggest that it appears to be a regional deposit based on the elevation of similar deposits in other Marina vernal/coastal ponds. In discussions with Mr.

Tim Jensen (Planning and Conservation Manager at the Monterey Peninsula Regional Park District) during the proposal phase of this work, an installed clay liner was suggested to exist along the pond bottom. This clay liner was supposedly installed as part of mitigation measures associated with construction of State Highway 1 in 1976 west of Locke-Paddon to increase ponding size and duration to compensate for wetland lost at the location of Highway 1.

Interestingly, no mention is made of an installed, or anthropogenic, clay liner in the Pond in the Callander and WESCO (1987) report or in any other reports, plans, or documentation reviewed as part of this work.

Our observations of local shallow stratigraphy along the Pond periphery on the eastern shoreline are derived from four test auger holes dug for exploration purposes and to install our eastern shoreline piezometer. Our eastern shoreline piezometer is installed in a perforated tube

3.2 feet deep, and is landward of our other 3 test bores. The bore at the piezometer location exhibits dark grey sandy loam in the top 0.4 feet, with dark grey to black sandy loam with slightly higher sand content to 1.1 feet deep. From 1.1 to 2.6 feet, dark grey to black, medium to coarse sands were encountered. Below 2.6 feet, olive grey medium to coarse sands were encountered which were very moist at the time of installation. The water table was not encountered. The other three test bores exhibited black organic clays with little to no sand content in the first approximately 1.5 to 1.75 feet from the surface. Sand content varied slightly with depth in an unorganized fashion that was likely more related to bioturbation 3 than local

3 Bioturbation refers to the disturbance and reorganization (mixing) of the soil profile or surface by organisms, including flora and fauna.

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stratigraphy. Approximate locations of these test bores and the eastern shoreline piezometer are shown in Figures 11 and 12. In sum, our observations corroborate those of others, and indicate that landward of the “mean” position of the Pond shoreline (indicated by substrate and vegetation) the shallow stratigraphy is mostly dune sands with minor amounts of organic content. Stratigraphy shoreward of the mean water line illustrates predominantly fine-grained materials with a high organic content.

1.2.4 Terrestrial and aquatic resources
Locke-Paddon Wetland Community Park supports freshwater marsh and willow riparian habitat, which provide resources for several diving ducks, breeding amphibians, and the tri- colored blackbird, among other foraging and wintering birds and amphibians (HRG and Swanson, 1994). Plant communities at Locke-Paddon include coastal freshwater marsh, arroyo willow riparian forest, mixed grassland, non-native grassland and other vegetation, native landscaping, and coyote brush, blackberry, and rose scrub (HRG and Swanson, 1994). Habitat communities at Locke-Paddon include open water, coastal freshwater marsh, arroyo willow riparian forest, coastal dune scrub, and mixed/non-native grassland. Fisheries are limited to anthropogenically-emplaced mosquitofish populations (HRG and Swanson, 1994), although local anglers have occasionally stocked Locke-Paddon Pond with other fish including (S. Kawa, pers. comm., Central Coast Bass). The upland dune areas surrounding Locke-Paddon Pond provide habitat for Monterey spineflower, sand gilia, Monterey ceanothus, black legless lizards, and the Smith blue butterfly.

1.2.5 Aesthetic, cultural, recreational, and community resources The Marina Dunes Task Force was established in 1986 to oversee development in the Dunes, as part of settlement of a lawsuit involving hotel development in the coastal zone (California Coastal Commission, 1992). Within the Coastal Zone, the Dunes area is critical for scenic and natural resources and recreation (California Coastal Commission, 1992). The Coastal Plan, published in 1976, establishes 7 criteria for sensitive coastal habitat, six of which apply to the Marina Dunes and to Locke-Paddon Wetland Community Park: special habitat, area of significant recreational value, scenic area, significant visitor destination, recreational opportunities for low and moderate income people, and area where divisions could substantially impair or restrict coastal access (California Coastal Commission, 1992).

Within this framework, the Monterey Peninsula Regional Park District and the City of Marina have been able to afford a number of cultural, recreational, and community services at Locke-

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Paddon Park. For example, numerous well-maintained trails and boardwalks surround the Pond for visitor enjoyment and education. Few placards are located along these trails for educational purposes. A small amphitheater provides further entertainment potential for visitors midway between the Pond and the Marina Community Public Library on the eastern hillslope. And the Marina Community Public Library provides the community with an extensive educational resource and meeting area adjacent to the most prolific of coastal/vernal ponds remaining in the City of Marina’s Sphere of Influence.

1.3 Maintenance and Operations of Locke-Paddon Wetland Community Park

1.3.1 Management of vegetation and trail system
Currently, per General Plan guidance and recommendations made in the 1994 Management Plan (HRG and Swanson, 1994), a low level of service is provided to manage the park’s vegetation and trail system. Routine trimming and clearing of vegetation from viewing areas and trail boundaries occur at various points during the year. Our observations suggest that more recent maintenance activities occur on an as-needed basis, when vegetation encroaches upon Park infrastructure and obstructs public view points. As articulated in the City’s maintenance agreement for Locke-Paddon Park, the following excerpts describe the vegetation management recommendations that are currently loosely being followed for Park upkeep:

2.30 Native Plant/Restoration Areas and Wetland habitats Native upland and aquatic habitats need to be maintained and monitored in order to preserve and enhance native species within Locke-Paddon Park. Species used to re-populate upland and aquatic habitats should be consistent with the native flora of the Locke-Paddon area (see “Coastal/Vernal Ponds Comprehensive Management Plan” and “Wetlands Enhancement Plan for the City of Marina California”). City will provide annual consultation with a qualified biologist for all items within this section.

2.30.01 Native Upland Habitats
a. Between the lake edge and the pathways native plants should be maintained and re- populated as needed. Plants should be trimmed/pruned as needed in order to ensure safety concerns and reduce encroachment onto pathways.
b. Seasonal grasslands are to be mowed/cut with a flail type mower and/or string trimmer.

Repopulate seasonal grasslands with native grasses by broadcast and or drill seeding of native species.

Native shrub restoration areas need to be re-vegetated as needed in order to maintain dominance of native shrubs throughout the restored area. Maintenance of a few small,

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scattered bare open patches throughout the restored area is desirable in order to provide habitat for rare annual plants. Annual monitoring of plant community composition using standard methods such as quadrate and line transect surveys should be conducted during the spring when plants are flowering. General visual surveys for rare and sensitive plant species, such as the Monterey Spine Flower (Chorizanthe pungens pungens), should be conducted during the spring months by walking the entire restoration site. Surveys should record the number of individuals seen and include a map of where the plants occur.

2.30.02 Tules (Scirpus acutus):
a. Broken and/or dead tules shall be removed, however; this will not occur during the Tricolored Blackbird breeding season (see section 30.06). b. Removal shall be through dredging or another approved process that does not harm the clay layer below the pond. Tule removal shall be performed on an on-going basis; not allowing plants to propagate in a manner that inhibits wildlife use and/or increases mosquito production is the desired outcome. Removal strategies may vary; however, in order to ensure protection of Tricolored Blackbirds and control of mosquitoes, annual consultation with mosquito abatement is required. Removal shall not occur during the Tricolored Blackbird breeding season and city staff consultation with the Department of Fish and Game may be required prior to removal. Ultimately, removal/thinning should be conducted as needed to maintain a pleasing appearance and to promote and enhance the function of the park as a wetlands area and wildlife habitat. Frequency: (see Attachment A1 - Maintenance Performance Schedule).

2.30.03 Non-native Monterey cypress and pine trees
a. Control the natural recruitment/spread of Monterey cypress and pine trees throughout Locke-Paddon Park to prevent trees from encroaching into native shrub habitats. b. Removal shall be done by hand, mechanical, and/or chemical methods. Frequency: (see Attachment A1 - Maintenance Performance Schedule).

2.30.04 Willow and other riparian tree species
Modification of willows and other riparian trees in order to meet park and city safety standards, access concerns, and reduce encroachment onto private property should be conducted during the non-breeding season as needed. Trees should be pruned/thinned in the fall in order to prevent disturbance to nesting birds. Tree trimming should follow standard guidelines presented in sections 21, 22, and 23. Frequency: (see Attachment A1 - Maintenance Performance Schedule).

2.30.05 Weed control in natural habitat areas
a. Control non-native weed species using manual labor, mechanical methods, and/or chemicals throughout upland and aquatic environments. All chemical use should follow standard

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guidelines presented in sections 17 and 18. In areas where non-native weed species are in close proximity to native plants, hand removal should be performed rather than chemical control (in order to reduce incidental chemical drift and kill of native plants). Frequency:
(see Attachment A1 - Maintenance Performance Schedule). b. Ripgut Brome (Bromus diandrus) is a non-native grass that out competes and eliminates native plant species. Control: Mowing and or grass-specific chemicals (e.g. fusilade); control before seed heads form (typically February – April depending upon rainfall patterns). Repopulate areas where ripgut brome was present with native grasses, shrubs, and/or forbes. Ripgut brome control in upland areas should be a high priority in order to preserve native shrubs and forbes in restored upland habitats. Frequency: (see Attachment A1 - Maintenance Performance Schedule).

2.30.06 Tricolored Blackbird (Agelaius tricolor):

Habitat: Any trimming and clearing of tules and trees should take into consideration the presence of Tricolored Blackbirds (breeding season for Tricolored Blackbirds typically occurs between mid-spring and mid-summer). See section 30.02 for specifics regarding tules and their removal.

1.3.2 Wildlife feeding
Waterfowl feeding occurs at Locke-Paddon. The City of Monterey has established within the City Code that is unlawful to feed any bird or animal, except a domestic pet under the person’s jurisdiction and control within El Estero Park (Appendix C - City of Monterey City Code on Feeding Wildlife). The City of Marina may wish to adopt a similar policy at Locke-Paddon to reduce the potential for attracting non-native bird species to the natural environment of the pond. Increases in the number of bird species, particularly ducks, which are attracted to handouts from the public, can create unhealthy water quality conditions. Bird overcrowding and increases in bacteria can result in illness and disease outbreaks that kill many bird species.

1.4 Acknowledgements
Work on this project was directed by Christine D'Iorio, Director of the Community Development Department for the City of Marina, with the immediate assistance of Maziar Bozorginia, Assistant Engineer acting on behalf of the City. They assisted in many seemingly small but important ways, such as arranging for a work order which allowed us to commence monitoring immediately following consultant selection and before the formal authorization to proceed was received. The work was enabled by a request for proposal originally crafted by Gary Cramblett, former Superintendent of the Community Development Department, (now retired), working in close coordination with Tim Jensen, Planning and Conservation Manager

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for the Monterey Peninsula Regional Park District, who has a long-term interest and knowledge of the workings of the Park.

Support and participation was also arranged through Steve Zmak of the Sierra Club. His input during major project milestones helped guide us in the right direction.

The report draws suggestions and work by our colleagues, Josh Fodor and John Laslett at Central Coast Wilds and Jana Sokale, as well as GIS specialist Eric Forno (Balance staff).

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2. GOALS AND OBJECTIVES

2.1 Goals and Objectives in Prior Plans
The goals and objectives outlined in prior management plans and development guidelines vary according to the needs expressed by pertinent stakeholders at the time of publication or by the type of regulatory body that authored the plan. Below we briefly describe the goals and objectives outlined in historical order for various management and enhancement plans and guidance and/or regulatory documents that have been developed during the lifespan of Locke- Paddon Wetland Community Park to-date. We have assembled these plans based on information provided to us by the Community Development Department at the City of Marina, the Monterey Peninsula Regional Park District, and through our collaboration with Central Coast Wilds and Jana Sokale as part of this contract. Additional programs, regulations, and guidances below the policy level are discussed in Sec. 3.5.

2.1.1 Marina Local Coastal Land Use Plan (1982)
Locke-Paddon Wetland Community Park and Pond (Pond #2 in the report) is located within the Coastal Zone and is therefore included in the Local Coastal Land Use Plan. The Marina Local Coastal Land Use Plan as adopted by the Marina City Council in 1982 and as amended over the years provides a description of acceptable land uses, planning policies and guidelines, public access concepts and an implementation plan. The Vernal Pond-Brown Bulb Ranch Planning Area that includes Locke-Paddon Pond was specifically described in this earliest planning document. The preferred use for Locke-Paddon Pond, the surrounding wetlands and the adjacent hillslope was a community park. The Marina Local Coastal Land Use Plan also called for a 100-foot setback from the wetlands. Public access, compatible with the sensitive biological and geological resources, was proposed through the site and along Reservation Road (City of Marina, 1982).

Several of the policies within the Marina Local Coastal Land Use Plan specifically address Locke-Paddon Pond:
• Policy 24 – To protect and encourage the restoration of the vernal ponds to their original state and allow only those uses adjacent which will reinforce and conserve the unique habitat qualities of these ponds.
• Policy 26 – To regulate development in areas adjacent to recognized rare and endangered species or their habitats so that they will not threaten continuation of the species or habitat.

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• Policy 32 – To minimize adverse environmental affects, by concentrating new development within or adjacent to areas of existing development in the Coastal Zone.

The planning guidelines prohibit development of all wetlands including vernal pools and provide guidance for surrounding urban development proposals to prevent indirect impacts on these sensitive geological and biological resources. The Marina Local Coastal Land Use Plan was amended in 1989 in response to the Brown Bulb Ranch Development proposal. The preparation of a vernal pond comprehensive management plan was a condition of approval for this development project (See Section 2.1.3).

2.1.2 Wetlands Enhancement Plan prepared by Callander Associates and Western Ecological Services Company (1987)
Callander Associates and Western Ecological Services Company (Callander and WESCO, 1987) developed a resource inventory and enhancement plan for Locke-Paddon Pond and Park shortly before the Monterey Peninsula Regional Park District, the City of Marina, and Coastal Conservancy first acquired land around KIDD pond (named after the two radio towers at the property owned by the station of the same call letters). This pond enhancement plan gave direction for the Pond’s and Park’s future development and protection. The Callander Plan outlines a resource inventory and management needs assessment, a recommended enhancement plan including habitat, hydrologic and water quality, public access and interpretation, management, maintenance, monitoring, and acquisition and development elements. Costs for implementing the recommendations in the report are included, as is a CEQA Initial Study to speed the process of park development and protection. In many respects, the Callander/WESCO study is more thorough and technically focused than the subsequent grant-funded study.

2.1.3 Coastal/Vernal Pond Comprehensive Management Plan prepared by The Habitat Restoration Group and Mitchell Swanson Hydrologists (1994) A Coastal/Vernal Pond Comprehensive Management Plan was developed in 1994 (HRG and Swanson, 1994) to identify guidelines for the preservation, management, and enhancement of Marina’s wetland resources. Locke-Paddon Pond (Pond #2 in the report) is included in this report as one of seven identified coastal/vernal ponds within the boundaries of the City of Marina. The goals of the study are derived from the City of Marina Local Coastal Program and input from a Technical Advisory Committee established to guide the planning process, the public, and other project consultants. The goals are paraphrased below from the report:

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• To preserve, enhance, and restore the natural resource values of the pond, adjacent upland habitat, and dune areas.
• To reduce the impacts of human activities on the City’s pond resources. • To provide passive recreational uses of the ponds and adjacent habitat where compatible with natural resource management.
• To develop BMPs for the ponds and immediate vicinity. • To restore and enhance habitat for plant and wildlife species of special status. • To provide natural resource interpretation for the residents of, and visitors to, the City of Marina.

An extensive list of objectives is also included to help the City of Marina achieve goals set forth in the plan.

2.1.4 Master Plan prepared by the Monterey Peninsula Regional Park District Master Plan (1998)
The Monterey Peninsula Regional Park District (District) was created by a vote of the people in 1972. The District was formed with the express purpose of acquiring open space and providing recreational opportunities within the District’s boundaries, which includes the seven incorporated cities on the Monterey peninsula, Carmel Valley, and the Big Sur Coast. The District is funded through a ½ percent property tax assessment. At the time of the preparation of the Master Plan, the District had acquired with the funding assistance from the California Coastal Conservancy grant program five out of six of the properties surrounding the pond and had dedicated the site as the Locke-Paddon Wetland Community Park. The sixth property was acquired in 2004. The sixth property, known as the Isakson property, was purchased solely with Monterey Peninsula Regional Park District funds. Properties purchased with grant funds have restrictions regarding the types of activities and uses the park can offer.

The 1998 Master Plan was intended to establish goals for protection and use of existing and future land acquisition, develop criteria for open space acquisition and management decisions, and disseminate public information about the District’s community partnership role. The Master Plan was prepared with community input and resulted in the development of both policies and an implementation plan to guide the District’s operational activities, acquisitions, site development projects and public programs. The District adopted policies that support environmental preservation, public access, and passive recreation. The Draft Master Plan and

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Negative Declaration prepared under the California Environmental Quality Act were circulated for public comment.

The Locke-Paddon Wetland Community Park implements three out of six of the open space benefits identified in the District’s Master Plan. These benefits, as paraphrased below, include lands with (MPRPD, 1998):
• significant scenic resources which contribute to the region’s unique visual qualities, • environmental purpose by providing habitat for endemic and protected species, possessing unique geological and biological resources which, in this case, comprise the pond and wetlands habitats and unique plant communities, and • recreational opportunity that, without the assistance of the District, would be beyond the financial capacity of the City of Marina to acquire, develop, and manage.

2.1.5 City of Marina General Plan (2000, with updates to 2006) The City of Marina was incorporated in 1975 and adopted its first General Plan in 1978. The 1978 General Plan included significant amendments pertaining to Locke-Paddon Pond. These included the adoption of the Marina Coastal Land Use Plan in 1982 (See Section 2.1.1) and the approval of the Marina Landing Shopping Center development in 1989, which included modifications to the Brown Bulb Ranch Planning Area and a management plan for the coastal vernal ponds (See Section 2.1.3). The Marina City Council adopted the current General Plan in 2000. The Locke-Paddon Wetland Community Park is addressed in the Community Land Use and Community Design & Development elements and in Appendix D (of the General Plan):

Mitigation Measures from Final EIR and Mitigation Monitoring Plan of the 2000 General Plan.

