Special Status Plant Survey for the Limonite Avenue

Special Status Plant Survey for the Limonite Avenue Widening – Bain to Homestead Project Assessor Parcel Numbers: 162-200-008 to -011, 162-200-014, 162-200-022, 162- 200-023, 162-200-026, 162-200-027, 162-210-004, 162-210-011, 162-210-012, 162- 220-001, 162-220-002, 162-220-010, 162-220-011, 162-220-014, 162-220-016, 162- 220-017, 162-230-001, 162-301-007 (Impact Area: 18.17 Acres; Total Area Surveyed: 18.17 Acres) in the City of Jurupa Valley, Riverside County, California Corona North and Riverside West USGS 7.5-Minute Series Maps Township 2 South, Range 6 West, Sections 22 and 27

Prepared For: Chase Keys, PE City of Jurupa Valley 8930 Limonite Avenue Jurupa Valley, California 92509 (951) 332-6464 x235 [email protected]

Prepared By: Psomas 3 Hutton Centre Drive, Suite 200 Santa Ana, CA 92707 Kent Norton [email protected]

Principal Investigator: Psomas 3 Hutton Centre Drive, Suite 200 Santa Ana, California 92707 Allison D. Rudalevige [email protected]

Surveys Conducted By: Allison D. Rudalevige Lindsay A. Messett

Surveys Conducted On: April 24 and July 24, 2019

Report Date: August 19, 2019

CERTIFICATION

I hereby certify that the statements furnished above and in the attached exhibits present the data and information required for this biological evaluation, and that the facts, statements, and information presented are true and correct to the best of my knowledge and belief.

DATE: ___08/20/19____ SIGNED: ______

August 20, 2019

Mr. Chase Keys VIA EMAIL City of Jurupa Valley [email protected] 8930 Limonite Avenue Jurupa Valley, California 92509

Subject: Special Status Plant Survey for Limonite Avenue Widening - Bain to Homestead Project Site, City of Jurupa Valley, California

Dear Mr. Keys:

This Letter Report presents the findings of special status plant surveys conducted for the Limonite Avenue Widening – Bain to Homestead Project (hereinafter referred to as “the proposed Project”) located in the City of Jurupa Valley in Riverside County, California. The proposed Project is located within the Western Riverside County Multiple Species Habitat Conservation Plan (MSHCP) area; this report has been prepared in accordance with the MSHCP guidelines. The original Study Area for the proposed Project included a 250-foot buffer around Limonite Avenue; the survey area for special status plant species is limited to the limits of ground disturbance and temporary construction areas.

PROJECT LOCATION AND DESCRIPTION

The proposed Project is located along Limonite Avenue approximately 2.4 miles east of Interstate 15 (I-15) and 1.0 mile west of Van Buren Avenue (Exhibit 1). The proposed Project site is depicted on the U.S. Geological Survey’s (USGS) Corona North and Riverside West 7.5-minute quadrangles at Township 2 South, Range 6 West, and portions of Sections 22 and 27 of the San Bernardino Base and Meridian (SBBM) (Exhibit 2).

The proposed Project consists of widening Limonite Avenue from Bain Street on the west to Homestead Street on the east, a distance of approximately 3,900 feet (Attachment A)

EXISTING CONDITIONS

The proposed Project is located between 1,000 feet and 1,700 feet north of the Santa Ana River. Topography is relatively flat, with most of the lots graded. Existing elevations along the roadway range from 679 feet above mean sea level (msl) at Bain Street to 695 feet above msl at Homestead Street. Soils in the area consist of Gorgonio loamy sand, deep, 2 to 8 percent slopes; Grangeville fine sandy loam, drained, 0 to 2 percent slopes; Hilmar loamy sand, 0 to 2 percent slopes, eroded; Monserate sandy loam, 0 to 5 percent slopes; Monserate sandy loam, 8 to 15 percent slopes, eroded; Monserate sandy loam, 15 to 25 percent slopes, severely eroded; Ramona sandy loam, 0 to 5 percent 3 Hutton Centre Drive slopes, severely eroded; Ramona sandy loam, 5 to 8 percent slopes, eroded; and Terrace Suite 200 escarpments (Exhibit 3). Santa Ana, CA 92707

Tel 714.751.7373 Fax 714.545.8883 www.Psomas.com

Mr. Chase Keys August 20, 2019 Page 2

Vegetation and other areas along Limonite Avenue consist of non-native grassland, ruderal, riparian scrub, ornamental/mulefat scrub, flood control channel, lined basin, disturbed, livestock feedyard, parks/ornamental, developed/ornamental, and developed. Low density residential development, undeveloped fallow fields, and small livestock operations are located to the north of the proposed Project. A golf course, wastewater treatment facility, and various other institutional and commercial properties are located to the south.

