Agenda packet — Arroyo Grande City Council, July 25, 2023 (part 6 of 8)

Percent Count
Work 16% 12
Bus stop 3% 2
Church 10% 8
Friend’s house 12% 9
School 8% 6
Recreation area 6% 5
Shopping 16% 12
No particular destination: walking for
fitness or leisure
6% 5
I never walk along Halcyon Road 3% 2
Other 21% 16
Totals 100% 77
NOTE: Other includes Hospital

12.) What are your key destinations along Halcyon Road? (check all that apply) (Multiple Choice - Multiple Response) Responses
0%
5%
10%
15%
20%
25%
1 2 3 4 5 6 7 8 9 10
16%
3%
10%
12%
8%
6%
16%
6%
3%
21%

Page 830 of 1114 ends

Percent Count
Paper 8% 2
Online 21% 5
Both 8% 2
None 63% 15
Totals 100% 24
Percent Count
Yes 56% 14
No 44% 11
Totals 100% 25

13.) Did you complete a survey? (Demographic Assignment) Responses

14.) Did you attend a workshop in September 2016? (Demographic Assignment) Responses
0%
10%
20%
30%
40%
50%
60%
70%
1 2
3 4
8%
21%
8%
63%
0%
20%
40%
60%
1 2
56%
44%

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Percent Count
Strongly Support 29% 6
Support 38% 8
Somewhat Support 0% 0
Neutral 10% 2
Somewhat Oppose 0% 0
Oppose 10% 2
Strongly Oppose 14% 3
Totals 100% 21

15.) Context Zone 1 - To what extent do you support the proposed concept? (Multiple Choice) Responses
0%
5%
10%
15%
20%
25%
30%
35%
40%
1 2 3 4 5 6 7
29%
38%
0%
10%
0%
10%
14%

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Percent Count
Strongly Support 19% 3
Support 13% 2
Somewhat Support 25% 4
Neutral 25% 4
Somewhat Oppose 6% 1
Oppose 6% 1
Strongly Oppose 6% 1
Totals 100% 16

16.) Context Zone 2 - To what extent do you support the proposed concept? (Multiple Choice) Responses
0%
5%
10%
15%
20%
25%
1 2 3 4 5 6 7
19%
13%
25% 25%
6% 6% 6%

Page 833 of 1114 ends

Percent Count
Strongly Support 12% 2
Support 6% 1
Somewhat Support 6% 1
Neutral 29% 5
Somewhat Oppose 12% 2
Oppose 18% 3
Strongly Oppose 18% 3
Totals 100% 17
Percent Count
Alt 1 – Road Diet / Roundabout 69% 11
Alt 2 – Signalized Intersection 25% 4
Other 6% 1
Totals 100% 16

18.) Which alternative do you prefer? (Multiple Choice) Responses

17.) Context Zone 2 - To what extent do you support the signalized alternative? (Multiple Choice) Responses
0%
5%
10%
15%
20%
25%
30%
1 2 3 4 5 6 7
12%
6% 6%
29%
12%
18% 18%
0%
10%
20%
30%
40%
50%
60%
70%
1 2
3 69%
25%
6%

Page 834 of 1114 ends

Percent Count
Strongly Support 50% 8
Support 19% 3
Somewhat Support 13% 2
Neutral 13% 2
Somewhat Oppose 6% 1
Oppose 0% 0
Strongly Oppose 0% 0
Totals 100% 16

19.) Context Zone 3 - To what extent do you support the proposed concept? (Multiple Choice) Responses
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
50%
1 2 3 4 5 6 7
50%
19%
13% 13%
6%
0% 0%

Page 835 of 1114 ends

Percent Count
Strongly Support 31% 5
Support 13% 2
Somewhat Support 19% 3
Neutral 19% 3
Somewhat Oppose 6% 1
Oppose 13% 2
Strongly Oppose 0% 0
Totals 100% 16
Percent Count
Very effective 71% 10
Effective 14% 2
Somewhat effective 7% 1
Not very effective 0% 0
Not at all effective 7% 1
Totals 100% 14
Responses

20.) Context Zone 4 - To what extent do you support the proposed concept? (Multiple Choice) Responses