Stormwater drainage and water resource issues that impact the water quality and habitat conditions of Locke-Paddon are also addressed in the 2000 General Plan.

2.1.5.1 Community Land Use Element - Habitat Reserves and Other Open Space The Community Land Use Element reinforces earlier land use decisions to preserve and protect the vernal ponds. Section 2.10 Habitat Reserves and Other Open Space states:

2.10 Lands designated as “Habitat Reserve and Other Open Space” are intended for permanent retention in open space to protect significant plants and wildlife inhabiting these areas. These lands consist of the following natural areas:

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4. In Central Marina, several vernal ponds are also designated as open space, and a potential seasonal pond is located at the southwest corner of the Reservation Road/Beach Road intersection.

Any development application for this latter site shall be evaluated by a qualified biologist to determine the pond boundaries and any needed restoration measures consistent with the Marina Landing Enhancement Plan, incorporated as part of the 1989 Local Coastal Program Land Use Plan Amendment. (2005-82)

2.1.5.2 Community Infrastructure - Stormwater Drainage Policies Locke-Paddon is influenced by stormwater runoff. The 2000 General Plan includes policies that have a direct impact on Locke-Paddon that must be taken into consideration in any future plans for the community park. The City of Marina’s stormwater policy of directing flow to local retention basins has effectively created retention basin conditions within the formerly vernal pool habitat of Locke-Paddon. Sections 3.55-3.57 Stormwater Drainage states:

3.55 The manner in which storm water runoff is accommodated has major implications for water quality, safety and overall aesthetics of the area. At present, storm water runoff is accommodated through the use of small, scattered retention basins. Since Marina has mostly fine to medium- grained, generally unconsolidated soils with a high percolation rate, this type of localized stormwater drainage will most likely continue to be workable and practical.

3.56 There are, however, several adverse effects of the present system of storm water drainage that should be addressed. Among these are the current practice of fencing in retention areas without regard to issues of design or appearance and the need to prevent urban runoff from contaminating groundwater sources. The latter will become an increasing problem with construction of larger- scale commercial and industrial projects, which are normally characterized by more extensive areas devoted to parking, vehicular circulation, and outdoor storage. Throughout the planning area most soils are also highly susceptible to water erosion.

3.57 To avoid the above problems related to storm water drainage, the following measures shall be taken:

1. All storm water runoff shall continue to be retained onsite and accommodated by localized retention basins. Retention basins associated with a particular project shall be landscaped with appropriate plant materials and shall be designed wherever possible as integral parts of a development project’s common open space or parks, or to create new or enhance existing habitat.

All onsite drainage facilities shall be designed to convey runoff from a 10-year frequency storm at minimum. In areas of the City where recycled water will not be readily available, the City encourages the provision of storm water reuse facilities of sufficient size to provide for landscape irrigation of development in proximity to retention basins. The adequacy of onsite and off-site drainage facilities shall be determined through the preparation of storm drainage reports and plans, approved by the City Public Works Director; such reports and plans shall be required for all new subdivisions and new commercial/industrial development proposed in Marina.

2. Pretreatment of storm water runoff from roads, large parking areas, and other extensive paved areas used by vehicles shall be provided using appropriate means such as primary

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settlement structures, routing through settlement ponds, or routing through adequately long natural swales or slopes. In addition, all development plans shall conform to the requirements of the City’s National Pollution Discharge Elimination System permit and City ordinances, and all subdivisions and new commercial/ industrial development shall identify Best Management Practices (BMP’s) appropriate or applicable to uses conducted onsite to effectively prevent the discharge of pollutants in storm water runoff.

3. Storm water systems shall be constructed in a manner which prevents soil erosion.

Appropriate measures to avoid such impacts include the dispersal of runoff, installation of energy dissipaters where dispersal is not practical and concentration of runoff water is necessary, and retention of vegetation or revegetation of affected surfaces.

2.1.5.3 Community Design & Development Element – Environmental Protection and Conservation
The Community Design & Development Element supports the policies in the Community Land Use Element that are designed to protect areas with significant agricultural or natural-habitat value from being displaced by development, and protected from indirect impacts related to air, water and energy resources. Sections 4.113, 4.114, 4.115, 4.116, 4.117, 4.118, 4.121, and 4.122 further ensure the protection and conservation of the vernal ponds from the adverse affects of nearby construction and land alteration, whether for private purposes or to accommodate public facilities. The policies and conditions address three major natural resource categories, which include biological resources, water, soil and mineral resources, and air quality.

2.1.5.4 Community Design & Development Element – Water Resources

The Community Design & Development Element supports the policies in the Community Infrastructure Element that are designed to address stormwater runoff and water quaility.

Section 4.125-Water Resources states:

4.125 Approval of all future uses and construction within the Marina Planning Area shall be contingent upon compliance with the following policies and conditions intended to protect the quality of the area’s water resources, avoid unnecessary consumption of water, and ensure that adequate water resources are available for new development.

1. Where site size and soils permit, all storm drainage systems for new development shall be designed in accordance with the provisions of Section 3.57 of this plan to retain storm water on-site and provide for its filtering of urban pollutants and its percolation into underlying aquifers.

2. All new roads should be designed to allow the localized retention, filtering of urban pollutants, and percolation of storm water into the underlying aquifer.

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3. All potential major sources of water pollution shall comply with state and regional water quality programs, including the need to obtain a discharge permit from the State Water Resources Control Board for storm drain outfalls classified as "industrial."

4. All construction activities involving the alteration of land and the construction or improvement of roads, buildings and other structures, where applicable, shall maintain and enhance the quality of the environment of Monterey Bay in support of the bay’s designation as a national marine sanctuary.

2.1.5.5 Appendix D: Mitigation Measures from Final EIR and Mitigation Monitoring Plan The mitigation measures highlighted below are excerpted the Final EIR and associated Mitigation Monitoring Plan. These measures were determined as necessary to reduce significant environmental impacts identified in the 2000 General Plan to a level of less than significance. The number following each mitigation measure listed herein references the actual mitigation measure of the Final EIR and Mitigation Monitoring Plan. These measures have direct bearing on Locke-Paddon Wetland Community Park.

Mitigation Measure 6.3: Avoiding Impacts to Wetlands and Obtaining Required Permits All proposed development projects shall be designed to avoid construction in wetlands to the extent practicable. In those instances where it is not possible to avoid wetlands through design measures, the U.S. Army Corps of Engineers, the U.S. Environmental Protection Agency, the U.S. Fish and Wildlife Service, the California Department of Fish and Game, and the California Regional Water Quality Control Board shall be contacted in order to achieve compliance with the appropriate regulations and to obtain all required permits prior to project approval. The granting of the required permits may be conditional on the implementation of site-specific measures designed to mitigate any modification of riparian areas or wetlands which may result from construction of the projects. Avoiding completely all wetlands through design measures would reduce this potential impact to a level of less than significant. However, depending on the character and purpose of a proposed project, it may not be possible to design it in such a way as to completely avoid these areas. In these instances, project-related impacts would need to be mitigated to the satisfaction of the appropriate regulatory agencies prior to the issuance of the permits necessary to allow project construction to proceed. In granting the necessary permits, the regulatory agencies would require that all project-specific wetlands impacts be reduced to a level of less than significant.

Mitigation Measure 10.2: Site-Specific Analysis/Mitigation Associated with Parks and Recreational Facilities Construction

As the construction of new parks and recreational facilities (or the expansion of existing recreational facilities) is proposed to meet the increased demand for such facilities anticipated under the Marina General Plan, each project shall be required to undergo environmental review to determine the extent of any physical effects associated with the construction of the proposed facility that could have adverse impacts on the environment. If such effects are identified through the site- specific environmental review process, then the City of Marina shall identify and implement appropriate measures which would mitigate these effects to a level of less than significant.

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Mitigation Measure 10.3: Developer Contributions to Parks and Recreational Facilities/Capital Improvement Program Scheduling

In accordance with Marina General Plan Policy 2.16.1, Policy 2.16.3, and Table 2.3, the City shall continue to require new development to contribute to the provision of new parks and recreational facilities needed to meet the increased demand for these facilities resulting from their proposed developments. The City of Marina shall also ensure that the Capital Improvement Program accurately reflects the increased demand for parks and recreational facilities which would be expected to result from an increase in residential development within the planning area, so that proposed park and recreational facilities can be completed and operational prior to any significant increase in the local demand for such facilities. The combination of these two measures would effectively reduce the potential impact to a level of less than significant.

2.1.6 Purkiss- Rose-RSI Master Plan and Design Development Report (2005) In September 2004 Purkiss-Rose-RSI agreed to furnish park planning and landscape architectural services to the Monterey Peninsula Regional Park District for the enlargement and enhancement of Locke-Paddon Wetland Park. The Design Development Report (Purkiss-Rose- RSI, 2005) that was generated from this work is an association of planning functions composed to meet the needs of the agency (here, the MPRPD) in processing the initial design of Locke- Paddon Wetland Community Park and facilities. The Report highlighted the intended original purpose of Locke-Paddon as a community park serving recreational and educational needs associated with the greater Marina community. The Report also stressed that the Pond itself should remain as-is, with the only suggested alteration being an aeration system implemented through artificial streams with head ponds on the eastern slope/shoreline. Habitat recommendations included removal of non-indigenous plants and thinning of overgrown vegetation. Suggestions were also provided to enhance and/or establish an open play area, picnic shelter, informal amphitheater, and to improve the existing trail network and educational and interpretive signage. The existing water well on the Isakson property is cited as a potential source of water for lake replenishment and irrigation.

2.1.7 Rana Creek Habitat Restoration, City of Marina General Biological Assessment, Phase 1 (2009)
The General Biological Assessment conducted for the City of Marina’s vernal ponds evaluated the presence/absence of sensitive wildlife and plant species and the suitability of the habitat to support these species. The assessment included a review through the California Natural Diversity Database as well as site visits to the ponds. Locke-Paddon Pond was determined to host a number of sensitive plants species and has the potential to support other unique plants.

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The perennial pond also supports numerous sensitive wildlife species including tri-colored blackbirds, yellow warbler, common yellowthroat, and western pond turtle.

The report recommended additional focused surveys to confirm presence/absence within the vernal ponds and to guide the planned update of the Coastal/Vernal Pond Comprehensive Management Plan. The Locke-Paddon surveys included:
• USFWS protocol California red-legged frog survey. This work was completed and is summarized below.
• USFWS protocol Smith’s blue butterfly survey in upland dune/coastal scrub habitat where seacliff and/or coast. Populations of seacliff and dune buckwheat, which are the host plants for the larvae of the Smith’s blue butterfly, should also be surveyed, mapped and marked for protection.
• Spring surveys (typically during April-early May) for special status plants that have a potential to occur or were previously observed near the vernal ponds including Monterey spineflower, sand gilia, Yadon’s wallflower, sand loving (coast) wallflower, Eastwood’s goldenbush, Kellogg’s horkelia and Toro manzanita.

The report also suggested interim management recommendations specific to each of the vernal ponds. The interim management recommendations provide avoidance measures that are designed to reduce impacts to sensitive botanical and wildlife resources to less than a significant level. After the completion of the focused surveys recommended above, these interim management recommendations may be modified based on future findings. The Locke- Paddon interim management recommendations include:

Botanical Resources:
• The upland area northeast of this pond has good potential for many of the special status plants described herein and also has documented occurrences of coast buckwheat, one of the host plants for the Federal endangered Smith’s blue butterfly. Controlling the spread of non-native vegetation, such as hottentot fig that is present in the vicinity of this pond will enhance habitat for all native plant species. However, until the presence/absence of special status plants is verified by a spring survey, use of manual

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removal in place of herbicidal methods (i.e. glyphosate) for weed control is recommended.
• Improvements at Locke-Paddon Park, such as construction of new paths, observation platforms or similar, should not be initiated until the presence/absence of special status plants is verified by a spring survey, particularly in the upland area towards the northeast of the pond.
• Should any grading activities occur in the vicinity (i.e. within 200 feet) of coastal scrub habitat between June 1 and September 15, which is the flight season for Smith’s blue butterfly, a pre-construction survey for Smith’s blue butterfly should be conducted by a qualified and permitted biologist.

Wildlife Resources:
• Vegetation management around Locke-Paddon Pond, including thinning of tules and tree trimming, should be conducted outside of the nesting season (April 1 – August 30).

If vegetation management must be performed within this timeframe, a qualified biologist must be retained to conduct pre-disturbance surveys, including surveys for tri- colored blackbirds and California yellow warblers, no earlier than two days prior to the onset of work. Until presence/absence of California red-legged frog has been determined, mechanical removal of undesirable vegetation (i.e. hottentot fig) should be avoided.
• The use of pesticides and/or herbicides should be avoided in and immediately around the pond (approximately 60 feet from pond edge) to reduce negative impacts to invertebrates and amphibians.
• Should any grading activities occur in the upland areas surrounding the pond between April 1 and August 30, pre-construction surveys for Western Pond Turtle nesting sites should be conducted by a qualified biologist. Any nesting sites discovered during pre- construction surveys should be marked and provided a 50-foot buffer from the work area.

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2.1.8 Rana Creek Habitat Restoration, City of Marina California Red-legged Frog Survey Report (2009)
The vernal ponds in the City of Marina were surveyed for California red-legged frogs in 2009.

No California red-legged frogs were detected during the eight surveys. Three (3) species of amphibians were observed. The most dominant amphibian species encountered during the breeding season surveys were Pacific tree frogs, of which both adult and tadpoles were observed. A single California toad (Bufo boreas halophilus) was heard calling during an auditory survey and tadpoles were observed within the shallow areas along the riparian woodland. Two (2) observations of American bullfrog (Rana catesbeiana) were made along the walkway to the radio tower.

Six (6) species of non-native predators were observed, all of which have the potential to impact the productivity and survivorship of California red-legged frogs. Mosquito fish (Gambusia affinis) were introduced into the pond as a means of controlling the local mosquito population.

Other non-native predators observed at the site include crayfish, red-eared sliders (Trachemys scripta elegans), American bullfrogs, and non-native fish species. Largemouth bass and sunfish were observed in the deeper portions of the pond during the non-breeding season. The site also supports raccoons and wide variety of wading birds including great blue herons (Ardea herodias) and great egrets (Ardea alba).

The areas of permanent water at Locke-Paddon Pond have a low potential for being used for breeding by California red-legged frogs due to the high concentration of native and non-native predators at these ponds, which significantly reduces the survival rate of tadpoles as well as recently metamorphosed larva. Locke-Paddon does provide non-breeding season habitat that could be utilized for aestivation.

The combination of habitat loss/alteration, fragmentation, and introduction of non-native predators at Locke-Paddon pond has a cumulative effect and has resulted in exclusion and/or the extirpation of the California red-legged frog populations that potentially once inhabited these vernal pond sites. Degradation, coupled with the establishment of non-native predators within the ponds, has significantly reduced the potential for tadpole and larva survival.

California red-legged frog will be unable to utilize Locke-Paddon pond for breeding until the density of non-native predators has been significantly reduced, and/or the quality of aquatic and upland habitat at the sites improves.

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2.2 Specific Goals and Objectives of this Study
The specific goal of this study is to update and organize the existing knowledge base for Locke- Paddon Wetland Community Park, and to provide further guidance on how to best manage this Park and its resources for contemporary and future enjoyment. This plan should be viewed, in part, as a description of the Park’s geologic and hydrologic function, as these functions set a template upon which vegetation, wildlife, and humans operate. The plan provides recommendations on how vegetation, wildlife, and recreational pursuits can thrive together according to the prevailing hydrologic constraints imposed by regional hydrology and local anthropogenic hydromodification.

The Plan’s goals and objectives are derived from discussions with Tim Jensen, Planning and Conservation Manager at the Monterey Peninsula Regional Park District, and City of Marina staff in the Community Development Department (Gary Cramblett, Christine d’Iorio, Maziar Bozorginia), along with the goals and objectives expressed in past management and enhancement plans. The goals and objectives were also shaped by our own assessment of Park resources as new information was brought to our attention in the early stages of the backgrounding work as part of this study.

It may also be helpful, here, to explicitly state what this report is not. This Plan is not a comprehensive Park Master Plan document that describes how to maintain or newly develop Park facilities with engineering drawings such as restrooms and boardwalks. We focus mostly on natural landscape elements and features rather than on Park infrastructure, although the Plan does make some qualitative recommendations pertaining to Park attraction and infrastructure available to visitors. And although the hydrology of Locke-Paddon Pond likely operates in similar fashion to other local coastal/vernal ponds, this Plan is not intended to be a guiding document for the management of these other ponds in the City of Marina’s Sphere of Influence or otherwise. The Plan is intended to be a focused document dealing explicitly with Locke-Paddon Wetland Community Park.

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3. WORK CONDUCTED
Work conducted to complete this Implementation Plan includes a background investigation of existing documentation and datasets, both for our own edification and to fill any missing historical and environmental gaps in prior management plans and guidance documents. We also investigated more recent documents and datasets that had not yet been included in these prior plans and analyses. As part of this updated investigation, we also compiled soils and geologic maps, constructed a new watershed delineation map for Locke-Paddon, searched for useful groundwater data from nearby production and/or monitoring wells, and collected historical aerial photographs of the site and environs. As part of our monitoring program at the Pond, we also installed datalogging monitoring equipment to monitor water levels and temperature over most of water year 2010, and performed a limited soil stratigraphic analysis using a hand-held auger. These elements are described in detail below.

3.1 Existing Documentation and Datasets
Our background investigation of Locke-Paddon Wetland Community Park relied heavily on existing documentation, including the 1994 Coastal/Vernal Pond Comprehensive Management Plan (HRG and Swanson, 1994) and the earlier 1987 Restoration and Enhancement Plan (Callander and WESCO, 1987). These reports, and a few other dated references, provided limited but important insight into the history of the planning and development process for the Park. They also provided snapshots of Park and Pond hydrologic function before and after some key modifications altered local hydrology in a step-wise fashion (see section 4.1).

3.2 Updating Existing Documentation for the Site
The 1994 management plan (HRG and Swanson, 1994) represents the most recent guidance document describing Park and Pond function and how to best manage Park resources (apart from the 2006 Purkiss-Rose-RSI document which is limited to Park facilities rather than hydrologic or biologic function). The document, however, is over 15 years old and is in need of updating, clarification, and expansion. The City of Marina Community Development Department graciously opened their library doors so that we had access to any documentation pertaining to Locke-Paddon Wetland Community Park and environs that remained on-record.