METHODS

Botanical surveys were floristic in nature and consistent with the protocols created by the California Department of Fish and Wildlife (CDFW 2018). Prior to the field surveys, a literature search was updated to identify special status plant species reported from the vicinity of the proposed Project area. Sources reviewed included the California Native Plant Society’s (CNPS’) Inventory of Rare and Endangered Plants (CNPS 2019) and the CDFW’s California Natural Diversity Database (CNDDB) (CDFW 2019a); the search included the USGS Corona North, Fontana, Guasti, and Riverside West 7.5-minute quadrangles. The Regional Conservation Authority (RCA) MSHCP Information Tool was used to determine MSHCP requirements using the following APNs: 000-111-130, 157-020-003, 161-332-003, 161-332-008, 161-332-009, 161-332-010, 161-332-012, 162-200-008, 162-200-009, 162-200-010, 162- 200-011, 162-200-014, 162-200-022, 162-200-023, 162-200-026, 162-200-027, 162-210-004, 162-210- 011, 162-210-012, 162-220-001, 162-220-002, 162-220-008, 162-220-010, 162-220-011, 162-220-014, 162-220-016, 162-220-017, 162-230-001, 162-301-005, 162-301-006, 162-301-007, 162-302-001, 162- 302-002, 162-302-003, 162-302-008, 162-302-009, and 162-302-021.

Rainfall received in the winter and spring determines the germination of many annual and perennial herb species. The region received approximately 12.5 inches of precipitation between July 1, 2018 and June 30, 2019 (data taken from U.C. Riverside – Los Angeles Basin – Station No. 44) (CIMIS 2019). The average annual precipitation for this area is approximately 10 inches. Observed normal rainfall amounts indicate suitable conditions for plant germination.

Surveys were conducted on April 24, 2019, by Psomas Senior Biologists Allison Rudalevige and Lindsay Messett and on July 24, 2019 by Ms. Rudalevige. The total number of person-hours spent surveying was approximately 3 hours. The special status plant survey area consisted of the 18.17-acre project impact boundary; inaccessible areas were surveyed from Limonite Avenue through binoculars. All plant species observed were recorded in field notes. Plant species were identified in the field or collected for future identification. Plants were identified to the taxonomic level necessary to determine whether or not they are a special status species. Plants were identified using taxonomic keys, descriptions, and illustrations in Jepson Flora Project (2018), Baldwin et al. (2012), Hickman (1993), and Munz (1974). Nomenclature of plant taxa conform to the Special Vascular Plants, Bryophytes, and Lichens List (CDFW 2019b) for special status species and the Jepson eFlora (Jepson Flora Project 2018) for all other taxa.

Any special status plant species observed would be mapped with a Global Positioning System (GPS) unit and data would be collected on the number and phenology of individuals (estimated for large populations), microsite characteristics such as slope, aspect, soil texture, surrounding habitat, and associated species.

SURVEY RESULTS

According to the RCA MSHCP Information Tool, focused plant surveys are required for Narrow Endemic plant species (i.e., San Diego ambrosia [Ambrosia pumila], Brand’s star phacelia [Phacelia stellaris], and San Miguel savory [Clinopodium chandleri]) if suitable habitat is present in the survey area. In addition, 16 species not covered by the MSHCP have been reported in the vicinity of the survey

Mr. Chase Keys August 20, 2019 Page 3 area based on the literature review. Table 1 identifies the special status plants reported from the literature review with their status, their potential to occur in the survey area, and the survey results. A list of all plants observed during special status plant surveys is included in Attachment B.