21.) How effective was this meeting to understand and discuss alternatives for Halcyon Rd. (Multiple Choice) 0%
5%
10%
15%
20%
25%
30%
35%
1 2 3 4 5 6 7
31%
13%
19% 19%
6%
13%
0%
0%
10%
20%
30%
40%
50%
60%
70%
80%
1 2 3 4 5
71%
14%
7%
0%
7%

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3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 1/27 Create a team to collaborate with others on surveys and share templates, logos, themes and more. Create a team now ] Arroyo Grande Halcyon Road Complete Streets Plan (English) Summary ] Design Survey ] Collect Responses ] Analyze Results w RESPONDENTS: 17 of 17
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PAGE 1: Demographics
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0.00% 0

11.76% 2

35.29% 6

47.06% 8

5.88% 1
Which age group are you in?
Answered: 17 Skipped: 0
Total 17
18 or under
19-35
36-50
51-70
Over 70
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– 18 or under
– 19-35
– 36-50
– 51-70
– Over 70
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How many children under the age of 13 are
in your household?
Answered: 15 Skipped: 2
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Q4
Search responses ?
Showing 15 responses
Categorize as... Filter by Category
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2 3/2/2017 2:47 PM View respondent's answers Categorize as... œ 2 2/17/2017 8:50 PM View respondent's answers Categorize as... œ 2 2/10/2017 4:15 PM View respondent's answers Categorize as... œ 0 12/1/2016 1:55 PM View respondent's answers Categorize as... œ 2 11/23/2016 2:44 PM View respondent's answers Categorize as... œ 0 10/29/2016 8:21 AM View respondent's answers Categorize as... œ 0 10/18/2016 8:28 PM View respondent's answers Categorize as... œ Customize Export

88.24% 15

11.76% 2

0.00% 0

0.00% 0
How close do you live to Halcyon Road?
Answered: 17 Skipped: 0
Total 17
<1 mile
1-5 miles
6-10 miles
>10 miles
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– <1 mile
– 1-5 miles
– 6-10 miles
– >10 miles
Customize Export
How often do you drive, walk, or bike along
Halcyon Road?
Answered: 17 Skipped: 0

Page 838 of 1114 ends

82.35% 14

17.65% 3

0.00% 0

0.00% 0
Total 17
4+ times per
week
1-3 times per
week
1-3 times per month
Never
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– 4+ times per week
– 1-3 times per week
– 1-3 times per month
– Never
Customize Export

62.50% 10

12.50% 2

6.25% 1

18.75% 3
How often do you walk for a significant
distance, i.e., more than 5 minutes for a
single trip?
Answered: 16 Skipped: 1
Total 16
4+ times per
week
1-3 times per
week
1-3 times per month
Never
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– 4+ times per week
– 1-3 times per week
– 1-3 times per month
– Never

Page 839 of 1114 ends

18.75% 3

12.50% 2

31.25% 5

37.50% 6
How often do you bike for any purpose?
Answered: 16 Skipped: 1
Total 16
4+ times per
week
1-3 times per
week
1-3 times per month
Never
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– 4+ times per week
– 1-3 times per week
– 1-3 times per month
– Never
Customize Export

37.50% 6

37.50% 6
What if bike markings ("sharrows" as
pictured above) were added?
Answered: 16 Skipped: 1
Yes
No
I'm not sure
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Yes
– No

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3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 5/27 Q8
Q9

25.00% 4
Total 16
– I'm not sure
Customize Export

56.25% 9

25.00% 4

18.75% 3
What if a bike lane (as pictured above) was
added?
Answered: 16 Skipped: 1
Total 16
Yes
No
I'm not sure
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Yes
– No
– I'm not sure
Customize Export

68.75% 11

12.50% 2
What if a buffered bike lane (as pictured
above) was added?
Answered: 16 Skipped: 1
Yes
No
I'm not sure
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Yes
– No

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3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 6/27 Q10
Q11

18.75% 3
Total 16
– I'm not sure
Customize Export

81.25% 13

0.00% 0

18.75% 3
What if a wide bike lane separated from
traffic by a curb or parked cars (as pictured
above) was added?
Answered: 16 Skipped: 1
Total 16
Yes
No
I'm not sure
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Yes
– No
– I'm not sure
Customize Export