We were able to find updated information on the following projects that were completed after publication of the 1994 plan (a few of which are shown for spatial reference on Figure 13):
• Marina Coast Water District Wastewater Facilities Plan Alternative 4e, which consisted of replacing a small stormwater percolation basin at 180 Reservation Road

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(near the Reservation Road-Seaside Circle intersection) with a lift station to connect sewer lines to a regional system. This project introduced additional runoff from the Hilo Avenue neighborhood to Locke-Paddon Pond, and was completed in the early 1990s, during the publication of the 1994 plan.
• Evaluation and construction of the Marina Landing Shopping Center in 1991-92, which altered local hydrology, stormwater runoff, and water quality. • Construction of the Holiday Inn Express Hotel at the northeast corner of Reservation Road and Seaside Circle, which resulted in native plant mitigation work at Locke-Paddon and created additional sources of stormwater runoff to the Pond.
• Construction of the Marina Community Public Library on the northeast corner of the Locke-Paddon Park property. This project altered natural runoff characteristics on-site.

3.2.1 Updated mapping
A drainage basin, or watershed delineation, map based on the local topography is a basic and pertinent depiction of a local region that contributes runoff to a point within the landscape. For Locke-Paddon Pond, a drainage basin map derived from the local topography is of limited utility for a number of reasons. First, local soils are so sandy and permeable that runoff is seldom generated on un-built surfaces (pervious or natural areas). Second, the dune-complex topography is subtle and convoluted regionally, making it exceedingly difficult to draw a drainage basin boundary. For example, minor depressions in upland topography surrounding Locke-Paddon may not exhibit a surface flow path or spill point that would deliver water as runoff to Locke-Paddon, but percolation of runoff in that depression would eventually make its way to Locke-Paddon Pond as shallow groundwater. And third, Locke-Paddon Pond is generally supplied by the shallow groundwater aquifer that receives percolated rainwater regionally, and not by surface runoff flux.

For these reasons we have chosen to provide a modified drainage basin map, or watershed delineation, based on impervious built surfaces that convey stormwater runoff through the Marina storm drain system to Locke-Paddon Pond via a few storm drain outfalls along the Pond periphery. The drainage basin boundary that we have drawn is represented as a discrete, well-constrained demarcation in built-up neighborhoods, but becomes a wider and less certain diffuse boundary between neighborhoods in natural dune areas where rainwater percolates to groundwater and rarely generates runoff. Our drainage basin boundary in neighborhoods

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incorporated into the Marina storm drain system is based on information provided to us from the City of Marina in the form of a storm drain map (Appendix A). Runoff funnels through these storm drains and enters Locke-Paddon Pond at key storm drain outfalls: 1) a drain outfall with oil, grease, and sediment trap releases storm water to the Pond at the northwest corner that serves Seaside Circle, the Holiday Inn Express Hotel, and Reservation Road in that area; 2) a drain outfall with oil, grease, and sediment trap releases storm water to the Pond at the southeast corner of the Pond that serves the Marina Village Shopping Center, a portion of Reservation Road east of Del Monte Boulevard, and Del Monte Boulevard in that area; and 3) a storm drain outfall with oil, grease, and sediment trap releases storm water to the Pond along the western Pond periphery from underneath Reservation Road, serving the Hilo Avenue neighborhood. This revised drainage basin map is shown in Figure 3, and represents a drainage area of roughly 83.4 acres.

3.3 Vegetation Surveys
Vegetation surveys were conducted to assess the plant community types, document the changes in vegetation composition and structure that has occurred since previous surveys, and to determine the presence of any rare plant species occurring on the Locke-Paddon site. In September 2010 Central Coast Wilds’ (CCW) botanist Ellen Holmes systematically walked the entire site, recorded all vascular plant species observed, mapped the vegetation types, and scrutinized the area for the presence of rare plants. A list of all vascular plant species noted was compiled and is included as Appendix B. A map of vegetation types is included as Figure 17.

The vegetation survey methodology is similar to that used by Western Ecological Services Company (WESCO) for the Marina Wetlands Enhancement Study (1987) co-authored with Callander Associates Landscape Architects. WESCO’s methodology delineated wetland and upland vegetation types according to specific constituents of the dominant vegetation (e.g. coyote brush or cattail). Wetland vegetation was further categorized according to low, middle, and upper marsh communities. CCW’s survey updates the work done by WESCO and further describes the species composition of each of the vegetation types.

3.4 Hydrologic and Hydrogeologic Monitoring

3.4.1 Observations pertaining to the inactive well adjacent the library On September 3, 2009, Tim Jensen of MPRPD met with Drs. Mark Strudley and Josh Fodor of Balance Hydrologics and Central Coast Wilds, respectively, to discuss issues pertaining to Locke-Paddon Park and to examine the inactive well on the Park property adjacent to the

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library. The well is sealed by an octagonally-shaped wooden cover constructed of 2”x4” dimensional lumber and plywood which is affixed to the outer well casing with wood screws.

We removed the “home-made” well cover and exposed an approximately 4-foot diameter concrete outer casing approximately 40 feet deep. A broken inner casing pipe (estimated at 4-6” diameter) was visible approximately 20 feet down, leaning against the inside of the outer casing and broken at its base. Rocky debris and trash were visible at the “bottom” at 40 feet deep, which was clearly a sign of vandalism and neglect. A ladder rail extended from the “bottom” to about 10 feet from the surface and appeared also to be broken at the 10-foot mark (probably for security and safety precautions following well abandonment). There is no way to safely enter or exit the outer casing, which explains the hefty wooden cover. It is unclear why the outer casing was built with such a large diameter, why the inner casing was broken in two places, and how deep both the inner and outer casing extends. It is also not clear when the well was abandoned and/or vandalized. Because of its dilapidated state, no soundings were possible.

The 1987 Callander and WESCO plan mentions installing this well as one of their recommendations to supplement water in the Pond during dry seasons. The plan calls loosely for a well to be drilled at least 100 feet deep. The Locke-Paddon Pond water surface is roughly 40 feet below the ground surface at the location of the well, so the well would have to be at least 40-50 feet deep to intersect local groundwater.

3.4.2 Limited soil stratigraphy adjacent to pond
A limited examination of shallow soil stratigraphy was performed on the eastern shoreline near the location of the installed eastern shoreline piezometer on December 2, 2009. Test pits were explored using a hand-driven soil auger to depths not exceeding roughly 3 feet (per Monterey County standards, non-permitted) at four closely spaced sampling points shown in Figure 12, panel B. The test pits were driven to examine substrate adjacent to the pond in an effort to properly locate and install the eastern shoreline piezometer. The pits were also dug to test the possible existence of an installed clay liner, and how far that purported clay liner extended away from the water line during that site visit. No identifiable clay liner was found (or, at least, none could be identified as a purely anthropogenic layer). The stratigraphy encountered is as follows, and echoes the description in section 1.2.3.

The bore at the eastern shoreline piezometer location exhibits dark grey sandy loam in the top

0.4 feet, with dark grey to black sandy loam with slightly higher sand content to 1.1 feet deep.

From 1.1 to 2.6 feet, dark grey to black, medium to coarse sands were encountered. Below 2.6 feet, olive grey medium to coarse sands were encountered which were very moist at the time of

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installation. The water table was not encountered. The other three test bores exhibited black organic clays with little to no sand content in the first approximately 1.5 to 1.75 feet from the surface. Sand content varied slightly with depth in an unorganized fashion that was likely more related to bioturbation than local stratigraphy. In sum, our observations corroborate those of others, and indicate that landward of the “mean” position of the Pond shoreline (indicated by substrate and vegetation) the shallow stratigraphy is mostly dune sands with minor amounts of organic content. Stratigraphy shoreward of the mean water line illustrates predominantly fine- grained materials with a high organic content.

3.4.3 Collection of local well data
We attempted to collect local well data from the Marina Coast Water District and from the USGS, but no data was available that pertained to shallow aquifer groundwater levels. The few wells operated by the MCWD are either in the 400-Foot or 900-Foot Aquifers, reflecting groundwater in layers confined from those affecting Locke-Paddon Pond by aquitards. USGS groundwater monitoring data available online are for wells that are far displaced from Locke- Paddon Pond in the Salinas Valley and elsewhere, and often only provide limited data (typically, only one sounding is available per well). We were also not able to retrieve any information for the on-site abandoned well adjacent to the Marina Community Public Library.

Our inferences regarding groundwater dynamics at Locke-Paddon are therefore based on other monitoring data collection efforts analyzed in Kennedy/Jenks Consultants (2004), Boule Engineering Corporation (1986), Monterey County Water Resources Agency (1997), and based on our surface and shallow groundwater monitoring data collected at our gaging installations this past water year (see below, section 3.4.4).

3.4.4 Hydrologic monitoring during WY 2010
To monitor water levels in the Pond and in the shallow groundwater aquifer adjacent to the Pond, we installed two separate gaging stations at the Park. The first gaging station was installed in the Pond at the terminus of the boardwalk/pier extending into the Pond from the western shoreline near the Robin Drive-Reservation Road intersection and the southwestern KIDD radio tower. Here we extended an 8.23-feet long, fully slotted stilling well into the Pond along with a 10-foot tall staff plate until refusal by the Pond substrate. The stilling well was capped on the bottom to prevent the organic, fine-grained sediments along the Pond bottom from fouling the datalogger inside the stilling well. A locking, water-tight cap enclosed the top of the stilling well, from which was suspended a cigar-sized Solinst pressure transducer and temperature sensor inside the stilling well. The pressure transducer records the height of the

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overlying water column along with water temperature. This gaging station was designed to record fluctuations in water level through different seasons and due to storms that occurred over the winter of Water Year 2010

4. The data from this sensor did not necessarily record maximum Pond water depth because we don’t have accurate survey data of the Pond bottom.

Additionally, water surface elevation generated from this gaging station is generic in the sense that it is not yet referenced to an established benchmark control (it is not tied to mean sea level [MSL] or the National Geodetic Vertical Datum [NGVD]).

A second Solinst pressure transducer was installed inside a fully slotted, ~3-foot deep piezometer along the eastern shoreline, landward of the band of aquatic and hydrophilic vegetation that rings the Pond. The piezometer is capped at the bottom and is designed to reflect the local shallow groundwater depth up-gradient of Locke-Paddon Pond. Piezometer placement was chosen so as not to intercept waters perched on an anthropogenic clay liner (if any exists), and far enough away from the pond to monitor local groundwater rather than Pond water level. The Monterey County Water Resources Agency requires a permit for any subsurface investigation exceeding 3 feet. We elected to install a 3-foot deep piezometer and not to seek a permit for a deeper investigation because there was urgency in installing our equipment prior to the onset of rainy weather in early water year 2010.

Installation of both gaging stations was completed by December 4, 2009, and monitoring included roughly monthly visits to maintain the equipment, download data, and take manual measurements of water levels, temperature, and specific conductance. Our last measurements and data downloads were completed in October 25, 2010.

3.5 Investigation of Regulatory Environment, Permits, Zoning, and Management Directives
The 2000 Marina General Plan conveys a parks and recreation land use designation to Locke- Paddon Wetland Community Park and a public facilities designation to the adjacent library located on the hillslope above the park. Locke-Paddon Wetland Community Park is also

4 A water year extends from October 1st of the year prior to the named year to September 30th of the named year, and corresponds to an expression of annual duration that is adequately tied to the seasonality of the hydrologic cycle. For example, Water Year 2010 extends from October 1, 2009 to September 30, 2010. It is used by most government agencies, academic institutions, and private sector scientists in hydrologic studies.

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located within the Coastal Zone. The General Plan incorporates by reference the provisions and policies of the Marina Local Coastal Land Use Plan. In the event of any apparent inconsistency between the Marina Local Coastal Land Use Plan and General Plan, the Marina Local Coastal Land Use Plan shall prevail for that portion of Marina within the Coastal Zone. However, in any such case, the City may also pursue possible amendment to the Marina Local Coastal Land Use Plan and/or General Plan as an alternative means to resolve an appearance of possible differences between the two.

The 1998 Monterey Peninsula Regional Park District Master Plan provides management goals on the types of park activities, operations and maintenance for Locke-Paddon Wetland Community Park. The District’s management strategy states that “open space lands shall be managed for dispersed and passive recreational use, provided such use is harmonious with the protection of environmental resources.” It defines passive recreation “as an activity that does not require structured organization, extensive facilities development or use of a motorized vehicle or equipment. Typical activities include, but are not limited to: bird watching contemplation, painting, photography, beach and sand activities, bicycling, boating, picnicking, fishing, hiking, horseback riding, pet exercise, physical exercise, outdoor education, swimming and research” (MPRPD, 1998). The development of Locke-Paddon Wetland Community Park has been guided by the Marina General Plan, the provisions and policies of the Marina Local Coastal Land Use Plan and the Monterey Peninsula Regional Park District Master Plan.

During the background investigation conducted for this report, no regulatory permits for the construction of the park amenities were discovered. It is likely that permits were secured but these documents have not been reviewed for this report. Regulatory permits may have carried conditions that would also have framed the approach to this Implementation Plan. Regulatory permits will likely be required for any modifications to the pond that may be proposed below the waterline and within the surrounding wetlands (See Section 4.3).

The Monterey Peninsula Regional Park District designated portion of Locke-Paddon Wetland Community Park as a mitigation preserve for the federally threatened Monterey spineflower (Chorizanthe pungens var. pungens) and the California threatened and federally endangered sand gilia (Gilia tenuiflora) (MPRPD, 2001). The 3.55 acre preserve site, on the slope below the current library, supports a population of Monterey spineflower, sand gilia and associated upland dune scrub species. This site provides mitigation for the Holiday Inn Express located at the northeast corner of Reservation Road and Seaside Circle. The two listed plant species were found on the Holiday Inn Express site during the development review process. The hillslope

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below the library must be maintained in perpetuity as a mitigation preserve as managed to foster self-sustaining populations of these two plant species (Kephart and Hameister, 2001).

The Coastal/Vernal Pond Comprehensive Management Plan, which was prepared as a condition of approval for the adjacent Marina Landing Shopping Center, has also provided enhancement and management guidelines for all of the vernal ponds in Marina. These guidelines are summarized in Section 2.1.3. Most recently, the Monterey Peninsula Regional Park District prepared a Design Development Report to guide future park improvements and habitat enhancements at Locke-Paddon Wetland Community Park (Purkiss-Rose-RSI, 2005).

This study supported maintaining the pond in its present condition. Habitat enhancement recommendations included removal of non-indigenous plants and thinning of overgrown vegetation. Design concepts were also provided for enhancing and/or establishing an open play area, picnic shelter, informal amphitheater, and to improve the existing trail network and educational and interpretive signage. The existing water well on the Isakson property is cited as a potential source of water for lake replenishment and irrigation.

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4. RESULTS OF BACKGROUND INVESTIGATIONS

4.1 Changes in Land Use, Hydrography, and Hydrology
As part of the work conducted by HRG and Swanson (1994), an examination of historical aerial photos from 1940, 1949, 1966, 1970, 1976, 1978, 1984, and 1990 illustrated changing historical land use over the last century at Locke-Paddon Pond and environs. As of 1937, Locke-Paddon Pond was bound by Reservation Road to the west, agriculture to the north, agriculture and residential uses to the south, and railroad tracks to the east. Between 1949 and present, some of the area around Locke-Paddon was developed. Structures built on its south shore were gone by 1976 with the extension of Reservation Road along its south and west banks. Also in 1976, the KIDD radio towers were built. Additionally, California State Highway 1 was built just west of Locke-Paddon Wetland Community Park in 1976, and residential subdivisions in the area began to appear between the 1950s and 1980s. These large-scale changes to the local landscape ushered changing hydrologic behavior at Locke-Paddon Pond, converting a pre-urbanized vernal hydrology to one of extended seasonal and perennial inundation. This was largely a result of urban and suburban development directing runoff directly to Locke Paddon Pond from impervious surfaces. As explained in section 1.1, Locke-Paddon Pond and environs was developed as a Park in 1988, and the currently derelict well near the Library was used to direct groundwater into the Pond to maintain pond water levels above 4.5’ MSL (as suggested by Callander and WESCO, 1987). Callander and WESCO suggested that the well pump at 20 to 30 gpm from 100 feet deep in the first “unconfined” aquifer. This was essentially one of the final steps in securing perennial inundation at Locke-Paddon Pond. Other components of the 1987 enhancement plan were implemented within Park property shortly after publication. These elements included the boardwalk, park trail network, and other visitor facilities articulated in the 1987 plan.

In 1991, Jones and Stokes published an EIR addendum describing the Marina County Water District Wastewater Facilities Plan Alternative 4e (as modified in Jones and Stokes, 1991), a project designed to connect the District to the Regional Plant to prevent discharges to the Monterey Bay National Marine Sanctuary. The project consisted of demolition of pump station No.1 located at the intersection of Reservation Road and Seaside Avenue, filling of a nearby percolation pond at 180 Reservation Road to 13 ft AMSL, constructing a new larger capacity pump station, and installing a 1300-foot connector (18-inch force main) within the Seaside Avenue right-of-way to connect with the regional interceptor. Drainage that was previously directed to the percolation pond at 180 Reservation Road from the Hilo Avenue neighborhood

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was re-routed under Reservation Road to Locke-Paddon Pond just south of the access road to the KIDD radio tower on the western side of the Pond.

The increase in stormwater runoff to Locke-Paddon Pond from this project was estimated to be 11% (an additional 1-2” in water level increase), based on comparison with drainage areas between the filled percolation pond and Locke-Paddon Pond (City of Marina Planning Department, 1992). This is equivalent to the addition of 13.3 ac-ft/yr of stormwater to Locke- Paddon Pond, for a total of 136.1 af/yr (11% increase; Jones and Stokes, 1991). The Hilo Avenue neighborhood, which would now be contributing runoff to Locke-Paddon Pond, consists of 18 acres of single-family homes and 6 undeveloped acres. In the 1992 City of Marina Planning Department report, it is pointed out that water that was originally directed into the percolation pond at 180 Reservation Road contributes to the same local infiltrated groundwater body that fills Locke-Paddon Pond. (Paired water level monitoring in that pond and Locke-Paddon would have been an ideal way to examine if any clay liner or deposits in Locke-Paddon perched water above levels attained in the 180 Reservation Road percolation pond. Future monitoring of water levels in the Robin Drive, Lake Drive, and Locke-Paddon Ponds would present a similar and useful comparison.) In that report, the City suggested that oil/grease/sediment separators would help keep new runoff water inputs to Locke-Paddon Pond in better quality.

