Sacramento City Council
October 21, 2025

APPENDIX D4. South Sacramento Streams, Reach 9 Floodwall Modification Drawings, USACE File No. 1-04-508

NAVD 29

Appendix J1.

American River South ULDC
Recommended Right of Way Plan -
MBK Engineers

SACRAMENTO COUNTY AND CITY OF

SACRAMENTO

RECOMMENDED RIGHT-OF-WAY PLAN TO
COMPLY WITH ULDC CRITERIA 7.11

AMERICAN RIVER SOUTH LEVEE SYSTEM
APRIL 2025

FRAMEWORK FOR ADDRESSING RIGHT-OF-WAY CONFLICTS
This plan is prepared by MBK Engineers, the certifying engineer for the American River South Urban Levee Design Criteria (ULDC [DWR, 2012]) Engineering Evaluation, under contract by the Sacramento Area Flood Control Agency (SAFCA). The American River South Levee System does not meet ULDC Rightof-Way (ROW) Criteria 7.11. As such, the Engineer’s Evaluation requires that the City of Sacramento and the County of Sacramento (City and County) prepare a ROW Implementation Plan which identifies a long-term strategy to obtain the necessary rights to meet ULDC Criteria 7.11 requirements1 . This ROW
Implementation Plan should be prepared within 1-year from adoption of the American River South Levee System’s Urban Levee Design Criteria Engineer’s Report and shared with SAFCA and the American River Flood Control District (ARFCD).

This report summarizes the evaluation rationale and recommendations for the City and County to incorporate into the ROW Implementation Plan in order to comply with ULDC Criteria 7.11.

Right-of-Way data has been collected on existing, recorded, easements and fee title ownership status.

Current topographic survey data and landside and waterside levee toe alignments have also been gathered. To confirm easements, levee toe approximation, and offset distances, the attached ROW maps include the ULDC ROW criteria as offset lines. This was done in order to perform a visual evaluation of available property or easement for operations and maintenance (O&M), flood fighting, and future improvements.
1 ULDC (DWR, 2012)
American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 2
A preliminary evaluation of available ROW information is provided that identifies where ROW criteria is not met. Summary tables include properties where a 20-foot landside zone for visibility is available; properties where a 10-foot landside clear distance for access is available; and remaining properties, which do not meet either the 10-foot landside clear distance or the 20-foot landside zone. The deficiencies are compared to other conflicts found during the review of encroachments, penetrations, and O&M activities.

The identified conflicts are the basis of the ROW Plan. These recommendations focus on four categories of non-compliant properties, based on their impact on ROW:
 Property boundaries or easements less than 10-feet from the landside or waterside levee toes.  Locations where 20-feet of visibility beyond the landside levee toe is not present.  Locations where 10- to 20-feet of property or flood easement are present.  Locations where easement rights exist, but encroachments prevent proper maintenance/inspection/flood fight capabilities.

Conflicts with encroachments and O&M activities will fall into one of these categories based on severity of impact. For the second category ROW conflicts, visibility is one of the criteria; thus, review of fences in these areas was a part of the review and planning process.

The purpose of the ROW Implementation Plan is to show progress is being made for the effective period of the ULOP finding, at each incremental 5-year review, for a duration of 20 years or until the finding is superseded.

BACKGROUND
The ULDC requires urban and urbanizing areas to allow adequate room for maintenance, inspection, patrols during high water events, and for flood-fighting; allow additional room to expand facilities in the future; and prohibit excavations and land modifications that would endanger the integrity of the flood protection system.

More specifically, the ULDC requires fee title or an easement for the entire levee prism extending to a minimum of 20-feet beyond the landside toe of the flood protection system for access and inspection.

Where adjacent lands are developed or developing, and the minimum 20-feet cannot be acquired, alternatives to obtaining the landward 20-feet in fee or easement include:
 Obtaining a minimum 10-foot-wide landside access zone through fee, or  Obtaining an easement and/or securing visibility for the 20-foot zone landward of the levee toe.

Furthermore, waterward of the levee prism where there is sufficient area to do so without resulting in the loss of sensitive riparian habitat, consideration should be given to acquiring a 15-foot-wide zone for inspection and maintenance. Please refer to the following cross section (Figure 1).

American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 3
Figure 1. Right-of-Way Cross Section
In addition to the minimums required by the ULDC for access and inspection, the ULDC recommends acquiring right-of-way that has a width equal to at least four times the levee height or 50-feet, whichever is greater, on the landside of the 20-foot clear zone for longer-term flood protection. Lastly, the ULDC recommends that the City or County adopt restrictions on excavations within 200-feet to 400- feet depending on the levee height.

Prior to the publication of the ULDC in 2012, SAFCA commenced a levee improvement program with the goal of providing a 200-year level of flood protection. Most of the levees are located within urban areas with dense residential development within 20-feet of the landside levee toe. As the program has progressed, SAFCA strived to acquire 20-feet from both the landside and waterside toes wherever possible. The American River South Levee System includes the American River South (left) Levee; Sacramento River East (left) Levee; and Beach Lake North (right) Levee. Beach Lake North (right) Levee was not included as part of this evaluation. In general, a majority of the American River South Levee System does not have a minimum of 20-feet in fee-title or easement. Despite not having fee-title or easement, the entire levee system meets ULDC for right-of-way through a reduced landside corridor and/or 20-foot “free and clear” zone. Each of the locations lacking 20-feet in fee-title or easement are discussed below.

The attached right-of-way maps depict the lands and ownership status as of December 2024. Minor road crossings are not highlighted, as these rights are owned by the City or County. Levee operation and maintenance of the American River South Levee System is performed by the American River Flood Control District (ARFCD).

ARFCD provides an annual mailing notice prior to the flood season to alert the residents immediately adjacent to the levee toe of the importance of preserving the levee easement and to provide a reminder to contact the District if they see any problems with the levee. Additionally, ARFCD mails a yearly newsletter to all homes protected by the levees. This newsletter discusses topics such as the purpose and role of the District, current and upcoming projects, being flood aware, the importance of flood insurance, and to be aware of District equipment and patrols during the flood season.

American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 4

APPLICABLE LAND USE CODES
The applicable land use agency codes that cover ULDC requirements are provided below.

From the Sacramento 2040 General Plan, adopted by City Council on February 27, 2024:
 ERC-6.6 Flood Regulations. The City shall continue to regulate new development in accordance with State requirements for 200-year level of protection and federal requirements for 100-year level of protection.
 ERC-6.10 Levee Setbacks for New Development. The City shall require adequate setbacks from flood control levees and prohibit new development from using levees as a primary access point, consistent with local, regional, State, and federal design and management standards.  ERC-6.11 Unobstructed Access to Levees. The City shall provide unobstructed access, whenever feasible, on City-owned land adjacent to levees for maintenance and emergencies.

From the Sacramento County General Plan of 2005 – 2030, adopted by the Sacramento County Board of Supervisors on November 9, 2011, as amended:

Land-Use Element, Amended December 13, 2022 – this reflects the 100-year floodplain.

Sacramento County Zoning Code, adopted by the Sacramento County Board of Supervisors, February 2024.
 4.2.3.E 200-year Floodplain. The area adjoining a river, stream, or water course which is subject to inundation by the 200-year flood.
 4.2.5. Development Standards for Property Adjacent to Designated Tributaries. No building or structure shall be erected or maintained within the 100-year floodplain, or within the 200-year floodplain in areas subject to the Urban Level of Flood Protection, of designated tributaries, as defined in Section 4.2.3, and no lot shall be created unless the standards and requirements set forth in this Section are complied with and maintained. The locations of “designated tributaries indicated on the Comprehensive Zoning Plan are approximate. Therefore, in order to ensure compliance with the provisions of this Section, the proponent of any application for entitlement on any property located within 200 feet of the center line of a designated tributary must demonstrate the applicability of development standards set forth in this Section.  4.7.3.A Development Standards. No building or structure other than an accessory building is located closer than 35 feet, and no accessory building* is located closer than 25-feet to the landward toe of the levee. Note: * although not specifically stated, pools are included in this category of construction and construction should not be allowed within 25-feet of the levee.

ROW MITIGATION ALTERNATIVES
To summarize the discussion provided above, here are recommended alternatives that may be utilized to remediate parcels that do not exhibit the required right-of-way needed to meet ULDC.  Purchase (fee title) or acquire permanent flood easements on property located within 10-feet of the landside or waterside levee toes.

American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 5
 For property owned by the City or County, acquire a permanent flood easements, where property is located within 0- to 20-feet of the landside or waterside levee toes.  For property owned by a public entity, like the State of California or local sanitation district, seek to acquire a permanent flood easement, where property is located within 0-20 feet of the landside or waterside levee toes.
 Work with property owners to provide 20-feet of visibility beyond the landside levee toe in the form of see-through fencing and maintenance of vegetation to allow observation of seepage, through either:
o Creation of new City/County ordinance or zoning code that will be enforced; o Coordination between City/County/LMA with property owners on an individual basis to make improvements during sale of property or requests for permits; or o Other option.
 Where flood easements are missing, work with CVFPB and SAFCA to determine why and determine the path on how to acquire in the future.
 In locations where easement rights exist, but encroachments prevent proper maintenance/inspection/flood fight capabilities, the land use agency will need to assist LMA in enforcing easement rights.

Selection of an alternative will be up to the land use agency and will require input from various parties.

The information provided in this plan is to be utilized for planning purposes only and is not meant to be the only option to mitigate these deficiencies.

FINDINGS
Following are the ROW deficiency findings from this data review and basis for the needed ROW recommendations for the two levee segments: American River South Levee and Sacramento River East Levee.

AMERCIAN RIVER SOUTH LEVEE
American River South Levee Station 1000+00 to 1009+50
The landside toe ROW is 0-feet with 20-feet of visibility along a majority of this reach, however, heavy vegetation is present behind the hotels which reduce visibility to less than 10 feet. An SSJDD Easement exists under the levee footprint extending up to 50-feet waterward of the levee. The levee can be patrolled from the crest and backyards may be accessed from adjacent residential roadways. The zoning code should be enforced to confirm that future development does not impact visibility at the landside of the levee. In accordance with the County Zoning Code Section 4.7.3 Development Standards, specifically for Lots Protected by Levees (Section 4.7.3.A) which restricts construction of structures to no closer than 25-feet from the landside levee toe. The City should acquire an easement on the property landside of American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 6
the levee toe for the 20-foot clear zone. If this is not possible, an ordinance should be prepared to require land owners to clear vegetation such that a 20-foot visibility zone is present.

American River South Station 1009+50 to 1014+50
This is Interstate Highway 5 and Jibboom Street, which are transportation corridors. Coordination required between LMA, City and County. An SSJDD Easement exists under the levee footprint extending approximately 50-feet waterward of the levee. Additionally, we are able to access the bridge deck and have visibility to the landside and waterside levee toe areas. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1014+50 to 1099+00
This reach is adjacent to commercial and industrial properties with driving lanes and parking lots adjacent to the levee. There is approximately 0 to 20-feet of easement with 20-foot visibility present.

An SSJDD Easement exists under the levee footprint extending approximately 0-feet to 20-feet landward and up to 300-feet waterward of the levee. However, the SSJDD easement is missing between Stations 1027+50 and 1029+00 and between Stations 1038+00 and 1052+50. This easement should be pursued or researched to understand why it is missing. The levee can be patrolled and inspected from the crest and access to the toe may be provided from public streets.

The zoning code should be enforced to confirm that future development does not impact visibility at the landside of the levee. In accordance with the County Zoning Code Section 4.7.3 Development Standards, specifically for Lots Protected by Levees (Section 4.7.3.A) which restricts construction of structures to no closer than 25-feet from the landside levee toe. The City should acquire an easement on the property landside of the levee toe for the 20-foot clear zone. If this is not possible, an ordinance should be prepared to require land owners to clear vegetation such that a 20-foot visibility zone is present.

American River South Station 1099+00 to 1102+00
This is State Highway 160 which is a transportation corridor. Coordination required between LMA, City and County. An SSJDD Easement exists under the levee footprint extending approximately 5-feet to 20- feet landward and up to 200-feet waterward of the levee. Additionally, we are able to access the bridge deck and have visibility to the landside and waterside levee toe areas. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1102+00 to 1109+50
The landside toe ROW is approximately 10-feet with 20-feet of visibility. An SSJDD Easement exists under the levee footprint extending approximately 10-feet landward and up to 300-feet waterward of the levee.

In accordance with the County Zoning Code Section 4.7.3 Development Standards, specifically for Lots Protected by Levees (Section 4.7.3.A) which restricts construction of structures to no closer than 25-feet from the landside levee toe. Acquire an easement on the landside of the levee toe for the 20-foot clear zone or ensure the zoning code is enforced.

American River South Station 1109+50 to 1120+00
American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 7
This is a transportation corridor for three railroad crossings: Western Railway, UPRR, and Sacramento Northern Railway. Coordination is required between LMA, City and County, and railroad agencies. An SSJDD Easement exists under the levee footprint extending approximately 5-feet to 20-feet landward and up to 200-feet waterward of the levee. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1120+00 to 1141+50
This reach includes undeveloped and agricultural properties along the landside of the levee. There is approximately 20-feet of visibility. An SSJDD Easement exists under the levee footprint extending approximately 10-feet to 30-feet landward and up to 250-feet waterward of the levee. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1141+50 to 1194+00
This reach is on high ground. An SSJDD Easement exists under the levee footprint extending approximately 5-feet to 20-feet landward and up to 200-feet waterward of the levee. An easement should be requested between Stations 1141+50 and 1150+80 and between Stations 1158+00 and 1167+00 to obtain a minimum 20-foot wide easement for flood patrolling.

American River South Station 1194+00 to 1198+00
This is South Pacific Railroad which is a transportation corridor. Coordination required between LMA, City and County, and SPRR. An SSJDD Easement exists under the levee footprint extending approximately 5-feet to 20-feet landward and up to 200-feet waterward of the levee. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1198+00 to 1203+00
This reach is on high ground. An SSJDD Easement exists under the levee footprint extending approximately 5-feet to 20-feet landward and up to 200-feet waterward of the levee. City owned property within this reach should be reviewed to acquire an easement for flood control.

American River South Station 1203+00 to 1205+50
This is Capital City Freeway which is a transportation corridor. Coordination required between LMA, City and County. An SSJDD Easement exists under the levee footprint extending approximately 5-feet to 20- feet landward and up to 200-feet waterward of the levee. Additionally, we are able to access the bridge deck and have visibility to the landside and waterside levee toe areas. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1205+50 to 1242+00
The landside toe ROW is less than 10-feet with 20-feet of visibility. An SSJDD Easement exists under the levee footprint extending approximately less than 5-feet landward and up to 200-feet waterward of the levee. However, a City Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 8
American River South Station 1242+00 to 1293+00
There is approximately 10-feet of easement present with 20-feet of visibility. An SSJDD Easement exists under the levee footprint extending approximately 10-feet landward and up to 250-feet waterward of the levee. City owned property between Stations 1273+00 and 1281+50 should be reviewed to acquire an easement for flood control. Additionally, a City Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

American River South Station 1293+00 to 1320+00
There is approximately 5 to 10-feet of easement with similar visibility. An SSJDD Easement exists under the levee footprint extending up to 250-feet waterward of the levee and ARFCD owns 20-feet fee title at the landside toe of the levee from SSJDD easement to the property line. This fee title zone may be encroached upon by the adjacent residential properties. The City may need to assist with enforcing relocation of fences and other encroachments to maintain the ARFCD ROW. Additionally, a City Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

American River South Station 1320+00 to 1321+00
This is Fair Oaks Boulevard which is a transportation corridor. Coordination required between LMA, City and County. An SSJDD Easement exists under the levee footprint extending approximately 5-feet to 20- feet landward and up to 200-feet waterward of the levee. Additionally, we are able to access the bridge deck and have visibility to the landside and waterside levee toe areas. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1321+00 to 1360+00
This levee segment is adjacent to Sacramento State University. There is approximately 10-feet of easement present with 20-feet of visibility. An SSJDD Easement exists under the levee footprint extending approximately 5-feet to 20-feet landward and up to 250-feet waterward of the levee. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1360+00 to 1370+00
This reach is on high ground adjacent to the City of Sacramento Water Treatment Plan. An SSJDD Easement exists under the levee footprint extending approximately 10-feet landward and up to 50-feet waterward of the levee. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1370+00 to 1386+00
This levee segment is adjacent to high density housing. There is approximately 10-feet of easement with 20-feet of visibility. An SSJDD Easement exists under the levee footprint extending approximately 20- feet landward and up to 50-feet waterward of the levee or to the fence line. The levee can be patrolled American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 9
from the crest and backyards may be accessed from adjacent residential roadways. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1386+00 to 1392+00
This is Howe Avenue which is a transportation corridor and property owned by ARFCD. Coordination required between LMA, City and County. An SSJDD Easement exists under the levee footprint extending approximately 5-feet to 20-feet landward and up to 200-feet waterward of the levee. Additionally, we are able to access the bridge deck and have visibility to the landside and waterside levee toe areas.

There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1392+00 to 1457+00
This levee segment is bordered by high density housing with varying amount of landside toe ROW, however, 20-feet of visibility is present. Need to acquire minimum of 10-feet of easement or fee title from the County. An SSJDD Easement exists under the levee footprint extending approximately less than 5-feet to 10-feet landward and up to 600-feet waterward of the levee. The levee can be patrolled from the crest and backyards may be accessed from adjacent residential roadways. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1457+00 to 1467+00
The landside toe ROW is less than 10-feet with 20-feet of visibility. N An SSJDD Easement exists under the levee footprint extending approximately less than 10-feet landward and up to 600-feet waterward of the levee. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1467+00 to 1469+00
This is Watt Avenue which is a transportation corridor. Coordination required between LMA, City and County. An SSJDD Easement exists under the levee footprint extending approximately 5-feet to 20-feet landward and up to 200-feet waterward of the levee. Additionally, we are able to access the bridge deck and have visibility to the landside and waterside levee toe areas. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1469+00 to 1476+00
This levee segment is bordered by high density housing with varying amount of landside toe ROW, however, 20-feet of visibility is present. An SSJDD Easement exists under the levee footprint extending approximately 5-feet to 20-feet landward and up to 250-feet waterward of the levee. The levee can be patrolled from the crest and backyards may be accessed from adjacent residential roadways. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1492+50 to 1502+20
There is approximately 10-feet of easement present with limited visibility. A SSJDD Easement exists under the levee footprint extending approximately 5-feet to 20-feet landward and up to 200-feet waterward of the levee or to the fence line. The levee can be patrolled from the crest and backyards may be accessed from adjacent residential roadways. There is no intent to acquire additional rights-of- American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 10
way for this reach. However, a County Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

American River South Station 1502+20 to 1509+00
The landside toe ROW is approximately less than 5-feet with 20-feet of visibility. An SSJDD Easement exists under the levee footprint extending approximately 5-feet landward and up to 300-feet waterward of the levee. The levee can be patrolled from the crest and backyards may be accessed from adjacent residential roadways. There is no intent to acquire additional rights-of-way for this reach. However, a County Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

American River South Station 1509+00 to 1512+20
There is approximately 10-feet to 15-feet of easement present with 20-feet of visibility. An SSJDD Easement exists under the levee footprint extending approximately 10-feet to 15-feet landward and up to 300-feet waterward of the levee. There is no intent to acquire additional rights-of-way for this reach. However, a County Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

American River South Station 1512+20 to 1516+00
The landside toe ROW is approximately less than 5-feet with 20-feet of visibility. An SSJDD Easement exists under the levee footprint extending 300-feet waterward of the levee. The levee can be patrolled from the crest and backyards may be accessed from adjacent residential roadways. There is no intent to acquire additional rights-of-way for this reach. However, a County Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

American River South Station 1516+00 to 1526+20
There is approximately 10-feet of easement present with limited visibility. An SSJDD Easement exists under the levee footprint extending approximately 10-feet landward and up to 300-feet waterward of the levee. The levee can be patrolled from the crest and backyards may be accessed from adjacent residential roadways. There is no intent to acquire additional rights-of-way for this reach. However, a County Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

American River South Station 1526+20 to 1555+50
The landside toe ROW is approximately less than 5-feet with 20-feet of visibility. An SSJDD Easement exists under the levee footprint extending 300-feet waterward of the levee. The levee can be patrolled from the crest and backyards may be accessed from adjacent residential roadways. There is no intent to acquire additional rights-of-way for this reach. However, a County Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 11
American River South Station 1555+50 to 1591+25
This is the Mayhew Drain closure structure which crosses the Mayhew Drain and includes a levee which connects the right and left bank Mayhew Drain levee. An SSJDD Easement exists under the levee footprint extending approximately 100-feet upstream and downstream of the structure. There is no intent to acquire additional rights-of-way for this reach.

American River South Station 1591+00 to 1595+50
There is approximately 20-feet of ROW present with visibility. An SSJDD Easement exists under the levee footprint extending approximately 20-feet landward and up to 50-feet waterward of the levee. The levee can be patrolled from the crest and backyards may be accessed from adjacent residential roadways. There is no intent to acquire additional rights-of-way for this reach. However, a County Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

American River South Station 1595+50 to 1635+50
There is approximately 5 to 10-feet of easement present on the landside of the levee with 20-feet of visibility. An SSJDD Easement exists under the levee footprint extending approximately 5-feet to 10-feet landward and up to 250-feet waterward of the levee. The levee can be patrolled from the crest and backyards may be accessed from adjacent residential roadways. There is no intent to acquire additional rights-of-way for this reach. However, a County Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

SACRAMENTO RIVER EAST LEVEE
Sacramento River East Levee Station 1000+00 to 1019+00
The landside toe ROW is approximately less than 5-feet with 20-feet of visibility. An SSJDD Easement exists under the levee footprint extending approximately 70 to 350-feet waterward of the levee, except for a segment between Stations 1008+50 and 1011+50 on City owner property where the easement is missing. The missing SSJDD easement should be researched and obtained if possible.

Sacramento River East Levee Station 1019+00 to 1039+00
This reach is adjacent to Jibboom Street which creates a high ground condition. An SSJDD Easement does not exist on State Lands Commission property. However, we are able to access the bridge deck and have visibility to the landside and waterside levee toe areas. The missing SSJDD easement should be researched and obtained if possible.

Sacramento River East Levee Station 1039+00 to 1039+50
This is C Street intersection with I and J Streets which is a transportation corridor. Coordination required between LMA, City and County. An SSJDD Easement does not exist. However, we are able to access the American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 12
bridge deck and have visibility to the landside and waterside levee toe areas. The missing SSJDD easement should be researched and obtained if possible.

Sacramento East Levee Station 1039+50 to 1060+00
The landside toe ROW is approximately 0-feet with 20-feet of visibility. This is an area adjacent to development built up adjacent to the river embankment without a levee. Floodwalls are present for a majority of this reach. An SSJDD Easement does not exist on the State and City properties. The missing SSJDD easement should be researched and obtained if possible.

Sacramento River East Levee Station 1060+00 to 1061+00
This is the Tower Bridge transportation corridor. Coordination required between LMA, City and County.

An SSJDD Easement does not exist. However, we are able to access the bridge deck and have visibility to the landside and waterside levee toe areas. The missing SSJDD easement should be researched and obtained if possible.

Sacramento River East Levee Station 1061+00 to 1064+50
The landside toe ROW is approximately 0-feet with 20-feet of visibility. This is an area adjacent to development built up adjacent to the river embankment without a levee. Floodwalls are present along this reach. An SSJDD Easement does not exist on City property. The missing SSJDD easement should be researched and obtained if possible.

Sacramento River East Levee Station 1064+50 to 1082+50
There are approximately 0 to 20 feet of easements with 20-feet of visibility. A SSJDD Easement does not exist, however, an easement to SAFCA is present which extends from the waterside levee toe to approximately 0 to 40-feet landward of the landside levee toe. There is no intent to acquire additional rights-of-way for this reach.

Sacramento River East Levee Station 1082+50 to 1113+00
There are approximately 10-20 feet of easements with 20-feet of visibility. A SSJDD Easement exists under the levee, extending from the floodwall approximately 60 feet landward. There is no intent to acquire additional rights-of-way for this reach.

Sacramento River East Levee Station 1113+00 to 1129+00
There is approximately less than 10-feet of easement with 20-feet of visibility. A combination of SSJDD and SAFCA Easements exist under the levee footprint extending under the crest to the landside levee toe. There is no intent to acquire additional rights-of-way for this reach.

Sacramento River East Levee Station 1129+00 to 1161+50
This levee segment is immediately adjacent to Caltrans and City of Sacramento property, Interstate 5, with a property line that begins near the landside levee crest. There is no right of way present, however, there is 20-feet of visibility at the landside toe. A SSJDD Easement does not exist, but a SAFCA American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 13
easement is present approximately 70-feet wide extending under the levee crest and landside levee slope. Downstream of Station 1148+00, the SAFCA easement widens approximately 50-feet waterward from the levee crest. Additionally, a quarterly coordination occurs between the City of Sacramento and Caltrans to allow Caltrans to perform vegetation, rodent abatement, and other O&M tasks within their right of way on the levee slope and landside area to allow for visibility beginning near Station 1144+50 extending downstream to Station 1218+50. There is no intent to acquire additional rights-of-way for this reach.

Sacramento River East Levee Station 1161+50 to 1199+00
This levee segment is immediately adjacent to City property and Interstate 5. There is no right of way present, however, there is 20-feet of visibility at the landside toe. A SSJDD Easement exists under the levee footprint and a SAFCA easement is present waterward of the SSJDD easement extending down the waterside slope 70 to 250-feet. Additionally, a quarterly coordination occurs between the City of Sacramento and Caltrans to allow Caltrans to perform vegetation, rodent abatement, and other O&M tasks within their right of way on the levee slope and landside area to allow for visibility beginning near Station 1144+50 extending downstream to Station 1218+50. There is no intent to acquire additional rights-of-way for this reach.

Sacramento River East Levee Station 1199+00 to 1218+50
The landside toe ROW is not present, but there is approximately 20-feet of easement present with visibility. A SSJDD Easement does not exist, but a SAFCA easement is present approximately 100 to 200- feet wide extending under the levee crest and waterside levee slope. Additionally, a quarterly coordination occurs between the City of Sacramento and Caltrans to allow Caltrans to perform vegetation, rodent abatement, and other O&M tasks within their right of way on the levee slope and landside area to allow for visibility beginning near Station 1144+50 extending downstream to Station 1218+50. There is no intent to acquire additional rights-of-way for this reach.

Sacramento River East Levee Station 1218+50 to 1249+50
The landside toe ROW is not present, but there is an existing easement present with 20-feet of visibility.

A SSJDD Easement is present that extends from the waterside levee toe to approximately 200-feet landward of the levee across I-5. There is no intent to acquire additional rights-of-way for this reach.

Sacramento River East Levee Station 1249+50 to 1256+50
This levee segment is adjacent to high density housing. The landside toe ROW is not present, but there is 20-feet of visibility. An SSJDD permit is present which extends up to 20-feet landward of the levee toe to approximately 50-feet waterward of the waterside levee toe. There is no intent to acquire additional rights-of-way for this reach. However, a City Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

Sacramento River East Levee Station 1256+50 to 1309+00
American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 14
The landside toe ROW is approximately 10 to 20-feet with heavy vegetation impeding visibility.

Vegetation must be removed. A SSJDD Easement is present that extends 10 to 20-feet landward of the levee extending approximately 50 to 300-feet waterward of the levee. There is no intent to acquire additional rights-of-way for this reach. However, a City Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

Sacramento River East Levee Station 1309+00 to 1322+20
The landside toe ROW is approximately 0-feet with limited visibility to approximate Station 1316+00 at which point Riverside Boulevard abuts the levee. A SSJDD Easement is not present, however, SAFCA has an easement or fee title property extending beneath the levee footprint and various additional distances landward and waterward. There is no intent to acquire additional rights-of-way for this reach.

Sacramento River East Levee Station 1322+20 to 1352+00
This levee segment is adjacent to Riverside Boulevard, bordering high density housing and a school, which provide at least 20-feet of visibility. A SSJDD Easement is present that extends under the levee footprint. There is no intent to acquire additional rights-of-way for this reach.

Sacramento River East Levee Station 1352+00 to 1360+00
This levee segment is adjacent to residential properties. The landside toe ROW is approximately 10-20- feet with limited visibility. A SSJDD Easement is present that extends beneath the levee footprint.

There is no intent to acquire additional rights-of-way for this reach. However, a City Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

Sacramento River East Levee Station 1360+00 to 1396+50
This levee segment is adjacent to residential properties. The landside toe ROW is less than 10-feet with limited visibility. A SSJDD Easement is present that extends beneath the levee footprint. There is no intent to acquire additional rights-of-way for this reach. However, a City Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

Sacramento River East Levee Station 1396+50 to 1408+00
The landside toe ROW is approximately 0-feet with 20-feet of visibility. A SSJDD Easement is present that extends beneath the levee footprint. There is no intent to acquire additional rights-of-way for this reach. However, a City Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

Sacramento River East Levee Station 1408+00 to 1770+10
This levee segment is adjacent to residential properties with property boundaries extending across the levee prism up to Station 1448+00 and residential properties adjacent to the levee toe. The landside toe American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 15
ROW varies and there is limited amount of visibility. An SSJDD Easement and other SAFCA easement generally present under the levee crest extending up to 20-feet landward and 100-feet waterward. The following segments do not include an SSJDD easement that extends to the landside toe:
• Station 1408+00 to 1418+00
• Station 1446+60 to 1448+00
• Station 1461+00 to 1465+20
• Station 1468+00 to 1469+00
• Station 1476+80 to 1482+50
• Station 1491+80 to 1499+30
• Station 1501+40 to 1570+30
• Station 1568+00 to 1573+00
• Station 1579+50 to 1595+20
• Station 1609+90 to 1618+30
• Station 1634+20 to 1646+00
• Station 1655+00 to 1670+50
• Station 1676+00 to 1724+50
• Station 1732+00 to 1766+50
The above list of levee segments should be reviewed and an SSJDD or SAFCA easement obtained.

Additionally, a City Ordinance should be developed to require properties adjacent to or across levees to trim vegetation to allow for visibility a minimum of 20-feet from the landside levee toe.

SUMMARY
The City and County should prepare a Right-of-Way Implementation Plan at least 1-year from adopting the American River South Levee System’s Urban Levee Design Criteria Engineer’s Report, to be shared with SAFCA, City of Sacramento, Sacramento County, MA9, and ARFCD. A yearly status meeting is recommended in order to check progress toward completion. At a minimum, this Implementation Plan should include the following:
 The steps necessary to acquire the ROW
 A map that reflects the phases and timing of implementation o Areas that will be acquired as fee title
o Areas that will be acquired as a permanent flood easement o Areas that will have some form of an agreement that will be enforceable o Areas that will be covered through an ordinance or zoning code that is enforceable.

The following table (Table 1) lists future ROW efforts that should be performed to meet with ULDC, and which comply with the City of Sacramento and Sacramento County land use plans.

American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 16
Table 1. Future Right-of-Way Actions to Meet ULDC
Levee
Segment Stationing Recommended Action Jurisdiction
American River South Levee
ARSL 1000+00 to 1009+50
Acquire easement or create ordinance to provide
visibility. City
ARSL 1014+50 to 1099+00 Acquire easement or create ordinance to provide visibility. City
ARSL 1102+00 to 1109+50 Acquire easement. City
ARSL
1141+50 to 1194+00
Acquire easement between Stations 1141+50 to
1150+80 and Stations 1158+00 to 1167+00. City
ARSL
1198+00 to 1203+00
Review City property to acquire flood control
easement. City
ARSL 1205+50 to 1242+00 Create enforceable ordinance to provide visibility. City ARSL
1242+00 to 1293+00
Review City property to acquire flood control
easement and create enforceable ordinance to
provide visibility.

City
ARSL
1293+00 to 1320+00
Assist with reviewing and enforcing property
boundaries and encroachments within the flood
control easement. Create enforceable ordinance to
provide visibility.

City
ARSL 1492+50 to 1509+00 Create ordinance to provide visibility. County ARSL 1509+00 to 1512+20 Create ordinance to provide visibility. County ARSL 1512+20 to 1516+00 Create ordinance to provide visibility. County ARSL 1516+00 to 1526+20 Create ordinance to provide visibility. County ARSL 1526+20 to 1555+50 Create ordinance to provide visibility. County ARSL 1591+00 to 1595+50 Create ordinance to provide visibility. County ARSL 1595+50 to 1635+50 Create ordinance to provide visibility. County Sacramento River East Levee
SREL 1000+00 to 1019+00 Research missing SSJDD easement and obtain easement.

City
SREL 1019+00 to 1039+00 Research missing SSJDD easement and obtain easement.

City
SREL 1039+00 to 1039+50 Research missing SSJDD easement and obtain easement.

City
SREL 1039+50 to 1060+00 Research missing SSJDD easement and obtain easement.

City
SREL 1060+00 to 1061+00 Research missing SSJDD easement and obtain easement.

City
SREL 1061+00 to 1064+50 Research missing SSJDD easement and obtain easement.