93.75% 15
What if a multi-use path completely
separated from traffic (as pictured above)
was added?
Answered: 16 Skipped: 1
Yes
No
I'm not sure
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Yes

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3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 7/27 Q12
Q13

0.00% 0

6.25% 1
Total 16
– No
– I'm not sure
Customize Export

43.75% 7

50.00% 8

6.25% 1
What if roundabouts replaced four-way
stops and traffic lights (as pictured above)?
Answered: 16 Skipped: 1
Total 16
Yes
No
I'm not sure
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Yes
– No
– I'm not sure
Customize Export

37.50% 6
What if a traffic lane were removed (as
pictured above)?
Answered: 16 Skipped: 1
Yes
No
I'm not sure
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Yes

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3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 8/27 Q14
Q15

43.75% 7

18.75% 3
Total 16
– No
– I'm not sure
Customize Export

87.50% 14

12.50% 2

0.00% 0
What if sidewalks (as pictured above) were
added?
Answered: 16 Skipped: 1
Total 16
Yes
No
I'm not sure
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Yes
– No
– I'm not sure
Customize Export

31.25% 5
What if benches and other street furniture
(similar to what is pictured above) were
added?
Answered: 16 Skipped: 1
Yes
No
I'm not sure
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Yes Page 844 of 1114
3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 9/27 Q16
Q17
PAGE 3: Halcyon Road Travel Behavior

50.00% 8

18.75% 3
Total 16
– No
– I'm not sure
Customize Export

93.75% 15

87.50% 14

56.25% 9

75.00% 12

0.00% 0

6.25% 1

18.75% 3

0.00% 0
Please indicate what modes of
transportation you use to travel along
Halcyon Road (select all that apply)
Answered: 16 Skipped: 1
Total Respondents: 16
Drive alone
Drive with
others (Fami...

Bike
Walk
Public transit
Taxi/ridesharin
g service
Scooter,
skateboard, ...

Other (please
specify)
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Drive alone
– Drive with others (Family, Friends or Carpool)
– Bike
– Walk
– Public transit
– Taxi/ridesharing service
– Scooter, skateboard, or low speed electric device
– Other (please specify) Responses
Customize Export
How Often do you walk along Halcyon Road
for a significant distance, i.e., more than 5
minutes for a single trip?
Answered: 16 Skipped: 1

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3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 10/27 Q18

31.25% 5

25.00% 4

12.50% 2

25.00% 4

6.25% 1
Total 16
4+ times per
week
1-3 times per
week
1-3 times per month
Rarely
Never
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– 4+ times per week
– 1-3 times per week
– 1-3 times per month
– Rarely
– Never
Customize Export
What are your key walking destinations
along Halcyon Road? (check all that apply)
Answered: 16 Skipped: 1

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6.25% 1

0.00% 0

31.25% 5

62.50% 10

31.25% 5

18.75% 3

56.25% 9

12.50% 2

0.00% 0
Total Respondents: 16
Work
Bus stop
Church
Friend's house
School
Recreation area
Shopping or
errands...

No particular
destination:...

I never walk
along Halcyo...

I only use
Halcyon Road...

Other (please
specify)
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Work
– Bus stop
– Church
– Friend's house
– School
– Recreation area
– Shopping or errands (including medical services)
– No particular destination: walking for fitness or leisure – I never walk along Halcyon Road
– I only use Halcyon Road to access other areas
– Other (please specify) Responses
Customize Export
How often do you bike along Halcyon
Road?
Answered: 16 Skipped: 1

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3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 12/27 Q20

6.25% 1

12.50% 2

18.75% 3

43.75% 7
Total 16
4+ times per
week
1-3 times per
week
1-3 times per month
Rarely
Never
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– 4+ times per week
– 1-3 times per week
– 1-3 times per month
– Rarely
– Never
Customize Export
What are your key biking destinations along
Halcyon Road? (check all that apply)
Answered: 14 Skipped: 3

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7.14% 1

0.00% 0

28.57% 4

35.71% 5

21.43% 3

42.86% 6

35.71% 5

7.14% 1

0.00% 0
Total Respondents: 14
Work
Bus stop
Church
Friend's house
School
Recreation area
Shopping or
errands...