TABLE 1 SPECIAL STATUS PLANT SPECIES REPORTED FROM THE PROJECT REGION

Status MSHCP Potential to Occur; Narrow Results of Focused Species USFWS CDFW CRPR Endemic Surveys Not expected to occur; no Abronia villosa var. aurita suitable habitat and not – – 1B.1 – chaparral sand-verbena observed during focused surveys. Not expected to occur; not Ambrosia pumila FE – 1B.1 yes observed during focused San Diego ambrosia surveys. Not expected to occur; no Arenaria paludicola suitable habitat and not FE SE 1B.1 – marsh sandwort observed during focused surveys. Not expected to occur; no suitable soils, at edge of Calochortus catalinae – – 4.2 – current known range, and Catalina mariposa lily not observed during focused surveys. Not expected to occur; no Calochortus plummerae suitable habitat and not – – 4.2 – Plummer’s mariposa lily observed during focused surveys. Not expected to occur; no Chloropyron maritimum ssp. suitable habitat and not maritimum FE SE 1B.2 – observed during focused salt marsh bird’s-beak surveys. Not expected to occur; no Cladium californicum suitable habitat and not – – 2B.2 – California sawgrass observed during focused surveys. Not expected to occur; no suitable habitat, outside the Clinopodium chandleri – – 1B.2 yes current known range, and San Miguel savory not observed during focused surveys. Not expected to occur; not Deinandra paniculata – – 4.2 – observed during focused paniculate tarplant surveys. Not expected to occur; no Horkelia cuneata var. suitable habitat and not puberula – – 1B.1 – observed during focused mesa horkelia surveys.

Mr. Chase Keys August 20, 2019 Page 4

TABLE 1 SPECIAL STATUS PLANT SPECIES REPORTED FROM THE PROJECT REGION

Status MSHCP Potential to Occur; Narrow Results of Focused Species USFWS CDFW CRPR Endemic Surveys Not expected to occur; no Lepidium virginicum var. suitable habitat and not robinsonii – – 4.3 – observed during focused Robinson’s pepper-grass surveys. Not expected to occur; no Lycium parishii suitable habitat and not – – 2B.3 – Parish’s desert-thorn observed during focused surveys. Not expected to occur; no suitable habitat, considered Malacothamnus parishii – – 1A – extirpated, and not Parish’s bush-mallow observed during focused surveys. Not expected to occur; no suitable habitat, considered Monardella pringlei – – 1A – extirpated, and not Pringle’s monardella observed during focused surveys. Not expected to occur; no Phacelia stellaris suitable habitat and not – – 1B.1 yes Brand’s star phacelia observed during focused surveys. Pseudognaphalium Not expected to occur; not leucocephalum – – 2B.2 – observed during focused white rabbit-tobacco surveys. Not expected to occur; no Senecio aphanactis suitable habitat and not – – 2B.2 – chaparral ragwort observed during focused surveys. Not expected to occur; no Sphenopholis obtusata suitable habitat and not – – 2B.2 – prairie wedge grass observed during focused surveys. Not expected to occur; not Symphyotrichum defoliatum – – 1B.2 – observed during focused San Bernardino aster surveys.

Mr. Chase Keys August 20, 2019 Page 5

TABLE 1 SPECIAL STATUS PLANT SPECIES REPORTED FROM THE PROJECT REGION

Status MSHCP Potential to Occur; Narrow Results of Focused Species USFWS CDFW CRPR Endemic Surveys USFWS: U.S. Fish and Wildlife Service; CDFW: California Department of Fish and Wildlife; CRPR: California Rare Plant Rank; MSHCP: Multiple Species Habitat Conservation Plan. Federal (USFWS) State (CDFW) FE Endangered SE Endangered

California Rare Plant Rank (CRPR) 1A Plants presumed extirpated in California and either rare or extinct elsewhere 1B Plants Rare, Threatened, or Endangered in California and elsewhere 2B Plants Rare, Threatened, or Endangered in California but more common elsewhere 4 Plants of limited distribution – A Watch List CRPR Threat Code Extensions None Plants lacking any threat information .1 Seriously threatened in California (over 80% of occurrences threatened; high degree and immediacy of threat) .2 Fairly threatened in California (20–80% of occurrences threatened; moderate degree and immediacy of threat) .3 Not very threatened in California (<20% of occurrences threatened; low degree and immediacy of threat or no current threats known)

CONCLUSIONS

Based on the results of the focused surveys, no special status plant species were observed in the survey area. While there is a minimal potential for false negative survey results (i.e., a species being present, but not detectable, on a site), the above average rainfall experienced in the winter and spring prior to focused surveys provides good growing conditions and increases the chance that special status plant species would be observable on site, if present. Therefore, the proposed Project would not impact special status plant species and no avoidance, minimization, or mitigation measures would be necessary.

If you have any comments or questions, please call Kent Norton at (714) 751-7373.