The Marina Landing Shopping Center (approx. 20 acres) was constructed ca. 1991-1992, and resulted in the complete filling of a pre-existing vernal pond at the site and the enlargement of the vernal pond at the Beach Road/Reservation Road intersection (along with roadway realignment) (AMBAG, 1995). The Coastal Permit required for the development of the shopping center included a condition of approval that required the City and the project proponents to prepare a comprehensive vernal pond management plan (this is the 1994 plan; HRG and Swanson, 1994). Although the Project Impacts and Mitigation Measures Table stipulates that “no ground surface runoff from the project site will be allowed to flow into the new larger vernal pond at Beach/Reservation Road (Pond #3, the Marina Landing Pond), the drainage from the site is funneled to on-site storm drains that percolate to shallow groundwater at the site, which may eventually filter through the subsurface to Pond #3 and/or to Locke- Paddon Pond. (The table also mentions that water levels in Marina Landing Pond will be maintained by using water wells from the Project [Marina Landing Shopping Center] site, although we have not confirmed the presence or operation of such wells, and how they might be affecting water levels in Locke-Paddon Pond.)

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In and around 1998, the Monterey Peninsula Regional Parks District (Monterey Peninsula Regional Park District Board of Directors, 1998) proposed recreational improvements at Locke- Paddon Park including expanded parking, picnic and barbeque sites, a gazebo, children’s playground equipment, group/family barbeque sites, a volleyball court and horseshoe pits, and informal baseball/softball field. However, construction of these improvements was essentially denied by the California Coastal Commission because of concern that the improvements would compromise habitat value of the property. (Callander and WESCO (1987) also suggested a maximum of 60 visitors at one time at Locke-Paddon, and that there would be potential disruption of local habitat function in the presence of ballgames and picnics.) The B.T. Development Company built an eighty (80) unit Holiday Inn Express Hotel at the northeast corner of Reservation Road and Seaside Circle sometime between 2001 and approximately 2003 (the project was under construction in 2002 per discussion in the Initial Study for Marina Library Project), and a restoration plan was developed to mitigate the loss of

1.52 acres of upland dune habitat at the site (Kephart and Hameister, 2001). The developed property contained the Federally Threatened Monterey spine flower and State Threatened and Federally Endangered sand gilia. To mitigate this loss, the restoration plan outlined the establishment of 3.55 acres of sand gilia, Monterey spine flower, and associated upland dune scrub species at Locke-Paddon Park just below the current location of the Marina Library.

Specifically, the plan called for the removal of the top 0.5 to 1.0 feet of sandy topsoil at the development site and movement of this topsoil to the mitigation site at Locke-Paddon. Details on the condition of these plantings, and ongoing monitoring that may or may not be occurring, are described in section 4.2 below.

And finally, the last major alteration to the Locke-Paddon Park property was the construction of the Marina Community Public Library (completed in September 2007). A Mitigated Negative Declaration and Initial Study for the Marina Library Project, including correspondence and comments from Regional Park District and other collated comments, and an amended judgement from the Superior Court of California, County of Monterey all initially suggested the project will significantly change current drainage of subject parcel by covering permeable sandy soils with 2.26 acres of impervious roof and parking surfaces. Monterey Bay Engineers (2006) suggested a total drainage area affected by the proposed (at that time) Marina library was 17,469 square feet (0.401 acres). Local percolation rates were suggested as 12 in/hr. However, implementation measures and application of construction techniques directing runoff to downstream stormwater facilities were deemed to render the change in runoff as less than significant. Current observations at the Library indicate the presence of vegetated swales

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downstream from the discharge points of raingutter downspouts. Although no observations have been made of these facilities in operation during storms, it is likely that the swales, which are many meters long, are affective at capturing, filtering, and infiltrating roof and pavement runoff from the library. There are no indications of surface runoff or erosion downslope of the swale termini, between the swales and Locke-Paddon Pond.

4.2 Changes in Vegetation
The wetland and upland vegetation of the Locke-Paddon pond and surrounding lands has transformed in response to the land use changes and the concomitant changes in hydrology.

The changes in wetland vegetation associated with the conversion of Locke-Paddon from a vernal hydrology to one of perennial inundation are significant.

The character of the historical vernal pool vegetation is not documented at the Locke-Paddon site, therefore we can only speculate about the species composition at the site. Vernal pools in the region (e.g. Fort Ord) support an abundance of annual native plant species adapted to seasonal drying. Also a variety of rare plants can be found around the vernal pools in the region, such as Hickman's popcorn flower (Plagiobothrys chorisianus var. hickmanii). With perennial inundation of the Locke-Paddon pond the vegetation is now dominated by obligate wetland species including cattail (Typha spp) and tule (Scirpus spp).

The upland vegetation at Lock-Paddon has been most significantly altered by the construction of the Marina Public Library and the implementation of habitat mitigation measures associated with the Holiday Inn Express. Prior to construction, the library site was dominated by annual non-native grass land species with scattered occurrence of local native species such as beach primrose (Camissonia cheiranthifolia) and sandmat (Cardionema ramosissimum). There was also a mix of native species not characteristic of nearby undisturbed habitat such as red maids (Calandrinia ciliata), California poppy (Eschscholzia californica) and sky lupine (Lupinus nanus).

These species most likely seeded at the site (Rana Creek, 2002). One rare species, Monterey spineflower (Chorizanthe pugens var. pungens), was displaced by the library construction (Rana Creek, 2002).

The mitigation planting for the construction of the Holiday Inn Express was installed in the upland area to the southwest of the library building, marked as Mitigation Planting Scrub in Figure 17. The species composition of the mitigation area is characteristic of coastal scrub and coastal bluff scrub and is distinctly different than the surrounding upland vegetation of the site.

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The seed native species include California sagebrush (Artemisia californica), beach sagewort (Artemisia pyconocephala), mock heather (Ericameria ericoides), and dune buckwheat (Eriogonum parvifolium) (Hameister, 2002).

Another significant change to the vegetation at Locke-Paddon is the ongoing encroachment by non-native invasive species. Acacia (Acacia sp.), English ivy (Hedera helix), ice plants (Carpobrotus edulis & Conicosa pugioniformis), French broom (Genista monspessulana), poison hemlock (Conium maculatum), and others have established to varying extents around the perimeter of the site.

4.3 Changes in Regulatory Environment
Any alteration to the use or management of the Locke-Paddon Wetland Community Park is guided by the General Plan, and by reference, the provisions and policies of the Marina Local Coastal Land Use Plan. The 2000 General Plan Final Environmental Impact Report included Mitigation Measure 6.3: Avoiding Impacts to Wetlands and Obtaining Required Permits. This mitigation measure will guide any proposed alterations to Locke-Paddon Wetland Community Park. The mitigation measure states:

All proposed development projects shall be designed to avoid construction in wetlands to the extent practicable. In those instances where it is not possible to avoid wetlands through design measures, the U.S. Army Corps of Engineers, the U.S. Environmental Protection Agency, the U.S. Fish and Wildlife Service, the California Department of Fish and Game, and the California Regional Water Quality Control Board shall be contacted in order to achieve compliance with the appropriate regulations and to obtain all required permits prior to project approval. The granting of the required permits may be conditional on the implementation of site-specific measures designed to mitigate any modification of riparian areas or wetlands which may result from construction of the projects.

Avoiding completely all wetlands through design measures would reduce this potential impact to a level of less than significant. However, depending on the character and purpose of a proposed project, it may not be possible to design it in such a way as to completely avoid these areas. In these instances, project-related impacts would need to be mitigated to the satisfaction of the appropriate regulatory agencies prior to the issuance of the permits necessary to allow project construction to proceed. In granting the necessary permits, the regulatory agencies would require that all project- specific wetlands impacts be reduced to a level of less than significant.

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The recreation facility improvements, habitat restoration projects, and pond management actions that have been proposed in earlier documents and those proposed in this report may require the City of Marina to undertake environmental review under the California Environmental Quality Act (CEQA) and seek permits from regulatory agencies. Regulatory permits will likely be required for any modifications to the pond that may be proposed below the waterline or within the surrounding wetlands. The CEQA review process is intended to provide the public and both trustee and responsible agencies with an opportunity to provide comment on the project. Trustee agencies are state agencies that have authority by law for the protection of natural resources held in trust for the public. Responsible agencies are those that have some responsibility or authority for carrying out or approving a project. In many instances, these public agencies must make a discretionary decision to issue a local permit or provide right-of-way, funding or resources that are necessary for the project to proceed. In the case of Locke-Paddon Wetland Community Park, the California Department of Fish and Game (CDFG), California Coastal Conservancy (CCC), and Regional Water Quality Control Board, San Francisco Bay Region (RWQCB) may be considered responsible state agencies.

In addition, because parts of the Locke-Paddon Wetland Community Park are considered “wetlands” and “water of the United States” any project impacting these areas of the park has the potential to affect both regulated wetland areas under the federal Clean Water Act (CWA) and special-status species under the federal Endangered Species Act (ESA). Specifically, if the project requires a dredge and fill permit (CWA §404) the United States Army Corps of Engineers (USACE) will have the responsibility to determine the conditions of issuance. This federal action under the CWA cannot be taken until USACE receives certification from the Regional Board (CWA §401) and has consulted with the United States Fish and Wildlife Service (USFWS) and National Marine Fisheries Service (NMFS) as to whether its action or the project could impact a federally protected endangered species.

Also, on a state level, the RWQCB has regulatory authority over wetlands and waterways under both the federal Clean Water Act (CWA) and the State of California’s Porter-Cologne Water Quality Control Act (California Water Code, Division 7). Under the CWA, the RWQCB has regulatory authority over actions in waters of the United States, through the issuance of water quality certifications under Section 401 of the CWA, which are issued in combination with permits issued by the Army Corps of Engineers (ACOE), under Section 404 of the CWA.

Activities that lie outside of ACOE jurisdiction may also require the issuance of either individual or general waste discharge requirements from the RWCQB.

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Projects within Locke-Paddon Wetland Community Park may require project-specific permitting (See Table 4 – Summary of Regulatory Agencies and Permits).

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5. RESULTS OF HYDROLOGIC MONITORING AND VEGETATION SURVEY

5.1 Historical and Recent Rainfall
We collated both historic and recent (WY 2010) rainfall data for the Marina area from stations in the CDEC (California Data Exchange Center) and CIMIS (California Irrigation Management Information System) data libraries. Tables 2 and 3 illustrate daily rainfall rates at the CIMIS #116 Salina North station (36°43’00”N, 121°41’27”W; elevation = 61 feet) and the CDEC FO2 Fort Ord station (36.6270°N,121.7860°W; elevation = 490 feet), while Figure 6 plots cumulative precipitation for both stations for WY 2010 along with historic average annual rainfall. At the CIMIS #116 station, 16.69 inches accumulated in WY 2010, while 13.49 inches fell at the CDEC FO2 station. Notable storms in WY 2010 included the Oct. 13, 2009 storm (roughly 1-2 inches locally), the storm sequence of Jan. 17-23, 2010 (2.7-2.9 inches), and the March 2-3, 2010 storm (1.51-1.76 inches). Historic average annual rainfall was also collected from the CDEC system at station SAP Salinas No.2 (36.6670°N, 121.6670°W; elevation = 45 feet). At this station, monthly rainfall totals have been catalogued since January 1905, yielding a 105-year data set from which an average annual rainfall of 13.28 inches was computed. Thus WY 2010 was roughly an average or slightly above average rainfall year. Figure 4 shows average rainfall totals by month, compared with monthly rainfall totals during WY 2010 for both the CIMIS #116 and CDEC FO2 stations. The CIMIS #116 station exhibited no consistent relationship with the SAP data for the first half of WY 2010, but beginning with January, the CIMIS #116 station typically yielded above average monthly rainfall totals through the remainder of the water year. The FO2 station data for WY 2010 was inconsistent when compared with the historic average monthly rainfall totals throughout WY 2010. Figure 5 depicts the accumulated departure from long-term mean annual precipitation for the CDEC SAP monthly rainfall data set. The data set up until 1981-82 is mostly complete and shows persistent above average conditions between roughly 1905 and 1925, and 1940 and 1983. However, the departures have not been adjusted for missing data during the extremely wet winters of 1981 and 1982, thus substantially skewing both the accumulated departure and average annual curves. The trough of 1992-94 therefore has a slightly aberrant inception, but the regional drought of the late 1980s and early 1990s does contribute to more negative trends depicted in the last 2-3 decades. The last few water years (2007-2009) have been below average, while the recent rainfall data discussed above indicate average to slightly above average conditions during WY 2010.

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5.2 Pond Water and Shallow Groundwater (Eastern Shoreline Piezometer) Levels
As described in section 3, we installed instrumented gaging stations in Locke-Paddon Pond and in a shallow piezometer on the eastern shoreline to record the evolving water levels and temperature during most of WY 2010. Manual measurements of pond water and shallow groundwater levels and temperature were also collected at roughly monthly intervals and are tabulated in Table 1 and are shown graphically in Figures 14 and 15. Figure 14 depicts these manual water level measurements along with the continuous, unreferenced records of mean daily water levels in both the Pond and in the eastern shoreline piezometer. Cumulative rainfall is plotted in Figure 14 for reference. Increases in Pond stage and shallow groundwater levels in response to rainfall events are discernible in both records. Additionally, both records appear to reflect the same water body. In other words, the shape and structure of each water level curve appears identical, save the artificial offset in magnitude which results from the unreferenced manual measurements of stage used to calibrate the instrumental records. Both records show an increase in stage of roughly 3 feet from December 2009 through mid-March 2010, with subsequent rainfall events resulting in only mild increases in stage superimposed on the seasonal recession limb of the hydrograph. The particular shape of each hydrograph differs slightly prior to mid-February, but the hydrographs appear identical in shape following the last significant rise to the mid-March peak in the latter half of February. The rising limbs of individual storm hydrographs in Locke-Paddon Pond seem to be more pronounced than the rising limbs reflected in the eastern shoreline piezometer prior to mid-February. This suggests that Locke-Paddon Pond fills quickly from urban runoff early in the winter season and then drains and equilibrates to the more gradually rising shallow groundwater table reflected by the eastern shoreline piezometer record. Once soils are saturated during the winter and the groundwater table has risen, Pond and shallow groundwater levels operate in phase with similar or identical magnitude. The gradual recession into the Spring and Summer is likewise identical. (The sudden drop in Pond stage on July 16, 2010 was a result of gage relocation to the interior of the KIDD radio tower fencing after vandalism of the Pond stilling well and staff plate mounted to the end of the dock/boardwalk at the western end of the Pond. This is not a “real” drop in Pond stage.)
Figure 15 shows Pond stage, shallow groundwater level, and water temperature in the Pond and the eastern shoreline piezometer. Temperature in the eastern shoreline piezometer is a smooth, damped seasonal signal, reflecting cooler conditions in the winter months (around 12- 13°C) and warmer conditions in the summer and fall (upwards of 16°C) with gradual transitions between the two states. Pond water temperature appears to have increased

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somewhat monotonically over the water year, with the highest temperature readings occurring during the late summer (22-23°C). Temperature data collected on October 25, 2010, our last monitoring visit of the year, indicate the beginning of Pond water temperature decline into the fall and early winter, although our last manual measurement of temperature was still just below 20°C. It is unclear whether Pond temperatures at our monitoring station will decline to temperatures recorded at the beginning of our monitoring program, around 10°C. The seeming increase in Pond water temperature this year may be a reflection of increasing inputs of warmer urban runoff contributions following three very dry water years where water temperature may have been more reflective of cooler, shallow groundwater supply.

5.3 Specific Conductance
A record of manual measurements of specific conductance in the Pond, the eastern shoreline piezometer, and in test auger Hole #4, is shown in Figure 16. Pond and piezometer water levels are shown in the background for reference. Specific conductance is a measure of the ability of water to conduct electricity at a standard temperature (generally 25°C), and is an index of the concentration of total dissolved salts in the water. (Sea water has a specific conductance of about 53,000 µS/cm, while rainwater is typically less than 50 µS/cm.) As water passes over and through the ground, salts are dissolved, increasing the conductance. Higher specific conductance can sometimes indicate longer residence times in the ground, or transmittal through salt-bearing soils or geologic formations. Water of high specific conductance can also be produced by evaporation of stagnant water. Specific conductance can therefore be used as a passive tracer in hydrology studies to distinguish various water sources.

Specific conductance of waters in Locke-Paddon Pond was generally below 1000 µS/cm, and exhibited a gradual decline through the winter months and return to higher levels in the summer months. This almost certainly reflects inputs of relatively fresh urban runoff into the Pond during the winter months, and Pond evaporation and slight concentration of salts during drier months. Measurements of specific conductance in shallow groundwater monitoring piezometers on the eastern shoreline exhibit different behavior. At the eastern shoreline piezometer, specific conductance fluctuated irregularly between 819 and 3165 µS/cm. The peak value was recorded on February 17, 2010, while the lowest value was recorded at the next site visit roughly two months later on April 7, 2010. Specific conductance again peaked in July 2010, and has been declining with the onset of cooler weather in fall. Three measurements of specific conductance were made at test auger site Hole #4, when Pond water had not inundated the sampling location. Here, specific conductance more closely reflected the response seen by the

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Pond, with intervening data points from the core of the winter season absent. Values at Hole #4 ranged between 1072 and 1542 µS/cm. The data for the eastern shoreline piezometer up to the measurement made on July 9, 2010 may reflect three processes: illuviation, flushing, and concentration. First, the drastic increase in specific conductance between Dec. 31, 2009 and Feb. 17, 2010 may reflect illuviation (movement by dissolution, followed by concentration or accumulation) of salts from the soil surface into the B horizon by percolating rainwaters. The piezometer is installed in the B horizon, and surficial salts may be present at the soil- atmosphere interface from airfall precipitation of sea salt spray, which then were washed into the B horizon. Next, the onset of more persistent precipitation diluted the salts within the Pond and shallow groundwater lens until values below 1000 µS/cm were attained in April 2010.