City
SREL 1249+50 to 1256+50 Create ordinance to provide visibility. City American River South Levee System April 2025
Right-of-Way Plan Recommendations Page 17
Levee
Segment Stationing Recommended Action Jurisdiction
SREL 1256+50 to 1309+00 Create ordinance to provide visibility. City SREL 1352+00 to 1360+00 Create ordinance to provide visibility. City SREL 1360+00 to 1396+50 Create ordinance to provide visibility. City SREL 1396+50 to 1408+00 Create ordinance to provide visibility. City SREL
1408+00 to 1770+10
Research missing SSJDD easement and obtain
easement and create ordinance to provide visibility
for:
• Station 1408+00 to 1418+00
• Station 1446+60 to 1448+00
• Station 1461+00 to 1465+20
• Station 1468+00 to 1469+00
• Station 1476+80 to 1482+50
• Station 1491+80 to 1499+30
• Station 1501+40 to 1570+30
• Station 1568+00 to 1573+00
• Station 1579+50 to 1595+20
• Station 1609+90 to 1618+30
• Station 1634+20 to 1646+00
• Station 1655+00 to 1670+50
• Station 1676+00 to 1724+50
• Station 1732+00 to 1766+50
City
Appendix J2.

American River South ULDC
Encroachment
Remediation Plan - MBK
Engineers
Water Resources Flood Control Water Rights
WALTER BOUREZ, III, P.E. FOUNDERS:

DON TRIEU, P.E.

DARREN CORDOVA, P.E. ANGUS NORMAN MURRAY
NATHAN HERSHEY, P.E., P.L.S. 1913-1985
LEE G. BERGFELD, P.E. JOSEPH I. BURNS
BEN TUSTISON, P.E. 1926-2021
THOMAS ENGLER, P.E., CFM DONALD E. KIENLEN
MICHAEL MONCRIEF, P.E. 1930-2023

NICOLE ORTEGA-JEWELL, PMP
KYLE KNUTSON, P.E.

ANNE WILLIAMS, P.E.

PATRICK HO, P.E.

M E M O R A N D U M
DATE: April 1, 2025
PREPARED BY: Rebecca Money, PE
FOR: SAFCA Encroachment
SUBJECT: American River South Levee System Framework for Encroachment Remediation Plan
Introduction and Purpose
An evaluation of encroachments present along the American River South Levee System was performed by Mead & Hunt and MBK Engineers (MBK) in 2025, as a requirement to meet California Department of Water Resources’ (DWR) Urban Levee Design Criteria (ULDC) (DWR, 2012); and to make an Urban Level of Flood Protection (ULOP) Finding that the Sacramento Area Flood Control Agency (SAFCA) levees provide protection against a flood that has a 1-in-200 chance of occurring in any given year. The encroachment evaluation follows requirements set forth in ULDC Section 7.12, Encroachments (Excluding Penetrations, Closure Structures, and Levee Vegetation, which are covered under separate cover if applicable).

MBK prepared a memorandum entitled “SAFCA ULDC Certification Encroachment Evaluation Rationale”, dated September 2024. This memorandum contains the background and methodology used to provide each encroachment with a hazard ranking. This document is included in Appendix A.

Evaluation
Mead & Hunt (2025) evaluated and provided a hazard ranking for each of the encroachments along the American River South Levee System, with input from MBK. This evaluation identified there were no high hazard encroachments present along the American River South Levee System. The evaluation identified all encroachments as either moderate or low hazards, as defined in Table 1 and summarized in Appendix B.

ARS Basin April 1, 2025
Framework for Encroachment Remediation Plan Page 2
Table 1. Hazard Category Definitions and Corresponding Actions Hazard Category Definition Action
High Hazard Imminent threat to integrity of the levee
Immediate remediation
required for levee certification
Moderate Hazard
Potential for threat to integrity of levee
in future; impedes operation and
maintenance
Hazard shall be remediated
within 3-5 years, no impact to
levee certification
Low Hazard
Encroachment does not pose a hazard
to the O&M procedures, flood fighting,
or structural integrity of the levee, but is
not permitted and/or corrective action
is required to comply with Title 23.

Hazard shall be remediated
prior to the next levee
certification (10-20 years)
For a ULDC Finding, an evaluation of encroachments within a levee embankment and any adjacent flood control easement(s) is required to meet the following objectives:

1. Determine the permit status of the encroachments.

2. The encroachments must comply with California Code of Regulations Title 23.

3. The encroachment does not adversely impact the structural integrity of the levee during high-water conditions.

4. The encroachment does not adversely affect or impede Local Maintaining Agency (LMA) activities and/or protocol to properly operate and maintain the levee at all times, and to perform the necessary flood fighting techniques during high-water conditions.

This plan framework below outlines next steps that shall be taken to remediate these encroachments.

To fulfill the plan requirements, a detailed list of the encroachments and a timeframe to address the objectives above will need to be added.

Remediation Plan
Coordination between the land use agencies, the LMAs, and the Central Valley Flood Protection Board (CVFPB) will be necessary to meet the Plan’s objectives for remediating the hazardous and noncompliant encroachments before the next recertification process to the greatest extent practicable. The following steps outline a process to meet these objectives:

Step 1: This Plan shall be adopted by the land use agencies (i.e., the City and County) to ensure corrective actions outlined in the steps below are enacted with a prescribed schedule.

ARS Basin April 1, 2025
Framework for Encroachment Remediation Plan Page 3
Step 2: Determine the permit status of the encroachments. This will include research and communication with CVFPB to locate all available permits. Documentation of each encroachment and the associated permit status shall be tracked and permits collected.

The evaluation shall comply with the ULDC guidelines for encroachments, as follows:
• All existing encroachments are to be authorized by the agency responsible for permitting encroachments along the levee (or floodwall), or removed. • Operation and maintenance of the encroachment shall comply with the conditions required by the approved permit application.

The permit status of encroachments will directly inform the land use agencies and LMA’s whether certain encroachments shall be considered as Moderate Hazard or Low Hazard and the methods and resources in bringing the encroachments into compliance. A target time frame to complete this is 3-to-6 months from adoption of the plan.

Step 3: Confirm the encroachments comply with California Code of Regulations Title 23. This task will involve reviewing the permit documentation, including design and construction details. i. The review should ensure the encroachments do not adversely impact the structural integrity of the levee during high-water conditions.
ii. The review should confirm the encroachments do not adversely affect or impede LMA activities and/or protocol to properly operate and maintain the levee at all times, and to perform the necessary flood fighting techniques during high-water conditions.
iii. A target time frame to complete this is substantial completion within 6-to-12 months after completion of Step 2.

Step 4: For all encroachments missing a CVFPB permit and/or not in compliance with Title 23, identified in Steps 2 and 3, the land use agency will reach out to CVFPB and request corrective actions be taken. The corrective action will require:
• Working with CVFPB on items such as: providing guidance to property owners regarding submitting encroachment permit applications to the CVFPB. • Removal, repair, and/or relocation of the encroachment. • Establishing easement boundaries to mitigate future installations of unpermitted encroachments.
• Creating a timeline for the identified encroachments to come into compliance.

A schedule will be developed as part of this step in coordination with the tracking lists of encroachments identified in Steps 2 and 3 that require future remediation. These requests should be made within 1 year of completion of Step 3.

As outlined in ULDC: “To the extent allowable by law, this plan needs to address eventual removal or permitting of all such encroachments. In some cases, permits may need to provide for access by qualified officials. The city or county must work with the levee maintaining agency and the entity ARS Basin April 1, 2025
Framework for Encroachment Remediation Plan Page 4
responsible for issuing encroachment permits to establish, document, and publicize a realistic target schedule for implementation of this plan. An example target schedule would be to remove or permit 50 percent of the currently noncompliant encroachments within 5 years and to address the remaining 50 percent in the subsequent 5 years.”
This process may be lengthy to complete depending on the quantity and severity of the compliance issues. A ranking of priority shall be made to manage the remediation of encroachments (i.e., worst first) at which time a target schedule to address unpermitted and non-compliant encroachments shall be developed.

Step 5: The prepared schedule and tracking list shall be revisited and updated by the Land Use Agency at a minimum of every 5 years, with updates attached to the ULDC Engineer’s Report.

Closing
The encroachment remediation plan is a requirement of ULDC Section 7.12 that is needed to meet ULDC as part of SAFCA’s levee certification. The conclusions from the ULDC evaluation are necessary for the Land Use Agency to make an ULOP Finding that the levee system provides protection against a flood that has a 1-in-200 chance of occurring in any given year.

The Land Use Agency shall take this framework and create an Encroachment Remediation Implementation Plan which shall be adopted, followed, and updated on a 5-year basis.

Appendix
Appendix A – SAFCA ULDC Certification Encroachment Evaluation Rationale (2024) Appendix B – Figures and Tables from Mead & Hunt (2025)

Water Resources  Flood Control  Water Rights
WALTER BOUREZ, III, P.E. FOUNDERS:

DON TRIEU, P.E.

DARREN CORDOVA, P.E. ANGUS NORMAN MURRAY
NATHAN HERSHEY, P.E., P.L.S. 1913-1985
LEE G. BERGFELD, P.E. JOSEPH I. BURNS
BEN TUSTISON, P.E. 1926-2021
THOMAS ENGLER, P.E., CFM DONALD E. KIENLEN, P.E.

MICHAEL MONCRIEF, P.E. 1930-2023

NICOLE ORTEGA-JEWELL, PMP
KYLE KNUTSON, P.E.

ANNE WILLIAMS, P.E.

M E M O R A N D U M
DATE: September 27, 2024
PREPARED BY: Rebecca Money, PE, GE
REVIEWED BY: Tom Engler, PE
SUBJECT: SAFCA ULDC Certification Encroachment Evaluation Rationale Introduction and Purpose
An evaluation of encroachments is being completed by Mead & Hunt and MBK Engineers (MBK), collectively referred to as the Certification Team, to support the Sacramento Area Flood Control Agency’s (SAFCA) process to meet the California Department of Water Resources’ (DWR) Urban Levee Design Criteria (ULDC) (DWR, 2012); and to make an Urban Level of Flood Protection (ULOP) Finding that SAFCA levees provide protection against a flood that has a 1-in-200 chance of occurring in any given year. The encroachment evaluation follows requirements set forth in ULDC Section 7.12, Encroachments (Excluding Penetrations, Closure Structures, and Levee Vegetation). This memorandum describes the methodology that will be applied to the evaluation of encroachments.

Encroachments in the following SAFCA levee systems are included in the evaluation:

1. Natomas Basin: Sacramento River East Levee, Natomas Cross Canal South Levee, Pleasant Grove Creek Canal West Levee, Natomas East Main Drainage Canal West Levee, and American River North Levee

2. Dry Creek Basin: Dry Creek North Levee

3. Robla-Arcade Creek Basin: Robla Creek South Levee, Natomas East Main Drainage Canal East Levee, and Arcade Creek North Levee

4. American River North Basin: Arcade Creek South Levee, Natomas East Main Drainage Canal East Levee, and American River North Levee

5. American River South Basin: American River South Levee, Sacramento River East Levee, and Beach Lake/Morrison Creek North Levee
MBK Engineers September 27, 2024
SAFCA ULDC Certification Encroachment Evaluation Rationale Page 2 For a ULDC Finding, an evaluation of encroachments within a levee embankment and any adjacent flood control easement(s) is required to meet the following objectives:

1. Determine the permit status of the encroachments.

2. Ensure the encroachments comply with California Code of Regulations Title 23.

3. Ensure the encroachment does not adversely impact the structural integrity of the levee during high-water conditions.

4. Ensure the encroachment does not adversely affect or impede Local Maintaining Agency (LMA) activities and/or protocol to properly operate and maintain the levee at all times; and to perform the necessary flood fighting techniques during high-water conditions.

Background
Encroachments are defined in the ULDC as any obstruction or physical intrusion by construction of works or devices, planting or removal of vegetation, or by whatever means for any purpose, into any of the following:
• Any flood control project works
• The waterway area of the project
• The area covered by an adopted plan of flood control
• Any area outside the above limits, if the encroachment could affect any of the above (Title 23 CCE, Division 1, Chapter 1, Article 2, Section 4)
Encroachments on levee embankments require permits issued by the Central Valley Flood Protection Board (CVFPB or Board) and the United States Army Corps of Engineers (USACE). It is common to discover several encroachments along the levees that are either unpermitted or which do not adhere to the original intent and/or conditions of the permit. Over time, very few corrective actions have been taken by enforcement agencies regarding these unpermitted and non-compliant encroachments due to a lack of resources and limited legal recourse.

Encroachments within the flood control right-of-way in the Sacramento area are tracked by DWR, USACE, and LMAs. Regular review of these encroachments is necessary for levee certification, in order to ensure compliance with Title 23, and to determine whether the encroachments adversely impact levee integrity and/or operation and maintenance (O&M) activities.

Methodology
The following methodology was developed to evaluate existing encroachments in SAFCA levee systems and to form the basis for the Finding:
• Collect essential information for each existing encroachment • Evaluate the encroachments based on their impact to levee integrity and/or O&M MBK Engineers September 27, 2024
SAFCA ULDC Certification Encroachment Evaluation Rationale Page 3 • Prepare an Encroachment Remediation Plan to address non-compliant and potentially hazardous encroachments on levee embankments
Step 1: Data Collection
Encroachments within the levee embankment and existing/future right-of-way (i.e., up to 20 feet from levee toe) shall be field verified for each levee system using GPS equipment and highresolution cameras. At a minimum, the types and locations of the encroachments will be recorded in a database that can be summarized for evaluation. Additional details for the encroachments can be captured and recorded during the data collection process, as necessary to support corrective action.

Step 2: Encroachment Data Evaluation
MBK will review and evaluate the existing encroachments in accordance with the following key procedures as outlined in ULDC Section 7.12 (in italics):
i. Initial Assessment
• The civil engineer needs to assess existing encroachments and render an opinion as to their impact on the reliable performance of the levee/floodwall for the full range of loading up to the HTOL1
.
• The opinion needs to consider all encroachments within the channel, on the levee, and within the landside right-of-way identified in Section 7.11, irrespective of whether the property rights have been acquired.

For each levee system, the Certification Team will evaluate specific types of encroachments that may affect levee performance during high-water conditions. MBK will have engaged with the associated Local Maintaining Agencies to discuss encroachments that hamper O&M activities. The database inventory of encroachments, and the analysis tools available in the database, will inform the initial assessment of existing encroachments that may potentially cause severe damage to the levee or inhibit O&M monitoring or flood fighting.
ii. Engineering Judgment
• Due to the limitations of analytical tools for assessing the impacts of encroachments, the civil engineer needs to exercise sound engineering judgment in rendering this opinion. • The civil engineer shall consider the following when rendering this opinion: type, age, condition, performance history of the encroachment, and impacts on the levee/floodwall structural integrity, impacts on the hydraulic effect on the channel and floodway, and impacts on the operation and maintenance of the levee/floodwall.

In cases where the existing encroachment is outside the levee minimum geometry and visibility right-of-way, sound engineering judgment may replace the detailed geotechnical and hydraulic analyses.
1 Hydraulic Top of Levee
MBK Engineers September 27, 2024
SAFCA ULDC Certification Encroachment Evaluation Rationale Page 4 Each levee system will undergo a screening process to properly exercise the appropriate level of engineering judgment that shall include, but not be limited to:
• Identifying common encroachment types that exist
• The proximity of similar encroachments (i.e., common among adjacent properties) • Review of existing geotechnical evaluations for slope stability and seepage mitigation • Review existing levee geometry (i.e., standard vs. wide levee) iii. Hazard Assessment
• A hazard assessment needs to be performed for each existing encroachment, whether permitted or not. Encroachments with a potential to be a high hazard need to have a full engineering evaluation, to demonstrate that the hazard is acceptable, or be removed or modified.
• All existing encroachments considered a high hazard are to be removed or modified to restore the reliability of the levee/floodwall. Encroachment removal or modification shall be performed under the direction of a civil engineer and should address, at a minimum, seepage and slope stability issues and the structural integrity of the levee. In addition, the encroachment removal or modification must not significantly diminish hydraulic capacity of the channel or hinder operations and maintenance. A proposed removal or modification plan is to be approved by the levee maintaining agency and the Board (for levees regulated by the Board).

Based on input from others and on MBK’s experience, the following encroachment types (in alphabetical order) may potentially be identified as hazardous and will require a more focused review. The following descriptions include a brief statement of the impact to the levee:
• Bike trail alignment – obstruction for O&M
• Bridges – obstruction for O&M, scour around abutment
• Gates across levees – key availability, opening of gate (standard operating procedure(s) [SOP]), alternative access routes
• Landscaping on the levee slope and at the landside toe – also covered under ULDC 7.16 Levee Vegetation (impedes visibility for flood fighting) • Poles – obstruction for O&M, penetration of blanket, and seepage exit point • Pressurized pipes, including irrigation piping, within the levee slope and parallel to landside toe – obstruction for O&M, potential to rupture below grade, and scour embankment • Retaining walls – stability of levee, impedes visibility for flood fighting, obstruction for O&M, engineering analysis
• Stairways – obstruction for O&M, stability of levee
MBK Engineers September 27, 2024
SAFCA ULDC Certification Encroachment Evaluation Rationale Page 5 • Structures – excluding residential (impeded visibility for flood fighting) To execute a consistent methodology in evaluating the encroachments for all levee systems, a series of flow charts, one chart for each of the aforementioned encroachment types, has been prepared and is included as Attachment 1. These flow charts include the rationale followed to assign a hazard category to each encroachment, and is based on the type and condition of each encroachment, thus providing an overall evaluation of the encroachments as required to meet the Urban Level of Flood Protection. The hazard categories are defined as follows:

Table 1. Hazard Category Definitions and Corresponding Actions Hazard Category Definition Action
High Hazard Imminent threat to integrity of the
levee.

Immediate remediation
required for levee
certification.

Moderate Hazard
Potential for threat to integrity of
levee in future; impedes operation
and maintenance.

Hazard shall be
remediated within 3-5
years, no impact to
levee certification.

Low Hazard
Encroachment does not pose a
hazard to the O&M procedures,
flood fighting, or structural
integrity of the levee, but is not
permitted and/or corrective action
is required to comply with Title 23.

Hazard shall be
remediated prior to the
next levee certification
(10-20 years).

High Hazard Encroachments are an immediate and imminent threat to levee integrity, and therefore would preclude ULDC certification until corrective actions take place. An engineering evaluation shall be performed to assess the need for removal, remediation, or leaving in place. The engineering evaluation shall include a review of “seepage and slope stability issues and the structural integrity of the levee” (ULDC Section 7.12, DWR, 2012). An example of a high hazard encroachment includes a failing retaining wall within the embankment zone of a standard size levee.

Moderate Hazard Encroachments may potentially have an adverse impact on levee integrity while significantly impeding LMAs from operating, maintaining, or flood fighting the levee. Engineering judgment and feedback from the LMA will inform whether an encroachment is moderately hazardous and if corrective actions are required in 5 years or less from when the ULDC Finding is made. Examples of a moderate hazard encroachments include non-compliant dense vegetation and sprinkler systems on the levee slope.

Low Hazard Encroachments are determined to not meet ULDC if they either (1) have not been permitted or (2) interfere with operation, maintenance, or flood fight capability. Typically, unpermitted encroachments on the levee are installed by the adjacent homeowners as an extended MBK Engineers September 27, 2024
SAFCA ULDC Certification Encroachment Evaluation Rationale Page 6 feature of their property onto the levee regardless of prescriptive rights or underlying property ownership.
iv. Status of Encroachment Permits
The encroachment evaluation includes an overview of the permit status of all known and visible encroachments for each levee system. Permitted encroachments shall be Title 23 compliant to ensure levee integrity and operations are not affected. Permitted encroachments signify that the CVFPB and USACE have provided the necessary reviews to allow encroachments to be constructed and installed within the levee embankment and adjacent rights-of-way. The evaluation shall comply with the ULDC guidelines for encroachments, as follows:
• All existing encroachments are to be authorized by the agency responsible for permitting encroachments along the levee (or floodwall), or removed. • Operation and maintenance of the encroachment shall comply with the conditions required by the approved permit application.

The permit status of encroachments will directly inform the Certification Team whether certain encroachments shall be considered as Moderate Hazard or Low Hazard and the methods in bringing the encroachments into compliance.

Step 3: Preparing the Encroachment Remediation Plan
For Moderate and Low Hazard encroachments, an Encroachment Remediation Plan (Plan) shall be prepared that will outline the necessary actions to resolve and/or remediate individual encroachments. The Plan shall include steps to take corrective actions based on the severity of the encroachments, such as providing guidance to property owners regarding submitting encroachment permit applications to the CVFPB, removal and/or relocation of the encroachment, establishing easement boundaries to mitigate future installations of unpermitted encroachments, and creating a timeline for the identified encroachments to come into compliance. In order to achieve the Plan’s objectives, the Plan shall be adopted by the land use agencies (i.e., the City and County) to ensure corrective actions are enacted with a prescribed schedule. Coordination between the land use agencies, the LMAs, and the CVFPB will be necessary to meet the Plan’s objectives for remediating the hazardous encroachments before the next recertification process to the greatest extent practicable.

Conclusion
A list of encroachments will be provided in supporting documentation to the ULDC Engineer’s Report, prepared by the Certification Team. If a Plan is required, the Plan will be an attachment to the ULDC Engineer’s Report. High Hazard encroachments will be included and discussed in the ULDC Engineer’s Report for the purpose of tracking and documenting the plan.

Attachments: Attachment 1 – Encroachment Assessment Flow Charts (9 pages) SAFCA ULDC Certification Encroachment Evaluation Rationale Attachment 1.

Encroachment Assessment Flow Charts
Encroachment Analysis
Yes
Landscaping
Is landscaping
dense and does
it prevent visual
inspection?
(T23.S131.f7)
No
Unacceptable (Category 1A*)
Is groundcover
woody or
greater than 12”
in height?
(T23.S131.f8)
Yes
No
Unacceptable (Category 1A)
* Category 1A – Imminent threat to integrity of the levee; Must be remediated before levee certification.

Category 1B – Lesser threat to integrity of the levee; Impedes operation and maintenance; Must be fixed or removed within three years of levee certification.

Category 2 – Doesn’t comply with ULDC; Must be fixed or removed within ten years of levee certification.

Acceptable
Is irrigation piping
present?
No
Yes Yes
See Page 3 for Irrigation
No
Located in
levee prism?
No
Acceptable Retaining Walls
Is wall within
or adjacent
to levee
maintenance
zone
Unacceptable
(Category 1A)
Is wall height
greater than 3
feet?
(T23.S125.a1)
Yes Yes
Does wall have
drainage features
to intercept seepage and
prevent migration?
(T23.S125.a3)
Yes
Does wall
project above
levee by more
than one foot?
Yes
Are access
and visibility
for seepage and stability
inspection
impaired?
Unacceptable
(Category 1A)
No
Acceptable
No
Unacceptable
(Category 2)
No
No
Yes
Unacceptable
(Category 2)
Designed by
licensed civil
engineer and
serviceable?
(T23.S125.a1;
CBC S1807)
Yes
Is construction material
reinforced concrete,
concrete gravity
section or equivalent?
(T23.S125.a2)
No
Is wall height
greater than 3
feet?
(T23.S125.a1)
Acceptable
Acceptable
Is wall
taller than
18 inches?
Unacceptable
(Category 1B)
No
No
Yes
Yes No Yes
Designed by
licensed civil
engineer and
serviceable?
(T23.S125.a1;
CBC S1807)
Unacceptable
(Category 2)
No
Acceptable
Yes
Unacceptable
(Category 1A)
No
Yes
* Category 1A – Imminent threat to integrity of the levee; Must be remediated before levee certification.

Category 1B – Lesser threat to integrity of the levee; Impedes operation and maintenance; Must be fixed or removed within three years of levee certification.

Category 2 – Doesn’t comply with ULDC; Must be fixed or removed within ten years of levee certification.

Encroachment Analysis
Located in
levee prism?
Yes
No
Irrigation
Irrigation of vegetation
on levee slopes
conforms with Title
23?(T23.S131.j1-6, 8)
No
Yes
Acceptable
Does it have a
shutoff control valve within
10 feet of toe accessible to
maintenance or flood fight
personnel?
(T23.S131.j7)
Yes
No
Unacceptable
(Category 1B)
Acceptable Acceptable
Encroachment Analysis
Are steps
constructed of material
resistant to deterioration1?
(T23.S137.c1)
No
Stairways
Yes
Yes
Unacceptable
(Category 1B)
Does excavation
in slope exceed
12 inches in
depth?
(T23.S137.c3)
No
No Are steps flush with levee slope and
properly anchored to
prevent movement?
(T23.S137.c2,c4)
Unacceptable
(Category 1B) Unacceptable (Category 1B)

1. Including, but not limited to, concrete, masonry, stone, pressure treated lumber, iron, and steel.

Yes Yes
No
If there is a hand
railing, is it
designed to give
way with debris
loading on
waterside?
(T23.S137.c5,
c6, c7)
Acceptable
Yes
Acceptable
Are there elevated
access ways that
conform with Title
23?
(T23.S137.d1-7)
No
Unacceptable
(Category 1B)
Encroachment Analysis
Is structure
on levee or
within 10
feet of toe?
Yes
No
Structures (excludes residential)1
Acceptable
Is structure
on slope?
Yes
No
Unacceptable
(Category 2)
Unacceptable
(Category 1B)

1. Structures include liquid storage tanks, water retention basins, steps, elevated access ways, mail boxes, signage, grazing livestock, and storage of equipment or materials on levee slope.

Encroachment Analysis
Can gates
remain open
during high
water patrols?
(T23.S127.b4)
No
Gates across levee
Yes
No
Acceptable
Is maintenance
access
impaired?
Yes
No
Is alternative
patrol access
available?
Acceptable
Yes
Unacceptable
(Category 1A)
Unacceptable
(Category 2)
Encroachment Analysis
Including guy
wires, does
pole impede
maintenance
access?
No
Yes
Does fill comply
with Title 23
requirements?
Unacceptable
(Category 2)
No
Unacceptable
(Category 2)
Acceptable
Yes
Poles and Overhead Utilities (T23, S123)
Does it cross over the levee?
No
Yes
Does it meet minimum clearance in T23.S123.b6?
Yes
No
Unacceptable
(Category 2)
Acceptable
Unknown
Any past performanceissues?
No
Yes
Unacceptable
(Category 2)
Acceptable
Encroachment Analysis
Is
maintenance
access
impaired?
Yes
Bridges (T23, S128)
No
No
Acceptable
Is waterside
slope revetted? No
Yes
Yes Any
depressions in
levee crown?
Unacceptable
(Category 1B)
Unacceptable
(Category 2)
Unacceptable
(Category 1B)
Unacceptable
(Category 2)
Encroachment Analysis
Bike Trail (T23, S132)
Yes
Acceptable
No Is surfacing flush with shoulder
material to provide
uniform patrol
road?
Yes
No
Is
maintenance
access
impaired?
Unacceptable
(Category 1B)
Unacceptable
(Category 2)
Yes
Are there excessive potholes, cracking, or surface distress? Unacceptable
(Category 1B)
No

EXHIBIT 3A1. Table Summary of Encroachments (non-linear) American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4 American River South Levee AR04 1000+11 Landscaping Trees Sac Housing and Redevelopment Agency 1795 American River South Levee AR04 1000+50 Landscaping Vegetation Blunk Assoc. Architects, Days Inn Motel3805 American River South Levee AR04 1001+22 Access Gate4367 American River South Levee AR04 1001+23 Gate Access gate3222 American River South Levee AR04 1002+73 Other Electrical Equipment4366 American River South Levee AR04 1007+54 Pole Call box3226 American River South Levee AR04 1008+19 Valve Positive Closure Vault1891 American River South Levee AR04 1008+26 Valve Positive Closure Vault City of Sacramento3221 American River South Levee AR04 1009+09 Pole Utility4365 American River South Levee AR04 1009+52 Gate3446 American River South Levee AR04 1009+80 Bridge1986 American River South Levee AR04 1009+98 Pole Utility1985 American River South Levee AR04 1010+12 Pole Utility1987 American River South Levee AR04 1011+76 Pole4363 American River South Levee AR04 1011+87 Gate Bollard4362 American River South Levee AR04 1011+92 Gate1788 American River South Levee AR04 1012+57 Bridge Road1988 American River South Levee AR04 1013+48 Other Utility U4364 American River South Levee AR04 1014+84 Gate1995 American River South Levee AR04 1015+07 Other1990 American River South Levee AR04 1019+67 Pole Utility1825 American River South Levee AR04 1039+23 Pole SMUD4361 American River South Levee AR04 1042+20 Landscaping Tree1993 American River South Levee AR04 1044+69 Well Monitoring Well1994 American River South Levee AR04 1044+78 Well Monitoring Well1992 American River South Levee AR04 1044+83 Well Monitoring Well4360 American River South Levee AR04 1046+06 Landscaping Tree1911 American River South Levee AR04 1047+93 Pump Station Drainage City of Sacramento1864 American River South Levee AR04 1048+21 Valve Siphon Breaker Vault City of Sacramento1842 American River South Levee AR04 1048+42 Stairway Concrete City of Sacramento4359 American River South Levee AR04 1064+20 Landscaping Trees4358 American River South Levee AR04 1067+22 Landscaping Tree4350 American River South Levee AR04 1071+84 Gate2427 American River South Levee AR04 1072+67 Structure Abandoned1880 American River South Levee AR04 1074+12 Boating Facility Dock1996 American River South Levee AR04 1078+12 Structure Abandoned1998 American River South Levee AR04 1078+38 Well Monitoring Well1997 American River South Levee AR04 1078+44 Well Monitoring Well

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
1999 American River South Levee AR04 1078+50 Well Monitoring Well3445 American River South Levee AR04 1097+42 Landscaping4356 American River South Levee AR04 1098+49 Pole2000 American River South Levee AR04 1098+63 Pole Utility4351 American River South Levee AR04 1098+88 Gate4353 American River South Levee AR04 1098+96 Pole4352 American River South Levee AR04 1099+05 Gate4357 American River South Levee AR04 1099+11 Pole2408 American River South Levee AR04 1099+56 Bridge Road2409 American River South Levee AR04 1099+77 Bridge Railroad2404 American River South Levee AR04 1100+03 Other Traffic Control Box2405 American River South Levee AR04 1100+16 Valve Manhole - Telephone2406 American River South Levee AR04 1100+18 Valve Manhole - Telephone2403 American River South Levee AR04 1100+67 Other Electrical box2407 American River South Levee AR04 1100+83 Bridge Road2400 American River South Levee AR04 1101+34 Other Cal Trans Street2399 American River South Levee AR04 1101+35 Other Traffic Control Box2397 American River South Levee AR04 1101+37 Pole Light2401 American River South Levee AR04 1101+38 Other Abandoned Electrical2398 American River South Levee AR04 1101+39 Other Electrical box1878 American River South Levee AR04 1101+56 Other Temporary Bridge Lord & Bishop, Inc4344 American River South Levee AR04 1102+15 Gate2395 American River South Levee AR04 1102+31 Pole Utility4345 American River South Levee AR04 1102+44 Pole Overhead Utility2394 American River South Levee AR04 1103+94 Pole Utility2393 American River South Levee AR04 1105+85 Pole Utility2390 American River South Levee AR04 1107+86 Pole Utility2388 American River South Levee AR04 1109+88 Pole Utility2387 American River South Levee AR04 1110+08 Pole Utility2389 American River South Levee AR04 1110+31 Pole Utility3444 American River South Levee AR04 1111+25 Bridge Bike Path2384 American River South Levee AR04 1111+90 Pole Utility4343 American River South Levee AR04 1112+49 Gate3443 American River South Levee AR04 1112+59 Access Gate2383 American River South Levee AR04 1113+27 Pole Utility4342 American River South Levee AR04 1116+93 Gate4341 American River South Levee AR04 1117+05 Gate4340 American River South Levee AR04 1117+24 Gate