Sincerely,

Ann M. Johnston Kent Norton, AICP, REPA Vice President/Principal, Resource Management Senior Project Manager

Enclosures: Exhibit 1 – Project Location Exhibit 2 – USGS 7.5-Minute Digital Quadrangle Exhibit 3 – Soil Types Attachment A – Conceptual Improvement Plans Attachment B – Plant Compendium

R:\Projects\JUR\3JUR010100\Plants\Limonite Ave SS Plant Report-082019.docx

Mr. Chase Keys August 20, 2019 Page 6

REFERENCES

Baldwin, B.G., D.J. Keil, R. Patterson, T.J. Rosatti, and D.H. Wilken (Eds.). 2012. The Jepson Manual: Vascular Plants of California (Second ed.). Berkeley, CA: University of California Press.

California Department of Fish and Wildlife (CDFW). 2019a. California Natural Diversity Database. Records of Occurrence for the Corona North, Fontana, Guasti, and Riverside West USGS quadrangles. Sacramento, CA: CDFW, Natural Heritage Division.

———. 2019b (August). Special Vascular Plants, Bryophytes, and Lichens List. Sacramento, CA: CDFW, Natural Heritage Division.

———. 2018 (March 20). Protocols for Surveying and Evaluating Impacts to Special Status Native Plant Populations and Sensitive Natural Communities. Sacramento, CA: CDFW.

California Irrigation Management Information System (CIMIS). 2019 (August 13, date accessed). CIMIS Monthly Report for U.C. Riverside – Los Angeles Basin - Station #44. Sacramento, CA: California Department of Water Resources, CIMIS. http://www.cimis.water.ca.gov.

California Native Plant Society (CNPS). 2019. Inventory of Rare and Endangered Plants. Records of Occurrence for the Corona North, Fontana, Guasti, and Riverside West USGS quadrangles. Sacramento, CA: CNPS. http://www.cnps.org/inventory.

Hickman, J.C., Ed. 1993. The Jepson Manual of Higher Plants of California. Berkeley, CA: University of California Press.

Jepson Flora Project. 2018 (September, Revision 6). Jepson eFlora (Records for common species in the Plant Compendium). Berkeley, CA: The Jepson Herbarium. http://ucjeps.berkeley.edu/eflora/.

Munz, P.A. 1974. A Flora of Southern California. Berkeley, CA: University of California Press. O rc o P k Birtche w r

y St Avon D

r r p Galena St

Cantu-Galleano i Ranch 215 St Glen

Rd B o

Rancho C a d o V ¨§

R a Ln L w i lle Cucamonga r n k y o le c F l u o l R S o m r rg ST30 o ld e a e 210 t

h l o

t R Bellegrave Ave D B Ln Dapple h k

§Van Buren Blvd n s ¨ u r g o

L a n t i o k i San Bernardino C 15 r oc l y e R l ¨§ Rialto B l i

Woodbridge Ln S

F t Birmingham Ave 48th St wbrook Rd 10 illo ¨§ W Ontario SanBernardino Derby Dr ST60 Riverside

Berkshire Dr Redlands P

o Riverside Newcastle St Newcastle i n s 50th St e tt

a Webb St Pl Hill

P J St J ST71 l Project Site ST60

Martin St

t 51st St F S e Moreno Valley

Castro St l

h ST91 s

c p

a a

r e

S Jurupa Rd CoronaB 52nd St t Lake Lake Perris Mathews 215 53rd St ¨§ Perris 54th St 15

Steve StSteve Dodd St Dodd ¨§

Marlatt St

Troth St Troth

55th St San Sevaine San Channel

56th St Ash St Ash

57th St Ln Tomal

58th St S

EtiwandaAve

Serendipity Rd a

Ce d l

S T

g s 59th St

u t a

S r

Ridgeview Ave Ridgeview

p g

County Ln ru r r o Sti w

t Rd

Hudson St 60th St S k S u z e d p e e h Scheelite St a St Azurite

r CanyonHorse Rd S c C e t te t a i s N r e y 61st St m C P o o rra H l St

Limonite Ave St Collins

Santa Ana River

Downey St Downey 63rd St Corey 64th St

Santa Ana River StArcher Mann Ave Mann S t 65th St

Baker StBaker Kennedy St

Idyllw i

t l S d

l L u n A

Ontario St Ju Tyler St ru Aerial Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics,pa A Study Area CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GISv Usere Community Copyright:(c) 2014 Esri D:\Projects\3JUR\010100\MXD\SS_Plants\Ex_project_location_20190813.mxd