Cessation of rains and increasing temperature and evaporation again increased salt concentrations to values that reached around 2000 µS/cm by July 2010. The subsequent decline in specific conductance following July 2010 is currently unexplained.

5.4 Vegetation Survey of Locke-Paddon Park
Locke-Paddon Wetland Community Park has a diverse and highly variable vegetation that can be broadly delineated into either wetland or upland vegetation. There are many types within these two broad categories (Figure 17). The boundaries between adjacent vegetation types are often distinct, however many complex inter-gradations between types are also observed.

Within each vegetation type the species composition and the plant community structures are unique. A key distinction regarding species composition is that the wetland types are dominated by native plant species and the upland types are dominated by non-native plant species. In a few cases there are one or two dominant species (e.g. tule). However, the majority of the vegetation types do not have a clear dominant species. Rather, there is a complex species composition, which at times has a well-developed community structure (e.g. willow complex).

The vegetation subtypes are further categorized according to the habitat type in which they occur. For example, wetland vegetation types may occur within either the low, middle, and upper marsh habitat zones, whereas upland vegetation types may occur within the coastal dune scrub or annual grassland habitat areas.

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5.4.1 Wetland vegetation types
Tule (Low Marsh)
The dominant wetland vegetation type is characterized by tule, or bulrush, species. The two co- dominant species are the common tule (Scirpus acutus var. occidentalis) and the California tule (Scirpus californicus). (Note that the genus name Scirpus will be replaced by the name Schoenoplectus, among other names, in the upcoming revision of the Jepson Manual.) The tule vegetation extends along the north, northwest, and southeast banks of the pond and comprises approximately 60-70% of the emergent vegetation that occurs in the low marsh habitat.

Tule - Cattail Complex (Low Marsh)
The second most abundant low marsh vegetation type is characterized by common and California tules growing together with broadleaf cattail (Typha latifolia). The tule-cattail complex occurs along the northeast shore of the pond and accounts for approximately 15-20% of the emergent vegetation around the pond.

Cattail (Low Marsh)
Broadleaf cattail grows in pure stands at three distinct areas around the pond. These include a small population at the south-east end of the pond and two small populations to the north and south of the pier leading to the radio towers. Combined, these stands account for less than 5% of the emergent pond vegetation.

Willow - Tule Complex (Low to Mid Marsh), south-central pond edge Three willow species grow in an open-canopy riparian woodland with the common and California tule occurring in open areas in the willow understory. The willow species include shining willow (Salix lucida), arroyo willow (Salix lasiolepis), and red willow (Salix laevigata).

This vegetation type accounts for another 15-20% of the emergent pond vegetation along the south-central shore of the pond.

The invasive, non-native Kikuyu grass (Pennisetum clandestinum) grows along the upper boundary of this vegetation type.

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Silverweed – Bulrush (Tule) Complex (Mid Marsh)
Silverweed (Potentilla anserine, formerly P. edgedii) grows in the understory of prairie bulrush (Scirpus maritimus) along the northwest bank of the pond and also to the south of the radio tower pier. (Note that the genus name Potentilla will be replaced by the name Argentina in the upcoming revision of the Jepson Manual.)
The prairie bulrush grows in association with the bull tule (Scirpus robustus) and the two species are known to hybridize with individual plants displaying characteristics intermediate between the two species.

Rush - Wild Rye Complex (Upper Marsh), north-west pond quadrant This complex of upper marsh vegetation occurs along the north-west portion of the pond.

Baltic rush (Juncus balticus) and creeping wildrye (Leymus triticoides) are the characteristic species. Also interspersed with the rush and creeping wildrye are western goldenrod (Euthamia oxidentalis) and dune sedge (Carex pansa). Two shrub species border this vegetation, with marsh fleabane (Baccharis douglasiana) occurring in wetter areas and coyote brush (Baccharis pilularis) occurring in drier areas.

Kikuyu grass is also invading along the upper limit of this vegetation type.

Wetland Mosaic (Upper Marsh), south-east pond quadrant
The Wetland Mosaic is a heterogeneous vegetation type that occurs at the south-east corner of the pond. The vegetation structure is differentiated into tree, shrub, and ground layers. The over-story is represented by an open canopy of arroyo willow and shining willow.

California blackberry (Rubus ursinus) and marsh fleabane are the primary shrub species. The ground layer species are distributed across a moisture gradient, which from wet to dry are silverweed, iris-leaf rush (Juncus xiphioides), Pacific rush (Juncus effuses), dune sedge, and creeping wildrye.

This vegetation type is also heavily invaded by non-native species such as English Ivy (Hedera helix), velvet grass (Holcus lanatus), French broom (Genista monspessulana), bull thistle (Cirsium vulgare), and Kikuyu grass.

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Willow Complex (Riparian Woodland), east end of pond
The Willow Complex has a similar species composition to that of the Wetland Mosaic described above. However, the vegetation structure is different. This area is a riparian woodland with a denser canopy of shining willow and arroyo willow.

The shrub layer contains California blackberry and marsh fleabane and also includes stinging nettle (Urtica dioica). The species of the ground layer are again distributed along a moisture gradient, from wetter to drier: silverweed, iris leaf rush, Pacific rush, Baltic rush, and creeping wildrye. The distinction is that Baltic rush replaces the dune sedge that occurred in the Wetland Mosaic.

California Blackberry Complex (Riparian Scrub)
California blackberry, coyote brush, and marsh fleabane grow intermingled from the north to the south along the north-eastern side of the pond. This vegetation type is the transition zone between the wetland and upland vegetation types with the marsh fleabane demarcating the upper extreme of the marsh habitat and the coyote brush demarcating the lower zone of the upland habitats.

Once again, Baltic rush, dune sedge, and creeping wildrye grow along the moisture gradient in association with the shrubs. Wild radish (Raphanus sativus) is the primary non-native species growing in this vegetation type.

5.4.2 Upland vegetation types
Annual Nonnative Grasses (Annual Grassland)
This vegetation type is dominated by non-native annual grasses and forbs, with a low density of native species scattered throughout. Non-native grasses cover approximately 50% of the slope between the pond and the City library with a significant area down-slope to the immediate west of the library and another larger area between the row of Monterey cypress trees and the railroad right-of-way.

The non-native grass species include soft chess brome (Bromus hordeaceus), ripgut brome (Bromus diandrus), wild oat (Avena barbata), annual rye grass (Lolium multiflorum), and annual fescue (Vulpia bromoides). The non-native annual forbs include such species as redstem filaree (Erodium cicutarium), cut-leaf geranium (Geranium dissectum), short-pod mustard

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(Hirschfeldia incana), smooth cat's ear (Hypochaeris glabra), and prickle sow thistle (Sonchus asper).

Native species occurrences include California beach aster (Lessingia filaginifolia), telegraph weed (Heterotheca grandiflora), deer weed (Lotus scoparius), California croton (Croton californicus), Canadian horseweed (Conyza canadensis), and California poppy (Eschscholzia californica).

Coastal Scrub (Coastal Dune Scrub)
The coastal scrub vegetation type is a complex plant community that occurs in limited areas around the park. The majority of this vegetation is found growing on the eastern slope adjacent to the railroad right-of-way. Smaller stands of the vegetation are found growing intermittently along the footpath parallel to Reservation Road.

The dominant coastal scrub plant species include coyote bush (Baccharis pilularis var. consanguinea), mock heather (Ericameria ericoides), California beach aster, dune bush lupine (Lupinus chamissonis), deer weed, and California sagebrush (Artemisia californica). There are also many of the non-native annual grassland species present in between the key shrub species.

The vegetation type is also heavily invaded by ice plant (Carpobrotus edulis).

Coastal Scrub Mitigation Planting (Coastal Dune Scrub)
The coastal scrub mitigation planting area is the result of the implementation of habitat mitigation measures associated with the Holiday Inn Express. The area is centrally located on the slope below the library and covers a much greater area than the indigenous coastal scrub population.

The species composition is similar to the indigenous coastal scrub including mock heather, California beach aster, dune bush lupine, deer weed, and California sagebrush. There are also species occurrences that are not present elsewhere within the Park such as dune buckwheat (Eriogonum parvifolium), Beach sagewort (Aretemisia pycnocephala), and St. Catherine's Lace (Eriogonum giganteum). As above, there are many of the non-native annual grassland species present in between the key shrub species; however, ice plant is only encroaching around the edges.

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Monterey Spineflower
The Montery spineflower (Chorizanthe pungens var pungens) is a Federally Threatened Listed Species that only occurs in a small population between the coastal scrub mitigation planting area and the western edge of the Monterey cypress tree line.

Monterey Cypress
Monterey Cypress (Cupressus macrocarpa) is a native tree that is not native to the Locke- Paddon site. Many cypress trees were planted around the site with the mature windbreak planting representing the most significant planting.

Iceplant
Two species of ice plant occur in the Park: hottentot fig (Carpobrotus edulis) and false ice plant (Conicosa pugioniformis), with hottentot fig being by far the most abundant. Ice plants occur in abundance along the edge of the Park immediately adjacent to Reservation Road, along the rail road right-of-way and along the cypress wind break.

Poison Hemlock
Poison hemlock (Conium maculatum) is present in one small population at the central east boundary of the park adjacent to the railroad right-of-way.

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6. CONSTRAINTS, RECOMMENDATIONS, AND ONGOING AND FUTURE WORK Our itemized constraints deal with hydrologic, vegetative, and security issues that have been flushed out through the course of this study. Importantly, these constraints are set within an overarching desire by the City to utilize Locke-Paddon Wetland Community Park as an attractive gateway feature to the City of Marina from Highway 1, along Reservation Road.

Thus our recommendations are set within this context, and the need to revitalize the Park and surrounding environs.

6.1 Constraints

6.1.1 Hydrologic constraints

1. Due to gradual adjustments in the storm drainage system over many years in the Marina incorporated area, Locke-Paddon Pond has become a perennialized water body, receiving runoff waters from a large portion of the City area.

2. Locke-Paddon Pond is an expression of a shallow groundwater lens, and would therefore exhibit water levels unaffected by any proposed changes to pond bathymetry.

In other words, any suggestion to conduct pond-bottom grading as part of an ecosystem restoration program would not change the elevation of the pond water levels, because they respond to seasonal and regional fluctuations in precipitation and runoff, not direct runoff contributions to the pond. However, pond depth may be altered through grading efforts.

3. The radial grounding wire network associated with the two KIDD radio towers limits the depth of excavation, should restoration efforts propose to alter pond bathymetry through grading or dredging.

4. In terms of water quality, Locke-Paddon Pond serves as a City-scale sink for urban runoff. As such, the evolving water quality will be dependent on the quality of waters from City storm drains and any control measures currently in place or anticipated.

Additionally, resident waterfowl contribute to water quality indices (for example, bacterial concentrations) that often achieve levels inconsistent with public and environmental safety. This latter issue is exacerbated by a public that recreates at the Pond by feeding the waterfowl.

5. As sea levels rise gradually through the next 50 to 100 years and runoff contributions increase (likely, as the City of Marina grows), flooding of circumnavigating trails and adjacent roadways during storm events may become more frequent. Plans are currently underway to make improvements to Reservation Road and the trail that runs along the

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western boundary to alleviate flooding problems. Any future improvements may appropriately take this forecast into account, allowing both flood waters and wetland vegetation to remain at levels below improved trails or boardwalks.

6.1.2 Vegetative constraints

6. Approximately 3.55 acres on the hillslope immediately adjacent to and below the library is committed as a mitigation preserve for Monterey spineflower (Chorizanthe pungens var. pungens) and sand gilia (Gilia tenuiflora).

7. Wetland vegetation (tules and cattails) is not likely to encroach into the central portions of the pond as water levels rise from regional increases in sea level and/or groundwater levels.

8. Any trimming of trees and shrubs should be limited to periods of the year falling outside of nesting season (February 1 to August 31).

6.1.3 Security constraints

1. The Locke-Paddon Wetland Community Park experienced a sense of renewal following the implementation of recommendations made in the 1987 Wetland Enhancement Plan (Callendar and WESCO, 1987). However, the installed infrastructure is showing signs of age, misuse, and deterioration. This detracts from public enjoyment of the Park and encourages mistreatment and use of Park environs by vagrants.

2. The overgrown willow thickets along the southeast margin of the Pond present a security concern: encampments by vagrants are often found within these areas.

3. Public access is limited along the southern and eastern boundaries of the Park—areas that are also overgrown by willow thickets and adjacent to a now-abandoned rail line.

Rehabilitation and integration with the City environment along these boundaries would be beneficial and reduce security problems.

4. There is a general lack of public access and involvement at Locke-Paddon Park, despite its proximity to the Marina Library, high traffic areas, and the City center.

6.2 Recommendations

Our recommendations fall into two major categories: one representing short term improvements to and maintenance of existing facilities along with vegetative rehabilitation and

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improved educational opportunities; the second recommendation includes these measures plus a longer-term re-design of pond bathymetry to improve water quality and habitat variability.

6.2.1 Managing and improving existing resources over the short term, while retaining existing pond bathymetry

1. Native plant rehabilitation. With the existing pond bathymetry and shoreline/adjacent hillslope configuration unchanged over the short term, management of the natural environment is chiefly a botanical issue. Vegetation management entails controlling and/or removing invasives around and within the pond, rehabilitating native plant communities where feasible and desired, and managing aquatic vegetation, if desired.

2. Aquatic vegetation control/removal. We would like to caution that managing aquatic vegetation on an annual or more frequent interval can be costly, and can easily fall off the radar of Park management elements as City personnel changes over time. If management of aquatic vegetation is deemed important (which would be evident to monitoring biologists and botanists; see section 6.3 below), the pond vegetation boundaries need to be defined and minimized to a point that both improves habitat as well as provides an aesthetic relief to the site. The vegetation to water ratio would be developed from agency and consultant input, with an emphasis on establishing or meeting a City budget. Control of aquatic vegetation in this manner is an added cost, but more importantly it is a rather highly specialized function that the City is not equipped to address from both safety and mechanical aspects. Once the plant boundaries are established, the inspection for the existing grounding wires would commence, using a low visibility dive team to probe and look for the grounding wires.

Our thinking is that the use of commercially available subsurface conduit location equipment, as well as the divers to mark the pathways, should produce an accurate map for both current and/or future needs. The location of the wires is critical, given the perceived lack of significant cover and potential for rhizome/root mass ensnarement.

Effective tule control (long term) requires the removal of the emergent plant stalk as well as the crown and rhizomes. This is the only means of achieving plant control in the 18- to 36-month range. To accomplish this, the cutting and removal of the emergent root mass from the water requires the use of floating equipment and a rotovation process.

Typically, the first pass is to cut the emergent vegetation down to the waterline, where the 2” to 6” pieces are collected via a floating aquatic plant harvester and deposited at the shore for off haul/disposal. The rhizomes/root mass is then rototilled (rotovation) to break up the mass and separate the plant matter from the hydro-soil. The plant

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matter will then float, where it is also swept up and removed by the floating harvester.

In this manner, the plants and areas can be selectively removed to address aesthetic, habitat and public interaction needs at the site, leaving (intended) portions of the plant growth/species untouched.

3. Boardwalk removal. Demolish the current and defunct boardwalks which protrude into the pond, in the interest of safety and security and to discourage public waterfowl feeding. Using the same floating equipment as is proposed for aquatic vegetation removal, the existing boardwalk and anchor points could be removed from the lake.

This would be a cost saving operation, as the same tule control equipment would be utilized to remove the sections of the dock from the water and transport them to the shore. This would be the preferable option, as a land based operation would involve a crane or large excavator, and significant peripheral damage to the surrounding landscape. Removal of the dock does not halt the public feeding issues, but with improvements to the shoreline access, the public can be directed to areas where either signage is clearly visible (that would detail the feeding problems) or make it less attractive to partake in waterfowl feeding.

4. Alternative wildlife viewing. Provide viewing decks or other viewing points in place of the boardwalks outside of “bread-crumb throwing” distance. As noted above, however, the opening of additional “windows” to allow for more directed views and or vistas can be accomplished (if needed, but see below) in the same manner as the bulk plant removal. Remaining vegetation provides value for waterfowl and creates barriers to limit water access for a variety of reasons, including safety and or bird use (discouragement).

5. Water quality control. To further combat the water quality problems associated with public feeding of waterfowl, we suggest that the pond periphery, notably the northern pond periphery, be completely enclosed by tules and cattails. This will discourage public feeding of waterfowl by restricting access, while at the same time restricting waterfowl from accessing the shoreline for feeding. A complete circumferential boundary of reedy vegetation may also encourage migratory bird usage (as opposed to resident waterfowl usage) because the tall reeds create a sense of separation and protection from the shoreline and upland areas where humans and “predators” would typically be found. Increased migratory bird usage is consistent with goals and objectives pertaining to creation and maintenance of natural habitat.

209138_Implementation_Plan_2-3-12 58

6. Irrigation of native upland vegetation. Native upland vegetation rehabilitation and restoration will likely require irrigation. One option for irrigation is to use pond water, extracted via solar-powered pump(s) from the Pond. The water is likely to be nutrient- rich, and extracting the water from the Pond would serve to achieve flushing and aeration that may alleviate water quality problems that the Pond now faces (potentially including high bacteria levels). Flushing of pond water would be achieved through the subsurface: as water is extracted from the Pond, replacement would occur through the porous Pond bottom from the local water table (which we have shown earlier in the report is the same water the fills the Pond). Percolation of any irrigation water unused by plants would return to the shallow groundwater lens that serves the Pond. Irrigation would need to be designed and managed so that deficits to Pond water levels would be minimized as water undergoes evapotranspiration following application to uplands. To be consistent with the goals of maintaining a natural setting with minimal environmental footprint, irrigation pumps could be driven by small solar panels attached to the KIDD radio towers, protected within the locked fences and above arms’ reach.