No particular
destination:...

I never bike
along Halcyo...

I only use
Halcyon Road...

Other (please
specify)
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Work
– Bus stop
– Church
– Friend's house
– School
– Recreation area
– Shopping or errands (including medical services)
– No particular destination: biking for fitness or leisure – I never bike along Halcyon Road
– I only use Halcyon Road to access other areas
– Other (please specify) Responses
Customize Export
How often do you take transit to Halcyon
Road for any purpose?
Answered: 15 Skipped: 2

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6.67% 1

0.00% 0

20.00% 3

73.33% 11
Total 15
4+ times per
week
1-3 times per
week
1-3 times per month
Rarely
Never
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– 4+ times per week
– 1-3 times per week
– 1-3 times per month
– Rarely
– Never
Customize Export

7.69% 1
What are your key transit destinations
along Halcyon Road? (check all that apply)
Answered: 13 Skipped: 4
Work
Church
Friend's house
School
Recreation area
Shopping or
errands...

I never take
transit alon...

I only use
Halcyon Road...

Other (please
specify)
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Work

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3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 15/27 Q23
Q24

7.69% 1

15.38% 2

23.08% 3

15.38% 2

46.15% 6

23.08% 3

7.69% 1
Total Respondents: 13
– Church
– Friend's house
– School
– Recreation area
– Shopping or errands (including medical services)
– I never take transit along Halcyon Road
– I only use Halcyon Road to access other areas
– Other (please specify) Responses
Customize Export

50.00% 7

7.14% 1

0.00% 0

14.29% 2

28.57% 4
How often do you take transit to/from
Halcyon Road for any purpose?
Answered: 14 Skipped: 3
Total 14
4+ times per
week
1-3 times per
week
1-3 times per month
Rarely
Never
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– 4+ times per week
– 1-3 times per week
– 1-3 times per month
– Rarely
– Never
Customize Export
What are your key driving destinations
along Halcyon Road? (check all that apply)
Answered: 16 Skipped: 1

Page 851 of 1114 ends

62.50% 10

0.00% 0

43.75% 7

56.25% 9

43.75% 7

68.75% 11

0.00% 0

25.00% 4

6.25% 1
Total Respondents: 16
Work
Bus stop
Church
Friend's house
School
Recreation area
Shopping or
errands...

I never drive
along Halcyo...

I only use
Halcyon Road...

Other (please
specify)
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Work
– Bus stop
– Church
– Friend's house
– School
– Recreation area
– Shopping or errands (including medical services)
– I never drive along Halcyon Road
– I only use Halcyon Road to access other areas
– Other (please specify) Responses
Customize Export
The transportation options available to me
along Halcyon Road are suitable to my
needs:

Answered: 16 Skipped: 1

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3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 17/27 Q26

12.50% 2

31.25% 5

25.00% 4
Total 16
Strongly agree
Agree
Disagree
Strongly
disagree
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Strongly agree
– Agree
– Disagree
– Strongly disagree
Customize Export

0.00% 0

62.50% 10

37.50% 6
How would you rate overall walking
conditions along Halcyon Road?
Answered: 16 Skipped: 1
Total 16
Excellent
Good
Fair
Poor
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Excellent
– Good
– Fair
– Poor

Page 853 of 1114 ends

53.33% 8

40.00% 6

6.67% 1

0.00% 0
How important is it to you to improve
walking conditions along Halcyon Road?
Answered: 15 Skipped: 2
Total 15
Very important
Important
Not important
Very
unimportant
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Very important
– Important
– Not important
– Very unimportant
Customize Export
What discourages you the most from
walking along Halcyon Road? Please select
up to five (5) factors.

Answered: 15 Skipped: 2

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3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 19/27 Q29

66.67% 10

93.33% 14

60.00% 9

80.00% 12

0.00% 0

26.67% 4

6.67% 1

0.00% 0

6.67% 1

6.67% 1
Total Respondents: 15
Lack of or
incomplete...

Heavy/fast motor vehicl...

Dangerous
bevhavior by...

Lack of safe
crossings (e...

Lack of
time/distanc...

Lack of
amenities...

I don't feel
safe walking...

I have too many things ...