Project Location Exhibit 1 Limonite Avenue Widening – Bain to Homestead to Project AvenueBain –Widening Limonite

2,000 1,000 0 2,000 Feet ² (Rev: 8-13-2019 MMD) R:\Projects\JUR\3JUR010100\Graphics\SS_Plants\ex_ProjectLocation.pdf GUASTI QUADRANGLE FONTANA QUADRANGLE CORONA NORTH QUADRANGLE RIVERSIDE WEST QUADRANGLE

CORONA NORTH CORONA QUADRANGLE

RIVERSIDEWEST QUADRANGLE

Source: USGS 7.5 Minute Quadrangle Riverside West Corona North Study Area Township: 02S Range: 06W

D:\Projects\3JUR\010100\MXD\SS_Plants\Ex_USGS_20190813.mxd Sections: 21, 22, 27, 28

USGS 7.5-Minute Digital Quadrangle Exhibit 2 Limonite Avenue Widening – Bain to Homestead to Project AvenueBain –Widening Limonite

2,000 1,000 0 2,000 Feet ² (Rev: 8-13-2019 MMD) R:\Projects\JUR\3JUR010100\Graphics\SS_Plants\ex_USGS.pdf D:\Projects\3JUR\010100\MXD\SS_Plants\Ex_soils_20190813.mxd L i mo Types Soil ni t e Av e nue Wi d e ni ng – Ba i n t o Ho me s t e a d Pr o j e c t ²

Dodd St

200

n t

Exhibit

a A

3a Dodd St n Se60th r endi St p i t y Rd

100

r L i mo ni t e Av e

0 59th St Pa r a d i s e Knol l s Exhibit Gol f Cour s e 0 3b Beach St 200

Feet H ome stea

1,000 C d S

o t

r Stirrup St

61st St

S t

MmE3 Spur St

2,000 Saguaro St

64th St 63rd St Feet Downey St Ho r s e Ca ny o n Rd Santa Ana River Santa Ana

MmB

A v

e Bain St

San Sevaine Channel MmD2 MmB GtA Soil Types Soil

TeG: Terrace escarpments eroded slopes, 8 percent to 5 loam, sandy Ramona RaC2: eroded severely slopes, percent 5 to 0 loam, sandy Ramona RaB3: eroded severely slopes, percent 25 to 15 loam, sandy Monserate MmE3: eroded slopes, percent 15 to 8 loam, sandy Monserate MmD2: slopes percent 5 0 to loam, sandy Monserate MmB: eroded slopes, percent 2 to 0 sand, loamy Hilmar HhA2: slopes 2 percent to 0 drained, loam, sandy fine Grangeville GtA: Appaloosa slopes percent 8 2 to deep, sand, loamy Gorgonio GlC: Ave Study Area GlC (Rev: 8-13-2019 MMD) R:\Projects\JUR\3JUR010100\Graphics\SS_Plants\ex_SoilTypes.pdf MMD) 8-13-2019 (Rev: HhA2 Community USDA, CNES/AirbusUSGS, DS, and GISUser AeroGRID,IGN, the Earthstar Geographics, DigitalGlobe,Esri, GeoEye, Aerial Source: GtA Exhibit 3a Exhibit

Match Line - Exhibit 5b 59th St Study Area StirrupSt

Serendipity Rd Serendipity 60th St t Soil Types

S t Spur St Spur d S a

Saguaro St Saguaro

Dodd St Dodd e 61st St d

Beach St Beach t Rd Canyon Horse a GlC: Gorgonio loamy sand, deep, 2 to 8 percent slopes s te e es m C o or m ral o GtA: Grangeville fine sandy loam, drained, 0 to 2 percent slopes H St H Exhibit L i mo ni t e Av e Exhibit HhA2: Hilmar loamy sand, 0 to 2 percent slopes, eroded 3a 3b 61

MmB: Monserate sandy loam, 0 to 5 percent slopes st St Downey St Downey ParadiseKn olls 63rd St MmD2: Monserate sandy loam, 8 to 15 percent slopes, eroded Golf CourseGolf MmE3: Monserate sandy loam, 15 to 25 percent slopes, severely eroded 64th St S RaB3: Ramona sandy loam, 0 to 5 percent slopes, severely eroded anta An a Rive r 0 1,000 2,000 RaC2: Ramona sandy loam, 5 to 8 percent slopes, eroded Feet TeG: Terrace escarpments