7. Pathway extension. To accompany the Reservation Road and pathway enhancement project current in the planning stages, extend the pathway around the southeastern Park boundary to create a circumferential trail. This pathway could be integrated with facilities designed for the future light rail system at the abandoned rail line, as well as the DiMaggio Center and Park. Such a trail would also provide viewing portals from the higher railway areas to encourage public access and enjoyment of Locke-Paddon Park resources, which may also reduce vagrant populations in that same portion of the Park.

8. Educational opportunities. The educational signage built per recommendations made in the 1987 Wetland Enhancement Plan should be restored, rehabilitated, or rebuilt and redesigned. Additional educational signage may also be developed to accentuate the resources present at the Park (bird populations, historical hydrology and vernal ponds of the Marina area, local vegetation, etc.), and to dovetail with educational programs (new or existing) at the Marina Public Library. Pathways within the park should be widened where existing or new signage is located, to invite educational groups and discussion to use these locations as focal points for educational use. Notification of the signage and educational resources at the Park should be distributed to local schools, libraries, etc., to enhance public use of the Park as a working outdoor library and instructional aid. Educational programs could also be developed with an active

209138_Implementation_Plan_2-3-12 59
monitoring component to compliment the instructional aspect of park signage. For example, a more concerted effort could be made to develop water-quality monitoring or sandy soil hydrology programs in local schools, libraries, and the like. This would complement the sporadic water-quality sampling that is already being done by CSUMB environmental science students.

9. Public use facilities. Restrooms and other public use facilities at the Park need rehabilitation or updating. Most of these facilities were developed in response to the 1987 Plan, and are more than 20 years old.

10. Public use alternatives. Although we suggest that the Park remain a native and natural resource environment for public enjoyment, public participation and usage may improve if a small turf and picnic area is established between the library and parking lot.

Care would need to be taken to minimize the environmental impact of such a facility and its maintenance.

6.2.2 Adjusting pond bathymetry to meet long-term restoration goals

1. Adjust pond bathymetry. An alternative approach to reinvigorating and restoring a more historically natural environment at Locke-Paddon Park would be to modify pond bathymetry to create a more complex range of depths. Added hydrologic complexity would likely lead to more ecologic diversity at the Park. Under this scenario, we would suggest deepening the southern portion of the Pond, while shallowing the pond bottom in northern portion. Deepening should not exceed 12 feet or so, where the establishment of stratification and anoxic conditions may create additional water quality issues. The goal would be to make a seasonal depression in the northern end, thus returning to a more “vernal” regime to part of the Park that once existed across the site prior to City development. According to prior management reports and our analysis, the lake has very little in the way of accumulated sediment, and depending upon the area(s) to be filled, the importation of material may be necessary. Alternatively, the areas of tule removal should have sufficient sediment trapped and could be used, as well as the decomposed plant mass, to fill the area. This would provide a nutrient-rich hydrosoil that would be more consistent with what is found in similar (natural) locations. Re-use of the dredged material would also reduce reconfiguration costs, should this alternative be chosen. However, the feasibility of such an operation is largely unknown, and further geologic and geotechnical study would be required to establish whether pond-

209138_Implementation_Plan_2-3-12 60
bottom sediments could be an effective and economical source of material for a seasonal component to Locke-Paddon Pond.

2. Improve educational signage. The educational signage built per recommendations made in the 1987 Wetland Enhancement Plan should be restored, rehabilitated, or rebuilt and redesigned. Additional educational signage may also be developed to accentuate the resources present at the Park (bird populations, historical hydrology and vernal ponds of the Marina area, local vegetation, etc.), and to dovetail with educational programs (new or existing) at the Marina Public Library. More important and relevant to this long-term restoration plan is to develop educational signage and displays that demonstrate the difference (hydrologic, ecologic) between the deeper perennial portion of the Pond and the shallower seasonal portion, highlighting the importance from an ecologic standpoint. Pathways within the park should be widened where existing or new signage is located, to invite educational groups and discussion to use these locations as focal points for educational use. Notification of the signage and educational resources at the Park should be distributed to local schools, libraries, etc., to enhance public use of the Park as a working outdoor library and instructional aid. Educational programs could also be developed with an active monitoring component to compliment the instructional aspect of park signage. For example, a more concerted effort could be made to develop water quality monitoring or sandy soil hydrology programs in local schools, libraries, and the like.

This would compliment the sporadic water quality sampling that is already being done by CSUMB environmental science students.

6.2.3 Abandoned on-site well near Library
The abandoned well on the property, described earlier in this report, can be dealt with in two ways. If the well taps a shallow perched aquifer (presumably the same that serves Locke- Paddon Pond), re-develop the well as a monitoring well, to tie in with other local and regional hydrologic monitoring networks in the area (see section 6.3 below). Well water could be used to water turf and native vegetation restoration efforts on-site (although extraction of Pond water via solar pumps, as discussed above, is probably preferable). The well would need to be finished at ground surface in a manner consistent with both State standards and safety needs in the Park.

If the well taps a deeper aquifer, it should be decommissioned per Monterey County and State well standards. This would include removing debris within the annulus accessible from

209138_Implementation_Plan_2-3-12 61
ground surface and collapsing and/or sealing the inner and outer casings up to ground surface.

Because of the unique and large diameter of the outer casing, special consideration may be needed to develop the safest solution to decommissioning the well, especially because the well is located on public property in a park setting.

6.3 Recommended Ongoing and Future Work
Implementation of the recommendations made in this study have been met with conceptual approval through presentation and discussion at a joint City Public Works Commission and Recreation and Cultural Services meeting held in October 2011. Details on the required work elements and budget for short- and long-term strategies developed above for this Implementation Plan will be examined in Phase III of this work. Phase IV would consist of building and implementing the design elements described in Phase III.

We recommend that a basic hydrologic and vegetative monitoring program accompany any decision to move forward with Park rehabilitation and reinvigoration. Ongoing monitoring will help refine our existing but much improved understanding of the Park environs, and will help guide any future restoration activities. Hydrologic monitoring in particular will help position the City to adapt strategically for future changes in urban drainage to Locke-Paddon (or other ponds in the City perimeter) and to continual sea level rise, and the influence these changes may have on local or regional groundwater signals. We suggest re-developing the well on-site for incorporation into the existing monitoring site network (Pond stilling well at the KIDD tower and the eastern shoreline piezometer), if the well is shallow. We also suggest adding monitoring sites at other “vernal” ponds nearby, such as the Robin Drive Pond, Lake Drive Pond, or Marina Landing Pond. Staff plates should be installed at each pond, and level- surveyed to the City’s datum. Each monitoring site should be visited annually, during the two weeks following Labor Day. Water levels and specific conductance (“conductivity”) should be recorded at each site. These measurements will allow the City to establish long-term trends, if any. If issues arise in any pond, additional monitoring, similar to the continuous records developed in this report for Locke Paddon Pond, can help address a solution. The measurements will also help establish whether these other ponds are hydrologically linked to Locke Paddon Pond. Monitoring will help the City to adaptively manage this unique park resource, regardless of the restoration strategy employed.

209138_Implementation_Plan_2-3-12 62

7. LIMITATIONS
This report was prepared in general accordance with the accepted standard of practice existing in Northern California at the time the investigations were performed. No other warranties, expressed or implied, are made. It should be recognized that interpretation and evaluation of groundwater-surface water interactions as they pertain to park planning and habitat quality is a difficult and inexact art. Judgments leading to conclusions and recommendations are generally made with an incomplete knowledge of the conditions present. More extensive studies, including additional hydrologic and vegetative monitoring investigations, can reduce the inherent uncertainties associated with such studies. If the client wishes to reduce the uncertainty beyond the level associated with this study, Balance should be notified for additional consultation.

Balance Hydrologics has prepared this report for the client’s exclusive use on this particular project. The report is based in part on work performed by experts in related fields, information provided by the client, topographic and hydrologic data from other sources germane to the project, and/or upon reference values commonly used in the area or developed by sources generally held to be reliable. We have not independently verified the validity, accuracy, or representativeness of all data sources to this or other sites. The recommendations provided in this report are based on the assumption that an appropriate and adequate follow-up program will be conducted (Phase III and IV of this project), and that our firm will be retained at key stages in the project to revise the findings and recommendations described in this report.

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8. REFERENCES
Association of Monterey Bay Area Governments (AMBAG), 1995, Environmental enhancement and mitigation program application, 15p. + Exhibits.

Boule Engineering Comporation, 1986, Salinas Valley ground water model for Monterey County Flood Control and Water Conservation District: consulting report prepared for the Monterey County Flood Control and Water Conservation District, multi-paged.

Burkland and Associates (and Thorup, Richard for William Spangle and Associates), 1975, Geotechnical study for the seismic safety element, Monterey County, California: consulting report prepared for the County of Monterey and the participating municipalities in this study, 125p. + Appendices.

California Coastal Commission, 1992, Staff report – permit amendment for Application No. 3-83-14A4 (AKA A-80-80), 16p. + Exhibits.

Callander Associates and Western Ecological Services Company, 1987, Wetland Enhancement Plan for the City of Marina, California: consulting report prepared for the City of Marina, 66p. + Appendices.

City of Marina, Marina Local Coastal Land Use Plan, 1982, 56p. + Exhibits.

City of Marina Planning Department, 1992, Staff Report for 180 Reservation Road – Coastal Development Permit/Design Review Approval: submitted to Planning Commission for meeting of May 11, 1992, 7p. + Exhibits.

Cooper, W.S., 1967, Coastal dunes of California: Geological Society of America Memoir 104, 131p.

Greene, H.G., 1970, Geology of Southern Monterey Bay and its relation to the ground water basin and salt water intrusion: U.S. Geological Survey Open-File Report 70-141, 50p.

The Habitat Restoration Group and Mitchell Swanson and Associates, 1994, Coastal/Vernal Pond Comprehensive Management Plan: consulting report prepared for City of Marina, multi -paged.

Hameister, D. (Rana Creek Habitat Restoration), 2002, Biological Assessment for the proposed City of Marian Library (APN: 331-210-070).

Hickman, James C., The Jepson Manual: Higher Plants of California. Universi ty of California Press, 1993.

Jones and Stokes Associates, Inc., 1991, Addendum to the Marina County Water D istrict Wastewater Facilities Plan Environmental Impact Report: consulting report prepared for Marina County Water District, multi-paged.

Kennedy/Jenks Consultants, 2004, Final Report, Hydrostratigraphic analysis of the Northern Salinas Valley: consulting report prepared for the Monterey County Water Resources Agency, 48p. + Table + Figures + Appendics.

Kephart, P. and Hameister, D. (Rana Creek Habitat Restoration), 2001, Final restoration and mitigation plan for BT Development Company, L.L.C., Holiday Inn Express Project (2081 -2001-011-03):
consulting report prepared for B.T. Development Company L.L.C., 27p. + Appendices.

209138_Implementation_Plan_2-3-12 64
Kilbourne, R.T. and Mualchin, L., 1980, Geology for planning: Marina and Salinas 7.5’ quadrangles, Monterey County, California: Open File Report 80-7 SF, California Division of Mines and Geology, 59p. + Plates.

Kleinfelder, 2006, Limited geotechnical investigation and pavement evaluation report, proposed Marina project 150 Beach Road Marina, California, TranSystems Project Number P501050104, APN 033 -111- 009: consulting report prepared for TranSystems, 38p. + Plates + Appendices.

Lamphier and Associates, 2000, Draft environmental impact report on the draft Marina General Plan:
consulting report prepared for the City of Marina, multi-paged.

Monterey Bay Engineers, Inc., 2006, Drainage calculations: notes submitted to City of Marina, Marina Public Library, 1p.

Monterey County Water Resources Agency, 1997, Water resources data report, water year 1994 -1995:
report prepared by the Water Resources Management Division with assistance by the Technical Support Group of the Administrative Services Division, 96p. + Appendices.

Monterey Peninsula Regional Park District, 1998, Master Plan of the Monterey Peninsula Regional Park District, 43 p.

Monterey Peninsula Regional Park District Board of Directors, 1998, Agenda Item No. 8B, Locke -Paddon Wetland Community Park: 1p. + Attachments.

Monterey Peninsula Regional Park District, 2001, General Manager Joseph Donofrio Letter to California Department of Fish and Game accepting Locke-Paddon Wetland Community Park as Mitigation Site : 1p.

Oven-Thompson, K., 1991, Facsimile of calculations of Marina Wetland stormwater runoff volumes:

George S. Nolte & Associates, Inc., San Jose, CA, April 22, 1991.

Purkiss-Rose-RSI, 2005, Final Master Plan and Design Development Report, Locke- Paddon Wetland Park:
consulting report prepared for the Monterey Peninsula Regional Park District, 53p.

Rana Creek Habitat Restoration, 2008, Habitat site assessments for City of Marina ponds: consulting data sheets and site investigations prepared for City of Marina, 83 p.

Rana Creek Habitat Restoration, 2009a, City of Marina California Red-Legged Frog Survey Report:
consulting report prepared for City of Marina, 141 p.

Rana Creek Habitat Restoration, 2009b, City of Marina Vernal Ponds General Biological Assessment:
consulting report prepared for City of Marina, 37 p.

Rana Creek Habitat Restoration, 2009c, City of Marina Vernal Ponds General Biological Assessment, Phase I: consulting report prepared for City of Marina, 80 p.

Soil Surveys, Inc., 2002 (updated 2006), Geotechnical investigation for New Marina Public Library Project at Seaside Avenue and Marina Drive (APN 033-121-009): consulting report prepared for City of Marina Department of Public Works, 9p. + Figures + Appendices.

209138_Implementation_Plan_2-3-12 65
Sundt, M., 2002, Marina Library Project Draft Mitigated Negative Declaration and Initial Study:
consulting report prepared by Golden State Planning and Environmental Consulting for the City of Marina, multi-paged + attachments.

Winzler and Kelly and Golden Associates, 2010, Reservation Road improvements from Del Monte Boulevard to Beach Road, 35% submittal: consulting report drawings prepared for City of Marina, multi-paged.

TABLES

Table 1. Summary of hydrologic monitoring observations for Water Year 2010, Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California Remarks
Date/Time
Observer
Staff plate
reading
WSE
Depth to
water
Temperature
Specific
Conductance
at field temp.

Specific
Conductance
(ft) (ft) (ft) (°C) (µS/cm) (µS/cm at 25 °C)
Elevation of Hole #1 (instrumented piezo) n/a
Elevation of Hole #2 n/a
Elevation of Hole #3 n/a
Elevation of Hole #4 (piezo) n/a
Eastern shoreline piezometer (Hole #1) Lat: 36 ° 41'22.7" Long: 121 ° 48'01.9" Hole depth = 3.2', stick-up height=0
No staff plate
12/3/09 14:02 ms - - 3.10 - - -
Installed just landward of transition between tules, blackberry bushes, and upland grasses, on lakeward side of foot path, in line with trend of NE oriented tree line between lake and library. Substrate is mostly coarse sands with minor dark grey to black organic content. Fully slotted along 3.2 foot length, capped at bottom, sealed by 0.4' of bentonite at top, pea gravel liner.
12/4/09 12:42 ms - - 3.00 - - - Levelogger installed in piezometer; rests loosely on tether at bottom of piezo. 12/31/09 12:20 ms - - 2.62 14.3 1050 1344
1/22/10 10:37 ms - - 1.62 - - -
2/17/10 13:34 ms - - 1.61 14.00 2453 3165
Water has slight sulfer odor. Not as much standing pond water in reeds along E.shore.
4/7/10 15:42 ms - - 0.77 13.1 620 819
5/18/10 16:02 ms, mw - - 1.16 14.5 1071 1364
Bottom of the piezometer SCT is 1512 µS/cm at 14.2°C. Smells like sulphur.

Recorded GPS point.
7/9/10 15:34 jp - - 1.80 16.1 1637 1999
SCT at bottom of hole is 2142 µS/cm at 15.7°C, noted stratified SCT in the piezometer, surface water at the piezo is 340 µS/cm at 21°C at edge of water and 545 µS/cm at 20.3°C about 10 ft out.
9/1/10 14:00 jp 2.32 16.6 1253 1511
Bottom of the piezometer SCT is 1332 µS/cm at 16.5°C.
10/25/10 14:39 jp 2.46 16.4 907 1099
SCT increases from top to the bottom of the hole 873 µS/cm to 941 µS/cm at 16.4°C.

Relaunched levelogger.Eastern shoreline piezometer (Hole #4) Lat: 36 ° Long: 121° Hole depth = 1.75', stick-up height= 0.25
No staff plate
12/3/09 14:06 ms - - 1.15 - - - -
2' deep non-instrumented piezometer, fully slotted, not capped at bottom, pea gravel liner, sealed at top with native black organic clay/peat. Substrate is mostly black peat/clay with minor coarse sand content.
12/4/09 12:45 ms - - 0.73 - - - locking top cap and lock installed. 12/31/09 12:30 ms - - 0.49 10.9 765 1072
2/17/10 14:00 ms - - - - - - Submerged by pond on the eastern shoreline. 7/9/10 15:34 jp - - - - - - Could not locate - probably submerged 9/1/10 14:11 jp - - 0.40 15.3 1237 1542
Surface water was approximately 0.5 below top of casing or roughly parallel with dtw in piezometer.
10/25/10 14:45 jp - - 0.46 15.2 1148 1434
SCT increased from top of hole at 1057 µS/cm at 15.1°C to 1238 µS/cm at 15.3°C.