I am not
physically a...

Other (please
specify)
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Lack of or incomplete sidewalks
– Heavy/fast motor vehicle traffic
– Dangerous bevhavior by people driving (e.g., speeding, not yielding, etc.) – Lack of safe crossings (e.g. marked crosswalks or traffic signals) – Lack of time/distance to walk is too far
– Lack of amenities (benches, trees/shade, streetlights) – I don't feel safe walking (e.g. crime, personal safety) – I have too many things to carry
– I am not physically able to walk
– Other (please specify) Responses
Customize Export
Tell us about walking along Halcyon Road
Answered: 14 Skipped: 3

Page 855 of 1114 ends

3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 20/27 Q30

0.00%
0 57.14%
8 21.43%
3 21.43%
3 14 2.64

0.00%
0 14.29%
2 28.57%
4 57.14%
8 14 3.43

0.00%
0 57.14%
8 28.57%
4 14.29%
2 14 2.57

14.29%
2 42.86%
6 21.43%
3 21.43%
3 14 2.50

0.00%
0 53.85%
7 38.46%
5 7.69%
1 13 2.54
I can
conveniently...

I feel safe
from cars
I have enough
time to cros...

I am not
concerned ab...

Pedestrian
areas in ret...
0 1 2 3 4 5 6 7 8 9 10
– Strongly
agree –
Agree – Disagree – Strongly
disagree –
Total – Weighted
Average –
I can
conveniently
walk where I
want
–
I feel safe
from cars
–
I have
enough time
to cross
roads at
traffic
signals
–
I am not
concerned
about my
safety (i.e., I
feel safe
from other
people)
–
Pedestrian
areas in
retail or
commercial
areas are
well lit
–
Customize Export
How would you rank overall biking
conditions along Halcyon Road?
Answered: 15 Skipped: 2

Page 856 of 1114 ends

3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 21/27 Q31

0.00% 0

6.67% 1

20.00% 3

73.33% 11
Total 15
Excellent
Good
Fair
Poor
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Excellent
– Good
– Fair
– Poor
Customize Export

46.67% 7

26.67% 4

0.00% 0
How important is it to you to improve biking
conditions along Halcyon Road?
Answered: 15 Skipped: 2
Total 15
Very Important
Important
Not Important
Very
Unimportant
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Very Important
– Important
– Not Important
– Very Unimportant

Page 857 of 1114 ends

73.33% 11

86.67% 13

80.00% 12

66.67% 10

0.00% 0

20.00% 3

0.00% 0

6.67% 1

0.00% 0

0.00% 0
What discourages you most from biking
along Halcyon Road? Please select up to
five (5) factors.

Answered: 15 Skipped: 2
Total Respondents: 15
Lack of or
incomplete...

Heavy/fast motor vehicl...

Dangerous
behavior by...

Lack of safe
crossings...

Lack of
time/distanc...

No street
lights (e.g....

I don’t feel
safe biking...

I have too many things ...

No bicycle
racks or...

I am not
physically a...

I do not own a
bicycle in...

Other (please
specify)
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Lack of or incomplete bicycle route
– Heavy/fast motor vehicle traffic
– Dangerous behavior by people driving (e.g., speeding, not yielding, etc.) – Lack of safe crossings (e.g., marked lanes or traffic signal detection) – Lack of time/distance to bike is too far
– No street lights (e.g., too dark)
– I don’t feel safe biking (e.g., crime, personal safety) – I have too many things to carry
– No bicycle racks or insufficient bicycle parking at my destination – I am not physically able to bike
– I do not own a bicycle in working condition
– Other (please specify) Responses
Customize Export
Tell us about biking along Halcyon Road Page 858 of 1114 3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 23/27 Q34
Answered: 13 Skipped: 4

7.69%
1 30.77%
4 30.77%
4 30.77%
4 13 2.85

0.00%
0 0.00%
0 38.46%
5 61.54%
8 13 3.62

0.00%
0 61.54%
8 15.38%
2 23.08%
3 13 2.62

7.69%
1 30.77%
4 23.08%
3 38.46%
5 13 2.92
I can
conveniently...

I feel safe
from cars
I have enough
time to cros...