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
1966 American River South Levee AR04 1118+30 Bridge Pedestrian Sacramento County2377 American River South Levee AR04 1118+30 Pole radio antenna 2379 American River South Levee AR04 1118+30 Bridge Railroad2376 American River South Levee AR04 1121+79 Other Utility Tower2375 American River South Levee AR04 1122+76 Other Utility Tower3442 American River South Levee AR04 1139+28 Access Gate4339 American River South Levee AR04 1139+29 Gate2374 American River South Levee AR04 1141+75 Other Bollard2372 American River South Levee AR04 1142+05 Stairway Concrete Private2368 American River South Levee AR04 1142+19 Other Pump1818 American River South Levee AR04 1142+51 Other Sand Processing Plant Hard Materials Co.2362 American River South Levee AR04 1143+27 Pole Cable attached2358 American River South Levee AR04 1143+99 Other Tank4338 American River South Levee AR04 1146+02 Landscaping Tree2354 American River South Levee AR04 1146+66 Pole Utility2353 American River South Levee AR04 1146+78 Structure Water Tank2350 American River South Levee AR04 1148+99 Pole Utility, Abandoned3441 American River South Levee AR04 1150+90 Access Gate4337 American River South Levee AR04 1150+94 Gate2349 American River South Levee AR04 1151+90 Pole Light2348 American River South Levee AR04 1152+89 Pole Light2347 American River South Levee AR04 1153+89 Pole Light2346 American River South Levee AR04 1154+85 Pole Light2345 American River South Levee AR04 1157+33 Well Monitoring Well2344 American River South Levee AR04 1157+63 Other Control box4335 American River South Levee AR04 1158+06 Gate4336 American River South Levee AR04 1158+18 Gate2410 American River South Levee AR04 1158+31 Other Well2412 American River South Levee AR04 1166+26 Valve Gas2411 American River South Levee AR04 1166+69 Control Structure Gas PG&E?2426 American River South Levee AR04 1166+75 Well Monitoring Well2413 American River South Levee AR04 1167+19 Valve Gas2414 American River South Levee AR04 1168+48 Other DI2425 American River South Levee AR04 1173+97 Well Monitoring Well4333 American River South Levee AR04 1177+49 Other4334 American River South Levee AR04 1177+98 Other2424 American River South Levee AR04 1180+70 Well Monitoring Well2423 American River South Levee AR04 1186+88 Well Monitoring Well

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2416 American River South Levee AR04 1188+22 Other Steel Beams2417 American River South Levee AR04 1188+39 Valve Positive Closure Vault U2421 American River South Levee AR04 1191+79 Well Monitoring Well2420 American River South Levee AR04 1192+04 Well Monitoring Well4327 American River South Levee AR04 1194+07 Gate2165 American River South Levee AR04 1194+76 Bridge Railroad4326 American River South Levee AR04 1195+08 Gate4325 American River South Levee AR04 1195+98 Gate1906 American River South Levee AR04 1197+05 Other Access Ramp City of Sacramento2166 American River South Levee AR04 1197+73 Other Electrical Panel2161 American River South Levee AR04 1202+81 Other Monument3437 American River South Levee AR04 1202+83 Access Gate3440 American River South Levee AR04 1203+73 Other Drainage3438 American River South Levee AR04 1203+88 Bridge4322 American River South Levee AR04 1204+00 Other4323 American River South Levee AR04 1204+91 Other2155 American River South Levee AR04 1204+98 Pole Utility3439 American River South Levee AR04 1205+04 Access Gate2156 American River South Levee AR04 1205+07 Valve SWS SRCSD2157 American River South Levee AR04 1205+11 Well Monitoring Well2158 American River South Levee AR04 1205+27 Pole Utility2159 American River South Levee AR04 1205+29 Other Electrical Equipment4321 American River South Levee AR04 1206+55 Other Structure2154 American River South Levee AR04 1206+64 Pole Utility2153 American River South Levee AR04 1206+98 Other Monument1883 American River South Levee AR04 1207+57 Other Pump3429 American River South Levee AR04 1207+69 Pole2151 American River South Levee AR04 1207+80 Valve Siphon Breaker Vault City of Sacramento2150 American River South Levee AR04 1207+89 Stairway Concrete City of Sacramento2149 American River South Levee AR04 1207+91 Stairway Concrete City of Sacramento1803 American River South Levee AR04 1207+92 Stairway Concrete City of Sacramento2168 American River South Levee AR04 1208+51 Pole Utility2169 American River South Levee AR04 1210+15 Pole Utility1844 American River South Levee AR04 1210+53 Landscaping Trees SAFCA3430 American River South Levee AR04 1210+94 Structure2170 American River South Levee AR04 1210+99 Stairway Pedestrian ramp3431 American River South Levee AR04 1211+54 Structure2171 American River South Levee AR04 1211+62 Pole Utility

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3432 American River South Levee AR04 1211+74 Structure3276 American River South Levee AR04 1211+87 Retaining Wall Krsto Vlahovich2172 American River South Levee AR04 1212+36 Stairway Brick Private3277 American River South Levee AR04 1212+53 Retaining Wall Mr. and Mrs. Kafouros2173 American River South Levee AR04 1213+01 Pole Utility3271 American River South Levee AR04 1213+18 Structure Accessory Richard adn Joan Herr2174 American River South Levee AR04 1214+19 Pole Utility2175 American River South Levee AR04 1215+37 Pole Utility2176 American River South Levee AR04 1215+87 Stairway Wood Private3273 American River South Levee AR04 1216+18 Stairway Abandoned Jason and Marisol Richmond2177 American River South Levee AR04 1216+55 Pole Utility4319 American River South Levee AR04 1216+58 Structure Shed 4320 American River South Levee AR04 1216+58 Other Structure4317 American River South Levee AR04 1216+59 Structure She’d4318 American River South Levee AR04 1216+59 Structure Shed2178 American River South Levee AR04 1216+90 Stairway Concrete Carole Paddleford3433 American River South Levee AR04 1217+10 Structure2179 American River South Levee AR04 1217+65 Pole Utility2193 American River South Levee AR04 1217+69 Stairway Wood Private3278 American River South Levee AR04 1218+51 Fence Michael and Kathleen Crooks2180 American River South Levee AR04 1218+85 Stairway Concrete Private2181 American River South Levee AR04 1218+92 Pole Utility2182 American River South Levee AR04 1220+13 Pole Utility3274 American River South Levee AR04 1220+30 Fence Davis Family Living Trust3112 American River South Levee AR04 1220+59 Stairway Wood Shirley Kammeyer and Charlotte Williams4349 American River South Levee AR04 1220+59 Structure3279 American River South Levee AR04 1220+96 Retaining Wall Jane Pearce and Lauren Rive2183 American River South Levee AR04 1221+32 Pole Utility3280 American River South Levee AR04 1221+62 Retaining Wall Mr. and Mrs. Reeder 2184 American River South Levee AR04 1221+72 Stairway Earthen Private3434 American River South Levee AR04 1221+90 Structure3281 American River South Levee AR04 1222+20 Structure Shed2185 American River South Levee AR04 1222+29 Stairway Stone Private2186 American River South Levee AR04 1222+56 Pole Utility3283 American River South Levee AR04 1222+87 Fence George and Francis Ratcliff3435 American River South Levee AR04 1223+32 Structure2187 American River South Levee AR04 1223+39 Stairway Earthen Private3284 American River South Levee AR04 1223+44 Fence Dsack Family LTD Partnership

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2188 American River South Levee AR04 1223+81 Pole Utility4315 American River South Levee AR04 1223+89 Stairway4314 American River South Levee AR04 1223+92 Landscaping Tree3285 American River South Levee AR04 1224+03 Fence Bret Bowman Nycum2189 American River South Levee AR04 1224+16 Stairway Stone Private2190 American River South Levee AR04 1224+79 Stairway Stone Private2191 American River South Levee AR04 1225+24 Pole Utility3286 American River South Levee AR04 1225+32 Fence Shirley Coffelt1902 American River South Levee AR04 1226+02 Stairway Terraces Shirley Coffelt1867 American River South Levee AR04 1226+74 Landscaping Shirley Kammeyer and Charlotte Williams2192 American River South Levee AR04 1227+03 Pole Utility3287 American River South Levee AR04 1227+23 Stairway Ron and Anna Pascal3288 American River South Levee AR04 1228+00 Landscaping Vegetation Franklin and Betty Marnette2195 American River South Levee AR04 1228+86 Stairway Wood Private2194 American River South Levee AR04 1229+21 Pole Utility2196 American River South Levee AR04 1229+53 Stairway Concrete Private2197 American River South Levee AR04 1229+57 Pole Light2198 American River South Levee AR04 1230+20 Stairway Wood Private2199 American River South Levee AR04 1230+60 Pole Utility3289 American River South Levee AR04 1230+86 Retaining Wall Ian and Rose Day3290 American River South Levee AR04 1231+47 Retaining Wall Mr and Mrs O'Hearn2200 American River South Levee AR04 1231+79 Pole Utility3291 American River South Levee AR04 1232+02 Retaining Wall Molly Weinheimer2201 American River South Levee AR04 1232+42 Stairway Concrete Private2202 American River South Levee AR04 1232+71 Stairway Stone Private2203 American River South Levee AR04 1232+97 Pole Utility2204 American River South Levee AR04 1233+27 Stairway Concrete/Wood Thomas and Katherin Witcher2205 American River South Levee AR04 1233+80 Stairway Brick John Williams2206 American River South Levee AR04 1234+13 Pole Utility2207 American River South Levee AR04 1234+62 Stairway Stone Private2209 American River South Levee AR04 1235+34 Stairway Private2208 American River South Levee AR04 1235+35 Pole Utility2211 American River South Levee AR04 1236+47 Stairway Wood William Vogel2210 American River South Levee AR04 1236+50 Pole Utility3436 American River South Levee AR04 1237+22 Structure2212 American River South Levee AR04 1237+56 Stairway Wood Private2213 American River South Levee AR04 1237+67 Pole Utility2214 American River South Levee AR04 1237+98 Stairway Concrete Private

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2215 American River South Levee AR04 1238+61 Stairway Private2216 American River South Levee AR04 1238+79 Pole Utility2217 American River South Levee AR04 1239+01 Stairway Concrete Private2218 American River South Levee AR04 1239+64 Pole Utility2219 American River South Levee AR04 1239+76 Stairway Earthen Private2220 American River South Levee AR04 1240+53 Pole Utility4312 American River South Levee AR04 1241+00 Pole Bollard3293 American River South Levee AR04 1241+43 Retaining Wall Sally Corbett2221 American River South Levee AR04 1241+70 Pole Utility1854 American River South Levee AR04 1242+14 Valve Siphon Breaker Vault City of Sacramento1875 American River South Levee AR04 1242+15 Pump Station Equipment City of Sacramento1836 American River South Levee AR04 1242+18 Valve City of Sacramento4311 American River South Levee AR04 1242+25 Pole Bollard2225 American River South Levee AR04 1242+34 Other Electrical Equipment City of Sacramento2222 American River South Levee AR04 1242+69 Pole Utility2226 American River South Levee AR04 1244+61 Pole Utility3428 American River South Levee AR04 1245+48 Stairway2227 American River South Levee AR04 1245+54 Pole Utility2228 American River South Levee AR04 1246+87 Stairway Wood R Tupper and Patricia Hull2229 American River South Levee AR04 1246+96 Pole Utility2230 American River South Levee AR04 1248+31 Pole Utility2231 American River South Levee AR04 1248+65 Stairway Concrete Block Mary Schmidt2232 American River South Levee AR04 1249+53 Pole Utility2233 American River South Levee AR04 1249+94 Stairway Wood Private1852 American River South Levee AR04 1250+27 Stairway Wood Christopher and Evelyn Carr2234 American River South Levee AR04 1250+28 Stairway Wood Private2235 American River South Levee AR04 1250+61 Pole Utility2236 American River South Levee AR04 1251+11 Stairway Wood Alexander and Joanne Swedlow2237 American River South Levee AR04 1251+73 Pole Utility3294 American River South Levee AR04 1251+82 Structure Shed Harry Pascual and Susan Landi2238 American River South Levee AR04 1253+01 Pole Utility3295 American River South Levee AR04 1253+09 Retaining Wall William Mateo and Mrs. Marian3426 American River South Levee AR04 1254+13 Stairway2239 American River South Levee AR04 1254+35 Pole Utility2240 American River South Levee AR04 1254+67 Stairway Wood Private3296 American River South Levee AR04 1255+12 Fence Donald and Susan Phenix2241 American River South Levee AR04 1255+39 Pole Utility2242 American River South Levee AR04 1256+26 Stairway Concrete Richard and Anna Johnson

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2243 American River South Levee AR04 1256+50 Pole Utility2245 American River South Levee AR04 1257+52 Stairway Wood Elinor Schiro2244 American River South Levee AR04 1257+58 Pole Utility2247 American River South Levee AR04 1258+47 Stairway Wood Private2246 American River South Levee AR04 1258+69 Pole Utility2248 American River South Levee AR04 1259+12 Stairway Wood Private2249 American River South Levee AR04 1259+83 Pole Utility2250 American River South Levee AR04 1259+99 Stairway Concrete Private2251 American River South Levee AR04 1260+91 Pole Utility2252 American River South Levee AR04 1262+01 Pole Utility2253 American River South Levee AR04 1263+08 Pole Utility2254 American River South Levee AR04 1264+73 Pole Utility2255 American River South Levee AR04 1266+71 Pole Utility3297 American River South Levee AR04 1266+94 Fence2258 American River South Levee AR04 1267+51 Pole Utility2257 American River South Levee AR04 1267+93 Stairway Concrete Private2259 American River South Levee AR04 1268+79 Pole Utility2260 American River South Levee AR04 1270+15 Pole Utility4310 American River South Levee AR04 1270+47 Landscaping Tree2261 American River South Levee AR04 1271+62 Pole Utility2262 American River South Levee AR04 1272+92 Pole Utility2067 American River South Levee AR04 1281+16 Pole Utility2068 American River South Levee AR04 1282+76 Pole Utility4309 American River South Levee AR04 1283+45 Landscaping Tree4308 American River South Levee AR04 1283+99 Landscaping Tree2069 American River South Levee AR04 1284+19 Pole Utility4307 American River South Levee AR04 1285+22 Structure2070 American River South Levee AR04 1285+30 Pole Utility2071 American River South Levee AR04 1286+86 Pole Utility3418 American River South Levee AR04 1287+82 Structure2072 American River South Levee AR04 1288+79 Pole Utility3298 American River South Levee AR04 1289+23 Fence3299 American River South Levee AR04 1290+10 Fence2073 American River South Levee AR04 1290+24 Stairway Wood Private2075 American River South Levee AR04 1290+52 Pole Utility2074 American River South Levee AR04 1290+59 Stairway Concrete Private3300 American River South Levee AR04 1290+90 Fence3301 American River South Levee AR04 1291+60 Fence

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2077 American River South Levee AR04 1291+69 Pole Utility2076 American River South Levee AR04 1291+99 Stairway Private1851 American River South Levee AR04 1292+35 Landscaping Terrace Frank and Amelia Puccinelli2078 American River South Levee AR04 1292+46 Stairway Concrete Private2079 American River South Levee AR04 1292+83 Pole Utility2080 American River South Levee AR04 1293+28 Stairway Concrete Private3302 American River South Levee AR04 1293+28 Fence2081 American River South Levee AR04 1293+57 Pole Utility3303 American River South Levee AR04 1293+99 Fence3304 American River South Levee AR04 1294+63 Fence4306 American River South Levee AR04 1294+78 Pole Utility2082 American River South Levee AR04 1295+16 Pole Utility3419 American River South Levee AR04 1295+67 Structure2083 American River South Levee AR04 1295+83 Stairway Concrete Private2084 American River South Levee AR04 1296+18 Pole Utility2085 American River South Levee AR04 1297+11 Pole Utility3305 American River South Levee AR04 1297+52 Fence2086 American River South Levee AR04 1298+10 Structure Building1900 American River South Levee AR04 1298+32 Stairway Brick Mr. Robert Schultz2087 American River South Levee AR04 1298+37 Stairway Brick Private2088 American River South Levee AR04 1298+60 Pole Utility1882 American River South Levee AR04 1298+88 Fence Douglas Moreda / Diane Fishburn2089 American River South Levee AR04 1299+07 Stairway Concrete Block Private2090 American River South Levee AR04 1299+16 Pole Utility2091 American River South Levee AR04 1299+61 Stairway Concrete Block Private2092 American River South Levee AR04 1300+28 Stairway Concrete Block Private3420 American River South Levee AR04 1300+57 Structure2093 American River South Levee AR04 1300+70 Pole Utility2094 American River South Levee AR04 1301+95 Pole Utility2095 American River South Levee AR04 1302+50 Stairway Concrete Private2096 American River South Levee AR04 1302+55 Pole Utility2097 American River South Levee AR04 1303+43 Stairway Brick and Concrete Private2098 American River South Levee AR04 1303+80 Pole Utility2099 American River South Levee AR04 1304+05 Stairway Concrete and Dirt Private3307 American River South Levee AR04 1304+75 Fence3308 American River South Levee AR04 1305+00 Fence2100 American River South Levee AR04 1305+07 Pole Utility2101 American River South Levee AR04 1305+46 Stairway Brick Private

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2102 American River South Levee AR04 1305+91 Stairway Concrete block Private2104 American River South Levee AR04 1306+24 Pole Utility1829 American River South Levee AR04 1306+58 Other Railing Howard S Hyde2103 American River South Levee AR04 1306+60 Stairway Brick Private3309 American River South Levee AR04 1306+73 Structure Shed2105 American River South Levee AR04 1307+35 Stairway Concrete Block Private2106 American River South Levee AR04 1307+42 Pole Utility3310 American River South Levee AR04 1307+74 Fence2107 American River South Levee AR04 1307+99 Stairway Concrete Private3311 American River South Levee AR04 1308+44 Fence2108 American River South Levee AR04 1308+85 Stairway Concrete Block Private2109 American River South Levee AR04 1308+87 Pole Utility3422 American River South Levee AR04 1309+30 Structure4305 American River South Levee AR04 1309+41 Stairway3423 American River South Levee AR04 1310+01 Landscaping2110 American River South Levee AR04 1310+35 Stairway Stone and brick Private2111 American River South Levee AR04 1310+40 Pole Utility3424 American River South Levee AR04 1310+55 Landscaping2112 American River South Levee AR04 1310+69 Stairway Private2113 American River South Levee AR04 1311+24 Stairway Brick Private3425 American River South Levee AR04 1311+36 Landscaping2114 American River South Levee AR04 1311+53 Pole Utility2115 American River South Levee AR04 1311+88 Stairway Brick Private2116 American River South Levee AR04 1312+83 Pole Utility2117 American River South Levee AR04 1312+92 Stairway Brick and Wood Private2119 American River South Levee AR04 1313+86 Valve Manhole California State University, Sacramento2118 American River South Levee AR04 1313+93 Pole Utility2121 American River South Levee AR04 1314+42 Valve Siphon Breaker Vault City of Sacramento2122 American River South Levee AR04 1314+52 Valve Siphon Breaker Vault City of Sacramento2120 American River South Levee AR04 1314+56 Pump Station 5 pumps City of Sacramento2125 American River South Levee AR04 1315+90 Pole Utility3417 American River South Levee AR04 1315+94 Landscaping2124 American River South Levee AR04 1316+69 Pole Utility2126 American River South Levee AR04 1317+49 Other Street Sign2127 American River South Levee AR04 1317+49 Other Street Sign2123 American River South Levee AR04 1317+88 Pole Utility1808 American River South Levee AR04 1319+42 Other Off Ramp Sacramento County, Dept of Parks and Rec4304 American River South Levee AR04 1319+57 Gate

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2128 American River South Levee AR04 1319+59 Pole Utility4302 American River South Levee AR04 1319+60 Gate4303 American River South Levee AR04 1319+62 Gate3510 American River South Levee AR04 1320+05 Bridge2131 American River South Levee AR04 1320+28 Valve Manhole - Communication Pacific Telephone and Telegraph Company4293 American River South Levee AR04 1320+39 Other Pull Box4294 American River South Levee AR04 1320+40 Other Service Enclosure2129 American River South Levee AR04 1320+44 Other Gaging Station4291 American River South Levee AR04 1320+50 Gate4292 American River South Levee AR04 1320+51 Pole Bollard4298 American River South Levee AR04 1320+51 Gate4295 American River South Levee AR04 1320+53 Gate2130 American River South Levee AR04 1320+55 Pole Power4290 American River South Levee AR04 1320+57 Gate2133 American River South Levee AR04 1320+63 Valve Siphon Breaker Vault City of Sacramento1809 American River South Levee AR04 1320+69 Pole Electric SMUD1874 American River South Levee AR04 1320+71 Pole Conduit Department of Water Resources1820 American River South Levee AR04 1320+74 Pole Cable Sacramento Cable Television, Incorporated2132 American River South Levee AR04 1320+91 Pole Utility4296 American River South Levee AR04 1320+92 Other Overhead Utility4297 American River South Levee AR04 1321+18 Landscaping Tree2335 American River South Levee AR04 1325+40 Well Monitoring Well2334 American River South Levee AR04 1325+49 Well Monitoring Well2134 American River South Levee AR04 1325+82 Other Electrical Vault2333 American River South Levee AR04 1326+30 Other Fire Hydrant2332 American River South Levee AR04 1326+52 Pole Light2331 American River South Levee AR04 1327+60 Pole Light2330 American River South Levee AR04 1328+72 Pole Light2329 American River South Levee AR04 1329+67 Pole Light4289 American River South Levee AR04 1330+39 Pole Light4288 American River South Levee AR04 1330+65 Landscaping Tree4287 American River South Levee AR04 1331+05 Pole Light4286 American River South Levee AR04 1331+10 Valve Fire Hydrant4285 American River South Levee AR04 1331+59 Pole Light4284 American River South Levee AR04 1331+90 Landscaping Tree4283 American River South Levee AR04 1332+12 Pole Light4282 American River South Levee AR04 1332+78 Pole Light4281 American River South Levee AR04 1333+38 Pole Light

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4280 American River South Levee AR04 1333+73 Valve Fire Hydrant2336 American River South Levee AR04 1338+44 Other DI2323 American River South Levee AR04 1339+64 Other Monument2324 American River South Levee AR04 1339+64 Other Monument2325 American River South Levee AR04 1339+69 Other Monument2326 American River South Levee AR04 1339+70 Other Monument2337 American River South Levee AR04 1339+73 Other DI2327 American River South Levee AR04 1339+76 Other Monument2328 American River South Levee AR04 1339+80 Other Monument2321 American River South Levee AR04 1342+30 Other Monument2319 American River South Levee AR04 1342+31 Other Monument2144 American River South Levee AR04 1342+33 Other Bollard2338 American River South Levee AR04 1342+33 Other Bollards2322 American River South Levee AR04 1342+37 Other Monument2320 American River South Levee AR04 1342+38 Other Monument2143 American River South Levee AR04 1342+45 Stairway Concrete Private2339 American River South Levee AR04 1342+61 Other Monument3376 American River South Levee AR04 1344+07 Valve Manhole - Drainage California State University, Sacramento4279 American River South Levee AR04 1345+72 Other2316 American River South Levee AR04 1345+75 Well Monitoring Well2317 American River South Levee AR04 1345+84 Well Monitoring Well2318 American River South Levee AR04 1345+92 Well Monitoring Well4274 American River South Levee AR04 1346+00 Landscaping Tree4276 American River South Levee AR04 1346+00 Other1895 American River South Levee AR04 1346+55 Structure Building Trustees CA State University/Howard Harris2135 American River South Levee AR04 1346+78 Bridge Pedestrian1850 American River South Levee AR04 1346+87 Bridge Pedestrian City of Sacramento4275 American River South Levee AR04 1347+08 Other1890 American River South Levee AR04 1347+15 Valve Air Release Valves California State University, Sacramento2142 American River South Levee AR04 1347+47 Structure Tank 4271 American River South Levee AR04 1347+70 Landscaping Tree2313 American River South Levee AR04 1348+00 Well Monitoring Well2314 American River South Levee AR04 1348+19 Structure3415 American River South Levee AR04 1348+22 Structure2312 American River South Levee AR04 1348+84 Well Monitoring Well2137 American River South Levee AR04 1349+09 Other Electrical Panel3416 American River South Levee AR04 1349+25 Structure4270 American River South Levee AR04 1349+48 Landscaping Tree

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2136 American River South Levee AR04 1350+99 Other Handrail2311 American River South Levee AR04 1351+58 Other Electrical box2310 American River South Levee AR04 1353+04 Pole Light4269 American River South Levee AR04 1353+19 Gate2138 American River South Levee AR04 1354+99 Stairway Concrete Private2309 American River South Levee AR04 1357+26 Valve Air Release Valves City of Sacramento4346 American River South Levee AR04 1359+19 Gate4347 American River South Levee AR04 1359+35 Pole2264 American River South Levee AR04 1359+89 Valve Jacking Shaft SRCSD2281 American River South Levee AR04 1360+59 Valve Gate Valve SRCSD2284 American River South Levee AR04 1360+63 Pole Light2282 American River South Levee AR04 1360+67 Valve Gate Valve SRCSD2283 American River South Levee AR04 1360+72 Other Electrical Equipment2285 American River South Levee AR04 1361+78 Valve Positive Closure Vault1822 American River South Levee AR04 1362+00 Pump Station Intake City of Sacramento1804 American River South Levee AR04 1362+17 Pump Station Intake City of Sacramento1846 American River South Levee AR04 1362+37 Other Filtration Plant City of Sacramento2286 American River South Levee AR04 1362+43 Pole Light4348 American River South Levee AR04 1362+47 Other2265 American River South Levee AR04 1362+91 Valve Manhole - Drainage City of Sacramento3124 American River South Levee AR04 1363+23 Valve Manhole - Positive Closure Vault City of Sacramento3511 American River South Levee AR04 1363+28 Bridge3125 American River South Levee AR04 1363+29 Valve Manhole - Positive Closure Vault City of Sacramento3126 American River South Levee AR04 1363+35 Valve Manhole - Positive Closure Vault City of Sacramento3127 American River South Levee AR04 1363+39 Valve Manhole - Positive Closure Vault City of Sacramento2308 American River South Levee AR04 1363+45 Pump Station Intake City of Sacramento2287 American River South Levee AR04 1363+64 Valve Vault - Communication City of Sacramento2288 American River South Levee AR04 1363+99 Valve Water City of Sacramento2289 American River South Levee AR04 1364+04 Other Vertical Steel Container2290 American River South Levee AR04 1364+13 Pole Security camera4268 American River South Levee AR04 1364+15 Other2291 American River South Levee AR04 1364+42 Pole Light2293 American River South Levee AR04 1365+03 Valve Water City of Sacramento2294 American River South Levee AR04 1365+74 Pole4265 American River South Levee AR04 1366+18 Pole Light2295 American River South Levee AR04 1366+39 Pole Light4266 American River South Levee AR04 1366+39 Gate2303 American River South Levee AR04 1366+47 Other Electrical Equipment

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4264 American River South Levee AR04 1366+56 Pole Light4262 American River South Levee AR04 1366+87 Landscaping Tree2302 American River South Levee AR04 1367+13 Other Fire Hydrant2301 American River South Levee AR04 1367+14 Pole Light2300 American River South Levee AR04 1367+50 Pole Light2299 American River South Levee AR04 1367+92 Pole Light2296 American River South Levee AR04 1368+13 Pole Light2298 American River South Levee AR04 1368+25 Pole Light2297 American River South Levee AR04 1368+39 Structure4261 American River South Levee AR04 1369+11 Pole4260 American River South Levee AR04 1369+39 Gate2266 American River South Levee AR04 1369+65 Stairway Wood Private2267 American River South Levee AR04 1375+66 Valve Broken Richard W. Evans2268 American River South Levee AR04 1375+81 Stairway Concrete Private2269 American River South Levee AR04 1375+82 Stairway Concrete Private4259 American River South Levee AR04 1381+57 Landscaping Tree4256 American River South Levee AR04 1385+61 Other4258 American River South Levee AR04 1385+64 Gate2270 American River South Levee AR04 1385+73 Other Electrical Equipment2275 American River South Levee AR04 1386+00 Valve Siphon Breaker Vault City of Sacramento2278 American River South Levee AR04 1386+29 Bridge Road1837 American River South Levee AR04 1386+87 Pipe Sump Station City of Sacramento1889 American River South Levee AR04 1386+91 Pump Station City of Sacramento1861 American River South Levee AR04 1387+25 Pole Electric SMUD4257 American River South Levee AR04 1387+25 Other4255 American River South Levee AR04 1387+37 Gate2274 American River South Levee AR04 1388+07 Other Utility Tower4254 American River South Levee AR04 1388+17 Other Overhead Utility2273 American River South Levee AR04 1388+71 Other Utility Tower2272 American River South Levee AR04 1389+23 Other Utility Tower4253 American River South Levee AR04 1389+46 Other Overhead Utility2271 American River South Levee AR04 1390+10 Other Utility Tower4251 American River South Levee AR04 1390+18 Gate1888 American River South Levee AR04 1390+20 Other Concrete Path City of Sacramento4252 American River South Levee AR04 1390+42 Other Overhead Utility1838 American River South Levee AR04 1390+85 Other Access Ramp Sacramento County4250 American River South Levee AR04 1391+68 Gate4249 American River South Levee AR04 1391+72 Gate

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2065 American River South Levee AR04 1395+06 Other Electrical box1884 American River South Levee AR04 1395+92 Other Parking Lot Sacramento County2066 American River South Levee AR04 1396+32 Structure Restroom2064 American River South Levee AR04 1398+00 Stairway Concrete Private2063 American River South Levee AR04 1400+89 Other Electrical Equipment2062 American River South Levee AR04 1406+32 Stairway Concrete Private2061 American River South Levee AR04 1407+70 Other Electrical Equipment3219 American River South Levee AR04 1407+77 Other Electrical Vault4248 American River South Levee AR04 1409+89 Landscaping Tree2060 American River South Levee AR04 1409+98 Other Electrical Equipment2059 American River South Levee AR04 1411+64 Stairway Wood Private2058 American River South Levee AR04 1414+37 Stairway Wood Private2057 American River South Levee AR04 1415+29 Stairway Concrete block Private2056 American River South Levee AR04 1417+41 Stairway Concrete Private4247 American River South Levee AR04 1418+67 Stairway2055 American River South Levee AR04 1420+91 Stairway Wood Private2053 American River South Levee AR04 1423+67 Stairway Concrete block Private2052 American River South Levee AR04 1424+51 Stairway Concrete Private2051 American River South Levee AR04 1426+61 Stairway Concrete Private2050 American River South Levee AR04 1427+20 Stairway Concrete Private2049 American River South Levee AR04 1431+80 Stairway Concrete Private2048 American River South Levee AR04 1432+64 Stairway Concrete block Private2047 American River South Levee AR04 1434+20 Stairway Concrete Private1862 American River South Levee AR04 1439+32 Pump Station PS 92 City of Sacramento/County of Sacramento2045 American River South Levee AR04 1439+40 Valve Siphon Breaker Vault City of Sacramento4244 American River South Levee AR04 1439+60 Other Utility4245 American River South Levee AR04 1439+81 Other Overhead Utility4243 American River South Levee AR04 1439+99 Other Utility Tower4242 American River South Levee AR04 1440+67 Gate4241 American River South Levee AR04 1441+06 Other Overhead Utility4240 American River South Levee AR04 1441+19 Other Utility Tower2044 American River South Levee AR04 1442+13 Other Utility4238 American River South Levee AR04 1443+92 Landscaping Tree4239 American River South Levee AR04 1445+72 Landscaping Tree3804 American River South Levee AR04 1446+10 Irrigation2043 American River South Levee AR04 1446+40 Stairway Stone Private2042 American River South Levee AR04 1447+16 Stairway Wood Private2041 American River South Levee AR04 1448+18 Stairway Stone Private

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2040 American River South Levee AR04 1449+48 Stairway Wood Private3412 American River South Levee AR04 1449+61 Landscaping2039 American River South Levee AR04 1450+22 Stairway Wood Private3411 American River South Levee AR04 1451+66 Landscaping planter box2038 American River South Levee AR04 1451+75 Stairway Concrete Private3410 American River South Levee AR04 1455+88 Structure Shed1831 American River South Levee AR04 1459+37 Other Boat Ramp Sacramento County Regional Parks4235 American River South Levee AR04 1459+44 Gate1817 American River South Levee AR04 1461+88 Fence Glennbrook - West Townhouses/Fence Pros2037 American River South Levee AR04 1463+31 Pole Light3135 American River South Levee AR04 1464+16 Other Electrical Equipment4236 American River South Levee AR04 1464+24 Landscaping2036 American River South Levee AR04 1464+35 Other Fire Hydrant3134 American River South Levee AR04 1464+38 Other Electrical Equipment2031 American River South Levee AR04 1465+04 Other Water Fountain2030 American River South Levee AR04 1465+31 Structure Sump?4234 American River South Levee AR04 1468+72 Gate4233 American River South Levee AR04 1468+81 Gate4232 American River South Levee AR04 1469+44 Landscaping Tree4231 American River South Levee AR04 1471+35 Landscaping2029 American River South Levee AR04 1477+39 Stairway Wood Private4229 American River South Levee AR04 1480+31 Gate4230 American River South Levee AR04 1486+81 Gate4228 American River South Levee AR04 1487+02 Landscaping Tree2028 American River South Levee AR04 1487+14 Stairway Concrete Private2027 American River South Levee AR04 1493+84 Other Pipe/Pump American Water4516 American River South Levee AR04 1496+40 Control Structure Outfall Sacramento County3138 American River South Levee AR04 1496+45 Valve Siphon Breaker Vault Sacramento County1826 American River South Levee AR04 1496+78 Pump Station Drainage Sacramento County1876 American River South Levee AR04 1496+90 Pump Station Drainage Sacramento County2024 American River South Levee AR04 1498+40 Stairway Concrete Private2023 American River South Levee AR04 1501+15 Stairway Concrete block Private2022 American River South Levee AR04 1503+74 Stairway Wood Private4227 American River South Levee AR04 1503+92 Landscaping Tree2021 American River South Levee AR04 1505+38 Stairway Wood Private3409 American River South Levee AR04 1505+55 Structure Shed3408 American River South Levee AR04 1507+13 Landscaping2020 American River South Levee AR04 1507+32 Other Cable box