BeachSt

o s s

Pyrite a

Creek L Co rral St

RaB3

TeG

MmB GtA MmB

Limonite Ave RaB3

MatchLine - Exhibit5a

RaC2

Aerial Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User

D:\Projects\3JUR\010100\MXD\SS_Plants\Ex_soils_20190813.mxd Community Soil Types Exhibit 3b Limonite AvenueLimonite HomesteadWidening Bainto Project –

200 100 0 200 Feet ² (Rev: 8-13-2019 MMD) R:\Projects\JUR\3JUR010100\Graphics\SS_Plants\ex_SoilTypes.pdf

ATTACHMENT A

CONCEPTUAL IMPROVEMENT PLANS

Bain St

162-200-011 162-200-026 162-200-023 162-200-027 162-200-014

Limonite Ave

162-220-014

162-220-002 162-220-001

162-220-016

Limits of Ground Disturbance ROW Expansion Area Proposed Sidewalk and Curb Temporary Construction Area Proposed Lane Line and Striping Existing ROW Area Proposed Driveway Entrance Proposed Fence Proposed Concrete Barrier Existing Property Line

D:\Projects\3JUR\010100\MXD\SS_Plants\Ex_project_features_8x11_20190814.mxd Aerial Source: Esri, Digital Globe 2017

Conceptual Improvement Plans Attachment A Limonite Avenue Widening Project – Bain Street to Homestead to Street Street Bain – AvenueProject Widening Limonite

150 75 0 150 ² Feet (Rev: 08/14/2019 CJS) R:\Projects\JUR\3JUR010100\Graphics\IS\ 162-200-010 162-200-011 162-200-009 162-200-022 162-200-023

Limonite Ave

162-220-014

162-220-002 162-220-010 162-220-011

162-220-016

Limits of Ground Disturbance Temporary Construction Area Proposed Sidewalk and Curb Existing ROW Area Proposed Lane Line and Striping Proposed Driveway Entrance Proposed Fence Existing Property Line ROW Expansion Area

D:\Projects\3JUR\010100\MXD\SS_Plants\Ex_project_features_8x11_20190814.mxd Aerial Source: Esri, Digital Globe 2017

Conceptual Improvement Plans Attachment A Limonite Avenue Widening Project – Bain Street to Homestead to Street Street Bain – AvenueProject Widening Limonite

150 75 0 150 ² Feet (Rev: 08/14/2019 CJS) R:\Projects\JUR\3JUR010100\Graphics\IS\ 162-200-010 162-200-009 162-200-022 162-200-008 162-210-004 162-210-011

Limonite Ave BeachSt

162-220-010 162-220-011 162-220-017 162-230-001

D:\Projects\3JUR\010100\MXD\SS_Plants\Ex_project_features_8x11_20190814.mxd Aerial Source: Esri, Digital Globe 2017

Conceptual Improvement Plans Attachment A Limonite Avenue Widening Project – Bain Street to Homestead to Street Street Bain – AvenueProject Widening Limonite

150 75 0 150 ² Feet (Rev: 08/14/2019 CJS) R:\Projects\JUR\3JUR010100\Graphics\IS\ t Co C r ral o S s t s

BeachSt 162-301-006

Homestead St

162-210-012 162-210-011 162-301-007

Limonite Ave

162-230-001

Limits of Ground Disturbance Existing ROW Area Proposed Sidewalk and Curb Proposed Lane Line and Striping Proposed Fence Existing Property Line ROW Expansion Area Temporary Construction Area

D:\Projects\3JUR\010100\MXD\SS_Plants\Ex_project_features_8x11_20190814.mxd Aerial Source: Esri, Digital Globe 2017

Conceptual Improvement Plans Attachment A Limonite Avenue Widening Project – Bain Street to Homestead to Street Street Bain – AvenueProject Widening Limonite

150 75 0 150 ² Feet (Rev: 08/14/2019 CJS) R:\Projects\JUR\3JUR010100\Graphics\IS\