Pond stilling well Lat: 36° Long: 121°
Staff plate zero (0.0')
12/2/09 15:45 ms 2.11 2.11 - 10.30 712 990
Stilling well and staff plate sunk into soft organics and clay at pond bottom. Staff plate goes from 0 to 10'. Stilling well is 8.23' long, fully slotted along length, capped at bottom. Top of stilling well equals 8.625' on staff plate. 12/4/09 12:55 ms 2.11 - - - - -
Levelogger and barologger installed. LL on tether, rests loosely at bottom of stilling well. BL installed in 2" diam PVC pipe mounted horizontally on pier railing near pond stilling well. Because water surface is at 2.105, that leaves 1.70 feet of stilling well below water surface, and 6.53 feet of it exposed above water line. 12/31/09 12:41 ms 2.71 - - 12.5 570 765
HWM=2.71?; Rain washed chalk off of staff plate, but some of it remains on plate screws at 3.25 and above.
1/22/10 10:37 ms 3.84 - - - - -
2/17/10 13:03 ms 3.88 - - 15.2 371 464
HWM=4.07 (last storm?). Pond water level is high, water is clear. Numerous tadpoles (or juvenile fishes).
4/7/10 15:01 ms 4.65 - - 15.5 281 348
HWM ~ 5.2 from last March storrms, local fisherman said easter storm water level rose approximatly 0.3 and will generally rise 6 inches in response to 1 inch of rain, fisherman also said the pond drains and fills quickly
5/18/10 15:24 ms 4.14 - - 18.3 358 413 no notes
7/9/10 14:45 jp 3.35 - - 18.2 491 568
STAFF PLATE, STILLING WELL AND SENSORS HAVE BEEN STOLEN. Stage approximated by measuring water level from top of deck and correlating with photos 7/26/10 16:00 jp, ms 3.15 - - - - -
Recovered missing gage and equipment with the help of Central Coast Bass fisherman. He knew where the vandals had thrown the instruments. Used depth of water of the end of the dock to correlate to previous staff plate install Water Quality ObservationsSite Conditions
209138 Observer's Log.xls, Staff Plate Observer's Log 1 of 2 © 2011 Balance Hydrologics, Inc.

Table 1. Summary of hydrologic monitoring observations for Water Year 2010, Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California Remarks
Date/Time
Observer
Staff plate
reading
WSE
Depth to
water
Temperature
Specific
Conductance
at field temp.

Specific
Conductance
(ft) (ft) (ft) (°C) (µS/cm) (µS/cm at 25 °C)
Elevation of Hole #1 (instrumented piezo) n/a
Elevation of Hole #2 n/a
Elevation of Hole #3 n/a
Elevation of Hole #4 (piezo) n/a
Water Quality ObservationsSite Conditions
7/26/10 16:05 jp, ms 1.77 - 5.72 - - -
NEW pond installation at the radio tower fenced and locked area approximately 50 ft north of previous station at the dock. Pressure transducer was set in approximately

1.03 ft of water out of 1.3 total depth at the installation site. 7-27-10 Notes jp - - - - - -
Central Coast Bass fellow said in the winter the surface water fills and empties the pond fairly quickly. He said it would fall about 1 inch per hour as he watched it for a good portion of the day while fishing. He also said that once the water level has subsided to a certain level the water dropping is almost non existent or very slow (most likely due to the clay liner?). Within the last couple of weeks (from mid July) the water turned somwhat dark/black with something - either decaying material or some sort of biological growth.
9/1/10 13:22 jp 1.36 - - 22.4 690 712
Relaunched levellogger and barologger for data logger time to equal watch time in 15 minute intervals. Water is a brown greenish black with ~0.5 ft visability. Not much odor. Today is supposed to be the start of a small hot spell. 10/25/10 13:59 jp 1.15 19.5 686 767
Can't see definite high water marks. Relaunched levelogger at 14:30 to synch with laptop time. Water is very murky, black brown green.

Parking lot drainage culvert
No staff plate
12/31/09 12:30 ms -- -- -- -- -- --
No discernible HWM. Evidence of flow into pond from storms during past few days below outfall, but no flow.

Locke-Paddon Pond (Pond #2), data from HRG and Swanson, 1994 Staff plate and crest stage gage (separate from those used by Balance Hydrologics in this report) 12/3/1992 -- 1.47 -- -- -- -- -- --
12/13/1992 -- 1.68 -- -- -- -- -- --
1/5/1993 -- 1.40 -- -- -- -- -- crest gage = 1.46
3/21/1993 -- 1.57 -- -- -- -- -- crest gage = 1.78
5/13/1993 -- 2.05 -- -- 18.33 359 -- crest gage = 3.00; pH = 7.8; TDS = 230 µS 6/17/1993 -- 1.73 -- -- 23.89 565 -- pH = 8.3; TDS = 360 µS 8/16/1993 -- 1.00 -- -- 25.56 2190 -- crest gage = 3.10; pH = 8.8; TDS = 1400 µS 9/21/1993 -- 1.27 -- -- 19.44 3125 -- pH = 8.1; TDS = 2000 µS Notes:

Observer Key: (ms) is Mark Strudley, (jp) is Jason Park, (mw) is Mark Woyshner.

WSE = Water Surface Elevation, HWM= High water mark
Specific conductance: Measured in µS/cm in field; then adjusted to 25°C by equation (1.8813774452 - [0.050433063928 * field temp] + [0.00058561144042 * field temp^2]) * Field specific conductance 209138 Observer's Log.xls, Staff Plate Observer's Log 2 of 2 © 2011 Balance Hydrologics, Inc.

Table 2. Daily rainfall (inches) for recording rain gage, Water Year 2010 CIMIS Station #116 Salinas North, Monterey County, California1,2,4 2009 2009 2009 2010 2010 2010 2010 2010 2010 2010 2010 2010 Day Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 0.00 0.00 0.00 0.00 0.00 0.82 0.00 0.00 0.00 0.00 0.01 0.00 3 0.00 0.00 0.00 0.00 0.00 0.94 0.00 0.00 0.00 0.00 0.00 0.00 4 0.00 0.00 0.00 0.00 0.09 0.00 0.86 0.00 0.00 0.00 0.00 0.00 5 0.00 0.00 0.00 0.00 0.01 0.00 0.35 0.00 0.00 0.00 0.00 0.00 6 0.00 0.00 0.06 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 7 0.00 0.00 0.60 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.00 8 0.00 0.00 0.00 0.00 0.03 0.07 0.00 0.00 0.00 0.00 0.00 0.00 9 0.00 0.00 0.00 0.00 0.48 0.01 0.00 0.08 0.00 0.00 0.00 0.00 10 0.00 0.00 0.08 0.00 0.00 0.26 0.00 0.05 0.10 0.00 0.00 0.00 11 0.00 0.00 0.13 0.00 0.00 0.00 0.43 0.00 0.02 0.00 0.01 0.00 12 0.00 0.00 0.42 0.27 0.02 0.35 0.21 0.00 0.00 0.00 0.00 0.00 13 2.02 0.00 0.06 0.17 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 14 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16 0.01 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17 0.00 0.00 0.01 0.23 0.01 0.00 0.00 0.04 0.00 0.00 0.00 0.00 18 0.01 0.01 0.00 0.32 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19 0.08 0.00 0.00 0.67 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20 0.00 0.01 0.00 0.72 0.20 0.00 0.67 0.00 0.00 0.00 0.00 0.00 21 0.00 0.01 0.18 0.19 0.24 0.00 0.03 0.00 0.00 0.00 0.00 0.00 22 0.00 0.00 0.00 0.54 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23 0.00 0.00 0.00 0.04 0.60 0.00 0.00 0.00 0.00 0.00 0.00 0.00 24 0.01 0.00 0.00 0.00 0.41 0.00 0.00 0.00 0.00 0.00 0.00 0.00 25 0.02 0.00 0.00 0.01 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 26 0.00 0.00 0.33 0.34 0.36 0.00 0.00 0.00 0.00 0.00 0.00 0.00 27 0.00 0.00 0.01 0.00 0.27 0.00 0.04 0.13 0.00 0.00 0.00 0.00 28 0.00 0.00 0.04 0.00 0.01 0.00 0.17 0.01 0.00 0.00 0.00 0.00 29 0.00 0.00 0.01 0.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 30 0.00 0.00 0.02 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 31 0.00 0.00 0.00 0.12 0.00 0.00 0.00
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Annual

2.15 0.03 1.95 3.71 2.82 2.65 2.76 0.45 0.12 0.00 0.05 0.00 16.69 Ave 3

0.58 1.33 2.50 2.90 2.48 2.10 1.05 0.39 0.09 0.03 0.04 0.17 13.28 Notes: 1) The rainfall record is from a tipping-bucket recording gage installed by the Department of Water Resources, CIMIS station #116. 2) Most hydrologic and geomorphic monitoring occurs for a period defined as a water year, which begins on October 1 and ends on September 30 of the named year. For example, water year 2010 (WY2010) began on Oct. 1, 2009 and concluded on Sept. 30, 2010
4) Dates of site visits indicated by grey shading.
3) Long term precipitation record taken from CDEC Salinas No.2, Monterey County, CA, 1905 - partial 2011 (WYs 1981-82, 1987, 1989, 2007, and 2010 missing some monthly data).

CIMIS_Salinas_North.xls, CIMIS Salinas N Rain Table WY10 © 2011 Balance Hydrologics, Inc.

Table 3. Daily rainfall (inches) for recording rain gage, Water Year 2010 CDEC station FO2, Fort Ord, California1,2,4
2009 2009 2009 2010 2010 2010 2010 2010 2010 2010 2010 2010 Day Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
1 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00 2 0.00 0.00 0.00 0.00 0.00 0.91 0.00 0.00 0.00 0.00 0.00 0.00 3 0.00 0.00 0.00 0.00 0.00 0.60 0.00 0.00 0.00 0.00 0.00 0.00 4 0.00 0.00 0.00 0.00 0.06 0.01 0.53 0.00 0.00 0.00 0.00 0.00 5 0.00 0.00 0.00 0.00 0.03 0.00 0.44 0.00 0.00 0.00 0.00 0.00 6 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 7 0.00 0.00 0.41 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 8 0.00 0.00 0.00 0.00 0.00 0.15 0.00 0.00 0.00 0.00 0.00 0.00 9 0.00 0.00 0.00 0.00 0.37 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10 0.00 0.00 0.05 0.00 0.01 0.05 0.00 0.01 0.00 0.00 0.00 0.00 11 0.00 0.00 0.04 0.00 0.00 0.00 0.35 0.00 0.00 0.00 0.00 0.00 12 0.00 0.00 0.44 0.25 0.00 0.30 0.06 0.00 0.00 0.00 0.00 0.00 13 1.22 0.00 0.10 0.08 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17 0.00 0.00 0.00 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18 0.00 0.00 0.00 0.49 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19 0.00 0.00 0.00 0.72 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20 0.00 0.00 0.00 0.79 0.00 0.00 0.74 0.00 0.00 0.00 0.00 0.00 21 0.00 0.00 0.15 0.13 0.15 0.00 0.02 0.00 0.00 0.00 0.00 0.00 22 0.00 0.00 0.01 0.56 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23 0.00 0.00 0.00 0.12 0.67 0.00 0.00 0.00 0.00 0.00 0.00 0.00 24 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.00 0.00 25 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 0.00 0.00 0.00 0.00 26 0.00 0.00 0.28 0.51 0.25 0.00 0.00 0.01 0.00 0.00 0.00 0.00 27 0.00 0.00 0.01 0.01 0.25 0.00 0.00 0.16 0.00 0.00 0.00 0.00 28 0.00 0.00 0.02 0.00 0.00 0.00 0.06 0.00 0.00 0.00 0.00 0.00 29 0.00 0.00 0.01 0.13 0.00 0.00 0.00 0.00 0.00 0.00 0.00 30 0.00 0.00 0.01 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 31 0.00 0.00 0.00 0.15 0.00 0.00 0.00
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Annual

1.22 0.00 1.53 3.90 2.24 2.18 2.21 0.21 0.00 0.00 0.00 0.00 13.49 Ave 3

0.58 1.33 2.50 2.90 2.48 2.10 1.05 0.39 0.09 0.03 0.04 0.17 13.28 Notes: 1) The rainfall record is from a recording rain gage at 36.6270°N/121.7869°W. 2) Most hydrologic and geomorphic monitoring occurs for a period defined as a water year, which begins on October 1 and ends on September 30 of the named year. For example, water year 2010 (WY2010) began on Oct. 1, 2009 and concluded on Sept. 30, 2010
4) Dates of site visits indicated by grey shading.
3) Long term precipitation record taken from CDEC Salinas No.2, Monterey County, CA, 1905 - partial 2011 (WYs 1981-82, 1987, 1989, 2007, and 2010 missing some monthly data).

CIMIS_Salinas_North.xls, CDEC FO2 Rain Table WY10 © 2011 Balance Hydrologics, Inc.

Table 4 - Summary of Regulatory Agencies and Permits
Agency  Permits
U.S. Army Corps of Engineers CWA §404 (33 U.S.C. 1344) Permit U.S. Fish & Wildlife Service ESA §7 (50 CFR part 402) consultation, as determined by USACE
California Regional Water Quality Control
Board, Central Coast Region
CWA §401 (33 U.S.C. 1341) Water Quality
Certification; and CWA §402(p) (33 U.S.C.
1342) General Permit for Construction
Activities

California Department of Fish and Game
Lake and Streambed Alteration Agreement
(Code §1602), and compliance with the State
Endangered Species Act (Fish and Game
Code §2080) and Nesting Bird Protection
Codes (Fish and Game Code §3503)
California Coastal Conservancy Amendment to the Marina Local Coastal Land Use Plan

FIGURES

Monterey
Bay
NR
Salinas Ri
ver
Locke-Paddon Pond
Figure 1. Geologic map, Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California
0 1,000 2,000 3,000
Feet
209138 geol map.mxd
−
© 2011 Balance Hydrologics, Inc.

Source: Wagner, D.L.,Greene, H.G.,Saucedo, G.J. and Pridmore, C.L., 2002, Geologic map of the Monterey 30' x 60' quadrangle and adjacent areas, California: California Geological Survey, Regional Geologic Map No. 1, scale 1:100000.

D
D
A
A
A
A
Monterey
Bay
B
A
NR
NRA
Locke-Paddon Pond
Deposits and drainage
associated with Salinas River
BbC
OaD
Df
Mf
Xd
W
Mg
MgW
Cm
MnA
W
MnA
W
W
Mf
Mn
Figure 2. Soil hydrologic groups near Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California
0 1,000 2,000
Feet
209138 soils map.mxd
−
© 2011 Balance Hydrologics, Inc.

Sources: USDA NRCS, USGS, ESRI
Soil Type
BbC, BAYWOOD SAND, 2 TO 15 PERCENT SLOPES
Cm, COASTAL BEACHES
Df, DUNE LAND
Mf, METZ FINE SANDY LOAM
Mg, METZ COMPLEX
MnA, MOCHO SILT LOAM, 0 TO 2 PERCENT SLOPES
OaD, OCEANO LOAMY SAND, 2 TO 15 PERCENT SLOPES
Xd, XERORTHENTS, DISSECTED
Hydrologic Soil Group
A; Excessively drained; Somewhat excessively drained
B; Well drained
C; Poorly drained; Somewhat poorly drained
D; Very limited; Very poorly drained
NR Not rated
Source: NRCS, 2004.

Hwy 1
Watershed =

0.13 sq. mi.
83 ac
Figure 3. Updated ‘anthropogenic’ drainage basin map for Locke-Paddon Wetland Community Park, City of Marina, Monterey County, Californa 0 500 1,000
Feet
209138 wshed map.mxd
−
© 2012 Balance Hydrologics, Inc.

Sources: City of Marina
!.
!.
!.
!.

City of MarinaMonterey!.

San Jose
Stockton
Sacramento
San
Francisco
Legend
Locke-Paddon
Park
Drainage basin boundary
(dashed where uncertain)
Drainage boundaries for
City-managed recharge basins
CIMIS_Salinas_North.xls, SAP monthly figure © 2011 Balance Hydrologics, Inc. 0 1
1 2
2 3
3 4
4 5
October November December January February March April May June July August September Precipitation (in)
CDEC SAP: WYs 1905 - 2010
CDEC FO2: WY 2010
CIMIS Salinas North #116: WY 2010
105-year average rainfall from CDEC SAP by month plotted with monthly total rainfall for Water Year 2010 from CDEC FO2 and CIMIS #116 Monterey County, California.

Figure 4.

CIMIS_Salinas_North.xls, AccumulatedDeparture © 2011 Balance Hydrologics, Inc. -400
-300
-200
-100
0 100
200
300
1905 1925 1945 1965 1985 2005
Percent of accumulated departure
-30
-20
-10
0 10
20 30
Departure from mean (in)
Accumulated percent departure from mean (%)
Departure from mean (in)
Long-term mean annual precipitation (1905 - 2010) = 13.28 in Accumulated departure from long-term mean precipitation, CDEC Station SAP, Salinas No.2, 1905-2010, Monterey County, California.

Departures have not been adjusted for partial years or missing data; no record is available at this station for the unusually wet 1981-1982 period, which substantially skews both the accumulated departure curves and the average annual rainfall. Data is also not available for late winter 1987, winter 1989, and winter 2011 (and few other typically dry summer periods).

Figure 5.
1983
1998
2007
2010
1992-94
CIMIS_Salinas_North.xls, Rain plot WY10 © 2011 Balance Hydrologics, Inc. 0 5
10 15
20 10/1/09
11/1/09
12/2/09
1/2/10
2/2/10
3/5/10
4/5/10
5/6/10
6/6/10
7/7/10
8/7/10
9/7/10
Cumulative rainfall (in)
Cumulative rainfall: Fort Ord CDEC FO2
Cumulative rainfall: Salinas North CIMIS #116
Cumulative precipitation records for local rain gages, Marina area, Monterey County, California, water year 2010. A total of 13.49 inches fell in the Fort Ord area in WY 2010 (CDEC FO2), while 16.69 inches fell in the northern Salinas Valley near the coast (CIMIS #116). Mean annual precipitation in the area of 13.28 inches is based on a 105-year record from the CDEC Salinas No.2 station.

Average annual rainfall is

13.28 inches (CDEC SAP
Salinas No.2, 1905 - 2010)
Total accumulated rainfall in
WY2010 is 16.69 inches at
CIMIS #116
Total accumlated rainfall in
WY2010 is 13.49 inches at
CDEC FO2 (Fort Ord)
Figure 6.

Figure 7. Location of geologic cross sections, Marina and Fort Ord areas and coastal area of Salinas Valley Groundwater Basin (Pressure subarea), Monterey County, California (from Kennedy/Jenks Consultants, 2004).

Stratigraphy developed for cross section B-B’ shown in Figure 8, pertinent to geologic architecture underlying Locke-Paddon Wetland Community Park. 209138 Figure 7.doc © 2011 Balance Hydrologics, Inc.