I am not
concerned ab...
0 1 2 3 4 5 6 7 8 9 10
– Strongly
agree –
Agree – Disagree – Strongly
disagree –
Total – Weighted
Average –
I can
conveniently
bike where I
want
–
I feel safe
from cars
–
I have
enough time
to cross
roads at
traffic
signals
–
I am not
concerned
about my
safety (i.e., I
feel safe
from other
people)
–
Customize Export
Tell us about driving along Halcyon Road
Answered: 16 Skipped: 1
I can
conveniently...

I am never
delayed by...

I am not
concerned ab...

The road is in
good condition
I do not drive
along Halcyo...
0 1 2 3 4 5 6 7 8 9 10

Page 859 of 1114 ends

18.75%
3 37.50%
6 43.75%
7 0.00%
0 16 2.25

18.75%
3 37.50%
6 31.25%
5 12.50%
2 16 2.38

12.50%
2 43.75%
7 31.25%
5 12.50%
2 16 2.44

0.00%
0 81.25%
13 12.50%
2 6.25%
1 16 2.25

0.00%
0 0.00%
0 8.33%
1 91.67%
11 12 3.92
– Strongly
agree –
Agree – Disagree – Strongly
disagree –
Total – Weighted
Average –
I can
conveniently
drive and
park where I
want along
the corridor
–
I am never
delayed by
traffic or
traffic signal
timing along
the corridor
–
I am not
concerned
about my
safety (I feel
safe)
–
The road is
in good
condition
–
I do not
drive along
Halcyon
Road
–
Customize Export

60.00% 9

20.00% 3

13.33% 2

6.67% 1
Do you agree or disagree
(strongly/somewhat) with the statement, “ I
would like to walk along Halcyon Road
more than I do now.”
Answered: 15 Skipped: 2
Total 15
Strongly agree
Somewhat agree
Somewhat
disagree
Strongly
disagree
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Strongly agree
– Somewhat agree
– Somewhat disagree
– Strongly disagree
Customize Export

Page 860 of 1114 ends

92.86% 13

21.43% 3

28.57% 4

35.71% 5

85.71% 12

21.43% 3

0.00% 0
What physical improvements would
encourage you to walk more along Halcyon
Road? Please select your top three.

Answered: 14 Skipped: 3
Total Respondents: 14
New or
improved...

Traffic
calming (slo...

Benches
Lighting
Landscaping
(e.g., stree...

Improved
crosswalk...

Access
improvements...

Other
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– New or improved sidewalks
– Traffic calming (slower speeds)
– Benches
– Lighting
– Landscaping (e.g., street trees, planted areas)
– Improved crosswalk facilities
– Access improvements for people with limited mobility (ADA compliance) – Other
Customize Export
Do you agree or disagree
(strongly/somewhat) with the statement, “ I
would like to bike along Halcyon Road more
than I do now.”
Answered: 15 Skipped: 2

Page 861 of 1114 ends

3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 26/27 Q38

60.00% 9

20.00% 3

6.67% 1

13.33% 2
Total 15
Strongly agree
Somewhat agree
Somewhat
disagree
Strongly
disagree
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– Strongly agree
– Somewhat agree
– Somewhat disagree
– Strongly disagree
Customize Export

64.29% 9

92.86% 13

7.14% 1

21.43% 3
What physical improvements would
encourage you to bike more along Halcyon
Road? Please select your top three.

Answered: 14 Skipped: 3
New or
improved...

Traffic
calming (slo...

Benches
Lighting
Landscaping
(e.g., stree...

Improved
crosswalk...

Access
improvements...
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– New or improved sidewalks
– Traffic calming (slower speeds)
– Benches
– Lighting

Page 862 of 1114 ends

3/13/2017 SurveyMonkey Analyze - Arroyo Grande Halcyon Road Complete Streets Plan (English) https://www.surveymonkey.com/analyze/4gnzhln5_2B1y6qJuhmwrQovZp_2B_2B2ybqDPPgtoHAq6Ijo_3D 27/27 °