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3407 American River South Levee AR04 1508+27 Landscaping2019 American River South Levee AR04 1508+48 Stairway Wood Private4226 American River South Levee AR04 1508+57 Other Overhead Utility4225 American River South Levee AR04 1509+19 Landscaping Tree2018 American River South Levee AR04 1509+26 Pole Utility1811 American River South Levee AR04 1509+66 Fence James B. Pierce2017 American River South Levee AR04 1510+57 Stairway Wood Private2016 American River South Levee AR04 1511+22 Stairway Wood Private2015 American River South Levee AR04 1513+01 Pole Utility2014 American River South Levee AR04 1514+45 Stairway Wood Private4224 American River South Levee AR04 1515+06 Landscaping Tree2026 American River South Levee AR04 1515+26 Pole Pipe Post Landowner?2013 American River South Levee AR04 1515+91 Stairway Wood Private2012 American River South Levee AR04 1516+41 Stairway Wood Private2011 American River South Levee AR04 1517+02 Stairway Wood Private4223 American River South Levee AR04 1518+05 Landscaping Tree4222 American River South Levee AR04 1518+82 Landscaping Tree2010 American River South Levee AR04 1521+02 Stairway Wood Private4221 American River South Levee AR04 1521+51 Landscaping Tree2009 American River South Levee AR04 1522+31 Other Pump2008 American River South Levee AR04 1522+54 Pole Utility3406 American River South Levee AR04 1523+74 Pole2007 American River South Levee AR04 1524+98 Pole Utility3405 American River South Levee AR04 1526+61 Landscaping3404 American River South Levee AR04 1527+29 Landscaping2006 American River South Levee AR04 1529+01 Stairway Concrete Private2005 American River South Levee AR04 1529+73 Stairway Concrete Private2004 American River South Levee AR04 1530+29 Stairway Concrete Private2003 American River South Levee AR04 1531+57 Stairway Concrete Private2002 American River South Levee AR04 1539+72 Stairway Concrete Private2001 American River South Levee AR04 1550+90 Pole Utility1848 American River South Levee AR04 1551+50 Bridge Pedestrian Sacramento County4220 American River South Levee AR04 1553+80 Gate1870 American River South Levee AR04 1553+84 Fence Sacramento County, Dept of PW WQ3403 American River South Levee AR04 1562+96 Bridge4216 American River South Levee AR04 1590+48 Gate4218 American River South Levee AR04 1594+16 Pole Utility4219 American River South Levee AR04 1594+16 Other Vault

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3856 American River South Levee AR04 1594+27 Pump Station Sacramento County4215 American River South Levee AR04 1626+18 Gate4214 American River South Levee AR04 1626+68 Gate4213 American River South Levee AR04 1629+00 Pump Station4211 American River South Levee AR04 1630+88 Landscaping Tree4212 American River South Levee AR04 1631+34 Pole Wood Post1784 American River South Levee AR04 999+86 Cutoff Wall1787 American River South Levee AR04 999+86 Landscaping Trees Sac Housing and Redevelopment Agency1792 American River South Levee AR04 999+86 Valve4368 Sacramento River East Levee AR05 1000+31 Landscaping Tree3149 Sacramento River East Levee AR05 1003+71 Pole Light3150 Sacramento River East Levee AR05 1004+22 Landscaping Irrigation3223 Sacramento River East Levee AR05 1004+23 Other Electrical box 27 Sacramento River East Levee AR05 1005+51 Landscaping Vegetation Sandman Motel, Inc. 3151 Sacramento River East Levee AR05 1006+92 Stairway Brick Private4369 Sacramento River East Levee AR05 1008+91 Other Shipping container3806 Sacramento River East Levee AR05 1009+90 Gate 34 Sacramento River East Levee AR05 1009+99 Pump Station City of Sacramento45 Sacramento River East Levee AR05 1010+04 Boating Facility Wharf 3224 Sacramento River East Levee AR05 1012+75 Well Monitoring Well4370 Sacramento River East Levee AR05 1013+60 Other Bike pole station 5 Sacramento River East Levee AR05 1015+13 Landscaping Vegetation City of Sacramento 3152 Sacramento River East Levee AR05 1016+01 Landscaping Irrigation 32 Sacramento River East Levee AR05 1016+66 Pump Station City of Sacramento 3448 Sacramento River East Levee AR05 1016+74 Bridge City of Sacramento3153 Sacramento River East Levee AR05 1017+63 Landscaping Irrigation3155 Sacramento River East Levee AR05 1019+07 Other Access Gate3154 Sacramento River East Levee AR05 1019+13 Valve Manhole - Electric SMUD3807 Sacramento River East Levee AR05 1019+18 Gate 13 Sacramento River East Levee AR05 1020+32 Pole SMUD
3156 Sacramento River East Levee AR05 1021+13 Other Call Box3227 Sacramento River East Levee AR05 1021+15 Other Concrete3228 Sacramento River East Levee SACD 1023+29 Floodwall 37 Sacramento River East Levee SACD 1023+40 Other flow meter USGS28 Sacramento River East Levee SACD 1024+48 Floodwall 216 Sacramento River East Levee SACD 1024+48 Floodwall
3229 Sacramento River East Levee SACD 1024+74 Floodwall 2 Sacramento River East Levee SACD 1027+16 Structure Building Niagara Chemical Division

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4377 Sacramento River East Levee SACD 1028+97 Structure 12 Sacramento River East Levee SACD 1028+98 Pole Department of Water Resources 4374 Sacramento River East Levee SACD 1029+01 Other Gaging station.4371 Sacramento River East Levee SACD 1029+03 Pole Power pole3230 Sacramento River East Levee SACD 1029+06 Other river guage4376 Sacramento River East Levee SACD 1029+20 Stairway Concrete 3231 Sacramento River East Levee SACD 1030+03 Fence Metal3498 Sacramento River East Levee SACD 1030+46 Pole3233 Sacramento River East Levee SACD 1030+48 Structure Concrete3232 Sacramento River East Levee SACD 1030+53 Well Monitoring Well3242 Sacramento River East Levee SACD 1031+78 Valve Manhole3236 Sacramento River East Levee SACD 1032+00 Structure Concrete4378 Sacramento River East Levee SACD 1032+09 Other Monitoring well 43 Sacramento River East Levee SACD 1032+45 Structure Building CA Dept. of Water Resources 3235 Sacramento River East Levee SACD 1033+36 Well Monitoring Well3809 Sacramento River East Levee SACD 1034+91 Gate3808 Sacramento River East Levee SACD 1036+11 Gate3239 Sacramento River East Levee SACD 1036+77 Structure Concrete debris3240 Sacramento River East Levee SACD 1037+34 Fence Metal 31 Sacramento River East Levee SACD 1038+72 Structure temporary shed California Zonolite Co.30 Sacramento River East Levee SACD 1038+87 Pole SMUD 6 Sacramento River East Levee SACD 1039+13 Bridge Road
3241 Sacramento River East Levee SACD 1040+81 Fence Metal 234 Sacramento River East Levee SACD 1041+65 Other Floating ramp Sac Housing and Redevelopment Agency196 Sacramento River East Levee SACD 1054+53 Valve Drainage237 Sacramento River East Levee SACD 1054+53 Valve Drainage255 Sacramento River East Levee SACD 1054+53 Valve Drainage262 Sacramento River East Levee SACD 1054+53 Valve Drainage170 Sacramento River East Levee SACD 1055+07 Valve PG&E223 Sacramento River East Levee SACD 1055+07 Valve256 Sacramento River East Levee SACD 1055+07 Valve 4522 Sacramento River East Levee SACD 1055+40 Control Structure 15.5 ft to outer wall Inside river city cafe building 194 Sacramento River East Levee SACD 1056+14 Valve249 Sacramento River East Levee SACD 1056+14 Valve City of Sacramento274 Sacramento River East Levee SACD 1056+14 Valve Sewer210 Sacramento River East Levee SACD 1058+63 Structure Building Sac Housing and Redevelopment Agency231 Sacramento River East Levee SACD 1058+63 Structure Building Sac Housing and Redevelopment Agency222 Sacramento River East Levee SACD 1058+82 Boating Facility Wharf

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
169 Sacramento River East Levee SACD 1058+83 Boating Facility Wharf271 Sacramento River East Levee SACD 1060+59 Bridge Road Caltrans165 Sacramento River East Levee SACD 1062+80 Structure Building Forrar Williams Architects188 Sacramento River East Levee SACD 1062+89 Other Deck City of Sacramento 4054 Sacramento River East Levee SACD 1063+00 Boating Facility Dock 21 Sacramento River East Levee SACD 1064+18 Floodwall
700 Sacramento River East Levee SACD 1065+74 Valve Manhole Private - State 4523 Sacramento River East Levee SACD 1066+50 Control Structure P st Pump station Cal trans4525 Sacramento River East Levee SACD 1069+00 Valve Manhole with stairs 248 Sacramento River East Levee SACD 1074+91 Floodwall
3810 Sacramento River East Levee SACD 1079+07 Gate Bollard4383 Sacramento River East Levee SACD 1079+39 Pole Light poles up to tower bridge 703 Sacramento River East Levee SACD 1079+49 Valve Water City of Sacramento Redevelopment Agency 4384 Sacramento River East Levee SACD 1079+51 Irrigation Sprinklers 3811 Sacramento River East Levee SACD 1081+88 Gate Bollard 699 Sacramento River East Levee SACD 1082+13 Valve Irrigation City of Sacramento Redevelopment Agency697 Sacramento River East Levee SACD 1082+16 Other Cleanout698 Sacramento River East Levee SACD 1082+30 Landscaping Park City of Sacramento 4382 Sacramento River East Levee SACD 1087+81 Pole With lock 272 Sacramento River East Levee SACD 1091+00 Boating Facility Wharf694 Sacramento River East Levee SACD 1091+25 Well Monitoring Well 4381 Sacramento River East Levee SACD 1093+92 Pole Grout wall 235 Sacramento River East Levee SACD 1096+11 Boating Facility Wharf PG&E259 Sacramento River East Levee SACD 1096+49 Stairway Concrete SRCSD199 Sacramento River East Levee SACD 1103+45 Bridge Road 4380 Sacramento River East Levee SACD 1106+92 Landscaping Tree 690 Sacramento River East Levee SACD 1107+21 Other grout filled bollard 3812 Sacramento River East Levee SACD 1111+02 Gate
186 Sacramento River East Levee SACD 1111+58 Well Extraction Conoco Phillips 3813 Sacramento River East Levee SACD 1112+61 Gate
689 Sacramento River East Levee SACD 1112+69 Pole Utility 4379 Sacramento River East Levee SACD 1112+88 Pole Light 688 Sacramento River East Levee SACD 1112+97 Pole Utility 4385 Sacramento River East Levee SACD 1113+74 Structure Cabinet with lock 686 Sacramento River East Levee SACD 1114+83 Well Monitoring Well176 Sacramento River East Levee SACD 1115+13 Boating Facility Wharf687 Sacramento River East Levee SACD 1115+13 Well Monitoring Well233 Sacramento River East Levee SACD 1118+11 Structure Deck / utilities City of Sacramento

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
685 Sacramento River East Levee SACD 1120+04 Valve Water684 Sacramento River East Levee SACD 1122+61 Other Well City of Sacramento 3500 Sacramento River East Levee SACD 1123+14 Bridge pedestrian bridge 683 Sacramento River East Levee SACD 1123+96 Pole Utility190 Sacramento River East Levee SACD 1124+28 Structure Building City of Sacramento227 Sacramento River East Levee SACD 1125+01 Boating Facility Dock City of Sacramento 4386 Sacramento River East Levee SACD 1125+52 Landscaping Trees 692 Sacramento River East Levee SACD 1125+83 Other Access Gate209 Sacramento River East Levee SACD 1125+86 Landscaping Vegetation Sacramento Area Flood Control Agency 3814 Sacramento River East Levee SACD 1126+07 Gate
268 Sacramento River East Levee SACD 1126+87 Landscaping Irrigation City of Sacramento279 Sacramento River East Levee SACD 1126+93 Valve678 Sacramento River East Levee SACD 1132+27 Pole Light157 Sacramento River East Levee SACD 1134+62 Other Marina Expansion City of Sacramento 3501 Sacramento River East Levee SACD 1140+98 Structure 676 Sacramento River East Levee SACD 1141+17 Pump Station sump / building City of Sacramento 3815 Sacramento River East Levee SACD 1144+42 Gate Bollard 675 Sacramento River East Levee SACD 1144+72 Other Bollard218 Sacramento River East Levee SACD 1153+21 Valve Sewer162 Sacramento River East Levee SACD 1153+75 Valve Sewer240 Sacramento River East Levee SACD 1157+50 Valve185 Sacramento River East Levee SACD 1158+04 Valve265 Sacramento River East Levee SACD 1159+65 Valve674 Sacramento River East Levee SACD 1164+69 Well Water673 Sacramento River East Levee SACD 1164+72 Well Water181 Sacramento River East Levee SACD 1166+08 Fence fence and asphalt City of Sacramento 3502 Sacramento River East Levee SACD 1174+06 Structure Structure City of Sacramento 668 Sacramento River East Levee SACD 1174+39 Pole Call box City of Sacramento203 Sacramento River East Levee SACD 1184+90 Well Water CA Dept. of Water Resources667 Sacramento River East Levee SACD 1187+54 Pole Unknown666 Sacramento River East Levee SACD 1189+55 Valve Positive Closure Vault City of Sacramento664 Sacramento River East Levee SACD 1190+01 Well Water261 Sacramento River East Levee SACD 1190+02 Well Water City of Sacramento247 Sacramento River East Levee SACD 1198+26 Floodwall 3504 Sacramento River East Levee SACD 1199+56 Bridge Railroad 290 Sacramento River East Levee SACD 1204+40 Pole Light289 Sacramento River East Levee SACD 1213+56 Other Phone Box 2794 Sacramento River East Levee SACD 1215+22 Bridge Road

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3816 Sacramento River East Levee SACD 1215+37 Gate2795 Sacramento River East Levee MA9 1216+56 Pole Light2793 Sacramento River East Levee MA9 1219+20 Pole Light3505 Sacramento River East Levee MA9 1224+49 Landscaping over grown shrubs2792 Sacramento River East Levee MA9 1226+52 Pole Light2791 Sacramento River East Levee MA9 1228+25 Pole Light2796 Sacramento River East Levee MA9 1235+62 Pole Light2790 Sacramento River East Levee MA9 1235+83 Other Bollard2797 Sacramento River East Levee MA9 1236+59 Pole Light2835 Sacramento River East Levee MA9 1236+84 Irrigation Sprinklers2834 Sacramento River East Levee MA9 1236+86 Valve Water2804 Sacramento River East Levee MA9 1237+75 Other beam2798 Sacramento River East Levee MA9 1237+76 Pole Light2800 Sacramento River East Levee MA9 1238+53 Other Fire Hydrant2801 Sacramento River East Levee MA9 1239+04 Pole Light2802 Sacramento River East Levee MA9 1239+27 Other Bollard2807 Sacramento River East Levee MA9 1239+48 Other Electrical equipment2805 Sacramento River East Levee MA9 1239+73 Other Bollard2806 Sacramento River East Levee MA9 1239+80 Pole Light3710 Sacramento River East Levee MA9 1240+27 Landscaping2808 Sacramento River East Levee MA9 1240+90 Pole Light2809 Sacramento River East Levee MA9 1241+52 Other Fire Hydrant2810 Sacramento River East Levee MA9 1241+97 Pole Light2811 Sacramento River East Levee MA9 1242+58 Pole Light2814 Sacramento River East Levee MA9 1243+05 Structure Building2812 Sacramento River East Levee MA9 1243+30 Pole Light2813 Sacramento River East Levee MA9 1243+86 Pole Light2441 Sacramento River East Levee MA9 1244+27 Structure Hotel / Marina Captains Table Hotel LLC, / Robert Leach4388 Sacramento River East Levee MA9 1244+44 Pole Bollard2818 Sacramento River East Levee MA9 1244+46 Pole Light2816 Sacramento River East Levee MA9 1244+47 Other Bollard2817 Sacramento River East Levee MA9 1244+51 Stairway Concrete Private2820 Sacramento River East Levee MA9 1245+91 Stairway Concrete Private2821 Sacramento River East Levee MA9 1246+27 Other Fire Hydrant2822 Sacramento River East Levee MA9 1246+28 Valve Manhole2825 Sacramento River East Levee MA9 1246+93 Stairway Concrete Private2824 Sacramento River East Levee MA9 1246+96 Other Walkway4053 Sacramento River East Levee MA9 1247+01 Boating Facility Dock

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3712 Sacramento River East Levee MA9 1247+17 Irrigation Drain3711 Sacramento River East Levee MA9 1248+41 Irrigation Box2833 Sacramento River East Levee MA9 1248+43 Irrigation Sprinkler System Controls2827 Sacramento River East Levee MA9 1248+51 Other Fire Hydrant2828 Sacramento River East Levee MA9 1248+55 Valve Water2832 Sacramento River East Levee MA9 1249+05 Structure pool equipment 3715 Sacramento River East Levee MA9 1249+80 Landscaping2829 Sacramento River East Levee MA9 1250+09 Pole Utility2864 Sacramento River East Levee MA9 1250+12 Structure Building Private2866 Sacramento River East Levee MA9 1250+81 Structure Building Private2865 Sacramento River East Levee MA9 1251+04 Structure Building Private2868 Sacramento River East Levee MA9 1251+61 Structure Shed Private2867 Sacramento River East Levee MA9 1251+92 Structure Building Private3716 Sacramento River East Levee MA9 1252+45 Landscaping2447 Sacramento River East Levee MA9 1252+64 Pole Sign Randy Borene2869 Sacramento River East Levee MA9 1252+66 Pole Utility2875 Sacramento River East Levee MA9 1252+99 Pole2463 Sacramento River East Levee MA9 1255+87 Pump Station Drainage City of Sacramento2870 Sacramento River East Levee MA9 1256+11 Pole Light2871 Sacramento River East Levee MA9 1256+12 Structure Shed3841 Sacramento River East Levee MA9 1256+35 Gate Needs Data3717 Sacramento River East Levee MA9 1256+48 Landscaping2872 Sacramento River East Levee MA9 1256+52 Access Gate Gate2873 Sacramento River East Levee MA9 1256+73 Stairway Wood Private2959 Sacramento River East Levee MA9 1256+74 Valve Water2442 Sacramento River East Levee MA9 1257+95 Boating Facility Dock Tim O'Brien3718 Sacramento River East Levee MA9 1258+07 Landscaping2955 Sacramento River East Levee MA9 1258+25 Well Observation2956 Sacramento River East Levee MA9 1258+25 Well Observation3719 Sacramento River East Levee MA9 1259+30 Landscaping2953 Sacramento River East Levee MA9 1259+54 Irrigation Sprinkler Charles E. Zell2951 Sacramento River East Levee MA9 1259+63 Boating Facility Dock3720 Sacramento River East Levee MA9 1260+15 Landscaping3584 Sacramento River East Levee MA9 1260+47 Irrigation Sprinkler2946 Sacramento River East Levee MA9 1261+01 Irrigation Sprinkler3734 Sacramento River East Levee MA9 1261+04 Landscaping2943 Sacramento River East Levee MA9 1261+16 Irrigation Sprinkler2945 Sacramento River East Levee MA9 1261+16 Irrigation Sprinkler Ernest L. Long

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3372 Sacramento River East Levee MA9 1261+16 Irrigation Sprinkler3585 Sacramento River East Levee MA9 1261+60 Irrigation Sprinkler2942 Sacramento River East Levee MA9 1261+64 Boating Facility Dock Private2458 Sacramento River East Levee MA9 1261+76 Stairway Harry F. Stathos2449 Sacramento River East Levee MA9 1261+79 Boating Facility Dock Frank Stathos3721 Sacramento River East Levee MA9 1261+80 Landscaping3735 Sacramento River East Levee MA9 1261+80 Landscaping2939 Sacramento River East Levee MA9 1262+63 Pole Utility2934 Sacramento River East Levee MA9 1262+98 Irrigation Sprinkler Landowner?3733 Sacramento River East Levee MA9 1263+03 Landscaping2456 Sacramento River East Levee MA9 1263+34 Stairway Wood William A. Peron2932 Sacramento River East Levee MA9 1263+51 Stairway Wood Private2933 Sacramento River East Levee MA9 1263+62 Stairway Wood Janey John2935 Sacramento River East Levee MA9 1263+85 Boating Facility Dock2960 Sacramento River East Levee MA9 1263+91 Structure Building2444 Sacramento River East Levee MA9 1264+05 Landscaping Trees Mrs. Mary Luoinski3586 Sacramento River East Levee MA9 1264+30 Irrigation Sprinkler2930 Sacramento River East Levee MA9 1264+59 Irrigation Sprinkler Landowner?2931 Sacramento River East Levee MA9 1264+68 Irrigation Sprinkler Landowner?2452 Sacramento River East Levee MA9 1264+93 Boating Facility Dock William A. Peron2926 Sacramento River East Levee MA9 1265+10 Irrigation Sprinkler Landowner?3732 Sacramento River East Levee MA9 1265+23 Landscaping2925 Sacramento River East Levee MA9 1265+75 Stairway Wood Private2923 Sacramento River East Levee MA9 1265+93 Stairway Stone Private2924 Sacramento River East Levee MA9 1265+97 Boating Facility Dock2453 Sacramento River East Levee MA9 1266+13 Fence Gazebo Timothy J. & Catherine P. Taylor2919 Sacramento River East Levee MA9 1266+49 Irrigation Sprinkler2918 Sacramento River East Levee MA9 1266+50 Irrigation Sprinkler Landowner?2917 Sacramento River East Levee MA9 1266+53 Irrigation Sprinkler Landowner?2916 Sacramento River East Levee MA9 1266+85 Irrigation Sprinkler Landowner2914 Sacramento River East Levee MA9 1266+91 Stairway Wood Private2915 Sacramento River East Levee MA9 1266+96 Stairway Wood Private3731 Sacramento River East Levee MA9 1267+43 Landscaping2913 Sacramento River East Levee MA9 1267+66 Irrigation Sprinkler Landowner3587 Sacramento River East Levee MA9 1267+73 Irrigation Sprinkler3523 Sacramento River East Levee MA9 1267+98 Irrigation Sprinkler Landowner?2909 Sacramento River East Levee MA9 1268+05 Stairway Wood Private2908 Sacramento River East Levee MA9 1268+15 Stairway Concrete Private

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2911 Sacramento River East Levee MA9 1268+16 Irrigation Sprinkler Landowner?3722 Sacramento River East Levee MA9 1268+23 Landscaping2907 Sacramento River East Levee MA9 1268+40 Irrigation Sprinkler Landowner2906 Sacramento River East Levee MA9 1268+43 Irrigation Sprinkler Landowner2905 Sacramento River East Levee MA9 1268+69 Irrigation Sprinkler Landowner2904 Sacramento River East Levee MA9 1268+78 Irrigation Sprinkler Landowner2901 Sacramento River East Levee MA9 1269+04 Stairway Concrete Private2900 Sacramento River East Levee MA9 1269+13 Irrigation Sprinkler Landowner?2898 Sacramento River East Levee MA9 1269+14 Irrigation Sprinkler Landowner2899 Sacramento River East Levee MA9 1269+19 Irrigation Sprinkler Landowner3723 Sacramento River East Levee MA9 1269+28 Landscaping3496 Sacramento River East Levee MA9 1269+53 Structure2897 Sacramento River East Levee MA9 1269+75 Stairway Path Private2895 Sacramento River East Levee MA9 1269+93 Irrigation Sprinkler Landowner?2891 Sacramento River East Levee MA9 1270+00 Irrigation Sprinkler Landowner?3724 Sacramento River East Levee MA9 1270+09 Landscaping2893 Sacramento River East Levee MA9 1270+71 Boating Facility Dock2894 Sacramento River East Levee MA9 1270+76 Boating Facility Dock3730 Sacramento River East Levee MA9 1270+85 Landscaping3494 Sacramento River East Levee MA9 1270+93 Irrigation Faucet2889 Sacramento River East Levee MA9 1271+06 Stairway Concrete Private2890 Sacramento River East Levee MA9 1271+10 Stairway Wood Private3725 Sacramento River East Levee MA9 1271+25 Landscaping2885 Sacramento River East Levee MA9 1271+71 Stairway Concrete Landowner2886 Sacramento River East Levee MA9 1271+71 Stairway Concrete Private2887 Sacramento River East Levee MA9 1271+78 Other bench with concrete slabe2884 Sacramento River East Levee MA9 1272+51 Pole Utility2883 Sacramento River East Levee MA9 1273+19 Stairway Concrete Owen R. Baser2445 Sacramento River East Levee MA9 1273+40 Landscaping Trees Owen R. Baser3817 Sacramento River East Levee MA9 1273+56 Gate3726 Sacramento River East Levee MA9 1274+27 Landscaping2882 Sacramento River East Levee MA9 1274+85 Pole Utility2881 Sacramento River East Levee MA9 1275+39 Pole Utility3727 Sacramento River East Levee MA9 1275+47 Landscaping2879 Sacramento River East Levee MA9 1275+69 Boating Facility Dock2466 Sacramento River East Levee MA9 1275+77 Stairway Concrete Frank Stathos2880 Sacramento River East Levee MA9 1275+98 Structure Concrete block3728 Sacramento River East Levee MA9 1277+07 Landscaping

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2877 Sacramento River East Levee MA9 1277+88 Well Observation3818 Sacramento River East Levee MA9 1277+88 Gate2878 Sacramento River East Levee MA9 1277+91 Well Observation2619 Sacramento River East Levee MA9 1277+95 Access Gate Gate3729 Sacramento River East Levee MA9 1278+36 Landscaping3750 Sacramento River East Levee MA9 1279+43 Landscaping3749 Sacramento River East Levee MA9 1280+67 Landscaping3748 Sacramento River East Levee MA9 1282+19 Landscaping2862 Sacramento River East Levee MA9 1283+42 Pole Utility3492 Sacramento River East Levee MA9 1283+90 Irrigation Sprinkler3747 Sacramento River East Levee MA9 1284+78 Landscaping2861 Sacramento River East Levee MA9 1285+12 Stairway Stone Private3746 Sacramento River East Levee MA9 1285+63 Landscaping3745 Sacramento River East Levee MA9 1286+33 Landscaping3491 Sacramento River East Levee MA9 1286+39 Stairway4391 Sacramento River East Levee MA9 1286+60 Landscaping Tree3744 Sacramento River East Levee MA9 1287+29 Landscaping3743 Sacramento River East Levee MA9 1288+23 Landscaping2860 Sacramento River East Levee MA9 1288+51 Stairway Brick Private2859 Sacramento River East Levee MA9 1289+20 Pole Utility4400 Sacramento River East Levee MA9 1290+14 Other Steps in levee4401 Sacramento River East Levee MA9 1290+24 Landscaping Trees3819 Sacramento River East Levee MA9 1291+22 Gate4399 Sacramento River East Levee MA9 1292+57 Landscaping Tree3751 Sacramento River East Levee MA9 1293+35 Landscaping4392 Sacramento River East Levee MA9 1294+09 Landscaping Tree4398 Sacramento River East Levee MA9 1294+25 Landscaping Tree2840 Sacramento River East Levee MA9 1294+43 Pole Utility3497 Sacramento River East Levee MA9 1294+87 Stairway2842 Sacramento River East Levee MA9 1296+55 Pole Utility2843 Sacramento River East Levee MA9 1297+31 Stairway Wood Private3599 Sacramento River East Levee MA9 1297+92 Pool4393 Sacramento River East Levee MA9 1298+51 Landscaping Trees2844 Sacramento River East Levee MA9 1298+58 Pole Utility3752 Sacramento River East Levee MA9 1299+15 Landscaping4394 Sacramento River East Levee MA9 1299+82 Landscaping Trees2845 Sacramento River East Levee MA9 1300+52 Pole Utility4395 Sacramento River East Levee MA9 1301+55 Landscaping Tree

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2846 Sacramento River East Levee MA9 1302+57 Pole Utility2847 Sacramento River East Levee MA9 1302+65 Structure Shed4396 Sacramento River East Levee MA9 1302+92 Landscaping Tree2849 Sacramento River East Levee MA9 1304+38 Pole Utility3742 Sacramento River East Levee MA9 1305+91 Landscaping2850 Sacramento River East Levee MA9 1305+98 Pole Utility4397 Sacramento River East Levee MA9 1306+31 Landscaping Tree3741 Sacramento River East Levee MA9 1306+87 Landscaping2852 Sacramento River East Levee MA9 1309+48 Valve Control Box2853 Sacramento River East Levee MA9 1309+50 Valve Control Box2454 Sacramento River East Levee MA9 1310+22 Bridge Road3740 Sacramento River East Levee MA9 1310+60 Landscaping2451 Sacramento River East Levee MA9 1311+86 Boating Facility Dock Artesion Development2857 Sacramento River East Levee MA9 1313+63 Pole Utility3597 Sacramento River East Levee MA9 1314+16 Irrigation Sprinkler3820 Sacramento River East Levee MA9 1314+66 Gate2858 Sacramento River East Levee MA9 1315+09 Structure Building Landowner3739 Sacramento River East Levee MA9 1315+18 Landscaping2618 Sacramento River East Levee MA9 1315+95 Access Gate Gate2459 Sacramento River East Levee MA9 1315+96 Fence Across Levee Wayne Brown3821 Sacramento River East Levee MA9 1316+01 Gate3822 Sacramento River East Levee MA9 1318+59 Gate4403 Sacramento River East Levee MA9 1320+44 Pole Solar panel4404 Sacramento River East Levee MA9 1320+48 Other Elec box above ground4402 Sacramento River East Levee MA9 1320+69 Other Elec equipment 2784 Sacramento River East Levee MA9 1320+85 Other Electrical equipment SMUD?2785 Sacramento River East Levee MA9 1320+93 Pole Light4405 Sacramento River East Levee MA9 1320+94 Other Elec panel2786 Sacramento River East Levee MA9 1321+07 Other Electrical equipment SMUD?3738 Sacramento River East Levee MA9 1321+32 Landscaping2782 Sacramento River East Levee MA9 1322+47 Valve Vacuum Pump Station SMUD?2781 Sacramento River East Levee MA9 1322+54 Pole Light2780 Sacramento River East Levee MA9 1322+69 Other Electrical equipment SMUD?4004 Sacramento River East Levee MA9 1322+94 Pump Station SRCSD2778 Sacramento River East Levee MA9 1323+17 Pole Sign2777 Sacramento River East Levee MA9 1324+20 Pole Sign2776 Sacramento River East Levee MA9 1325+21 Pole Sign2775 Sacramento River East Levee MA9 1326+08 Pole Sign

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2769 Sacramento River East Levee MA9 1327+74 Pole Sign2768 Sacramento River East Levee MA9 1328+25 Other Electrical equipment SRCSD2443 Sacramento River East Levee MA9 1328+37 Pump Station Vacuum SRCSD2767 Sacramento River East Levee MA9 1328+78 Pole Sign2766 Sacramento River East Levee MA9 1329+71 Pole Sign2765 Sacramento River East Levee MA9 1330+71 Pole Sign2764 Sacramento River East Levee MA9 1333+56 Pole Sign2763 Sacramento River East Levee MA9 1335+55 Pole Sign2761 Sacramento River East Levee MA9 1335+96 Well Monitoring Well2762 Sacramento River East Levee MA9 1335+98 Well Monitoring Well2760 Sacramento River East Levee MA9 1336+52 Pole Sign2759 Sacramento River East Levee MA9 1337+53 Pole Sign2758 Sacramento River East Levee MA9 1338+50 Pole Sign3823 Sacramento River East Levee MA9 1341+74 Gate4407 Sacramento River East Levee MA9 1344+02 Landscaping Trees4406 Sacramento River East Levee MA9 1345+14 Pole2499 Sacramento River East Levee MA9 1346+14 Stairway Wood Mitch Wright / Kenneth Heller3824 Sacramento River East Levee MA9 1347+01 Gate2756 Sacramento River East Levee MA9 1347+04 Other Access Gate2757 Sacramento River East Levee MA9 1347+06 Stairway Concrete Private4408 Sacramento River East Levee MA9 1351+96 Landscaping Trees3588 Sacramento River East Levee MA9 1354+58 Well Monitoring Well3589 Sacramento River East Levee MA9 1354+65 Well Monitoring Well3590 Sacramento River East Levee MA9 1354+68 Well Monitoring Well3736 Sacramento River East Levee MA9 1354+85 Landscaping garden2750 Sacramento River East Levee MA9 1360+30 Pump Station Sump City of Sacramento2745 Sacramento River East Levee MA9 1360+35 Stairway Concrete City of Sacramento2747 Sacramento River East Levee MA9 1360+36 Pole Light City of Sacramento2746 Sacramento River East Levee MA9 1360+50 Structure Building City of Sacramento3825 Sacramento River East Levee MA9 1360+65 Gate2617 Sacramento River East Levee MA9 1360+66 Access Gate Gate2744 Sacramento River East Levee MA9 1360+67 Stairway Brick Private3007 Sacramento River East Levee MA9 1361+93 Stairway Concrete block Private3623 Sacramento River East Levee MA9 1362+14 Structure3008 Sacramento River East Levee MA9 1362+67 Structure Shed3471 Sacramento River East Levee MA9 1364+32 Landscaping3781 Sacramento River East Levee MA9 1365+48 Landscaping3621 Sacramento River East Levee MA9 1369+30 Pool