Figure 8. Local stratigraphy along cross section B-B’, Marina and Fort Ord areas and coastal area of Salinas Valley Groundwater Basin, Monterey County, California (fromKennedy/Jenks Consultants, 2004). © 2011 Balance Hydrologics, Inc. 209138 Figure 8.doc

Figure 9. Seawater intrusion map of ‘Pressure 180-Foot Aquifer’, Salinas Valley Groundwater Basin, Monterey County, California (from Kennedy/Jenks Consultants, 2004). Note that saltwater intrusion had occurred in the Marina area by roughly 1985 for the ‘Pressure 180-Foot Aquifer’.
209138 Figure 9.doc © 2011 Balance Hydrologics, Inc.

Figure 10. Seawater intrusion map of ‘Pressure 400-Foot Aquifer’, Salinas Valley Groundwater Basin, Monterey County, California (from Kennedy/Jenks Consultants, 2004). Note that saltwater intrusion had occurred in the Marina area by roughly 1975 for the ‘Pressure 400-Foot Aquifer’.
209138 Figure 10.doc © 2011 Balance Hydrologics, Inc.
#0
#0#0
#0
#0
#0
#0
Lake Drive Pond
Robin Drive Pond
Safeway Shopping Center
Marina Landing
Shopping Center
Locke-Paddon Wetland
Community Park
New Pond Levelogger
Eastern shoreline piezometer
0 175 350
Feet
−
Sources: Topography and features from City of Marina cad files, based on aerial photography dated 10-7-96. Aerial photo from ESRI world imagery layer. 209138 park gaging.mxd
Figure 11. Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California.

Our newer gaging site in the Pond is shown (“New Pond Levelogger”) at the KIDD radio tower, along with our eastern shoreline piezometer (location of test auger Hole #1). © 2011 Balance Hydrologics, Inc.

Figure 12. Gaging station and soil auger test pit locations, Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California. Panel A shows the replacement installation at the KIDD radio tower following vandalism, and Panel B shows Holes #2-4 near the eastern shoreline piezometer installation.
© 2011 Balance Hydrologics, Inc.209138 Figure 12.doc
#0
#0
#0
#0
#0
#0
Lake Drive Pond
Robin Drive Pond
Marina Landing Pond
Safeway Shopping Center
Marina Landing
Shopping Center
Locke-Paddon Wetland
Community Park
0 100 200 300 400 500
Feet
−
Sources: Topography and features from City of Marina cad files, based on aerial photography dated 10-7-96. Aerial photo from ESRI world imagery layer. 209138 environs.mxd
Figure 13. Greater Locke-Paddon Wetland Community Park environs, City of Marina, Monterey County, California. The Marina Landing Shopping Center, Safeway Shopping Center, and other coastal/vernal ponds are shown. © 2011 Balance Hydrologics, Inc.
209138 East shore piezo.xls, WSE Chart © 2011 Balance Hydrologics, Inc. -4.0
-3.0
-2.0
-1.0

0.0 1.0

2.0 3.0

4.0 5.0

6.0 12/1/09
1/20/10
3/11/10
4/30/10
6/19/10
8/8/10
9/27/10
11/16
/10
Depth to water below ground surface (feet),
and water surface elevation (feet); both unreferenced

0.0 2.0

4.0 6.0

8.0 10.0

12.0 14.0

16.0 18.0
Cumulative Precipitation (in)
Depth to water; eastern shoreline piezometer
Manual measurements; eastern shoreline piezometer
Locke-Paddon Pond water depth (at monitoring location)
Manual measurements, Locke-Paddon Pond
Cum. Precip. (CDEC FO2)
Cum. Precip. (CIMIS 89)
Cum. Precip. (CIMIS 116)
Figure 14. Water depth in Locke-Paddon Pond at western shoreline dock and radio tower, depth to water in shallow piezometer on eastern shoreline, and cumulative rainfall, Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California.

Note the similarity in water level records between the eastern shorline piezometer and Locke-Paddon Pond. Water levels are not surveyed to the same benchmark, and thus do not plot on top of each other (the similarity between records suggest they should).

Pond stilling well and staff plate
moved to KIDD radio tower for
security purposes (gap).

Water Year 2011Water Year 2010
Last download
from water
monitoring
dataloggers:

Oct. 25, 2010
(record
extends to
dashed line)
209138 East shore piezo.xls, WSE Chart (2) © 2011 Balance Hydrologics, Inc. -4.0
-3.0
-2.0
-1.0

0.0 1.0

2.0 3.0

4.0 5.0

6.0 12/1/09
1/20/10
3/11/10
4/30/10
6/19/10
8/8/10
9/27/10
11/16
/10
Depth to water below ground surface (feet),
and water surface elevation (feet); both unreferenced

0.0 5.0

10.0 15.0

20.0 25.0
Temperature (°C)
Depth to water; eastern shoreline piezometer Manual measurements; eastern shoreline piezometer Locke-Paddon Pond water depth (at monitoring location) Manual measurements, Locke-Paddon Pond Eastern shoreline piezometer water temperature Manual temp measurements, eastern shoreline piezometer Pond water temperature (at monitoring location) Manual measurements, Locke-Paddon Pond Figure 15. Water depth in Locke-Paddon Pond at western shoreline dock and radio tower, depth to water in shallow piezometer on eastern shoreline, and water temperature, Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California.

Note the similarity in water level records between the eastern shorline piezometer and Locke-Paddon Pond. Water levels are not surveyed to the same benchmark, and thus do not plot on top of each other (the similarity between records suggest they should).

Pond stilling well and staff plate
moved to KIDD radio tower for
security purposes (gap).

Water Year 2011Water Year 2010
Last download
from water
monitoring
dataloggers:

Oct. 25, 2010
(record
extends to
dashed line)
209138 Observer's Log.xls, SCT and Temp Chart © 2011 Balance Hydrologics, Inc. -4.0
-2.0

0.0 2.0

4.0 6.0

8.0 10.0 12/1/09
1/20/10
3/11/10
4/30/10
6/19/10
8/8/10
9/27/10
11/16
/10
Depth to water below ground surface (feet),
and water surface elevation (feet); both unreferenced
0 500
1000
1500
2000
2500
3000
3500
Specific conductance (mS/cm @ 25°C)
Depth to water; eastern shoreline piezometer
Locke-Paddon Pond water depth (at monitoring location)
Specific conductance (eastern shoreline piezometer)
Specific conductance (Locke-Paddon Pond)
Specific conductance (Hole #4 on eastern shoreline)
Figure 16. Specific conductance and water depth in Locke-Paddon Pond at western shoreline dock and radio tower, and specific conductance and depth to water in shallow piezometer on eastern shoreline, Locke-Paddon Wetland Community Park, City of Marina, Monterey County, California.

Specific conductance declines gradually
and smoothly for the Pond, while conductance in the eastern shoreline piezometer fluctuates more with seasonality.

Pond stilling well and staff plate
moved to KIDD radio tower for
security purposes (gap).

Water Year 2011Water Year 2010
Last download
from water
monitoring
dataloggers:

Oct. 25, 2010
(record
extends to
dashed line)
Figure 17. Vegetation Map, Locke-Paddon Pond,
City of Marina, Monterey County, California
0 100 200
Feet
−
© 2011 Central Coast Wilds
S
ources: Topography and features from City of Marina cad files, based on aerial photography dated 10-7-96.

Vegetation Types of Locke-Paddon Pond
Tule (Low Marsh)
Scirpus acutus
Scirpus californicus
Tule - Cattail Complex (Low Marsh)
Scirpus acutus
Scirpus californicus
Typha latifolia
Cattail (Low Marsh)
Typha latifolia
Willow - Tule Complex (Low-Mid Marsh)
Salix lucida
Salix lasiolepis
Salix laevigata
Scirpus acutus
Scirpus californicus
Pennisetum clandestinum*
Silverweed - Bulrush Complex (Mid Marsh)
Scirpus maritimus
Potentilla anserina
Rush - Wild Rye Complex (Upper Marsh)
Juncus balticus
Leymus triticoides
Euthamia oxidentalis
Carex pansa
Baccharis pilularis
Baccharis douglasiana
Pennisetum clandestinum*
Wetland Mosaic (Upper Marsh)
Salix lucida Salix lasiolepis
Potentilla anserina Rubus ursinus
Leymus triticoides Baccharis douglasiana
Juncus xiphioides Juncus effusus
Carex pansa Hedera Helix*
Holcus lanatus* Genista monspessulana*
Cirsium vulgare* Pennisetum clandestinum*
Willow Complex (Riparian Woodland)
Salix lucida Salix lasiolepis
Potentilla anserina Rubus ursinus
Leymus triticoides Baccharis douglasiana
Juncus xiphioides Juncus effusus
Juncus balticus Urtica dioica
California Blackberry Complex (Riparian Scrub)
Rubus ursinus Juncus balticus
Leymus triticoides Carex pansa
Baccharis pilularis Baccharis douglasiana
Raphanus sativus*
Annual NonNative Grasses (AG)
Ericameria ericoides Lessingia filaginifolia
Heterotheca grandiflora Lotus scoparius
Artemisia californica Croton californicus
Conyza canadensis Eschscholzia californica
Annual Non-Native Grasses*
Coastal Scrub (Coastal Dune Scrub)
Ericameria ericoides Lessingia filaginifolia
Lupinus chamisonis Lotus scoparius
Aretemisia californica Croton californicus
Carex pansa Eschscholzia californica
Coastal Scrub Mittigation Planting (Coastal Dune Scrub) Ericameria ericoides Lessingia filaginifolia
Lupinus chamisonis Lotus scoparius
Aretemisia californica Croton californicus
Carex pansa Eschscholzia californica Eriogonum parvifolium Aretemisia pycnocephala
Eriogonum giganteum Hirschfeldia incana*
Rumex acetosella* Non-Native Annual Grasses*
Monterey Spineflower
Chorizanthe pungens var pungens
(Federally Listed Species - Threatened)
Monterey Cypress
Cupressus macrocarpa
Iceplant
Carpobrotus edulis*
Conicosa pugioniformis*
Poison Hemlock
Conium maculatum*
lockepaddonvegmap.mxd
* Exotic Invasive Plant Species
Figure 18. Approximate Radio Tower Grounding Wire Radii, Locke-Paddon Pond, City of Marina, Monterey County,
California
0 100 200
Feet
−
© 2011 Centra lCoast Wilds
Sources: Topography and features from City of Marina cad files, based on aerial photography dated 10-7-96.

Approximate Grounding Wire Radius
lockepaddongroundingwires.mxd

APPENDICES

APPENDIX A

City of Marina Storm Drainage Maps

State Highway 1
Del Monte Blvd
Eighth St
Reservation Rd
Third Ave
Carmel Ave
Reindollar Ave
Ninth St
Beach Rd
Imjin Parkway
Ramp
First Ave
Lake Dr
Hillcrest Ave
Tenth St
Crescent Ave
Second Ave
Marina Dr
Dunes Dr
Twelfth St
Fifth St
Drew St
De Forest Rd
Abrams Dr
Hayes Cir
Abdy Way
Golf Blvd (Proposed)
Patton Parkway
Cardoza Ave
Salinas Ave Ext.

Palm Ave
Imjin Rd
Carswell St
California Ave
Second Ave Ext (Proposed) Bayer St
Booker St
Brostrom Dr
Melanie Rd
Marina Heights Dr
Lynscott Dr
Lake Ct
Michael Dr
Sunset Ave
Susan Ave
Sixth Ave
Tallmon St
Salinas Ave
Fourth Ave
Thirteenth St
Robin Dr
Seaside Ct
Seacrest Ave
Vaughan Ave
Lindsey St
King Cir
Walker St
Grant St
Hilo Ave
Ellen Ct
Fifth Ave
Villa Cir
Seaside Cir
Vista Del Camino
DX Dr
Bostick Ave
Lapis Rd
Paddon Pl
Paul Davis Dr
Bayer Dr
Parson Cir
Everett Dr
Lillian Pl
Healy Ave
Eddy St
Jean St
Aaron Way
Sunrise Ave
Kennedy Ct
Messinger Dr
Michelle Ct
Crescent St
Cosky Dr
Hibbing Cir
Vera Lane
Nicklas Lane
Bradley Cir
Viking St
Busby Ln
Steven Ct
Linde Cir
Crestview Ct
Martin Cir
Carmelo Cir
Exeter Pl
Dolphin Cir
Shuler Cir
Windsor Ct
White Cir
Harris Ct
Ocean Terrace
Mildred Ct
Commercial Driveway #1
Rose Ln
Ramp
State Highway 1
Ramp
Ramp
California Ave
Fifth Ave
Abrams DrAbrams Dr
Imjin Parkway
Crescent Ave
Imjin Parkway
Fourth Ave
24 25
98 28
23 0
15 27
65 60
11 49
4 41
31 22
3634
0 2
73 14
16 38
54 51
7 76
19 58
21 30
45 56
75 0
0 6766 74
20 55
47 32
48 71
57 61
70 40
10 17
29 68
1 69
46 12
18 39
77 72
3 79
42 26
Storm Drain Map
0 1,250 2,500 3,750 5,000625
Feet
Legend
Storm Drain Inlets and Manholes
Storm Drain Pipes
Percolation Lots
Parcels
Roads

APPENDIX B

List of all Vascular Plant Species

Locke‐Paddon Community Wetland Park
Comprehensive Species List
Species Origin Status
Acacia sp. *
Amaranthus albus *
Anagallis arvensis *
Artemisia californica N
Artemisia douglasiana N
Astragalus gambelianus N
Avena barbata *
Baccharis douglasii N
Baccharis pilularis var. consanguinea N
Briza maxima *
Bromus diandrus *
Bromus hordeaceus *
Bromus stamineus *
Camissonia cheiranthifolia ssp.  N
Camissonia micrantha N
Cardionema ramosissimum N
Carduus pycnocephalus *
Carex barbarae N
Carex pansa N
Carpobrotus edulis *
Chorizanthe pungens var pungens N Fed Threatened
Chrysanthemum coronarium? *
Cirsium vulgare *
Conicosa pugioniformis *
Conium maculatum *
Conyza canadensis N
Cotula sp. *
Croton californicus N
Cupressus macrocarpa n
Cynadon dactylon *
Cyperus eragrostis N
Dactylis glomerata *
Drosanthemum floribundum *
Ehrharta calycina *
Epilobium ciliatum N
Ericameria ericoides N
Eriogonum giganteum n
Eriogonum parvifolium N
Erodium botrys *
Erodium cicutarium *
Eschscholzia californica n
Euthamia occidentalis N
Festuca arundinacea *
Festuca rubra n
Frankenia salina N
Genista monspessulana *
Geranium dissectum *
Geranium pelargonium x hortorum *
Gnaphalium luteo‐album *
Hedera helix *
Heterotheca grandiflora n
Hirshfeldia incana *
Hordeum murinam ssp. leporinum *
Holcus lanatus *
Hypocharis glabra *
Juncus balticus N
Juncus bufonius N
Juncus effusus var. brunneus N
Juncus xiphioides N
Lactuca serriola *
Lavatera assurgentiflora n
Lessingia filaginifolia N
Leymus triticoides N
Limonium sinuatum *
Lobularia maritima *
Lolium perenne *
Lotus purshianus var. purshianus N
Lotus scoparius N
Lupinus chamissonis N
Lupinus nanus N
Lythrum hyssopifolia *
Madia sativa N
Malva (nicaensis?) *
Marah fabaceus N
Medicago polymorpha *
Melilotus sp. *
Myoporum parvifolium *
Pennisetum clandestinum *
Phalaris aquatica *
Picris echioides *
Pinus radiata n
Plantago coronopus *
Plantago lanceolata *
Plantago major *
Polypogon monspeliensis *
Potentilla anserina ssp.pacifica N
Quercus agrifolia N
Raphanus sativa *
Rhamnus californica N
Rosa sp. *
Rubus ursinus *
Rumex acetosella *
Rumex crispus *
Sagina sp. ?
Salix laevigata N
Salix lasiolepis N
Salix lucida ssp. lasiandra N
Scirpus acutus var. occidentallis N
Scirpus californicus N
Scirpus maritimus N
Senecio vulgaris *
Silene gallica *
Sonchus asper *
Spergularia arvensis *
Tanacetum parthenium *
Taraxicum officinale *
Tetragonium tretragonioides *
Trifolium angustifolium *
Trifolium campestre *
Typha latifolia N
Urtica dioica N
Vicia sativa *
Vulpia bromoides *
Origin Key
N designates likely native to site
* designates not native to California
? designates insufficient data to determine origin
n designates native to California, but probably not to site

APPENDIX C

City of Monterey City Code on Feeding Wildlife

Appendix C

City of Monterey City Code
Park & Wildlife Rules

Park Rules
Chapter 23, Parks & Lakes
Article 2. El Estero Park.

Sec. 23-25. Feeding of Birds and Animals.

It shall be unlawful to feed any bird or animal, except a domestic pet under the person’s jurisdiction and control within El Estero Park.

Seven Good Reasons Why You Shouldn't Feed Wildlife

1. Animals have specialized diets and can die from the wrong foods. If a baby animal receives the wrong diet, even for a day or two, it can damage developing bone and muscle forever. The wrong foods cause disease, mouth injures, throat obstructions and death.

2. Providing an artificial food source causes adults to produce large families that cannot be supported by the natural food supply. Overpopulation leads to starvation and disease, some of which are dangerous to humans.

3. It is illegal to feed wildlife. Monterey County, Pacific Grove, Monterey and other cities all have ordinances that prohibit feeding of wildlife.

4. Feeding causes wild animals to lose their natural fear of humans. Wildlife can become an easy target, or the bold advances of an animal may be misinterpreted as an "attack".

5. Feeding changes behavior, often with catastrophic results. Feeding can cause death by preventing a species from migrating. It can also cause harmful interaction between species who usually don’t compete for food.

6. You can be injured when you do not keep a respectful distance from wild animals.

Wildlife can misinterpret your actions. They may not know where the food stops and your fingers begin. Once again, animals lose when people complain of being bitten or "attacked."

7. Providing food in residential areas (besides birdseed feeders) often leads to property damage and unwelcome "houseguests". Sometimes people feed wildlife inadvertently when they leave pet food dishes outside or do not secure garbage.

You can help our wildlife by not feeding them and by passing this info onto someone who is not yet informed.