ATTACHMENT B

PLANT COMPENDIUM

Limonite Avenue Widening - Bain to Homestead Project

PLANTS OBSERVED DURING SPECIAL STATUS PLANT SURVEYS

Species Scientific Name Common Name GYMNOSPERMS PINACEAE – PINE FAMILY Pinus sp. pine EUDICOTS ANACARDIACEAE – SUMAC FAMILY Schinus molle* pepper tree APIACEAE – CARROT FAMILY Conium maculatum* poison hemlock ASTERACEAE – SUNFLOWER FAMILY Ambrosia psilostachya western ragweed Baccharis salicifolia ssp. salicifolia mule fat Cirsium vulgare* bull thistle Cotula australis* Australian cotula Erigeron bonariensis* flax-leaved horseweed Hedypnois cretica* Crete's hedypnois Helianthus annuus annual sunflower Lactuca serriola* prickly lettuce Oncosiphon piluliferum* stinknet Pseudognaphalium luteoalbum* white lamb cudweed Senecio vulgaris* common groundsel Sonchus asper ssp. asper* prickly sow thistle Sonchus oleraceus* common sow thistle Verbesina encelioides ssp. exauriculata* golden crownbeard Xanthium spinosum* spiny cocklebur BRASSICACEAE – MUSTARD FAMILY Hirschfeldia incana* grayish shortpod mustard Lepidium didymum* lesser swine grass Raphanus sativus* radish Sisymbrium irio* London rocket CHENOPODIACEAE – GOOSEFOOT FAMILY Salsola tragus* Russian thistle EUPHORBIACEAE – SPURGE FAMILY Croton californicus California croton Croton setiger turkey-mullein Euphorbia maculata* spotted spurge FABACEAE – LEGUME FAMILY Medicago sativa* alfalfa Parkinsonia aculeata* Mexican palo verde GERANIACEAE – GERANIUM FAMILY Erodium cicutarium* redstem filaree Erodium moschatum* greenstem filaree LAMIACEAE – MINT FAMILY Marrubium vulgare* common horehound

R:\Projects\JUR\3JUR010100\Plants\Limonite Ave SS Plant Report-082019.docx B-1 Plant Compendium Limonite Avenue Widening - Bain to Homestead Project

PLANTS OBSERVED DURING SPECIAL STATUS PLANT SURVEYS

Species Scientific Name Common Name MALVACEAE – MALLOW FAMILY Malva parviflora* cheeseweed Malvella leprosa alkali-mallow MELIACEAE – MAHOGANY FAMILY Melia azedarach* china berry MYRTACEAE – MYRTLE FAMILY Eucalyptus sp.* gum tree NYCTAGINACEAE – FOUR O'CLOCK FAMILY Bougainvillea sp. bougainvillea OLEACEAE – OLIVE FAMILY Fraxinus uhdei* shamel ash ONAGRACEAE – EVENING PRIMROSE FAMILY Eulobus californicus California eulobus PASSIFLORACEAE – PASSION FLOWER FAMILY Passiflora caerulea* blue passion flower POLYGONACEAE – BUCKWHEAT FAMILY Polygonum aviculare* knotweed SALICACEAE – WILLOW FAMILY Salix gooddingii Goodding's black willow SIMAROUBACEAE – SIMAROUBA FAMILY Ailanthus altissima* tree of heaven SOLANACEAE – NIGHTSHADE FAMILY Datura wrightii Wright's jimsonweed Nicotiana glauca* tree tobacco URTICACEAE – NETTLE FAMILY Urtica urens* dwarf nettle VERBENACEAE – VERVAIN FAMILY Lantana sp.* lantana ZYGOPHYLLACEAE – CALTROP FAMILY Tribulus terrestris* puncture vine MONOCOTS AGAVACEAE – AGAVE FAMILY Agave sp.* century plant ARECACEAE – PALM FAMILY Phoenix sp.* palm Washingtonia robusta* Mexican fan palm CYPERACEAE – SEDGE FAMILY Cyperus eragrostis lovegrass flatsedge POACEAE – GRASS FAMILY Avena fatua* wild oat Cynodon dactylon* Bermuda grass Hordeum murinum* wall barley Phalaris minor* little-seeded canary grass

R:\Projects\JUR\3JUR010100\Plants\Limonite Ave SS Plant Report-082019.docx B-2 Plant Compendium Limonite Avenue Widening - Bain to Homestead Project

PLANTS OBSERVED DURING SPECIAL STATUS PLANT SURVEYS

Species Scientific Name Common Name Phalaris paradoxa* hood canary grass Schismus barbatus* barbed Mediterranean grass * Non-native or invasive species

R:\Projects\JUR\3JUR010100\Plants\Limonite Ave SS Plant Report-082019.docx B-3 Plant Compendium