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2994 Sacramento River East Levee MA9 1370+19 Boating Facility Dock3620 Sacramento River East Levee MA9 1371+93 Pool3472 Sacramento River East Levee MA9 1373+45 Landscaping2472 Sacramento River East Levee MA9 1373+67 Boating Facility Dock Charles and Marily Reed2988 Sacramento River East Levee MA9 1373+68 Boating Facility Dock Charles and Marily Reed3618 Sacramento River East Levee MA9 1374+18 Pool2985 Sacramento River East Levee MA9 1374+62 Stairway Wood Private2982 Sacramento River East Levee MA9 1375+33 Boating Facility Dock2514 Sacramento River East Levee MA9 1378+45 Other Retaining Wall Richard and Lili Butterfield3617 Sacramento River East Levee MA9 1380+04 Pool3616 Sacramento River East Levee MA9 1380+11 Irrigation2975 Sacramento River East Levee MA9 1380+39 Access Gate Gate Private3826 Sacramento River East Levee MA9 1380+40 Gate3615 Sacramento River East Levee MA9 1380+55 Pool3778 Sacramento River East Levee MA9 1380+66 Landscaping3614 Sacramento River East Levee MA9 1381+40 Pool3474 Sacramento River East Levee MA9 1382+30 Landscaping2972 Sacramento River East Levee MA9 1382+97 Boating Facility Dock3777 Sacramento River East Levee MA9 1383+19 Landscaping2491 Sacramento River East Levee MA9 1386+54 Other Retaining Wall Stephen D. Munro2966 Sacramento River East Levee MA9 1386+63 Stairway Abandoned Private3476 Sacramento River East Levee MA9 1387+11 Landscaping3612 Sacramento River East Levee MA9 1387+18 Pool3611 Sacramento River East Levee MA9 1387+95 Irrigation2961 Sacramento River East Levee MA9 1388+45 Stairway Metal Private3827 Sacramento River East Levee MA9 1388+99 Gate2616 Sacramento River East Levee MA9 1389+02 Access Gate Gate Private3776 Sacramento River East Levee MA9 1389+24 Landscaping4409 Sacramento River East Levee MA9 1389+78 Landscaping Trees3828 Sacramento River East Levee MA9 1393+26 Gate Bollard2742 Sacramento River East Levee MA9 1394+90 Stairway Wood Private2740 Sacramento River East Levee MA9 1398+86 Pole Light3829 Sacramento River East Levee MA9 1408+15 Gate2615 Sacramento River East Levee MA9 1408+21 Access Gate Gate Private3609 Sacramento River East Levee MA9 1409+04 Well Monitoring Well3610 Sacramento River East Levee MA9 1409+12 Pool3051 Sacramento River East Levee MA9 1409+38 Stairway Concrete Craig Fulster3049 Sacramento River East Levee MA9 1409+42 Stairway Concrete Craig Fulster

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4410 Sacramento River East Levee MA9 1409+98 Other Rodent hole in levee3048 Sacramento River East Levee MA9 1410+16 Stairway Concrete Private3775 Sacramento River East Levee MA9 1410+30 Landscaping3047 Sacramento River East Levee MA9 1410+99 Stairway Concrete Private3608 Sacramento River East Levee MA9 1412+08 Well Monitoring Well3046 Sacramento River East Levee MA9 1412+27 Other Electrical equipment3045 Sacramento River East Levee MA9 1412+47 Stairway Wood Donald Ceccato2505 Sacramento River East Levee MA9 1412+51 Stairway Donald Ceccato3044 Sacramento River East Levee MA9 1413+77 Stairway Concrete Private2611 Sacramento River East Levee MA9 1413+78 Well Monitoring Well2478 Sacramento River East Levee MA9 1414+24 Boating Facility Dock Arthur Naldoza3043 Sacramento River East Levee MA9 1414+25 Stairway Wood Arthur Naldoza3607 Sacramento River East Levee MA9 1414+48 Pool3774 Sacramento River East Levee MA9 1414+50 Landscaping3477 Sacramento River East Levee MA9 1414+73 Structure3042 Sacramento River East Levee MA9 1414+84 Stairway Wood Private3041 Sacramento River East Levee MA9 1415+60 Stairway Stone Private2495 Sacramento River East Levee MA9 1415+61 Stairway Steps M. L. Woy, Jr.3772 Sacramento River East Levee MA9 1416+22 Landscaping3606 Sacramento River East Levee MA9 1416+51 Well Monitoring Well3040 Sacramento River East Levee MA9 1416+57 Stairway Concrete Private3039 Sacramento River East Levee MA9 1417+21 Stairway Concrete block Private3771 Sacramento River East Levee MA9 1417+35 Landscaping3038 Sacramento River East Levee MA9 1418+30 Stairway Private4411 Sacramento River East Levee MA9 1419+00 Landscaping Tree3037 Sacramento River East Levee MA9 1419+25 Stairway Wood Private3036 Sacramento River East Levee MA9 1419+66 Stairway Concrete Private3770 Sacramento River East Levee MA9 1419+74 Landscaping2475 Sacramento River East Levee MA9 1420+38 Landscaping Trees Joyce and Elzia Williams4412 Sacramento River East Levee MA9 1420+43 Stairway Stone2513 Sacramento River East Levee MA9 1422+26 Other Retaining Wall Lionel and Eleanor Holmes4413 Sacramento River East Levee MA9 1422+69 Stairway Wood3035 Sacramento River East Levee MA9 1422+70 Stairway Wood Private3031 Sacramento River East Levee MA9 1423+38 Stairway Wood Private3032 Sacramento River East Levee MA9 1423+39 Stairway Stone Private3030 Sacramento River East Levee MA9 1423+88 Well Monitoring Well3478 Sacramento River East Levee MA9 1423+89 Landscaping3029 Sacramento River East Levee MA9 1423+94 Well Monitoring Well

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3769 Sacramento River East Levee MA9 1424+50 Landscaping3028 Sacramento River East Levee MA9 1424+54 Stairway Wood Private2482 Sacramento River East Levee MA9 1425+48 Stairway Concrete City of Sacramento2739 Sacramento River East Levee MA9 1425+70 Pump Station Sump 70 City of Sacramento4415 Sacramento River East Levee MA9 1425+71 Other Elec box3479 Sacramento River East Levee MA9 1426+17 Landscaping3480 Sacramento River East Levee MA9 1426+82 Landscaping bench3015 Sacramento River East Levee MA9 1429+15 Other Electrical equipment3016 Sacramento River East Levee MA9 1429+17 Boating Facility Dock4417 Sacramento River East Levee MA9 1429+25 Stairway Wood branches3013 Sacramento River East Levee MA9 1430+60 Stairway Concrete block Private4418 Sacramento River East Levee MA9 1431+01 Landscaping Garden2471 Sacramento River East Levee MA9 1433+42 Fence Across Levee Ellis and Frances Silva2614 Sacramento River East Levee MA9 1433+47 Access Gate Gate3830 Sacramento River East Levee MA9 1433+49 Gate3768 Sacramento River East Levee MA9 1436+48 Landscaping2735 Sacramento River East Levee MA9 1437+12 Boating Facility Dock Private3767 Sacramento River East Levee MA9 1437+38 Landscaping4419 Sacramento River East Levee MA9 1439+74 Other Survey monument 3483 Sacramento River East Levee MA9 1440+47 Landscaping3766 Sacramento River East Levee MA9 1441+65 Landscaping4420 Sacramento River East Levee MA9 1442+68 Landscaping Overgrown trees2733 Sacramento River East Levee MA9 1443+94 Stairway Concrete Private3765 Sacramento River East Levee MA9 1444+27 Landscaping2493 Sacramento River East Levee MA9 1447+04 Boating Facility Dock Jeff Ormand2729 Sacramento River East Levee MA9 1447+13 Boating Facility Dock Jeff Ormand3762 Sacramento River East Levee MA9 1448+44 Landscaping3602 Sacramento River East Levee MA9 1450+36 Pool3761 Sacramento River East Levee MA9 1451+38 Landscaping3759 Sacramento River East Levee MA9 1452+89 Landscaping3486 Sacramento River East Levee MA9 1454+39 Structure4421 Sacramento River East Levee MA9 1454+62 Landscaping Trees3487 Sacramento River East Levee MA9 1455+57 Stairway3831 Sacramento River East Levee MA9 1457+44 Gate2717 Sacramento River East Levee MA9 1459+96 Pole Utility2492 Sacramento River East Levee MA9 1460+06 Landscaping Trees Pamela B. Wittpen2718 Sacramento River East Levee MA9 1460+33 Pole Utility2714 Sacramento River East Levee MA9 1460+96 Boating Facility Dock

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2715 Sacramento River East Levee MA9 1461+05 Boating Facility Dock2468 Sacramento River East Levee MA9 1461+16 Boating Facility Dock Pamela B. Wittpen2712 Sacramento River East Levee MA9 1462+01 Well Monitoring Well2713 Sacramento River East Levee MA9 1462+02 Well Monitoring Well2613 Sacramento River East Levee MA9 1463+65 Access Gate Gate MA93832 Sacramento River East Levee MA9 1463+65 Gate3758 Sacramento River East Levee MA9 1465+34 Landscaping4422 Sacramento River East Levee MA9 1468+58 Landscaping Trees3757 Sacramento River East Levee MA9 1474+42 Landscaping2693 Sacramento River East Levee MA9 1476+23 Pole Light3756 Sacramento River East Levee MA9 1477+99 Landscaping2697 Sacramento River East Levee MA9 1478+54 Structure Abandoned3755 Sacramento River East Levee MA9 1478+81 Landscaping2699 Sacramento River East Levee MA9 1479+33 Structure Building2702 Sacramento River East Levee MA9 1483+13 Structure Abandoned?3490 Sacramento River East Levee MA9 1484+15 Landscaping3754 Sacramento River East Levee MA9 1487+79 Landscaping4423 Sacramento River East Levee MA9 1488+33 Pole Bollard3600 Sacramento River East Levee MA9 1492+91 Structure2707 Sacramento River East Levee MA9 1495+99 Structure Shed4424 Sacramento River East Levee MA9 1496+61 Landscaping Trees3753 Sacramento River East Levee MA9 1499+15 Landscaping2500 Sacramento River East Levee MA9 1503+39 Fence Marin Oaks Homeowners Association3833 Sacramento River East Levee MA9 1503+42 Gate2612 Sacramento River East Levee MA9 1503+43 Fence Gate Private4425 Sacramento River East Levee MA9 1508+51 Stairway Cuts in levee4426 Sacramento River East Levee MA9 1514+51 Stairway Foot ramp4427 Sacramento River East Levee MA9 1518+57 Landscaping Tree3834 Sacramento River East Levee MA9 1518+94 Gate4428 Sacramento River East Levee MA9 1522+39 Stairway Foot traffic path4429 Sacramento River East Levee MA9 1523+32 Landscaping Trees4430 Sacramento River East Levee MA9 1527+80 Landscaping Trees3709 Sacramento River East Levee MA9 1531+19 Landscaping3835 Sacramento River East Levee MA9 1531+67 Gate2681 Sacramento River East Levee MA9 1532+49 Pump Station Sump 132 City of Sacramento2670 Sacramento River East Levee MA9 1533+59 Well Monitoring Well2669 Sacramento River East Levee MA9 1533+60 Well Monitoring Well4431 Sacramento River East Levee MA9 1534+74 Landscaping Trees

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4432 Sacramento River East Levee MA9 1540+30 Landscaping Trees4433 Sacramento River East Levee MA9 1547+26 Pole Levee marker4434 Sacramento River East Levee MA9 1549+48 Pole Bollard4435 Sacramento River East Levee MA9 1549+52 Pole Sign4436 Sacramento River East Levee MA9 1549+60 Pole Sign3836 Sacramento River East Levee MA9 1549+67 Gate4437 Sacramento River East Levee MA9 1549+86 Pole Street light2651 Sacramento River East Levee MA9 1550+56 Pole Light2653 Sacramento River East Levee MA9 1551+71 Pole Light2652 Sacramento River East Levee MA9 1552+25 Pole Light2510 Sacramento River East Levee MA9 1552+32 Other Boat Ramp City of Sacramento2654 Sacramento River East Levee MA9 1552+52 Pole Light2657 Sacramento River East Levee MA9 1552+88 Stairway Path City of Sacramento2656 Sacramento River East Levee MA9 1553+36 Stairway Path City of Sacramento2476 Sacramento River East Levee MA9 1553+51 Boating Facility Boat Launch2655 Sacramento River East Levee MA9 1553+64 Pole Light2658 Sacramento River East Levee MA9 1554+52 Pole Light3837 Sacramento River East Levee MA9 1554+68 Gate3838 Sacramento River East Levee MA9 1557+57 Gate4440 Sacramento River East Levee MA9 1568+96 Stairway Pedestrian ramp from home4441 Sacramento River East Levee MA9 1569+28 Stairway Pedestrian ramp4443 Sacramento River East Levee MA9 1572+89 Pole Sign4444 Sacramento River East Levee MA9 1573+87 Landscaping Tree3706 Sacramento River East Levee MA9 1575+76 Landscaping4445 Sacramento River East Levee MA9 1578+82 Landscaping Trees2660 Sacramento River East Levee MA9 1579+48 Pole Light4446 Sacramento River East Levee MA9 1580+40 Landscaping Tree4447 Sacramento River East Levee MA9 1582+42 Other Stump2520 Sacramento River East Levee MA9 1586+26 Other Access Ramps City of Sacramento2662 Sacramento River East Levee MA9 1587+08 Pole Light4448 Sacramento River East Levee MA9 1596+58 Landscaping Overgrown onto Landside toe of levee4449 Sacramento River East Levee MA9 1599+99 Stairway Foot steps embedded into slope3708 Sacramento River East Levee MA9 1601+60 Landscaping4450 Sacramento River East Levee MA9 1603+69 Landscaping Trees4451 Sacramento River East Levee MA9 1611+09 Landscaping Tree4452 Sacramento River East Levee MA9 1611+28 Stairway Stones in slope3842 Sacramento River East Levee MA9 1611+91 Landscaping Needs Data2504 Sacramento River East Levee MA9 1615+00 Landscaping Bench Waterside Pat Lydon

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4453 Sacramento River East Levee MA9 1615+53 Stairway Pedestrian ramp4454 Sacramento River East Levee MA9 1616+14 Landscaping Trees4455 Sacramento River East Levee MA9 1621+00 Landscaping Tree4457 Sacramento River East Levee MA9 1627+01 Stairway Pedestrian foot ramp4456 Sacramento River East Levee MA9 1627+75 Landscaping Tree3839 Sacramento River East Levee MA9 1633+67 Gate4458 Sacramento River East Levee MA9 1635+00 Landscaping Trees3703 Sacramento River East Levee MA9 1638+62 Landscaping4459 Sacramento River East Levee MA9 1639+99 Pole Sign2649 Sacramento River East Levee MA9 1642+11 Valve Water2650 Sacramento River East Levee MA9 1642+12 Valve Water4460 Sacramento River East Levee MA9 1644+52 Landscaping Tree4461 Sacramento River East Levee MA9 1647+17 Stairway Pedestrian path4462 Sacramento River East Levee MA9 1649+70 Landscaping Tree4463 Sacramento River East Levee MA9 1651+10 Landscaping Tree4464 Sacramento River East Levee MA9 1652+62 Landscaping Trees4465 Sacramento River East Levee MA9 1655+55 Landscaping Tree2635 Sacramento River East Levee MA9 1656+07 Pole Light4466 Sacramento River East Levee MA9 1656+11 Stairway Pedestrian path4467 Sacramento River East Levee MA9 1657+13 Landscaping Trees2634 Sacramento River East Levee MA9 1657+66 Pole Light3704 Sacramento River East Levee MA9 1658+05 Landscaping3840 Sacramento River East Levee MA9 1659+41 Gate Needs Data4468 Sacramento River East Levee MA9 1659+51 Pole Sign3705 Sacramento River East Levee MA9 1659+96 Landscaping2636 Sacramento River East Levee MA9 1664+21 Other Fire Hydrant2648 Sacramento River East Levee MA9 1664+62 Pump Station Intake4469 Sacramento River East Levee MA9 1667+82 Landscaping Tree2474 Sacramento River East Levee MA9 1668+81 Pump Station Sump 28 City of Sacramento4470 Sacramento River East Levee MA9 1669+21 Landscaping Tree2643 Sacramento River East Levee MA9 1669+34 Pump Station Sump 28 City of Sacramento2528 Sacramento River East Levee MA9 1677+03 Other Buried Wire Frontier Communications2529 Sacramento River East Levee MA9 1677+13 Pole Utility2533 Sacramento River East Levee MA9 1678+18 Pump Station Drainage City of Sacramento4475 Sacramento River East Levee MA9 1678+45 Gate Top of levee2530 Sacramento River East Levee MA9 1678+57 Pole Utility2534 Sacramento River East Levee MA9 1680+13 Pole Utility4478 Sacramento River East Levee MA9 1680+72 Landscaping Trees

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2535 Sacramento River East Levee MA9 1681+81 Pole Utility2536 Sacramento River East Levee MA9 1683+19 Pole Utility2537 Sacramento River East Levee MA9 1684+78 Pole Utility2538 Sacramento River East Levee MA9 1686+25 Pole Utility2539 Sacramento River East Levee MA9 1687+91 Pole Utility2543 Sacramento River East Levee MA9 1689+62 Structure large vault2542 Sacramento River East Levee MA9 1689+73 Pole Utility2544 Sacramento River East Levee MA9 1691+52 Pole Utility2545 Sacramento River East Levee MA9 1692+86 Pole Utility4479 Sacramento River East Levee MA9 1695+28 Landscaping Trees2546 Sacramento River East Levee MA9 1698+09 Pole Utility2547 Sacramento River East Levee MA9 1700+14 Pole Utility3450 Sacramento River East Levee MA9 1700+24 Access Gate4480 Sacramento River East Levee MA9 1700+24 Gate Landside broken3451 Sacramento River East Levee MA9 1701+69 Structure3452 Sacramento River East Levee MA9 1702+52 Structure4481 Sacramento River East Levee MA9 1703+32 Landscaping Overgrown 2570 Sacramento River East Levee MA9 1703+56 Stairway Wood Private3453 Sacramento River East Levee MA9 1703+94 Structure4482 Sacramento River East Levee MA9 1704+32 Stairway Walkway embedded into levee3455 Sacramento River East Levee MA9 1704+55 Structure3454 Sacramento River East Levee MA9 1704+63 Stairway3456 Sacramento River East Levee MA9 1705+12 Landscaping2571 Sacramento River East Levee MA9 1705+32 Stairway Wood Private4483 Sacramento River East Levee MA9 1707+25 Gate Landside ramp3458 Sacramento River East Levee MA9 1707+30 Access Gate4484 Sacramento River East Levee MA9 1707+71 Landscaping Trees2569 Sacramento River East Levee MA9 1709+39 Structure Building3459 Sacramento River East Levee MA9 1710+79 Pole2568 Sacramento River East Levee MA9 1710+82 Stairway Concrete Private2566 Sacramento River East Levee MA9 1711+02 Boating Facility Dock4485 Sacramento River East Levee MA9 1711+18 Landscaping Tree3460 Sacramento River East Levee MA9 1711+49 Structure2563 Sacramento River East Levee MA9 1711+73 Valve Electric2562 Sacramento River East Levee MA9 1712+25 Pole Utility2561 Sacramento River East Levee MA9 1712+95 Pole Utility2560 Sacramento River East Levee MA9 1713+19 Stairway Concrete Private3461 Sacramento River East Levee MA9 1713+46 Structure

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
4488 Sacramento River East Levee MA9 1713+60 Stairway Wood waterside4486 Sacramento River East Levee MA9 1713+67 Landscaping Tree4487 Sacramento River East Levee MA9 1713+77 Pole Steel pole with flags2498 Sacramento River East Levee MA9 1716+09 Stairway Concrete Catherine V. Morabito3462 Sacramento River East Levee MA9 1718+09 Structure3463 Sacramento River East Levee MA9 1718+71 Landscaping3464 Sacramento River East Levee MA9 1719+03 Access Gate4490 Sacramento River East Levee MA9 1719+61 Gate 16.5 ft2558 Sacramento River East Levee MA9 1719+84 Other DI2556 Sacramento River East Levee MA9 1720+00 Pole Utility2557 Sacramento River East Levee MA9 1720+36 Pole Utility2554 Sacramento River East Levee MA9 1721+16 Pole Light2553 Sacramento River East Levee MA9 1721+27 Stairway Concrete Private2555 Sacramento River East Levee MA9 1721+30 Structure Building Private2551 Sacramento River East Levee MA9 1721+61 Stairway Concrete Private3803 Sacramento River East Levee MA9 1721+75 Landscaping2550 Sacramento River East Levee MA9 1721+83 Stairway Concrete Private3470 Sacramento River East Levee MA9 1721+83 Boating Facility Dock2549 Sacramento River East Levee MA9 1721+88 Pole Utility2552 Sacramento River East Levee MA9 1721+99 Structure Building3465 Sacramento River East Levee MA9 1722+57 Landscaping4491 Sacramento River East Levee MA9 1722+64 Landscaping Thick overgrown shrubs and trees4492 Sacramento River East Levee MA9 1723+46 Landscaping Trees4493 Sacramento River East Levee MA9 1726+61 Gate 17ft2572 Sacramento River East Levee MA9 1729+20 Other Propane tank2440 Sacramento River East Levee MA9 1729+43 Bridge Rehabilitate Sacramento County2488 Sacramento River East Levee MA9 1729+54 Bridge Rehabilitate Sacramento County2579 Sacramento River East Levee MA9 1729+78 Other Electrical Vault2578 Sacramento River East Levee MA9 1729+79 Well Monitoring Well2580 Sacramento River East Levee MA9 1730+03 Other Electrical equipment2581 Sacramento River East Levee MA9 1730+14 Pole Utility2582 Sacramento River East Levee MA9 1730+49 Pole Utility2584 Sacramento River East Levee MA9 1732+88 Pole Utility4494 Sacramento River East Levee MA9 1732+99 Gate4495 Sacramento River East Levee MA9 1734+22 Landscaping Trees3466 Sacramento River East Levee MA9 1734+55 Access Gate2592 Sacramento River East Levee MA9 1734+92 Valve Unknown4496 Sacramento River East Levee MA9 1734+98 Gate

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
2589 Sacramento River East Levee MA9 1735+10 Well Monitoring Well2586 Sacramento River East Levee MA9 1735+12 Valve Water2587 Sacramento River East Levee MA9 1735+14 Valve Water2588 Sacramento River East Levee MA9 1735+18 Well Monitoring Well2585 Sacramento River East Levee MA9 1735+22 Well Monitoring Well2590 Sacramento River East Levee MA9 1735+24 Valve Manhole2591 Sacramento River East Levee MA9 1735+39 Structure Building2595 Sacramento River East Levee MA9 1735+62 Valve Vault2596 Sacramento River East Levee MA9 1735+70 Pole Utility2597 Sacramento River East Levee MA9 1735+89 Pole Utility4497 Sacramento River East Levee MA9 1736+77 Gate3467 Sacramento River East Levee MA9 1737+17 Access Gate2598 Sacramento River East Levee MA9 1737+93 Pole Utility2599 Sacramento River East Levee MA9 1740+57 Pole Utility2600 Sacramento River East Levee MA9 1742+55 Structure Pump house2601 Sacramento River East Levee MA9 1742+96 Pole Utility2602 Sacramento River East Levee MA9 1744+24 Pole Utility2603 Sacramento River East Levee MA9 1745+54 Pole Utility2604 Sacramento River East Levee MA9 1747+23 Pole Utility2605 Sacramento River East Levee MA9 1748+25 Pole Utility4498 Sacramento River East Levee MA9 1749+55 Landscaping Trees2606 Sacramento River East Levee MA9 1750+93 Pole Utility2607 Sacramento River East Levee MA9 1753+49 Pole Utility3469 Sacramento River East Levee MA9 1754+69 Access Gate2608 Sacramento River East Levee MA9 1756+02 Pole Utility3192 Sacramento River East Levee MA9 1756+84 Structure Pump house2609 Sacramento River East Levee MA9 1758+29 Pole Utility3053 Sacramento River East Levee MA9 1760+58 Pole Utility3059 Sacramento River East Levee MA9 1761+94 Other steel beam3060 Sacramento River East Levee MA9 1762+70 Boating Facility Dock3054 Sacramento River East Levee MA9 1762+89 Pole Utility2621 Sacramento River East Levee MA9 1765+22 Pole Utility3056 Sacramento River East Levee MA9 1767+40 Other Drainage2622 Sacramento River East Levee MA9 1767+50 Pole Utility2623 Sacramento River East Levee MA9 1769+76 Pole Utility4500 Sacramento River East Levee MA9 1769+90 Gate3061 Sacramento River East Levee MA9 1770+55 Valve Water3063 Sacramento River East Levee MA9 1770+55 Pump Station pump SRCSD

American South Levee System (ASLS) - Encroachments
SAFCA ID Levee Unit Station Category Subcategory Owner
3064 Sacramento River East Levee MA9 1770+55 Pole Utility3065 Sacramento River East Levee MA9 1770+55 Pole3066 Sacramento River East Levee MA9 1770+55 Other Propane tank3067 Sacramento River East Levee MA9 1770+55 Pole Crane3068 Sacramento River East Levee MA9 1770+55 Structure Building3069 Sacramento River East Levee MA9 1770+55 Other Electrical equipment4501 Sacramento River East Levee MA9 1770+55 Gate Levee access

Appendix J3.

American River South ULDC
Penetrations Exception
Work Plan - Mead & Hunt
Mead & Hunt | 180 Promenade Circle, Suite 240, Sacramento, CA 95834 | 916-971-3961 | meadhunt.com Technical Memorandum
To: Thomas Engler, MBK Engineers
From: Stephen Sullivan, Civil Engineer of Record
Reviewed by: Jeffrey Kashiwada, Senior Project Engineer Date: March 21, 2025
Subject: Penetration Exceptions Work Plan, American River South Levee System (ASLS) SAFCA Due Diligence Review for Urban Levee Design Criteria Section 7.13 This Technical Memorandum (TM) is part of the Sacramento Area Flood Control Agency’s (SAFCA) due diligence review for compliance with the California Department of Water Resources (DWR) Urban Levee Design Criteria (ULDC) for the ASLS. This TM pertains to Section 7.13 – Penetrations.

The purpose of this TM is to provide background, justification, and work plans for exceptions to ULDC Section 7.13 requirements for penetrations. Mead & Hunt has identified penetrations, as summarized in our Penetration At-Risk Engineering Evaluations TM, which require a work plan to resolve exceptions to ULDC criteria. This TM and the Penetration At-Risk Engineering Evaluations TM are attached as Appendices to Mead & Hunt’s ULDC Due Diligence Report for the ASLS.

ULDC Section 7.13 criteria states:

Civil engineer needs to assess existing penetrations and render an opinion as to their impact on the reliable performance of the levee/floodwall for the full range of loading up to the hydraulic top of levee (HTOL).

Mead & Hunt evaluated penetrations based on a compilation of requirements from the U.S. Army Corps of Engineers (USACE), Central Valley Flood Protection Board (CVFPB), ULDC, and Federal Emergency Management Agency (FEMA) which focused on four criteria – structural strength, joint flexibility, emergency closure, and condition of the penetration. The specific criteria used is outlined in our previous certification reviews in 2015. As part of the current due diligence effort, Mead & Hunt has re-screened penetrations for engineering evaluations and condition assessment factors. The specific factors that were considered in the Penetration At-Risk Engineering Evaluations TM were: below design water surface elevation (DWSE); structural factors (depth, material, and diameter); age; joint flexibility; CVFPB permit status; and inspection completion/documentation within the last five (5) years. All evaluations were conducted in accordance with ULDC Section 7.13.

Based upon our Penetration At-Risk Engineering Evaluations TM (referenced above), Mead & Hunt has developed work plans for penetrations that require an exception to ULDC Section 7.13 criteria. The categorical risk assessment reasoning for each category's exceptions and proposed work plans are discussed below in Sections 2.1.1 through 2.1.6. Section 2.2 provides a table of the penetrations, Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

including SAFCA ID, exception, category, owner, and basic information.

2.1 Exceptions and Mitigation Plans
Mead & Hunt has screened and provided engineering evaluations for the following exception categories (Penetrations At-Risk Engineering Evaluations TM). For each exception category, there is a proposed work plan (if necessary).

2.1.1 Penetrations Below DWSE
Exception background and assessment: Our Penetration At-Risk Engineering Evaluations TM summarizes the analysis approach and the evaluation. As a result of this screening assessment and analysis, a finding of no significant impact was issued for all penetrations in this category.

Exception work plan: None required.

2.1.2 Mechanical Joint Flexibility Risk Evaluation
Exception background and assessment: Upon initial screening of the need for addressing mechanical joint risk, three (3) Sacramento County drainage pump discharge pipes at Pump Station D-06 – Mayhew Pump Station were flagged for further evaluation. Based upon drawing reviews, the mechanical couplers added during the USACE slurry wall construction activity were not fully encased in controlled low-strength material and present a risk of Concentrated Leak Erosion (CLE) within the levee embankment should the couplings displace.

Work plan: Sacramento County is to obtain and review construction documentation for the pipe installation, such as photographs, inspection reports, and pipe interior inspection/pressure testing.

Sacramento County is to review pipe CCTV inspection with emphasis on the joint displacement and reinspect as required. Assessment findings and supplements to this due diligence report will be issued within one (1) year of transmittal of the Final ULDC Engineer’s Report to the responsible land use agency (County of Sacramento). As required, details for any proposed repairs will be submitted to the Levee Maintenance Agency (LMA)1, CVFPB, and the responsible land use agency for review. The County of Sacramento will ensure such repairs will be completed within five (5) years of the Final ULDC Engineer’s Report.

Completion of the required work plan may include collection of documents, inspection, testing, construction, and reporting. This supplemental information shall be retained and used for review by the land use agency during future ULDC evaluations
1 American River Flood Control District, City of Sacramento or DWR MA-9 depending upon the reach.

Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

2.1.3 Penetration Structural Evaluations
Exception background and assessment: Our Penetration At-Risk Engineering Evaluations TM summarizes the analysis approach. As a result of this screening assessment and analysis, a finding of no significant impact was issued for all penetrations in this category.

Work plan: None required.

2.1.4 Penetrations Exceeding Age Expectancy (Useful Life) Exception background and assessment: Based upon penetration material, anticipated useful life, and owner practices, certain penetrations required further review, as discussed in our Penetration At-Risk Engineering Evaluations TM. Attachment 1 to this TM summarizes existing data on these penetrations, and Attachment 2 maps the location.

A total of forty-five (45) penetrations have been identified that have exceeded the minimum threshold Mead & Hunt has established to screen remaining service life. Attachment 3 summarizes the location and ownership data for these pipes. It is recommended that these pipes be subject to additional inspection. Except as described herein, pipes that have been recently inspected and found to have remaining useful life are also included in the list. However, they are still flagged to identify those that require increased vigilance. The age limit established for screening of penetrations is described in our Penetration At-Risk Engineering Evaluations TM and is based on pipe material.

The age check review identified the following pipes within the City of Sacramento and ARFCD LMA areas requiring more detailed inspections and remediation plans due to prior investigations that revealed defects:
• 30” WSP, SAFCA ID 3246, Sta 1069+03, City Sump 52 Discharge Pipe, Riverwalk at O Street, 58 years old
• 30” WSP, SAFCA ID 245, Sta 1069+10, City Sump 52 Discharge Pipe, Riverwalk at O Street, 58 years old
• 30” WSP, SAFCA ID 166, Sta 1066+05, Caltrans Discharge Pipe, Riverwalk between O and M Streets. (CVFPB ENFORCEMENT CASE No. 2022-156232), 58 years old • 18” WSP, SAFCA ID 4354, Sta 1099+16, Abandoned Sewer Pipe, Downstream side of westbound Hwy 160 bridge, 73 years old3
• 66” WSP, SAFCA ID 1843, Sta 1320+65, City Sump 101 Discharge Pipe, Upstream of H Street bridge, 58 years old
Work plan: The responsible land use agency (County or City of Sacramento) will identify penetrations requiring further assessment and notify the Owners of necessary inspections and 2 Based upon communication with the CVFPB remediation of the flaw identified through inspections is scheduled for repair by Caltrans in the summer of 2025. 3 Pipe invert above design TOL, but remains as an abandoned pipe.

Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

reporting, requesting that any existing available inspection results be provided within 60 days of the transmittal of the Final ULDC Engineer’s Report to the responsible land use agencies (County and City of Sacramento). Supplemental reporting to accompany this due diligence review will be completed by the responsible land use agency within one (1) year of the report date to document further findings and identify any additional work as needed.

The responsible LMA and/or the land use agency should continue to follow up with utility owners and require documentation of pipe conditions. The responsible land use agency will be responsible for enforcement along with the CVFPB if responses from utility owners are delayed.

Based on the findings, the utility owner may be required to develop a replacement plan, as determined necessary by the land use agency and the CVFPB.

Utilities will be required to develop an inspection plan/schedule and/or a replacement plan within one (1) year of notification. All inspections shall be completed within two (2) years of notification. Given the nature of the facilities with existing access limitations, alternative inspection methods may be required.

The five (5) pipes that have been identified as requiring detailed inspections and remediation plans, and based upon prior investigations that revealed defects, shall require remediation plans to support the supplemental reporting within one (1) year of the report date as described in the first paragraph above.

Any penetrations inspected and found to be potentially high-hazard will be prioritized by the responsible land use agency based on the level of risk and must be removed or modified and provided to the land use agency for mitigation. All mitigation efforts must be implemented within five (5) years of the ULDC Engineer’s Report finalization. The removal or modification/permitting efforts must be completed by the penetration owner or as part of a CVFPB Enforcement Action.

Non-high hazard penetrations that have exceeded their anticipated useful life should continue to be inspected every five (5) years (in compliance with ULDC Section 7.13), and additional monitoring should be provided by the penetration owner. During these additional monitoring efforts, performance issues should be reported to the appropriate land use agency, SAFCA, the LMA, and the CVFPB.

Completion of the required work plan, which may include inspection, monitoring, construction, and reporting, shall be documented and transmitted to the responsible land use agency (County or City of Sacramento) and be appended to the ULDC Engineer’s Report. This supplemental information shall be retained and used for review by the land use agency during future ULDC evaluations.

2.1.5 No Associated CVFPB Permit
Exception background and assessment: In our Penetration At-Risk Engineering Evaluations Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

TM, we determined that the ASLS has eight (8) penetrations for which no associated CVFPB permits were found. These unpermitted penetrations are not inherently high-hazard penetrations; however, the lack of documentation and compliance with permitting standards require that specific analyses be conducted to assess each penetration’s risk. Attachment 2 to this TM maps the location of the penetrations lacking permitting documentation.

The penetrations were identified through field investigation and review of plans, but no permits were identified. These penetrations are unlikely to threaten levee integrity or reliability at a full range of loading up to the HTOL based upon a review of available information.

The eight (8) unpermitted penetrations are located on the Mayhew Drain at the confluence with the American River.
• Mayhew Drain Closure Structure, SAFCA ID’s 4502, 4503, 4504, 4505, Quad 96”x96” Reinforced concrete box with positive closure gates and outfall flap gates. USACE Lower American River, Mayhew Drain Closure Structure, File No. AM-04-514 • Sacramento County Pump Station D-06, Mayhew Pump Station, SAFCA ID’s 3855, 3854, 3853, 3852, Three 30” WSP pump discharge pipes, 60” RCP gravity Discharge Pipe. (Originally part of the application for permit 3596, along with three (3) other stations, but removed from final permit.

Work plan: Sacramento County will perform initial outreach to CVFPB for a more in-depth review of files related to these penetrations. The County will notify the responsible utility department of the need to provide appropriate documentation for utility land rights and permits. If data documenting permits (or lack of permitting) is not provided within one (1) year of transmittal of the ULDC Engineer’s Report, Sacramento County will be required to obtain permits to comply with current CVFPB standards.

Completion of the required work plan, which may include collection of documents and reporting, shall be appended to the ULDC Engineer’s Report. This supplemental information shall be retained and used for review by the land use agency during future ULDC evaluations.

2.1.6 Lack of Inspection Data
Exception background and assessment: Due to owner access issues (such as lack of access points, underwater access points, steepness of pipe limiting camera equipment mobility, small diameter pipes with no test stations, and other factors), numerous penetrations within the ASLS have not met the internal inspection requirements under ULDC 7.13.6 for pipes and culverts. The LMA and SAFCA (via Mead & Hunt) have worked with the penetration owners to identify the inspection needs and notified them of their requirements. Most of these penetrations belong to the City of Sacramento, County of Sacramento, California State University, Caltrans, the Sacramento Area Sewer District, PG&E, and Kinder Morgan. The owners of these penetrations are working through their most recent cycle (every five years) of inspections/testing or are obtaining the resources to conduct the initial inspections within the following year. Due to land Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

use and access issues, there is an anticipated delay for some of this work. Attachment 4 to this TM is a table summarizing penetrations requiring inspection documentation as of the date of this TM.

There are no historic issues at the locations of these penetrations and, with the exception of pipes flagged for additional scrutiny due to age in Section 2.1.4 above, the pipes are within their useful service life.

Work plan: Inspection data for ASLS penetrations that has not been received at the time of the transmittal of the Final ULDC Engineer’s Report finalization shall be completed within the next three (3) years, or the land use agency will report this missing information to the CVFPB and request that the missing information be required as part of an appropriate enforcement action.

Any penetrations inspected and found to be potentially high hazard will be prioritized by the responsible land use agency based on the level of risk and must be removed or modified. All mitigation efforts must be implemented within five (5) years of the finalization of the ULDC Engineer’s Report. The removal or modification/permitting efforts must be completed by the penetration owner or as part of a CVFPB Enforcement Action.

Completion of the required work plan, which may include collection of documents and reporting, shall be transmitted to the responsible land use agency (City or County of Sacramento) shall be retained and used for review by the land use agency during future ULDC evaluations.

2.2 List of ASLS Exceptions
Below is a list of exceptions for ASLS, including the SAFCA ID, reach, exception, description, and owner.

The AGE-based exceptions are limited to penetrations that have been found to have significant signs of aging. A separate list of penetrations flagged for exceeding useful life is provided in Attachment 4.

SAFCA

ID UNIT LEVEE EXCEPTION STATION DESCRIPTION OWNER
3853 AR04
American River
South Levee Joints 1594+41 30” WSP Sacramento County
3854 AR04
American River
South Levee Joints 1594+34 30” WSP Sacramento County
3855 AR04
American River
South Levee Joints 1594+27 30” WSP Sacramento County
3246 Sac D
Sacramento
River East
Levee
Age 1069+03 30” WSP City of
Sacramento
245 Sac D
Sacramento
River East
Levee
Age 1069+10 30” WSP City of
Sacramento
166 Sac D
Sacramento
River East
Levee
Age 1066+05 30” WSP Caltrans
Technical Memorandum
Thomas Engler, MBK Engineers
March 21, 2025

SAFCA

ID UNIT LEVEE EXCEPTION STATION DESCRIPTION OWNER
4354 AR04 American River
South Levee Age 1099+16 18” WSP City of Sacramento
1843 AR04 American River
South Levee
Age 1320+65 66” WSP City of
Sacramento
4502 AR07 Mayhew Drain Permit Not
Found
1555+00 96”x96” RCB Sacramento
County
4503 AR07 Mayhew Drain Permit Not
Found
1555+00 96”x96” RCB Sacramento
County
4504 AR07 Mayhew Drain Permit Not
Found
1555+00 96”x96” RCB Sacramento
County
4505 AR07 Mayhew Drain Permit Not
Found 1555+00 96”x96” RCB Sacramento County
3855 AR07 Mayhew Drain Permit Not
Found 1594+27 30” WSP Sacramento County
3854 AR07 Mayhew Drain Permit Not
Found 1594+34 30” WSP Sacramento County
3853 AR07 Mayhew Drain Permit Not
Found 1594+41 30” WSP Sacramento County
3852 AR07 Mayhew Drain Permit Not
Found 1594+48 66” RCP Sacramento County
Mead & Hunt has concluded that the work plans described in Section 2.1 provide the necessary risk management of penetrations and have determined that the reliability of performance of the ASLS is unlikely to be affected for the full range of loading up to the HTOL. However, due to aging infrastructure and the period between each due diligence review, there are limitations to the conclusions included in this TM. All conclusions are based on this specific snapshot in time, assuming that proper inspection, maintenance, repair, and replacement by utility owners and enforcement of the condition requirements of the permits by the CVFPB is completed as outlined herein and in the manner described in our Due Diligence Report. Special attention should be paid to documenting the performance and condition of penetrations that are anticipated to be at the end of their useful life.

Attachment 1. Further Evaluation for Penetrations
Flagged for Mechanical Joint Flexibility Risk Evaluation The following welded steel pump discharge piping penetrations were found to have joint couplings that are susceptible to breaching if displaced. Leakage out if the pressurized pipe or seepage into the pipe can open erosive seepage pathways within the embankment (CLE risk). The driving heads are small, and the pipes are partially encased in controlled low-strength material (CLSM), thereby minimizing the risk to levee integrity. Section 2.1.2 of this TM describes our work plan to perform detailed documentation reviews, inspections, and/or testing to further evaluate the risk.

SAFCA ID’s 3853, 3854, 3855, AR04 Station 1551+74
• Owner/Permit: County of Sacramento, No permit found, work by the USACE. • Description: Sacramento County Pump Station D-06 – Mayhew Pump Station, three-30” Welded Steel Discharge Pipes with two couplings each in waterside slope of levee embankment.
• Evaluation: Requires further review of available construction documentation, joint inspections, and pressure testing.
• Finding: Requires further construction documentation and inspections/testing as part of the work plan described in Section 2.1.2 of this TM.

Flagged for Age Check Further Evaluation
The following penetrations are beyond their typical service life and prior investigations that revealed defects. The City Sump 52 and Caltrans discharge pipes are concrete encased through the levee and have closure valves at the waterside, thereby reducing the risk of damage from pipe leakage. The abandoned sewer pipe invert elevation is near the MTOL, embedded in the concrete bridge abutment, but is open to the waterway. The City Sump 101 66” Sump WSP induces a CLE risk if the integrity of the pipe wall is breached. Section 2.1.4 of this TM describes our work plan to perform detailed inspections and testing for this aging infrastructure to reduce risk.
• 30” WSP, SAFCA ID 3246, Sta 1069+03, City Sump 52 Discharge Pipe, Riverwalk at O Street, 58 years old
• 30” WSP, SAFCA ID 245, Sta 1069+10, City Sump 52 Discharge Pipe, Riverwalk at O Street, 58 years old
• 30” WSP< SAFCA ID 166, Sta 1066+05, Caltrans Discharge Pipe, Riverwalk between O and M Streets. (CVFPB ENFORCEMENT CASE No. 2022-156234), 58 years old • 18” WSP, SAFCA ID 4354, Sta 1099+16, Abandoned Sewer Pipe, Downstream side of westbound Hwy 160 bridge, 73 years old
• 66” WSP, SAFCA ID 1843, Sta 1320+65, City Sump 101 Discharge Pipe, Upstream of H Street bridge, 58 years old
Flagged for No Associated CVFPB Permit
4 Based upon communication with the CVFPB remediation of the flaw identified through inspections is scheduled for repair by Caltrans in the summer of 2025.

The following penetrations lack documentation for CVFPB permitting. The Mayhew Drain closure structure culverts were installed by the USACE, with appropriate levee safety reviews. The USACE does not obtain permits for such work, and the permitting will be a documentation exercise. The Mayhew pump station discharge pipes were originally authorized under permit 3596, but subsequently removed for the final permit and the USACE replaced the piping through the levee during levee strengthening work. The permitting, if no further documentation, is an administrative exercise. • Mayhew Drain Closure Structure, SAFCA ID’s 4502, 4503, 4504, 4505, Quad 96”x96” Reinforced concrete box with positive closure gates and outfall flap gates. USACE Lower American River, Mayhew Drain Closure Structure, File No. AM-04-514
• Sacramento County Pump Station D-06, Mayhew Pump Station, SAFCA ID’s 3855, 3854, 3853, 3852, Three 30” WSP pump discharge pipes, 60” RCP gravity Discharge Pipe. (Originally part of the application for permit 3596, along with three (3) other stations, but removed from final permit.) Flagged for Lack of inspection Data
The ASLS Penetrations Lacking Inspection Documentation is summarized in Attachment 4 to this TM.

There are no historic issues at the locations of these penetrations and, with the exception of pipes flagged for additional scrutiny due to age in Section 2.1.4 above, the pipes are within their useful service life.

Attachment 2. ASLS Exceptions Exhibit
Note: Sheets without exceptions are not included. Page 1 of 4 Note: Sheets without exceptions are not included. Page 2 of 4 Note: Sheets without exceptions are not included. Page 3 of 4 Note: Sheets without exceptions are not included. Page 4 of 4 Attachment 3. ASLS Penetrations Flagged Due to Age Table American River South Levee System (ASLS) - Age Check
SAFCA ID Levee Unit Station Category Subcategory Size (In) Material Permit Num Install Yr Owner 1039 American River South Levee AR04 1203+02 Gravity Pipe Gravity Drainage 24 CMP 1665 1952 Caltrans 4324 American River South Levee AR04 1203+43 Pipe Drainage 12 WSP 1587 1951 Caltrans 2223 American River South Levee AR04 1242+05 Pipe Drainage 24 WSP 1680 1952 City of Sacramento 1907 American River South Levee AR04 1242+10 Pipe Drainage 24 WSP 1680 1952 City of Sacramento 1815 American River South Levee AR04 1242+16 Pipe Drainage 24 WSP 1680 1952 City of Sacramento 2224 American River South Levee AR04 1242+23 Pipe Drainage 24 WSP 1680 1952 City of Sacramento 1866 American River South Levee AR04 1320+38 Pipe Water 14 WSP 5152 1965 City of Sacramento 3119 American River South Levee AR04 1347+12 Pipe Drainage 14 WSP 1669 1952 California State University, Sacramento 3120 American River South Levee AR04 1347+15 Pipe Drainage 20 WSP 1669 1952 California State University, Sacramento 3121 American River South Levee AR04 1347+19 Pipe Drainage 20 WSP 1669, 7062 1952 California State University, Sacramento 2277 American River South Levee AR04 1386+89 Pipe Drainage 30 WSP 3596-A 1961 City of Sacramento 1908 American River South Levee AR04 1386+96 Pipe Drainage 30 WSP 3596-A 1961 City of Sacramento 1823 American River South Levee AR04 1387+05 Pipe Drainage 30 WSP 3596-A 1961 City of Sacramento 3133 American River South Levee AR04 1439+69 Pipe Drainage 36 WSP 3596 1961 City of Sacramento 3132 American River South Levee AR04 1439+79 Pipe Drainage 36 WSP 3596, 3596-A 1961 City of Sacramento 3131 American River South Levee AR04 1439+87 Pipe Drainage 36 WSP 3596 1961 City of Sacramento 2025 American River South Levee AR04 1496+38 Pipe Drainage 42 WSP 3596 1962 Sacramento County 3136 American River South Levee AR04 1496+48 Pipe Drainage 42 WSP 3596 1962 Sacramento County 3137 American River South Levee AR04 1496+56 Pipe Drainage 42 WSP 3596 1962 Sacramento County 3855 Mayhew Drain AR04 1594+27 Pipe Drainage 30 WSP 1960 Sacramento County 3854 Mayhew Drain AR04 1594+34 Pipe Drainage 30 WSP 1960 Sacramento County 3853 Mayhew Drain AR04 1594+41 Pipe Drainage 30 WSP 1960 Sacramento County 4064 Sacramento River East Levee SACD 1094+47 Pipe Gas 12 WSP 3672 1961 PG&E 236 Sacramento River East Levee SACD 1106+32 Pipe Gas 16 WSP 2371 1956 PG&E 280 Sacramento River East Levee SACD 1106+43 Pipe Gas 8 WSP 544 1931 PG&E 4387 Sacramento River East Levee SACD 1144+22 Pipe Petroleum Pipeline 8 WSP 4914 1965 Chevron Pipe Line Company 669 Sacramento River East Levee SACD 1174+07 Gravity Pipe Gravity Intake 24 WSP 2043 1955 City of Sacramento 4059 Sacramento River East Levee SACD 1189+84 Pipe Sewer 84 STL 773 1939 City of Sacramento 2751 Sacramento River East Levee MA9 1360+25 Pipe Drainage 24 WSP 3569 1961 City of Sacramento 2752 Sacramento River East Levee MA9 1360+29 Pipe Drainage 24 WSP 3569 1961 City of Sacramento 2753 Sacramento River East Levee MA9 1360+33 Pipe Drainage 24 WSP 3569 1961 City of Sacramento 2754 Sacramento River East Levee MA9 1360+37 Pipe Drainage 24 WSP 3569 1961 City of Sacramento 3026 Sacramento River East Levee MA9 1425+37 Pipe Drainage 24 WSP 3981 1962 City of Sacramento 3025 Sacramento River East Levee MA9 1425+39 Pipe Drainage 24 WSP 3981 1962 City of Sacramento 3024 Sacramento River East Levee MA9 1425+46 Pipe Drainage 12 WSP 3981 1962 City of Sacramento 2646 Sacramento River East Levee MA9 1668+60 Gravity Pipe Gravity Drainage 42 WSP 2365 1956 City of Sacramento 3187 Sacramento River East Levee MA9 1668+66 Gravity Pipe Gravity Drainage 42 WSP 2365 1956 City of Sacramento 3186 Sacramento River East Levee MA9 1668+72 Gravity Pipe Gravity Drainage 42 WSP 2365 1956 City of Sacramento 3188 Sacramento River East Levee MA9 1678+17 Pipe Drainage 42 WSP 2390 1956 City of Sacramento 3189 Sacramento River East Levee MA9 1678+25 Pipe Drainage 42 WSP 2390 1956 City of Sacramento 3190 Sacramento River East Levee MA9 1678+33 Pipe Drainage 42 WSP 2390 1956 City of Sacramento 4527 Sacramento River East Levee MA9 1713+60 Pipe Intake 10 WSP O&M Manual 1905 Landowner 4526 Sacramento River East Levee MA9 1732+76 Pipe Intake 14 WSP 1449 1949 A.J. Sweeney 3191 Sacramento River East Levee MA9 1742+61 Pipe Intake 10 WSP 1180 1947 SRCSD 2610 Sacramento River East Levee MA9 1756+76 Pipe Intake 12 WSP 1061 1945 SASD

Attachment 4. ASLS Penetrations Lacking Inspection
Documentation Table
American River South Levee System (ASLS) - Inspection Needed SAFCA ID Levee Unit Station Category Subcategory Size (In) Material Permit Num Owner 3369 American River South Levee AR04 1004+61 Pipe Sewer 2 WSP 12907 BD County of Sacramento Parks 4354 American River South Levee AR04 1099+16 Pipe Sewer 18 WSP 858 SRCSD 1039 American River South Levee AR04 1203+02 Gravity Pipe Gravity Drainage 24 CMP 1665 Caltrans 4324 American River South Levee AR04 1203+43 Pipe Drainage 12 WSP 1587 Caltrans 3117 American River South Levee AR04 1347+02 Pipe Drainage 24 WSP 7062 California State University, Sacramento 1860 American River South Levee AR04 1347+05 Pipe Drainage 24 WSP 7062 California State University, Sacramento 3118 American River South Levee AR04 1347+09 Pipe Drainage 24 WSP 7062 California State University, Sacramento 3119 American River South Levee AR04 1347+12 Pipe Drainage 14 WSP 1669 California State University, Sacramento 3120 American River South Levee AR04 1347+15 Pipe Drainage 20 WSP 1669 California State University, Sacramento 3121 American River South Levee AR04 1347+19 Pipe Drainage 20 WSP 1669, 7062 California State University, Sacramento 3358 American River South Levee AR04 1360+34 Pipe Sewer 60 WSP 17671 SRCSD 1868 American River South Levee AR04 1360+41 Pipe Sewer 60 WSP 17671 SRCSD 2033 American River South Levee AR04 1468+37 Pipe Water 2 WSP 9125-A County of Sacramento Parks & Rec 3191 American River South Levee AR04 1742+61 Pipe Intake 10 WSP 1180 SRCSD 166 Sacramento River East Levee SACD 1066+03 Gravity Pipe Gravity Drainage 30 WSP 5695 Caltrans 4062 Sacramento River East Levee SACD 1073+28 Gravity Pipe Gravity Discharge 16 WSP 15189 Caltrans 173 Sacramento River East Levee SACD 1113+86 Pipe Petroleum 10 WSP 8816 Phillips Petroleum Company 4047 Sacramento River East Levee SACD 1113+86 Pipe Petroleum 10 WSP 8816 Phillips Petroleum Company 4048 Sacramento River East Levee SACD 1113+86 Pipe Petroleum 10 WSP 8816 Phillips Petroleum Company 4049 Sacramento River East Levee SACD 1113+86 Pipe Petroleum 10 WSP 8816 Phillips Petroleum Company 276 Sacramento River East Levee SACD 1115+30 Pipe Petroleum 8 WSP 4914 Standard Oil Company of CA 4387 Sacramento River East Levee SACD 1144+22 Pipe Petroleum Pipeline 8 WSP 4914 Chevron Pipe Line Company 2815 Sacramento River East Levee MA9 1244+22 Pipe Water 4 STL 17207-A Captain's Table Hotel LLC 2783 Sacramento River East Levee MA9 1321+17 Gravity Pipe Gravity Drainage 30 WSP 5183 Caltrans 4070 Sacramento River East Levee MA9 1459+86 Pipe Water 1.5 GI 14022 Mabel Wittpen 4005 Sacramento River East Levee MA9 1459+96 Pipe Discharge 2 GI 14022 Mabel Wittpen 2473 Sacramento River East Levee MA9 1663+53 Pipe Intake 36 WSP 18061 Freeport Water Authority 2508 Sacramento River East Levee MA9 1663+78 Pipe Intake 36 WSP 18061 Freeport Water Authority 2469 Sacramento River East Levee MA9 1664+04 Pipe Intake 36 WSP 18061 Freeport Water Authority 2502 Sacramento River East Levee MA9 1664+30 Pipe Intake 36 WSP 18061 Freeport Water Authority 2489 Sacramento River East Levee MA9 1664+58 Pipe Intake 36 WSP 18061 Freeport Water Authority 2527 Sacramento River East Levee MA9 1664+85 Pipe Intake 36 WSP 18061 Freeport Water Authority 2486 Sacramento River East Levee MA9 1665+17 Pipe Intake 36 WSP 18061 Freeport Water Authority 2485 Sacramento River East Levee MA9 1665+49 Pipe Intake 36 WSP 18061 Freeport Water Authority 2479 Sacramento River East Levee MA9 1688+16 Pipe Gas 20 WSP 16312 SMUD 3864 Sacramento River East Levee MA9 1688+94 Pipe Sewer 42 WSP 17682 SRCSD 3865 Sacramento River East Levee MA9 1689+11 Pipe Sewer 42 WSP 17682 SRCSD 3531 Sacramento River East Levee MA9 1710+84 Pipe Domestic 2 STL 18144 Landowner 3529 Sacramento River East Levee MA9 1710+85 Pipe Domestic 2 STL 18144 Landowner 3527 Sacramento River East Levee MA9 1710+88 Pipe Domestic 2 STL 18144 Landowner 3530 Sacramento River East Levee MA9 1710+88 Pipe Domestic 2 STL 18144 Landowner 3528 Sacramento River East Levee MA9 1710+91 Pipe Domestic 2 STL 18144 Landowner 4527 Sacramento River East Levee MA9 1713+60 Pipe Intake 10 WSP O&M Manual Landowner 3515 Sacramento River East Levee MA9 1720+96 Pipe Water 1.25 STL 1804 W.D. Cofer 3533 Sacramento River East Levee MA9 1720+98 Pipe Water 1.5 GI 1804 W.D. Cofer 3518 Sacramento River East Levee MA9 1721+60 Pipe Water 4 STL 1804 W.D. Cofer

American River South Levee System (ASLS) - Inspection Needed 3520 Sacramento River East Levee MA9 1722+20 Pipe Gas 1.5 WSP 1804 W.D. Cofer 3535 Sacramento River East Levee MA9 1722+24 Pipe Diesel 1.5 GI 1804 W.D. Cofer 3534 Sacramento River East Levee MA9 1722+25 Pipe Gas 1.5 GI 1804 W.D. Cofer 3521 Sacramento River East Levee MA9 1722+35 Pipe Gas 1.5 WSP 1804 W.D. Cofer 2548 Sacramento River East Levee MA9 1722+45 Pipe Sewer 4 GS 1804 W.D. Cofer 4526 Sacramento River East Levee MA9 1732+76 Pipe Intake 14 WSP 1449 A.J. Sweeney 2610 Sacramento River East Levee MA9 1756+76 Pipe Intake 12 WSP 1061 SASD SAFCA ID Levee Unit Station Category Subcategory Size (In) Material Permit Num Owner

Appendix J4.1
American River South ULDC
ARFCD Rodent Abatement Program
Revised October 2017. 1
Rodent Control &
Abatement Program
Burrowing animals can present a significant threat to levee integrity including increasing the potential for erosion and seepage. Animal control and damage repair must be routinely performed on levee systems to ensure functionality of the flood protection system. This document describes the rodent and animal control program administered by the American River Flood Control District (District). The program focus is in the control and removal of rodent populations from the District levee and drainage system, as well as the repair and mitigation of damage caused by rodent activity.

The District has a three pronged abatement program for the California Ground Squirrel. This program is timed throughout the year to make the most effective use of available methods for the best result and to provide the best levee integrity as the Sacramento area enters the flood season of November to April.

In the spring while the ground is moist, we begin by locating the burrows that are recently excavated by the squirrels as they awake from their winter hibernation. Pin flags mark the locations and we then begin using smoke bombs at each location to control the population. The holes are covered with a dirt filled sand bag that will be removed later in the year to insure that we grout all burrows. The locations are recorded with a handheld GPS to assist in the tracking of the problem areas and to facilitate reporting out usage to the Sacramento County Agriculture department.

Later in the summer when the soil is dry and smoke bombs lose their effectiveness, due to the porosity of the soil and also when the grass becomes dried out and a fire hazard, we switch to bait stations. The bait stations are specifically for the ground squirrel and are labeled with ARFCD contact information as well as all necessary information about the contents. The bait stations are secured to the ground with a steel strap and two 3 foot rebar stakes. Using the recorded data that indicates areas of concern, we position the bait stations and service them weekly until the squirrel problem is eliminated Additionally we use traps in some areas. Traps are generally set in the morning and removed late in the day. However in some areas they may be left overnight. They must be checked daily. A rolled oats horse feed called "Wet Cobb" is an effective non-poisonous bait. The trapped animals are euthanized in a CO2 containment device.

As we approach the rainy season we re-evaluate the burrows and pin flag the areas the need filling. Our District, using a specially designed Grout Trailer then fills each problem burrow with grout. When grouting, the District typically uses a grout mix made up of 9 parts cement, 1 part bentonite, and water added to achieve 8 to10 inches of slump. Grout is pumped at low pressures to avoid damaging the embankment, starting at the lowest rodent hole and proceeding up the levee slope. These locations are typically GPS tracked and approximate volume of grout is indicated with a color coded flagging system.

Photographs of the damage and repaired site are recorded as well. When larger damage to the levee occurs due to existing rodent holes and dens, the District will use District forces to excavate and compact Revised October 2017. 2
the damage, and rebuild the levee slope or crown. This requires additional levee fill and aggregate road base materials if the roadway is damaged.

The combination of these methods keeps the ground squirrel population reduced; however the proximity to the wide expanse of the American River Parkway, provides a constant supply of the squirrels looking for new places to live. They also benefit from the urban nature of our levee system and proliferate around areas of abundant food that is sometimes provided by the fruit and nut trees as well as gardens that are located near the levees. Even though the ARFCD program is extensive, due to the constant repopulation from adjacent areas, there will always be a need to stay vigilant to keep Sacramento Flood Safe.

Beavers also present a threat to levee integrity and their presence is found throughout the District’s levee systems. ARFCD monitors the levees for beavers. Dens in the banks or levee are repaired by the District.

Appendix J4.2
American River South ULDC
City of Sacramento Rodent
Abatement Program
Rodent Abatement & Damage Repair Standard
Operating Procedure (SOP)
Scope: Wastewater & Drainage Division
Procedure Contact
Mike Gonsalves
Utilities Operations and Maintenance Supervisor
Department of Utilities
[email protected]
Table of Contents

1. Background

2. Objective

3. Safety

4. Procedure

5. Reference Materials
Effective Date:

February 2020
Review Date:

April 29, 2024
Procedure: Rodent Abatement & Damage Repair SOP

1. Background:

Rodent abatement and damage repair consists of controlling the populations of California ground squirrel (Spermophilus beecheyi), and, to a much lesser extent, common muskrat (Ondatra zibethicus) and American beaver (Castor Canadensis), and then repairing the damage to levees caused by their burrowing. Botta’s pocket gopher (Thomomys bottae) also burrows in levees, but the burrows of this small rodent are shallow and generally do not cause structural damage. Most rodent holes are located in the upper portion of the levee and reach a depth of less than 8 feet in the first year. If these holes are not addressed at an early stage, the rodents may increase the size of the holes substantially and develop individual holes into colony networks of tunnels connecting multiple holes. Ground squirrel densities tend to be higher near an attractive food source, such as walnuts or other seed crops. Local farmers are often willing to participate in rodent eradication programs on their properties which minimize crop loss while also reducing impacts to the levees. Beaver dens have been identified in levees and can reach up to 1,100 square feet in size. The rodent burrows, tunnels, and dens can weaken the levee and associated roads; potentially cause a collapse or failure during high-water events or maintenance activities.

Prior to the year 2000, rodent holes were backfilled according to U.S. Army Corps of Engineers and State of California Code of Regulations Title 23 specifications, by dragging slopes or plugging the holes. However, after high-water years of 1993, 1995 and 1997, Management and City of Sacramento became concerned that this backfilling method was insufficient, leaving unseen voids that could weaken the levees over time. The City of Sacramento has implemented a levee grouting program. Observations made demonstrated that grouting was successful in reducing rodent hole voids within the levees. With the ongoing annual program, rodent hole voids gradually decreased from an average volume of 2.6 cubic feet to 0.4 cubic feet per each grout hole application. In the City of Sacramento Operations and Maintenance experience, grouting has proven to be the most cost-effective method for backfilling rodent holes. Figure 1 & Figure 2 shows typical rodent holes before and after grouting.

Rodents are controlled using baits poisoned with rodenticides, fumigation, trapping, or shooting. Burrows, tunnels, and dens are repaired by grouting or through excavation and backfill. Each of these activities is described in more detail below.

Procedure: Rodent Abatement & Damage Repair SOP
Figure 1- Typical rodent holes. Figure 2- Rodent holes after grouting.

2. Objective:

The purpose of the document is to provide systematic maintenance and damage repair method guidance for mitigating the effects of rodent burrows on program levees; thereby, contributing to levee integrity and minimizing the need for repairs such as reconstruction or slurry wall installation.

City of Sacramento shall maintain and operate the following levees on behalf of the State of California in accordance with Title 23 and Section 8361 of the Water code; City of Sacramento maintains the following levee maintenance areas:
• Sacramento River – Left Bank (LB) Levee
• Beach Lake – Land and Water Side Levee
• Morrison Creek – LB and Right Bank (RB) Levee
• Union House – LB and RB Levee
• Elder Creek – LB and RB Levee
• Florin Creek – LB and RB Levee
• South Elder Creek – LB and RB Levee
• Kamorian Levee – Land and Water Side Levee
Program Goals and Objectives:

The goal of the rodent abatement and damage repair program is to develop and implement a consistent plan that will protect the structural integrity of levees.

Procedure: Rodent Abatement & Damage Repair SOP
The objectives of the rodent abatement and damage repair program are as follows:
• Create and maintain consistent inspection criteria.
• Develop a consistent method for rodent eradication and backfilling rodent tunnels. • Report inspection findings and repairs performed annually.

3. Safety:

3.1 Personal Protective Equipment
Mandatory Personal Safety Equipment:

All standard Occupational Safety and Health Administration (OSHA) approved Personal Protective Equipment (PPE) related to this job includes but not limited to:
 hardhat
 safety toed work boots
 gloves
 safety glasses
 N95 rated dust masks
 hearing protection
 first aid kit
 safety vests
Hazards identified in the Job Hazard Analysis (JHA) will dictate which PPE is selected to complete the job. Refer to Department of Utilities PPE policy for general responsibilities and requirements.

3.2 Job Site Safety Equipment
Job site safety equipment will include, but is not limited to:
 Calibrated gas detector
 Safety cones
 Barricades and flags
 Signs or other traffic control devices.

Note: The City of Sacramento will provide safety equipment, where needed.

3.3 General Tools and Equipment
Tools and equipment include but are not limited to:

Procedure: Rodent Abatement & Damage Repair SOP
 Service Truck
 Grout trailer and pump
 Water truck (if needed, based on job)
 Various/miscellaneous hand tools
 Computerized Maintenance Management System (CMMS) enabled laptop

Please note: All emergency equipment (such as first aid kits, fire extinguishers, and reflectors) shall be accessible. Lead workers or designated personnel shall inspect first aid kits monthly to remove and replenish expired items.   Fire extinguishers shall be inspected monthly and documented on the monthly inspection tag. Lead workers or designated personnel shall ensure that hard or electronic copies of Safety Data Sheet (SDS) are immediately accessible.

4. Procedure:

Program Procedures
There are several methods of eradication that can be used that are discussed in detail below.

The method used will be the responsibility of the City of Sacramento Drainage Department Superintendent under the guidance of a licensed pest control advisor. All rodent control activates follow the guidelines and requirements established by the California Department of Pesticide Regulation, and the local County Agricultural Departments. It is the Superintendent’s responsibility to be informed and stay within the guidelines of all federal, State and county laws and regulations. The selected method must take into account any impact on the environment and non-target species as well as proximity to residential and other sensitive areas.

Major Tasks and Work Steps:

Prior to Leaving the Yard

1. After reviewing assigned work, the Lead Worker will brief crew on job specific information and necessary equipment to complete assigned work.

2. Inspect assigned vehicle(s) and equipment to be used for the day pursuant to established Vehicle Inspection Procedures following manufacturer guidelines. Lead Worker or Service Worker will make sure all proper PPE and necessary tools needed for the job they are doing that day are safely stored on the truck.

At the Job Site:

1. Before any work begins, each crew member in the work zone will be equipped with and utilize all PPE required for safe job performance.

This is strictly enforced at all times.

Procedure: Rodent Abatement & Damage Repair SOP

2. Lead Worker will analyze the job site, complete the JHA if required, have crews sign paperwork before beginning job, and determine whether traffic control is needed.

Complete a traffic plan before work begins. If it is determined that traffic control is needed, the area will be temporarily set up and controlled pursuant to parameters established by OSHA, Cal-OSHA, California Department of Transportation’s Manual on Uniform Traffic Control Devices, and any other such regulatory and/or safety measures established and enforced by the City of Sacramento. Traffic control will be continuously monitored by the Lead Worker and enhanced as needed to ensure safety (public, crew, and jobsite). The City Operator (311) and Control 10 will be advised of any complete street closures or detours, and the estimated time for re-opening. 7:00am – 3:30pm Control 10
(916) 808 - 2002
All Other Times 311
(916) 808 - 1500

3. Lead Worker will document work site specific information in the CMMS Work Order and/or Local Maintaining Agency (LMA) database.

4. Where required, before opening a manhole or vault, check the atmosphere according to the Gas Monitoring Procedure.
a. If anything unsafe or out of the ordinary is detected, cease activity and immediately contact Supervisor for instructions as to how to proceed. b. If nothing of concern is noted and it is safe to proceed, open the manhole using the proper tool.

See Gas Monitoring Procedure for specific details.

Operation Activity/Steps:

Inspection Procedure:

Levees are inspected by both the U.S. Army Corps of Engineers (USACE), California Department of Water Resources (DWR), and City of Sacramento. Inspection reports identify conditions that may pose a risk to a levee’s structural integrity, such as rodent damage. Four inspections are conducted annually by DWR and the City of Sacramento.

The first inspection is done in early spring to identify rodent activity and locations. This information is used to develop an eradication plan. The inspection must note proximity to residential areas, schools, or other sensitive areas to aide in determining treatment method.

Procedure: Rodent Abatement & Damage Repair SOP
The second inspection is conducted after weeds have been mowed, burned, or removed for a more complete assessment of the numbers and types of holes. Numbers of holes must be estimated or counted if practical.

The third inspection must be done in late fall after holes have been backfilled with grout to determine effectiveness of the overall program. This inspection may be done in conjunction with the joint annual inspection program.

The fourth inspection is a Flood Season winter inspection.

Timing of Rodent Abatement and Grouting:

Rodent abatement is primarily conducted during the rodent’s active season, (April through October), but can be done year-round depending on weather conditions, rodent type, activity, and other site-specific conditions. City of Sacramento Operations and Maintenance (O&M) Supervisor has observed that year-round abatement is significantly more effective at keeping rodent populations under control than seasonal abatement alone. Grouting is done between April and December, typically after eradications are complete and after herbaceous vegetation has been mowed or otherwise cleared. To ensure proper levee integrity, rodent damage repair may be required more frequently if damage is identified that may result in levee failure.

Timing is critical to the success of any rodent control program. Proper timing will increase effectiveness and minimize problems such as bait shyness, low mortality, and non-target kills.

Control efforts shall aim for at least 90 percent mortality. Any less is likely to result in a rapid regrowth of the population.

Baiting:

Baiting is generally the most effect rodent abatement method, particularly when dealing with large rodent populations. Rodenticides used carelessly are hazardous to people, livestock, and non-target wildlife. Many rodenticides are restricted use materials that require the applicator to (1) have a permit from the County Agricultural Commissioner's Office; (2) notify the commissioner's office 24 hours in advance of the planned work (by phoning in a Notice of Intent); and (3) either be a certified "qualified applicator" or be able to demonstrate to the commissioner's office possession of a satisfactory level or knowledge of the product to be used.

This only is applicable if restricted in California.

Bait Broadcasting:

Bait broadcasting is the technique used to apply acute toxicants directly to the ground in pellet form. Under certain circumstances, anticoagulant baits may also be broadcast. Ground squirrels are excellent foragers. They readily detect and pick up bait that is broadcast at the rate of three to five kernels per square foot. Non-target animals are far less likely to find the bait. Bait that is Procedure: Rodent Abatement & Damage Repair SOP
distributed more densely or placed in piles may not be taken by squirrels and, because it may be more noticeable and can be hazardous to other wildlife, livestock, and humans.

Bait may be broadcast by hand around each active burrow (spot halting) or, in high-density areas, may be broadcast in a swath by a mechanical spreader. Acute toxicants are lethal. Only a single feeding is needed to achieve the desired results. If they are applied repeatedly, bait shyness or poor bait acceptance can result, thereby lowering the mortality rate. When anticoagulant bait is used, the bait must be broadcast regularly (daily or on alternate days) to ensure that the supply will last for several days.

Bait Stations:

Bait stations are effective in eliminating any rodents that remain after fumigation or the use of acute toxicants and are the primary method used for rodent abatement. Because of the volume of material that bait stations require, this technique must be used exclusively for small, local ground squirrel colonies.

Bait stations are used only with anticoagulant baits. These may be formulated as loose grain, paraffin bait blocks, or pellets. The functions of the bait station are to protect the bait from moisture and dirt; to confine it to a small area, while giving the target species access to it; and to reduce or eliminate danger to children, pets, and non-target animals.

To be effective, anticoagulant baits must be placed repeatedly. Bait stations must be serviced regularly and kept full of fresh bait. They must be anchored to the ground or some solid structure to reduce spillage and vandalism. They must also be posted with warning notices that display the name of the toxicant, the concentration being used, and the name and telephone number of the maintaining agency.

Bait stations are typically not used in urban areas because of the danger to children and pets and the likelihood of vandalism.

Fumigation:

Fumigants are toxic gases or materials that, when placed in the burrow, generate a toxic gas.

Fumigation tends to be less effective than baiting and must only be used in certain cases. For example, areas frequented by the public and domestic animals may be better suited for fumigation techniques than the use of poisonous bait.

The most effective times of the year for fumigation is the breeding season (February through May) and after the first rain in the fall before the coldest weather begins. The soil must not be too dry. Soil that is excessively dry is likely to have cracks and other openings that will allow the gas to escape. The squirrels must be active (not hibernating or estivating) and must be in the burrows at the time of fumigation.

Procedure: Rodent Abatement & Damage Repair SOP
The general procedure for application is to place the fumigant in the burrow. When a fumigant is being used, it is followed with crumpled sheets of newspaper. The burrow is then sealed with dirt. All active burrows must be treated, and all burrows, both active and inactive, must be sealed with dirt. The burrow entrance must be marked for later grouting. Effectiveness for all forms of fumigants can be improved by treating the burrows again in 48 hours. City of Sacramento Operations & Maintenance only uses fumigants that are approved by the California Department of Pesticide Regulation.

Depredation:

Depredation methods include trapping and shooting. Trapping is used for small infestations of ground squirrels, gophers, muskrats, and beavers where it is impractical or unsafe to use bait or fumigants. Both live and kill traps may be used. Traps are placed at the burrow entrance, runways, or other locations frequented by rodents. Initially, traps must be placed unset to allow the rodents to become accustomed to them. After a few days, traps can be set and baited with grain, nuts, or other foods that attract squirrels. Kill traps must be anchored to prevent them from being carried off by predators. Rodents are euthanized, if necessary, and the carcasses are buried. City of Sacramento contracts with entities such as the U.S. Department of Agriculture Wildlife Services for depredation services. Several methods of depredation to control beaver populations have occurred in areas with damage to levees, including shooting and trapping. City of Sacramento does not conduct shooting, rather contracts for depredation services when necessary. Trapping and other depredation methods also require a permit from the California Department of Fish and Wildlife.

Grouting:

Grouting is a way of eliminating rodent tunnels by filling tunnel networks with a mixture of cement and bentonite. Grout must be administered only when permitted, in accordance with applicable Assurance Agreements or facility Maintenance Agreements, and all applicable State and federal laws and regulations. Some areas may require biological monitoring in accordance with above Federal and State agreements.

Environmental factors need to be considered when implementing grouting of rodent holes. In areas considered to be Giant Garter Snake habitat, grouting may be limited to certain times of year and outside temperatures. Burrowing owl dens must also be avoided, and no grouting can take place within 250 feet of the nest while it is occupied. Superintendents must coordinate with environmental support staff before initiating grouting operations.

Grouting operations are conducted by maintenance yard staff with the following equipment: a service truck, grout trailer (constructed to mix), and pump (Figure 3), along with another pickup truck to transport the crew of four to five people and any additional hand tools and materials.

Procedure: Rodent Abatement & Damage Repair SOP
1) Mix grout. The City of Sacramento has developed a grout mix and process that has proven to work well. The grout mix must consist of 85%-90% cement and 10%-15% Bentonite. This mix promotes flow ability and prevents shrinkage. The grout must be mixed with water to a consistency of an 8 to 10-inch slump or like the consistency of pancake batter.
2) Prepare for grout pumping. The grout must be pumped, using low-pressure, through a hose with 3- to 5-foot PVC pipe and have a control valve attached at the end (Figure 4 & 5).
3) Pump the Grout. Starting at the bottom of the levee slope, the pipe must be inserted into the rodent hole and then rags, or burlap material packed around the pipe to make a tight seal. The valve must be open, and grout pumped until there are signs of back pressure or grout starts flowing from another hole. a) If grout flows from another hole, then it must be plugged and then continue pumping grout in until back pressure develops. 4) When pressure develops, the valve is then closed, the pipe is removed, and the hole is sealed to prevent grout from running out.

Continue the process above, working from the levee bottom to top, until all holes are filled.

Figure 3- Grouting pump and mixing hoppers Figure 4- Grouting operation.

Figure 5- Hose with control valve
Procedure: Rodent Abatement & Damage Repair SOP
Excavation and Backfill:

Large dens or tunnel networks may require
excavation and backfill of the area to completely
repair the damage to the levee. Prior to excavation,
consult with core engineer team to determine if the
job can be done in-house or needs to be contracted
to a third party. If work is deemed to be done inhouse, refer to O&M manual and City of Sacramento IIPP Trenching & Excavation Safety Program.

Typically, an excavator is used to open up the den from the surface and to remove soil around the perimeter to make sure all tunnels are found; the excavated area is then backfilled with soil and compacted with a compacting wheel or equivalent compaction device. Up to 450 cubic yards (CY) of earthen material may be required to fill large beaver dens but typical repairs use approximately 20 to 30 CY. Excavation and backfill activities may use the following equipment, or equivalent: excavator, scraper, dozer, backhoe, front-end loader, sheep-foot or trampingfoot roller, smooth drum and compactor, haul trucks, pickup and flatbed trucks, and water truck.

Reporting:

The City of Sacramento Operations and Maintenance will maintain records of the number of the miles of abatement and damage repair activities that have been completed in each section of levee, as part of the annual LMA report. Beginning in 2017, all maintenance activities, including rodent abatement and damage repair will be tracked through a Trimble database and the CMMS work order program.

Before Leaving the Job Site:

1. Upon completion of work, return all equipment and tools to the proper location on the vehicle.

2. Clean the work area and properly close vaults and manholes as needed.

3. Secure load and conduct a walk around of the vehicles and equipment before leaving the job site.

4. Lock all gates and access points.

5. Remove the traffic-controlled area and break down traffic controls pursuant to parameters established by OSHA, Cal-OSHA, California Department of Transportation’s Manual on Uniform Traffic Control Devices, and any other such Procedure: Rodent Abatement & Damage Repair SOP
regulatory and/or safety measures established and enforced by the City of Sacramento.

6. Data entry can be completed by either crew member (Lead Worker or Service Worker). Data to capture includes completing all inspections, completing all equipment and labor time, and any comments (as noted above) that need to be entered. Enter all preliminary site assessments, add photos on the relevant Work Order. Once the Work Order has been completed properly, it can be put into “completed” status for Supervisor review and closing.

At the End of the Day:

1. All tools and equipment will be cleaned and stored in trucks in their proper places.

2. Complete maintenance on the grout pump

3. Fuel the vehicle prior to parking in the yard. (Including grout pump)

4. Once parked, inspect equipment and tools for problems. If any issues are found, report them to the Supervisor.

5. Clean out vehicle cab of litter and personal effects.

6. Fully restock truck.

7. Report any problems with jobs performed that day to the Supervisor. a. Immediately report equipment issues or repairs needed to the Supervisor.

8. Submit all paperwork to the Supervisor and complete all Work Orders at end of shift.

9. Research and prep the next day’s job(s).

5. Reference Materials:
 CMMS work order
 Red and Blue Border Damage report forms
 Job Hazard Analysis forms
 Manual on Uniform Traffic Control Devices
 City of Sacramento IIPP policy
 Equipment manufacturer guide
 Daily Vehicle Inspection Report
 Access to GIS application for maps
 Gas Monitor Standard Operating Procedure
Appendix J4.3
American River South ULDC
DWR Flood Management Office
Rodent Abatement Program
0 RodentAbatement/Damage
Repair and Rehabilitation Program
Division of Flood Management
Flood Maintenance Office
Revised June 2023
1 Table of Contents
Table of Contents and List of Figures.............................................................................. 1 Introduction ..................................................................................................................... 2 Authority ............................................................................................................... 2 Purpose ................................................................................................................ 2 Background .......................................................................................................... 3 Program Goals, Objectives, and Procedures .................................................................. 3 Program Goal and Objectives .............................................................................. 3 Program Procedures ........................................................................................... 4 Inspection Procedure................................................................................. 4 Timing of Rodent Abatement and Grouting................................................ 4 Baiting........................................................................................................ 5 Bait Broadcasting ...................................................................................... 5 Bait Stations .............................................................................................. 5 Fumigation................................................................................................. 5 Depredation ............................................................................................... 6 Grouting..................................................................................................... 6 Excavation and backfill .............................................................................. 7 Program Reporting and Funding ..................................................................................... 7 List of Figures
Figure 1, Sacramento Maintenance Yard levee responsibility map................................. 8 Figure 2, Sutter Maintenance Yard levee responsibility map .......................................... 9 Figure 3, Rodent hole pictures before and after grouting .............................................. 10 Figure 4, Grouting machinery, and typical operation..................................................... 11 2 Introduction
Authority
The authority for the Department of Water Resources (DWR) to maintain the Sacramento River Flood Control Project is included in Sections 8361 and 12878 of Division 5, Part 2 of the California Water Code. Maps of the Sacramento and Sutter Maintenance Yard’s areas of responsibility are shown in Figure 1 and Figure 2 respectively. Section 8361 of the Water Code states that DWR shall maintain and operate the following levees on behalf of the State of California.

Section 8361 of the Water Code states that DWR shall maintain and operate the following levees on behalf of the State of California.
▪ Sutter Bypass north of Nelson Slough – east levee
▪ Wadsworth Canal – both levees and channel
▪ Willow Slough – both levees and channel
▪ Putah Creek – both levees and channel
▪ Sacramento Bypass – both levees and channel
▪ Sacramento River adjoining Butte Basin – left bank levees ▪ Yolo Bypass from Fremont Weir to Cache Creek Settling Basin – west levee ▪ Yolo Bypass from Willow Slough to Putah Creek – west levee ▪ Yolo Bypass from Fremont Weir southerly two miles – east levee ▪ Feather River west bank from Sutter-Butte Canal headgate 2 miles southerly ▪ Tisdale Bypass – both levees and channel
In accordance with Section 12878 of the Water Code, DWR maintains the following levee maintenance areas (MA) on behalf of local agencies and/or the State of California. ▪ MA-1 Sacramento River West Levee, Moulton to Colusa
▪ MA- 3 Feather River West Levee, near Sutter Bypass
▪ MA-4 Sacramento River West Levee, Sacramento Weir to south of Bryte Bend ▪ MA- 5 Butte Creek Levees & Little Chico Creek Channel ▪ MA- 7 Feather River West Levee, below Oroville
▪ MA- 9 Sacramento River, Pocket Area
▪ MA-12 Colusa Drain Levee
▪ MA- 13 Cherokee Canal Levees
▪ MA-16 Feather River West Levee, near Live Oak
▪ MA-17 Middle Creek at Clear Lake
Purpose
The purpose of the document is to provide systematic maintenance and damage repair method guidance for mitigating the effects of rodent burrows on program levees, thereby contributing to levee integrity, and minimizing the need for wholesale earthwork reconstruction or slurry wall installation.
3 Background
Rodent abatement and damage repair consists of controlling the populations of California ground squirrel (Spermophilus beecheyi), and, to a much lesser extent, common muskrat (Ondatra zibethicus) and American beaver (Castor canadensis) and then repairing the damage to levees caused by their burrowing. Botta’s pocket gopher (Thomomys bottae) also burrows in levees, but the burrows of this small rodent are shallow and generally do not cause structural damage. Most rodent holes are in the upper portion of the levee and reach a depth of less than 8 feet in the first year. If these holes are not addressed at an early stage, the rodents may increase the size of the holes substantially and develop individual holes into colony networks of tunnels connecting multiple holes. Ground squirrel densities tend to be higher near an attractive food source, such as walnuts or other seed crops. Local farmers are often willing to participate in rodent eradication programs on their properties which minimize crop loss while also reducing impacts to the levees. Beaver dens have been identified in levees and can reach up to 1,100 square feet in size. The rodent burrows, tunnels, and dens can weaken the levee and associated roads, potentially causing a collapse or failure during high-water events or maintenance activities.

Prior to the year 2000, rodent holes were backfilled according to U.S. Army Corps of Engineers and State of California Code of Regulations Title 23 specifications, by dragging slopes or plugging the holes. However, after high-water years of 1993, 1995, and 1997, in which there were levee failures with signs of rodent activity as a contributing factor, DWR management became concerned that this backfilling method was insufficient, leaving unseen voids that could weaken the levees over time. In the year 2000, the DWR Sacramento Maintenance Yard implemented a levee grouting program. Records of grout volume and number of holes filled were collected for five years to determine the effectiveness of the program. Observations made demonstrated that grouting was successful in reducing rodent hole voids within the levees. With the ongoing annual program, rodent hole voids gradually decreased from an average volume of

2.6 cubic feet to 0.4 cubic feet per each grout hole application. In DWR’s experience, grouting has proven to be the most cost-effective method for backfilling rodent holes. Figure 3 shows typical rodent holes before and after grouting.

Rodents are controlled using baits poisoned with rodenticides, fumigation, trapping, or shooting.

Burrows, tunnels, and dens are repaired by grouting or through excavation and backfill. Each of these activities is described in more detail below.

Program Goals, Objectives, and Procedures
Program Goal and Objectives
The goal of the rodent abatement and damage repair program is to develop and implement a consistent plan that will protect the structural integrity of levees.

The objectives of the rodent abatement and damage repair program are as follows:
▪ Create and maintain consistent inspection criteria.
4 ▪ Develop a consistent method for rodent eradication and backfilling rodent tunnels. ▪ Report inspection findings and repairs performed, annually.

Program Procedures
There are several methods of eradication that can be used which are discussed in detail below.

The method used will be the responsibility of the DWR Maintenance Yard Superintendent under the guidance of a licensed pest control advisor. All rodent control activities follow the guidelines and requirements established by the California Department of Pesticide Regulation, and the local County Agricultural Departments. It is the Superintendent’s responsibility to be informed and stay within the guidelines of all federal, state, and county laws and regulations. The selected method must consider any impact on the environment and non-target species as well as proximity to residential and other sensitive areas.

Inspection Procedure
Levees are inspected by both the U.S. Army Corps of Engineers (USACE) and DWR. Inspection reports identify conditions that may pose a risk to a levee’s structural integrity, such as rodent damage. Three inspections are conducted annually by DWR.

The first inspection is done in early spring to identify rodent activity and locations. This information is used to develop an eradication plan. The inspection should note proximity to residential areas, schools, or other sensitive areas to aide in determining treatment method.

The second inspection is conducted after weeds have been mowed, burned, or removed for a more complete assessment of the numbers and types of holes. Numbers of holes should be estimated or counted if practical.

The third should be done in late fall after holes have been backfilled with grout to determine effectiveness of the overall program before flood season begins. This inspection may be done in conjunction with the joint annual inspection program.

Timing of Rodent Abatement and Grouting
Rodent abatement is primarily conducted during the rodent’s active season, (April through October), but can be done year-round depending on weather conditions, rodent type, activity, and other site-specific conditions. DWR superintendents have observed that year-round abatement is significantly more effective at keeping rodent populations under control than seasonal abatement alone. Grouting is done between April and December, typically after eradications are complete and after herbaceous vegetation has been mowed or otherwise cleared. To ensure proper levee integrity, rodent damage repair may be required more frequently if damage is identified that may result in levee failure.

Timing is critical to the success of any rodent control program. Proper timing will increase effectiveness and minimize problems such as bait shyness, low mortality, and non-target kills.

Control efforts should aim for at least 90 percent mortality. Any less is likely to result in a rapid regrowth of the population.
5 Baiting
Baiting is generally the most effective rodent abatement method, particularly when dealing with large rodent populations. Rodenticides used carelessly are hazardous to people, livestock, and non-target wildlife. Many rodenticides are restricted use materials that require the applicator to (1) have a permit from the county agricultural commissioner's office; (2) notify the commissioner's office 24 hours in advance of the planned work (by phoning in a Notice of Intent); and (3) either be a certified "qualified applicator," or be able to demonstrate a satisfactory level of knowledge about the product to be used to the commissioner's office.

Bait Broadcasting
Bait broadcasting is the technique used to apply acute toxicants, such as zinc phosphide, strychnine, and 1080 (sodium fluoroacetate). Under certain circumstances, anticoagulant baits may also be broadcast. Ground squirrels are excellent foragers. They readily detect and pick up bait that is broadcast at the rate of three to five kernels per square foot. Non-target animals are far less likely to find the bait. Bait that is distributed more densely or placed in piles may not be taken by squirrels, and because it may be more noticeable, it could be hazardous to other wildlife, livestock, and humans.

Bait may be broadcast by hand around each active burrow (spot halting) or, in high-density areas, may be broadcast in a swath by a mechanical spreader. Acute toxicants are lethal. Only a single feeding is needed to achieve the desired results. If they are applied repeatedly, bait shyness or poor bait acceptance can result, thereby lowering the mortality rate. When anticoagulant bait is used, the bait must be broadcast regularly (daily or on alternate days) to ensure that the supply will last for several days.

Bait stations
Bait stations are effective in eliminating any rodents that remain after fumigation or the use of acute toxicants. Because of the volume of material that bait stations require, this technique should be used exclusively for small, local, ground squirrel colonies.

Bait stations are used only with anticoagulant baits. These may be formulated as loose grain, paraffin bait blocks, or pellets. The functions of the bait station are to protect the bait from moisture and dirt; to confine it to a small area, while giving the target species access to it; and to reduce or eliminate danger to children, pets, and non-target animals.

To be effective, anticoagulant baits must be placed repeatedly. Bait stations must be serviced regularly and kept full of fresh bait. They should be anchored to the ground or some solid structure to reduce spillage and vandalism. They should also be posted with warning notices that displays the name of the toxicant, the concentration being used, and the name and telephone number of the maintaining agency.

Bait stations are typically not used in urban areas because of the danger to children, pets, and the likelihood of vandalism.
6 Fumigation
Fumigants are toxic gases or materials that generate a toxic gas when placed in a burrow.

Fumigation tends to be less effective than baiting and should only be used in certain cases. For example, areas frequented by the public and domestic animals may be better suited for fumigation techniques than the use of poisonous bait. Several fumigants are available for control of ground squirrels, including carbon monoxide, gas cartridges (smoke bombs), methyl bromide, and aluminum phosphide (Phostoxin).

The most effective times of year for fumigation are the breeding season (February through May) and after the first rain in the fall, before the colder weather begins. The soil should not be too dry. Soil that is excessively dry is likely to have cracks and other openings that will allow the gas to escape. The squirrels must be active (not hibernating or estivating) and must be in the burrows at the time of fumigation.

The general procedure for application is to place the fumigant in the burrow. When a fumigant is being used, it is followed with crumpled sheets of newspaper. The burrow is then sealed with earth. All active burrows should be treated, and all burrows, both active and inactive, should be sealed with earth. The burrow entrance should be marked for later grouting. Effectiveness for all forms of fumigants can be improved by treating the burrows again in 48 hours. DWR only uses fumigants that are approved by the California Department of Pesticide Regulation.

Depredation
Depredation methods include trapping and shooting. Trapping is used for small infestations of ground squirrels, gophers, muskrats, and beavers where it is impractical or unsafe to use bait or fumigants. Both live and kill traps may be used. Traps are placed at the burrow entrance, runways, or other locations frequented by rodents. Initially, traps should be placed unset to allow the rodents to become accustomed to them. After a few days, traps can be set and baited with grain, nuts, or other food that attracts squirrels and other rodents. Kill traps should be anchored to prevent them from being carried off by predators. Rodents are euthanized, if necessary, and the carcasses are buried. DWR contracts with entities such as the U.S.

Department of Agriculture Wildlife Services for depredation services. Several methods of depredation to control beaver populations have occurred in areas with damage to levees, including shooting and trapping. DWR does not conduct shooting, it contracts for depredation services when necessary. Trapping and other depredation methods also require a permit from the California Department of Fish and Wildlife.

Grouting
Grouting is a way of eliminating rodent tunnels by filling tunnel networks with a mixture of cement and bentonite. Grout should be administered only when permitted, in accordance with applicable Assurance Agreements or facility Maintenance Agreements, and all applicable state and federal laws and regulations.

DWR has developed a grout mix and process that has proven to work well. The grout mix should consist of 85%-90% cement and 10%-15% bentonite. This mix promotes flowability and prevents shrinkage. The grout should be mixed with water to a consistency of an 8-to-10-inch 7 slump or like a pancake batter. The grout should be pumped using low-pressure through a hose with 3-to-5-foot PVC pipe and control valve attached at the end (Figure 4). Starting at the bottom of the levee slope, the pipe should be inserted into the rodent hole and then rags, or burlap material packed around the pipe to make a tight seal. The valve should be opened, and grout pumped until there are signs of back pressure or grout starts flowing from another hole. If grout flows from another hole, it should be plugged, and pumping continued until back pressure develops. When pressure develops, the valve is then closed, the pipe is removed, and the hole is sealed to prevent grout from running out. This process of working from the levee bottom to top should be continued until all holes are filled. Grouting operations are conducted by maintenance yard staff with the following equipment: a trailer constructed to mix and pump the grout mixture on site (Figure 4) towed by a water truck, a haul truck, and two pickups or flatbed trucks to transport the crew of four to five people, and any additional hand tools or materials required.

Environmental factors need to be considered when implementing grouting of rodent holes. In areas considered to be Giant Garter Snake habitat, grouting may be limited to certain times of day, year, and outside temperatures. Burrowing owl dens should also be avoided and no grouting should take place within 250 feet of the nest while it is occupied. Superintendents should coordinate with environmental support staff before initiating grouting operations.

Excavation and Backfill
Large dens or tunnel networks may require excavation and backfill of the area to completely repair the damage to the levee. Typically, an excavator is used to open the den from the surface and to remove soil around the perimeter to make sure all tunnels are found. The excavated area is then backfilled with soil and compacted with a compacting wheel or equivalent compaction device. Up to 450 cubic yards (CY) of earthen material may be required to fill large beaver dens, but typical repairs use approximately 20 to 30 CY. Excavation and backfill activities may use the following equipment, or equivalent: excavator, scraper, dozer, backhoe, front-end loader, sheepfoot or tramping-foot roller, smooth drum and compactor, haul trucks, pickup and flatbed trucks, and water truck.

Program Reporting and Funding
The Maintenance Support Branch will maintain records of the number of the miles of abatement and damage repair activities that have been completed in each section of levee, as part of the monthly director’s report. Beginning in 2017, all FMO maintenance activities, including rodent abatement and damage repair have been tracked geospatially using the DWR’s FERIX program.

Program resources will be the responsibility of Superintendents of the DWR Sutter and Sacramento Maintenance Yards, using their staff of supervisorial and utility crafts worker personnel. The program and related equipment will be funded using the Sacramento and Sutter Yards’ approved General Fund and Maintenance Area funding. 8 Figures
Figure 1. Sacramento Maintenance Yard levee location map. 9 Figure 2. Sutter Maintenance Yard levee location map. 10 Figure 3. Rodent holes before and after being filled with grout. Moulton Weir, October 2014. 11 Figure 4. Grouting machinery & typical operation
Appendix J5.1
American River South ULDC
ARFCD Security Plan
ARFCD Security Plan
April 2025

SECURITY PLAN

1.0 Introduction
This Security Plan was developed to meet the requirements of the California Department of Water Resources Urban Levee Design Criteria, Section 7.18, issued in May 2012. It is intended to assist the local maintaining agency (LMA) in protecting the levee system “from acts of terrorism and other malicious or negligent acts.” This plan identifies the Security Director, security measures the LMA will undertake, and key assets and vulnerabilities within the levee system. Because site conditions and adjacent land uses change over time, this plan is a living document.

1.1 Security Director
The Security Director is the American River Flood Control District (ARFCD) General Manager and is responsible for the implementation of this plan. The Security Director is also responsible for establishing a chain of command for emergency operations. However, the chain of command for emergency operations is established in cooperation with ARFCD, the City of Sacramento, and the County of Sacramento and is described in the emergency planning documents for those agencies.

1.2 Review and Update
As indicated above, this is a living document. The Security Director shall review this plan on an annual basis and update as appropriate.

2.0 Components of Security
This Security Plan focuses on networked detection, physical security, and intrusion interdiction, each discussed below.

2.1 Networked Detection
Per ULDC, “(n)etworked detection provides for monitoring and reporting of security information between the levee maintaining agencies and the Intelligence Community.” Networked detection also includes promoting and improving awareness and reporting of suspicious activity by the neighboring community.

ARFCD relies heavily on its own routine patrols, Sacramento County Regional Park Rangers patrol along the waterside of the American River south levee, City of Sacramento Police Department and Sacramento County Sheriff’s Department patrol along the landside of the American River south levee to monitor and report unauthorized activities and/or suspicious behavior on the levees.

Because the ARFCD levee systems are in an urban area, and residential development is adjacent to the levees for a large extent, residents living adjacent to the levees frequently call ARFCD to ARFCD Security Plan
April 2025
report observations. Currently, ARFCD does not collect, store, or share data regarding the types of activities observed or monitored.

While ARFCD does not participate in Neighborhood Watch programs or other social media forums, it does promote an atmosphere of “see something, say something” through its annual newsletter and a special section devoted to community feedback on its website.

2.2 Physical Security
Per ULDC, “(p)hysical security is divided between deterrence, access control, intrusion detection, and levee performance alerting mechanisms.” One goal of physical security is to force intruders who enter restricted areas to do so knowingly, thereby establishing intent on the part of the intruders. However, as is the case for most levees, pedestrian and bicycle access to the levee is generally permitted to the public and is oftentimes encouraged for outdoor recreation activities. No public access, in the form of vehicular traffic of any form, is currently authorized along the American River south levee except for river access points near Discovery Park, 16th Street/Dreher Street, Howe Avenue, Watt Avenue, and Gristmill and no public access is authorized within any of the pumping plant facilities. Unauthorized motor vehicles are prohibited in all cases. In some cases, motor vehicle access is authorized if a transportation right-of-way is established on the levee crown.

Deterrence consists of visible security measures to create an atmosphere of vigilance and security. ARFCD patrols all its levees on a frequent basis. Sacramento County Regional Park Rangers patrol along the waterside of the American River south levee and City of Sacramento Police Department and Sacramento County Sheriff’s Department patrol along the landside of the levee in park areas, locations with high pedestrian traffic, and where unhoused populations are common. ARFCD also utilizes signage on gates indicating that unauthorized vehicular use is prohibited by law.

Access control is intended to stop, inhibit, or delay access by unauthorized persons. As previously indicated, access to the levee is generally open to the public, and therefore access controls are primarily in place to limit vehicular access. Welded steel gates, bollards, and large boulders are all used by the ARFCD to restrict access. Welded steel gates are used primarily at access points adjacent to public roads. Other types of gates are common on private lands adjacent to the levee. Bollards are used along bike trails, and large boulders are used in conjunction with gates to deter motor vehicle access to the levee slope. Access to penetrations (e.g., gates, valves, vaults) are typically locked to protect the public from injury and prevent unauthorized access and operation.

Intrusion detection consists of measures that enhance the ability to detect unauthorized intrusion.

Unauthorized (i.e., vehicular) access is uncommon, although evidence of use by off-road vehicles such as dirt bikes and ATVs are sometimes found. ARFCD does not utilize cameras to monitor its levees and relies primarily on patrols and observant residents to detect intrusion.

2.3 Intrusion Interdiction
Per ULDC, “(t)he goal of intrusion interdiction is to facilitate awareness of and investment in swift response to reported intrusions during high water or increased threat periods.” In most cases, ARFCD personnel will interdict intrusions it detects. If a situation is or appears to be hostile, ARFCD will alert the City of ARFCD Security Plan
April 2025
Sacramento Police Department or Sacramento County Sheriff’s Department. These Departments also interdicts most intrusions by the unhoused population on the landside of the levee. Sacramento County Regional Park Rangers provide support on the waterside of the levee.

2.4 Levee Performance
ULDC recommends that sensor systems be considered for detecting levee performance issues. Examples include pressure and motion sensors, gages, and piezometers. Piezometers measure pore pressure, or head, in levees and their foundations. These measurements can indicate how well a levee is performing related to under and through seepage. Table 1 provides a listing of levee performance devices. The location and monitoring of these devised is documented in the levee operation and maintenance (O&M) Manual.

3.0 Assets and Vulnerabilities
The flood control facilities under the purview of the ARFCD are not limited to levees. They comprise features that may or may not be owned and/or operated by ARFCD, such as closure structures, pumping stations, flood walls, etc. Table 1 lists the assets and vulnerabilities present through the ARFCD levee systems.

4.0 Security Measures
ARFCD employs a variety of measures to protect the levee systems from acts of terrorism and other malicious or negligent acts. Table 2 describes these measures.

ARFCD Security Plan
April 2025 4
Table 1 – Summary of Levee Performance Monitoring Devices and Locations

LEVEE SYSTEM LEVEE STATION DEVICE LOCATION COMMENT/PURPOSE American River South American River South
Levee
3263+94.86 Piezometer Levee Crown Monitor seepage
American River South American River South
Levee
3029+37.54 Piezometer Levee Crown Monitor seepage
American River South American River South
Levee
3029+37.54 Piezometer Levee Crown Monitor seepage
American River South American River South
Levee
3029+52.96 Piezometer Levee Crown Monitor seepage
American River South American River South
Levee
3029+52.96 Piezometer Levee Crown Monitor seepage
American River South American River South
Levee
4063+37 Relief Well Sump 159 Relieve seepage pressures
American River South American River South
Levee
4083+93.08 Piezometer Levee Crown Monitor seepage
ARFCD Security Plan
April 2025 5
Table 2. Assets and Vulnerabilities

FEATURE DESCRIPTION QUANTITY
FLOOD

CONTROL

FEATURE

OWNER OPERATOR
American River Levee System
American River South
Levee Earthen embankment ~ 10.5 miles Yes SSJDD ARFCD
Gated Access Points
Access points to the levee from paved public
roads:

American River South Levee
• Discovery Park/Jibboom Street (4 gates)
• Riverine Way (no gates/bollards)
• N 1th Street (1 gate)
• Hwy 160 (2 gates)
• 28th Street (1 gate)
• Sandburg Drive (1 gate)
• Carlson Drive (1 gate)
• H Street/J Street (no gates/bollards)
• University Drive (1 gate/bollard)
• Fairbairn WTP (3 gates)
• Howe Avenue River Access (4
gates/bollards)
• Glenbrook Park Access (1 gate)
• Watt Ave River Access (5
gates/bollards)
• D-10 Pump Station
(Woodman/Waterman Way (2
gates/bollards)
• Mira Del Rio (2 gates)
30 No ARFCD ARFCD
Penetration Mayhew Drain Closure Structure – Flap Gates and Sluice Gates 1 Yes Sacramento County
Sacramento
County
ARFCD Security Plan
April 2025 6
Pumping Station City Sump 111 1 No City of
Sacramento
City of
Sacramento
Pumping Station City Sump 10 1 No City of
Sacramento
City of
Sacramento
Pumping Station City Sump 155 1 No City of
Sacramento
City of
Sacramento
Pumping Station Fairbairn Water Treatment Plant 1 No City of Sacramento
City of
Sacramento
Pumping Station City Sump 91 1 No City of
Sacramento
City of
Sacramento
Pumping Station D-10 Manlove Drainage Pump Station 1 No Sacramento County
Sacramento
County
Pumping Station D-06 County Drainage Pump Station 1 No Sacramento County
Sacramento
County
ARFCD Security Plan
April 2025 7
Table 3 Security Measures

SECURITY MEASURES

SECURITY CATEGORIES

NETWORKED

DETECTION

PHYSICAL SECURITY

INTRUSION

INTERDICTION
LEVEE

PERFORMANCE
# DESCRIPTION

DETERRENCE
ACCESS

CONTROL

INTRUSION

DETECTION
1 Patrols, by ARFCD and local law enforcement, during routine and high water periods. X X X X X X 2 Coordinate and communicate with local law enforcement and other City/County staff (e.g., Park Rangers, Polic Department, etc.) in reporting suspicious activity to responsible agencies.

X X X
3 Coordinate and communicate with local law enforcement and other City/County staff (e.g., Park Rangers, Police Department, etc.) on apprehension of detected intruders in hostile or dangerous situations.

X X
4 Promote suspicious activity and levee performance awareness and reporting with neighboring communities through “See Something, Say Something.” X X X X 5 Promote suspicious activity awareness and reporting through annual reminders residents for continued vigilance, especially for those neighborhoods that front, are near, or at access points to the levee system.

X
6 Utilize signs at assets and vulnerabilities to establish intent and deter unauthorized activities. X
7 Utilize gates, bollards, fences, locks, and similar features to establish intent, and deter and prevent unauthorized access at assets and vulnerabilities. X X 8 Conduct recurring and frequent monitoring of existing deterrent measures to ensure feature is present and functioning properly (e.g., locks are present and working; signs are in place and legible).

X X X
9 Collection and recordation of levee performance data. X Appendix J5.2
American River South ULDC
City of Sacramento Security
Plan
9 LEVEE SECURITY PLAN
City of Sacramento 9.1
Comprehensive Flood Management Plan
May 2024

9.1 Introduction and Background
The Sacramento Region is considered to be one of -risk major metropolitan areas for hazardous flooding. One of the major risks of flooding in the City of Sacramento (City) stems from the possibility of the failure of area levees. As the City levee system is located within an urbanized area within a major metropolitan region, a security plan is required to protect infrastructure from terrorism and other malicious or negligent acts.

Although there have been no credible threats directed toward levees as potential targets, the Department of Homeland Security (DHS) advises that levee owners and operators should be aware of the possibility of an attack targeting levees and other flood risk reduction infrastructure. A Vulnerability Assessment (VA) conducted by the Sacramento Department of Utilities (DOU) as required by the Local Hazard Mitigation Plan (LHMP) found that, while the risk of a terrorist attack against DOU is unlikely, it is a possibility. The VA also found that DOU is at risk of malevolent threats by criminals and vandals. Enhancements to the security of DOU facilities, including the levee system, would provide benefits in the event of any type of attack (terrorism or otherwise). This chapter addresses current and proposed efforts to enhance the security of and identifies security personnel, responsibilities, resources, and measures.

This chapter also meets the requirements for a Levee Maintaining Agency (LMA) by California law for urban and urbanizing areas. The guidance for a Levee Security Plan is found in the California Department of Water Resources (DWR) May 2012 Urban Levee Design Criteria (ULDC). At the time of this writing, it was confirmed with DWR that the 2012 ULDC is the most current guidance on levee security.

Background
The levee system protecting the City from local creeks and the Sacramento and American Rivers is well over 100 miles long. Several dozen pump stations are incorporated into the system, pumping local storm drainage into the adjacent river or creek. Although there is significant security at the pump stations and lesser security in other places along the levees, the system is largely open to the public. Due to this openness, the levees are vulnerable to activities such as planting explosive devices or illegal digging on a levee to weaken its structure.

If a weakened levee were to fail during a significant storm event, the results could be catastrophic.

The geographic extent of levee failure is discussed in-depth within the City of Sacramento Annex F of the Sacramento County Local Hazard Mitigation Plan (LHMP) Update (September 2021), including impacts to critical facilities. The LHMP does not report any past occurrences of levee failure within the City due to terrorism or other intentional sabotage attacks.

City of Sacramento 9.2
Comprehensive Flood Management Plan
May 2024
The City is the LMA for a portion of the levee system located within the jurisdiction. Figure 9.1 shows the areas that the City is responsible for as the LMA, and other relevant levee system owners/management.

City of Sacramento 9.3
Comprehensive Flood Management Plan
May 2024
Figure 9.1 Levee Maintaining Agencies in the City of Sacramento Source: City of Sacramento Department of Utilities, 2024 City of Sacramento 9.4
Comprehensive Flood Management Plan
May 2024

9.2 Current Implementation Status
The ULDC requires each LMA to develop a levee security plan to protect urban and urbanized area levee systems from acts of terrorism and other malicious or negligent acts. The ULDC also provides guidance on developing this plan.

The City appointed the Security and Emergency Preparedness section of DOU to be the Security Director for this Levee Security Plan. The Security Director will manage the security planning efforts and establish a chain of command for emergency operations. The Security Director is also responsible for annual review and update of this plan as part of the Comprehensive Flood Management Plan (CFMP) annual progress report, which is led by the Floodplain Management staff in Engineering and Water Resources Division of DOU.

The ULDC criteria require agencies to consider and prioritize vulnerabilities and employ an array of security measures from four basic categories to address vulnerabilities.

These required security measures are:

Networked detection
Deterrence
Physical security
Intrusion interdiction during high threat periods
The ULDC criteria provide recommendations and options for consideration in each of the four areas. The Department of Utilities (DOU) already employs a number of these recommended security measures from the four basic categories:

Networked Detection provides for monitoring and reporting of security information between the levee maintaining agencies and the Intelligence Community, which is comprised of multiple federal, state, and local agencies. Recommended detection measures include improved personnel and public awareness, suspicious activity reporting, and integration with the existing Terrorism Liaison Officer (TLO) program.

The DOU Security and Emergency Preparedness Section currently participates in the California Water/Wastewater Agency Response Network (CalWARN) and Water Information Sharing and Analysis Center (WaterISAC), along with utilizing resources from the Sacramento Police Department (SPD) and the Sacramento Regional Terrorism Threat Assessment Center (RTTAC).

In addition, the Security Section routinely uses the National Suspicious Activity Reporting System (SAR) to report suspicious activity to the local fusion center for analysis and regularly provides awareness training to personnel on a number of topics including levee security and recognizing and reporting suspicious activity.

City of Sacramento 9.5
Comprehensive Flood Management Plan
May 2024
Deterrence consists of visible security measures such as signs, gates, visible patrols, and controlled access to levees and associated critical facilities that create an atmosphere of vigilance and security. These measures are designed to hinder criminal activity and maximize the potential for security and law enforcement intervention.

DOU currently uses a combination of patrols, signs, and gates that prohibit trespassing at critical facilities and prohibit motor vehicles at all gated accesses. DOU personnel patrol the levees on a daily basis during normal conditions to monitor levee conditions, suspicious activity, and the conditions of signs, locks and gates. During high water levels or elevated threat periods, the levees are patrolled continuously. Contract private security patrols are also used at critical sites to deter and report suspicious or criminal activity.

Physical Security is divided between deterrence (discussed above), access control, intrusion detection, and levee performance alerting mechanisms.

Access Control
DOU levee access controls are generally to be limited to restricting motor vehicle access.

Non-vehicular public access along levees is not considered to be a security problem, except at specific critical locations such as treatment plants or sumps. DOU currently uses a combination of physical security measures (signs, fences, locks, lighting, and security patrols) to stop, inhibit, or delay access by unauthorized persons. The goal of access control is to force intruders who enter restricted areas to do so knowingly through unauthorized means, thereby limiting the number of unintentional intruders and establishing intent on the part of intruders.

Intrusion Detection
DOU currently uses intrusion alarms and patrols by DOU personnel and contract security guards to detect unauthorized intrusion. DOU has high water levee patrolling protocols that provide for the safety of patrollers and emphasize detection of vehicular trespass.

Levee Performance
DOU currently uses water elevation sensors and levee patrols to monitor levee performance. The elevation sensors can be remotely monitored through the Sac City Alert 2 System. In addition, the National Weather Service monitors several gauges on both the Sacramento and American Rivers; unusual water levels reported at gauges would warrant and prompt further investigation.

Intrusion Interdiction capabilities are determined by the preparedness and willingness of the local first responders. The goal is to facilitate awareness of and investment in swift response to reported intrusions during high water or increased threat periods.

DOU regularly participates in seminars, workshops, and tabletop exercises with local agencies to familiarize, update and validate the security and evacuation plans related to levee security and breaches. The City anticipates participation in future exercises and continued emergency training.

City of Sacramento 9.6
Comprehensive Flood Management Plan
May 2024

9.3 Implementation Strategies and Action items
The following implementation strategies outline both long-term DOU activities and short-term activities within the next five years to improve levee security and reduce flood risk from levee failure caused by acts of terrorism and other malicious or negligent acts.

Given the challenge of increasing security for such a large and open system, the general goals of this risk reduction tool would be to: (1) increase public awareness of levee safety and security issues and develop a coordinated partnership with the community to report suspicious activity/intrusions to the appropriate authorities; and (2) Provide incremental increases in levee safety , and
to detect unauthorized intrusion at critical sites.

Meeting these goals would involve promoting increased public and local agency awareness of the nature of the threats to the levee system. These strategies would also require the identification and acquisition of sensor systems designed to remotely detect levee penetrations and performance problems, and the addition of monitoring systems to enhance critical sites.

Implementation Actions (2024 - 2029)
Over the next five years, progress toward these general goals could be achieved by taking the following actions:

1. Incorporate levee security risk information in flood risk outreach material and presentations. The ULDC recommends that LMAs should establish a coordinated network partnership consisting of the public and community entities or citizens who have access to the levee and to report suspicious activity/intrusions to the appropriate authorities. Currently, the City conducts flood risk outreach including a public outreach event known as the Highwater Jamboree.

This public event hosted by the Department of Utilities includes outreach and education on levee safety, security and emergency preparedness. Levee safety and security could also be integrated into existing City of Sacramento Mitigation Education, Outreach and Partnerships as identified in the LHMP.
and terrorism-related crime. Presentations to the public, which include leaders in the community, on such topics as disaster preparedness could also include information on levee safety and security.

Security information should also include how to report suspicious activity to local law enforcement.

2. Add additional sensor systems related to levee penetration and performance. The ULDC recommends that security measures related to levee penetrations and performance be considered, and recommends that sensor systems should be considered for detecting problems, remotely if practical. Such systems may include levee movement sensors, water pressure sensors, motion City of Sacramento 9.7
Comprehensive Flood Management Plan
May 2024
sensors, disturbance detection cables, and water flow detectors, such as water level gauges and piezometers. DOU currently only uses water level gauges to monitor river and creek levels, and these additional types of sensors would be used to identify potential levee performance problems.

3. Enhance intrusion detection capability. The ULDC recommends that LMAs consider using security systems such as cameras, motion detectors, and alarms at critical nodes, especially during high water or periods of increased threat. DOU currently has only alarms at critical nodes, and the addition of cameras and motion detectors at these sites would greatly enhance the ability to detect unauthorized intrusion.

4. Annual review and update. The Security Director is also responsible for annual review and update of this plan as part of CFMP annual progress report, which is led by the Floodplain Management staff in Engineering and Water Resources Division of DOU.

The overall 5-year goal is to improve levee security and reduce flood risk from levee failure caused by acts of terrorism and other malicious or negligent acts.

Table 9.1 Levee Security Action Items
Action Item Responsible Department Schedule

1. Incorporate levee security risk
information in flood risk outreach
material and presentations
Engineering Services, Security and
Emergency Preparedness
Short term and ongoing

2. Add additional sensor systems
related to levee penetration and
performance
Operations and Maintenance,
Engineering Services, Business
Services, Security and Emergency
Preparedness
Short term and ongoing

3. Enhance intrusion detection
capability
Operations and Maintenance,
Engineering Services, Business
Services, Security and Emergency
Preparedness
Short term and ongoing

4. Annual Review and Update Engineering Services, Security and Emergency Preparedness
Short term and ongoing

1. Incorporate levee security risk information in flood risk outreach material Issue/Background Statement: Incorporate levee security risk information into flood risk outreach material.

Implementation Strategy: Currently the City conducts flood risk outreach and presentations on topics such as disaster preparedness
NFIP and CRS requirements. The program could be expanded relatively easily to include outreach City of Sacramento 9.8
Comprehensive Flood Management Plan
May 2024
and education on levee safety and security. Levee safety and security could also be integrated into existing City of Sacramento Mitigation Education, Outreach and Partnerships as identified in the LHMP. The LHMP Section F.6.4 identifies several existing outreach programs, including the Be Flood Ready brochure/billboard, dam brochure, storm preparation outreach, Sacramento Ready, and Flood Watch Newsletter.
awareness of the signs of terrorism and
terrorism-related crime. Presentations to the public, which includes leaders in the community, on such topics as disaster preparedness could also include information on levee safety and security.

Security information should also include how to report suspicious activity to local law enforcement.

Responsible Office: DOU - Engineering Services, Business Services, Security and Emergency Preparedness
Potential Funding: City staff
Schedule: Short term and ongoing

2. Add additional sensor systems related to levee penetration and performance.

Issue/Background Statement: Pursue grant funding opportunities from FEMA, DHS, DWR, and the State Water Resources Control Board for security improvement projects.

Implementation Strategy: Develop a grant program that will identify and pursue grant programs that will average $500,000 per year to augment other funds for additional sensor systems related to levee penetration and performance. One full-time City employee or commensurate level of effort from a consultant will be needed.

Responsible Office: DOU - Operations and Maintenance and/or Engineering Services Potential Funding: City staff
Schedule: Short term and ongoing

3. Enhance intrusion detection capability
Issue/Background Statement: Pursue grant funding opportunities from FEMA, DWR, and the State Water Resources Control Board for enhanced intrusion detection projects.

Implementation Strategy: Develop a grant program that will identify and pursue grant programs that will average $500,000 per year to augment other funds for enhanced intrusion detection projects. One full-time City employee or commensurate level of effort from a consultant will be needed.

City of Sacramento 9.9
Comprehensive Flood Management Plan
May 2024
Responsible Office: DOU- Security and Emergency Preparedness Potential Funding: City staff
Schedule: Short term and ongoing

4. Annual Review and Plan Update
Issue/Background Statement: The Security Director is responsible for annual review and update of this plan.

Implementation Strategy: DOU Security and Emergency Preparedness Section will annually review and update this plan and include it as part of CFMP annual progress report, which is led by the Floodplain Management staff in DOU Engineering and Water Resources Division.

Responsible Office: DOU- Security and Emergency Preparedness, Engineering Services Potential Funding: City staff
Schedule: Short term and ongoing
Table 1 Summary Of Levee Performance Monitoring Devices And Locations Levee System
Sacramento River Left Bank
Sacramento River Left Bank Sacramento River Left Bank Sacramento River Left Bank Sacramento River Left Bank Sacramento River Left Bank Sacramento River Left Bank Sacramento River Left Bank Sacramento River Left Bank Sacramento River Left Bank Sacramento River Left Bank Levee System
Lower Morrison CreekBeach Lake LeveeBeach Lake LeveeBeach Lake Levee Beach Lake 38.457503 -121.486678 Ending at RW50 Relieves Seepage Morrison Creek 38.470128 -121.462890 Train Trestle Monitor Creek Level Beach Lake 38.458506 -121.478430 Sump 89 Monitor Beach Lake Level Staff GuageStaff Guage
1 of 50 Relief Wells
50 of 50 Relief Wells
Levee Lat/Long Location Comment/Purpose
Beach Lake 38.460110 -121.467669 Starting at RW1 Relieves Seepage Beach Lake Levee/Lower Morrison Creek
Device
Sacramento River Levee 58.6 / 1.406 Pioneer Reservior Relieve seepage pressures Relief Well 6Sacramento River Levee 59.8 / .139 Jibboom @ Rail Yards Staff Guage & TelemetrySacramento River Levee 58.6 / 1.406 Pioneer Reservior Relieve seepage pressures I St Guage
Relief Well 4
Sacramento River Levee 58.6 / 1.406 Pioneer Reservior Relieve seepage pressuresSacramento River Levee 58.5 / 1.525 Pioneer Reservior Relieve seepage pressures Relief Well 5 Relief Well 2
Sacramento River Levee 58.6 / 1.406 Pioneer Reservior Relieve seepage pressuresSacramento River Levee 56.7 / 3.187 Levee Crown Monitor seepage Relief Well 3 Piezometer
Sacramento River Levee 58.5 / 1.525 Pioneer Reservior Relieve seepage pressuresSacramento River Levee 57.1 / 2.80 Levee Crown Monitor seepage Relief Well 1
Sacramento River Levee Piezometer
Piezometer
Sacramento River Levee 56.7 / 3.187 Levee Crown Monitor seepage Security Plan - Critical Infrastructure
Sacramento River Levee System
Levee River/Levee Mile Device Location Comment/Purpose

57.1 / 2.80 Levee Crown Monitor seepage
Piezometer
Table 2 Assets and Vulnerabilities
Feature
Sacramento River Left Bank
Pumping StationPumping StationPumping StationPumping StationPumping Station Feature
Lower Morrison Creek
Beach Lake LeveeBeach Lake Levee
Gated Access Points
Morrison Creek
Pumping StationPumping Station
City of Sacramento
Consumnes River Blvd (2 gates) 2 City of Sacramento City of SacramentoDelta Shores Circle (1 gate) 1 City of Sacramento City of Sacramento NoNo Beach Lake
Lower Morrison Creek West Bank @ Train Tracks
(Stop Log Structure) Closure Structure
Lower Morrison Creek West Bank On
East and West Side Of Train Tracks (2 Sluice Gates)
1 Yes City of Sacramento
Security Plan - Critical Infrastructure
Sacramento River Levee System
YesYesYes
Earthen embankment
Quantity Flood Control Feature

2.80 Miles City of Sacramento City Of Sacramento
Description Owner Operator
6 City of Sacramento City Of Sacramento
Flood Wall
City of SacramentoCity of SacramentoCity of SacramentoCity of Sacramento City of Sacramento
.85 Miles City of Sacramento City Of Sacramento
Front St @ Promenade (Bollards)
Water Front Old Sacramento (Flood Gates)
1 City of Sacramento City of Sacramento
Broadway @ Lowrider Ln (1 gate)Sutterville Overpass (1 gate)Jibboom @ Railyards (Bollards) Access point to levee from paved public roads
Ramp Wy @ Front St (1 gate)
NoNoNoNoNo
111
City Sump 2 1 City of Sacramento City Of Sacramento
City Sump 52 1 City of Sacramento City Of Sacramento
YesYes
City Sump 163 City of Sacramento City Of Sacramento
Cal Trans Sump (O St) Cal Trans Cal Trans
11 YesYes
Beach Lake Levee/Lower Morrison Creek
Earthen Embankment 2.09 Miles Sacramento City/County City of Sacramento Earthen Embankment/Floodwall .29 Miles Sacramento City/County City of Sacramento Description Quantity Owner Operator
Earthen Embankment 1.26 Miles City of Sacramento City of Sacramento Flood Control Feature
YesYesYes
Access point to levee from paved public roads
Mack Rd (2 gates) 2 City of Sacramento City of SacramentoNo Sump 89 1 City of Sacramento City of Sacramento
Sweeny Ranch Pump House 1 Sacramento County Sacramento County End of Ann Arbor Way (2 gates) 2 City of Sacramento City of SacramentoDelta Shores Shopping Center (2 gates) 2 City of Sacramento City of Sacramento NoNo
YesYes
2 Yes City of Sacramento City of Sacramento
City Sump 1 1 Yes City of Sacramento City Of Sacramento City of Sacramento
Closure Structure
Pioneer Reservior (Sluice Gate) 1
City of SacramentoCity of SacramentoCity of Sacramento
Yes
City Of Sacramento
River Bike Trail From Sump 2 (Sluice Gate) 2 City of Sacramento City Of Sacramento Pioneer Reservior (Internal mechanical closure) 1 City of Sacramento City Of Sacramento Yes Yes
1 Gated Access Points
Table 3 Levee Penetrations
Levee System Levee Mile Owner
Sacramento River Left Bank 0.061 PG&ESacramento River Left Bank 0.071 Peter Kiewit SonsSacramento River Left Bank 0.120 City of SacramentoSacramento River Left Bank 0.120 City of SacramentoSacramento River Left Bank 0.140 City of SacramentoSacramento River Left Bank 0.142 City of SacramentoSacramento River Left Bank 0.221 City of SacramentoSacramento River Left Bank 0.221 City of SacramentoSacramento River Left Bank 0.311 City of SacramentoSacramento River Left Bank 0.400 PT&TSacramento River Left Bank 0.419 City of SacramentoSacramento River Left Bank 0.421 City of SacramentoSacramento River Left Bank 0.498 City of SacramentoSacramento River Left Bank 0.569 City of SacramentoSacramento River Left Bank 0.585 City of SacramentoSacramento River Left Bank 0.669 City of SacramentoSacramento River Left Bank 0.735 City of SacramentoSacramento River Left Bank 0.811 City of SacramentoSacramento River Left Bank 0.843 Cal TransSacramento River Left Bank 0.905 Cal TransSacramento River Left Bank 0.978 City of SacramentoSacramento River Left Bank 0.984 Cal TransSacramento River Left Bank 0.985 Cal TransSacramento River Left Bank 1.228 City of SacramentoSacramento River Left Bank 1.235 City of SacramentoSacramento River Left Bank 1.380 PG&ESacramento River Left Bank 1.397 City of SacramentoSacramento River Left Bank 1.406 City of SacramentoSacramento River Left Bank 1.408 City of SacramentoSacramento River Left Bank 1.426 City of SacramentoSacramento River Left Bank 1.429 City of SacramentoSacramento River Left Bank 1.590 PG&ESacramento River Left Bank 1.611 PG&E 8" Drainage Pipe 38.571976 -121.513060
42" Intake Pipe
120" RCP Discharge Pipe
12" Gas Line
24" Natural Gas Line

38.571790 -121.51332338.571776 -121.51336438.570075 -121.515402 Sacramento River Levee 38.569806 -121.515546Sacramento River LeveeSacramento River Levee Location

38.589902 -121.50514238.589760 -121.50510638.589069 -121.50497438.589069 -121.50497438.588768 -121.50489138.588738 -121.50489138.587615 -121.50503438.587615 -121.50503438.586321 -121.50505838.585065 -121.50545638.584794 -121.50554838.584762 -121.50555638.583693 -121.50590938.572019 -121.513082 Sacramento River LeveeSacramento River Levee

38.579353 -121.50756038.578906 -121.50775038.578049 -121.50812138.577051 -121.50857838.576976 -121.50861338.582700 -121.50626638.582482 -121.50634638.581332 -121.50685338.580413 -121.507166 24" Pipe (Abandoned)40" Pipe (Abandoned)
8" Gas Line (Abandoned)
8" Pipe (Abandoned)
60" Drainage Pipe
30" Concrete Drainage Pipe
3x30" Drainage Pipe
16" Drainage Pipe
36" RCP Pipe (Abandoned)26" RCP Pipe (Abandoned)
10" VCP Drainage Pipe
10" Drainage Pipe
Fire Hydrant
15" CMP Drainage Pipe
6" Drainage Pipe

38.576969 -121.50863638.573981 -121.51094838.573901 -121.51102538.572499 -121.51249638.572087 -121.512941 24" Steel Drainage Pipe
Armored Submarine Cable
10" CMP Drainage Pipe
18" Drainage Pipe
8" Drainage Pipe
Sacramento River Levee
Security Plan - Critical Infrastructure
Sacramento River Levee System
Levee Penetration
18" CMP (Abandon)
Sacramento River LeveeSacramento River Levee 12" Steel Gas Line 4x42" Steel Discharge Pipe
12" Steel Discharge Pipe
42" Water Main
42" Air Release Valve
Abandoned Building
12" Steel Drainage Pipe
Sacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River Levee

Table 3 Levee Penetrations
Levee System Levee Mile Owner Levee Penetration Location Sacramento River Left Bank 1.637 Standard Oil Co.Sacramento River Left Bank 1.637 Standard Oil Co.Sacramento River Left Bank 1.657 UnknownSacramento River Left Bank 1.657 UnknownSacramento River Left Bank 1.704 Conoco PhillipsSacramento River Left Bank 1.736 ToscoSacramento River Left Bank 1.737 PG&ESacramento River Left Bank 1.741 City of SacramentoSacramento River Left Bank 1.740 UnknownSacramento River Left Bank 1.746 Southern Pacific Sacramento River Left Bank 1.747 Southern Pacific Sacramento River Left Bank 1.757 Phillips PatroliumSacramento River Left Bank 1.783 Standard Oil Co.Sacramento River Left Bank 1.788 City of SacramentoSacramento River Left Bank 1.873 City of SacramentoSacramento River Left Bank 1.873 City of SacramentoSacramento River Left Bank 1.946 UnknownSacramento River Left Bank 1.947 City of SacramentoSacramento River Left Bank 1.955 City of SacramentoSacramento River Left Bank 1.965 UnknownSacramento River Left Bank 2.294 City of SacramentoSacramento River Left Bank 2.340 Chevron PipelineSacramento River Left Bank 2.429 City of SacramentoSacramento River Left Bank 2.893 City of SacramentoSacramento River Left Bank 2.893 SmudSacramento River Left Bank 2.894 City of SacramentoSacramento River Left Bank 2.993 DWRSacramento River Left Bank 3.187 City of SacramentoSacramento River Left Bank 3.189 City of SacramentoSacramento River Left Bank 3.304 UnknownSacramento River Left Bank 3.304 16" Pipe (Abandoned) 38.546058 -121.510120Sacramento River Levee Unknown Sacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River Levee 12" Pipe (Abandoned) 38.546058 -121.510119 4xWater Wells (Abandoned) 38.550453 -121.511213
84" RCP Discharge Pipe (Sump 2)
96" CMP Concrete Encased Discharge Pipe

38.547737 -121.51028138.547707 -121.51027738.567888 -121.51608238.567888 -121.51608238.567759 -121.51600738.567352 -121.51610238.567299 -121.516169 Sacramento River Levee
10" Steel Gas Line
4x10" Fuel Lines
8" Steel Oil Product Line
Sacramento River Levee 6" Sewer Forced Main 38.566082 -121.516301

38.551797 -121.51185938.560088 -121.51515038.559451 -121.51489438.558224 -121.51436538.551814 -121.51185538.551808 -121.51185038.566082 -121.51630238.565020 -121.51628638.565005 -121.51628638.564894 -121.51626138.564771 -121.516187 20" Casing Well w/12" Inner Casing 125' Deep
6" Steel Electrical Conduit
30" Discharge Pipe (Ranney Collector)
Sacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River Levee 8" PVC Drainage Pipe
48" Concrete Utility Vault
8" PVC Water Main
8" PVC Drainage Pipe
48" Concrete Utility Vault
18" Drainage Pipe
8" Steel Oil Product Line
18" Drainage Pipe
Sacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River Levee 3" Gas Main
20" Steel Pipe (Sleeved w/12" Pipe)
12" Unknown Pipe
Sacramento River LeveeSacramento River Levee
8" Water Main
10" Steel Gas Line

38.567981 -121.51607738.567980 -121.516088
6" Gas Pipe
18" Gas Pipe
8" Pipe (Sleeved w/6" Pipe)
10" Pipe (Sleeved w/2" Pipe)
Extraction Well
8x2"-16" Pipes (Abandoned)
Sacramento River LeveeSacramento River LeveeSacramento River Levee Sacramento River LeveeSacramento River LeveeSacramento River LeveeSacramento River Levee

38.568032 -121.51606938.568026 -121.516070

38.569442 -121.51568138.569442 -121.51568138.569166 -121.51578938.569166 -121.51578938.568491 -121.515977