Copyright © 1999-2017 SurveyMonkey
Community: Developers • Facebook • Twitter • LinkedIn • Our Blog • Google+ • YouTube About Us: Leadership Team • Board of Directors • Integrations • Newsroom • Office Locations • Jobs • Sitemap • Help Policies: Terms of Use • Privacy Policy • Anti-Spam Policy • Security Statement • Email Opt-In • Accessibility Language: English • Español • Português • Deutsch • Nederlands • Français • Русский • Italiano • Dansk • Svenska • 日本語 • 한국어 • 中文(繁體) • Türkçe • Norsk • Suomi
Q39

21.43% 3

57.14% 8

7.14% 1
Total Respondents: 14
Comments (3)
– Landscaping (e.g., street trees, planted areas)
– Improved crosswalk facilities
– Access improvements for people with limited mobility (ADA compliance) Customize Export

66.67% 6

33.33% 3

77.78% 7

44.44% 4

66.67% 6
What improvements would encourage you
to take transit to/from Halcyon Road more
often? Please select your top three.

Answered: 9 Skipped: 8
Total Respondents: 9
Comments (0)
More frequent
service
Better roadway
crossing and...

Better bus
stop ameniti...

More bus stops
Easier access
to bus route...
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Answer Choices – Responses –
– More frequent service
– Better roadway crossing and sidewalk access
– Better bus stop amenities (e.g., bus shelters, benches, lighting, landscaping) – More bus stops
Easier access to bus route information via website, cell phone, or LED reader board at bus stop
–

Page 863 of 1114 ends

Complete Streets Plan
Appendix G
Cost Estimates

Page 864 of 1114 ends

Preliminary Opinion of Costs (Capital & Support)
Halcyon Road - Context Zone 1
City of Arroyo Grande 10/12/2022
Construction Costs
No. Item Description Units Quantity Unit Cost Total
1 Traffic Control LS 1 $50,000.00 $50,000.00
2 Remove Tree EA 3 $2,000.00 $6,000.00
3 Remove Concrete (Curb & Gutter) LF 700 $33.00 $23,100.00 4 Remove Concrete Sidewalk SQFT 3450 $8.00 $27,600.00
5 Roadway Excavation CY 180 $235.00 $42,300.00
6 Class 2 Aggregate Base CY 230 $136.00 $31,280.00
7 Micro-Surfacing SY 9644 $3.60 $34,720.00
8 Hot Mix Asphalt (Type A) TON 120 $200.00 $24,000.00
9 Detectable Warning Surface SQFT 135 $50.00 $6,750.00
10 Minor Concrete (Curb) LF 65 $50.00 $3,250.00
11 Minor Concrete (Curb and Gutter) LF 500 $54.00 $27,000.00 12 Minor Concrete (Curb Ramp) SQFT 625 $18.00 $11,250.00 13 Minor Concrete (Sidewalk) SQFT 5080 $12.00 $60,960.00 14 Minor Concrete (Driveway) SQFT 250 $18.00 $4,500.00
15 Reconstruct Drainage Facility LS 1 $25,000.00 $25,000.00 16 Pavement Marker (Retroreflective) EA 65 $17.00 $1,106.77 17 Thermoplastic Traffic Stripe LF 6250 $2.00 $12,500.00 18 Thermoplastic Pavement Marking SQFT 2434 $8.00 $19,472.00 19 Signs EA 13 $382.00 $4,966.00
20 Traffic Signal Replacement EA 2 $500,000.00 $1,000,000.00 21 Planting and Irrigation SQFT 0 $10.00 $0.00
22 Mobilization LS 10% $1,365,800.00 $142,830.00
23 Minor/ Supplemental Items LS 25% $1,365,800.00 $357,075.00 24 Adjust Utilities to Grade LS 1 $62,500.00 $62,500.00 Subtotal (Construction Costs) $ 1,978,159.77
Construction Contingency 25% $ 357,063.69
Total Construction Costs $ 2,335,223.46
Total Construction Budget (Rounded) $ 2,335,300.00
Right of Way (Capital) and Utility Relocation Costs:
1 Right Of Way SQFT 2830 $20.00 $56,600.00
2 Utility Relocation (by Utility Owner) ALLOW 0 $0.00 $0.00 Total Right of Way (Capital) and Utility Relocation Costs $ 56,600.00 Total Project Capital Cost $ 2,391,900.00
Project Support Costs
1 Environmental Clearance (CEQA/NEPA) Capital Costs 5% $ 119,600.00 2 PS&E Con. Costs 12% $ 280,300.00
3 Right of Way Engineering & Acquisition 3-Parcels $15k/EA $ 45,000.00 4 Construction Support and Management Con. Costs 10% $ 233,600.00 Total Project Support Costs $ 678,500.00
Total Estimated Project Costs $ 3,070,400.00
Rounded $ 3,080,000.00
Assumptions:

1. Existing power/utility poles located ouside the limits of the roundabout to remain in place. 10/12/2022 Copy of 12568619_Halcyon CS Estimate_Zone1_rev2022-10-12.xlsx

Page 865 of 1114 ends

Preliminary Opinion of Costs (Capital & Support)
Halcyon Road - Context Zone 2 (outside Roundabout Option) City of Arroyo Grande 6/22/2018
0-Jan-1900
Construction Costs (Outside Roundabout limits )
No. Item Description Units Quantity Unit Cost Total
1 Traffic Control LS 1 $50,000.00 $50,000.00
2 Remove Tree EA 0 $2,000.00 $0.00
3 Remove Concrete (Curb & Gutter) LF 110 $33.00 $3,630.00 4 Remove Concrete Sidewalk SQFT 400 $8.00 $3,200.00
5 Roadway Excavation CY 220 $235.00 $51,700.00
6 Class 2 Aggregate Base CY 200 $136.00 $27,200.00
7 Micro-Surfacing SY 15133 $3.60 $54,480.00
8 Hot Mix Asphalt (Type A) TON 170 $200.00 $34,000.00
9 Retaiing Wall SQFT 0 $90.00 $0.00
10 Detectable Warning Surface SQFT 150 $50.00 $7,500.00 11 Minor Concrete (Curb) LF 595 $50.00 $29,750.00
12 Minor Concrete (Curb and Gutter) LF 340 $54.00 $18,360.00 13 Minor Concrete (Curb Ramp) SQFT 615 $18.00 $11,070.00 14 Minor Concrete (Sidewalk) SQFT 2080 $12.00 $24,960.00 15 Minor Concrete (Driveway) SQFT 0 $18.00 $0.00
16 Minor Concrete (Miscellaneous Construction) SQFT 630 $20.00 $12,600.00 17 Reconstruct Drainage Facility LS 1 $25,000.00 $25,000.00 18 Pavement Marker (Retroreflective) EA 124 $17.00 $2,108.40 19 Thermoplastic Traffic Stripe LF 11906 $2.00 $23,812.50 20 Thermoplastic Pavement Marking SQFT 2098 $8.00 $16,784.00 21 Signs EA 10 $382.00 $3,820.00
22 Lighting System LS 0 $0.00 $0.00
23 Planting and Irrigation SQFT 1265 $10.00 $12,650.00
24 Mobilization LS 10% $425,200.00 $42,520.00
25 Minor/ Supplemental Items LS 25% $425,200.00 $106,300.00 26 Adjust Utilities to Grade LS 1 $62,500.00 $62,500.00 Subtotal (Construction Costs) $ 623,944.90
Construction Contingency 25% 106,281.22 $
Total Construction Costs $ 730,226.12
Total Construction Budget (Rounded) $ 730,300.00
Right of Way (Capital) and Utility Relocation Costs (Outside Roundabout Limits) 1 Right Of Way SQFT 1050 $20.00 $21,000.00
2 Utility Relocation (by Utility Owner) ALLOW 0 $0.00 $0.00 Total Right of Way (Capital) and Utility Relocation Costs $ 21,000.00 Total Project Capital Cost $ 751,300.00
Project Support Costs (Outside Roundabout Limits )
1 Environmental Clearance (CEQA/NEPA) Capital Costs 5% $ 37,600.00 2 PS&E Con. Costs 12% $ 87,700.00
3 Right of Way Engineering & Acquisition 2-Parcels $15k/EA $ 30,000.00 4 Construction Support and Management Con. Costs 10% $ 73,100.00 Total Project Support Costs $ 228,400.00
Total Estimated Project Costs $ 979,700.00
Rounded $ 980,000.00
Assuptions:

1. Existing power/utility poles located outside the limits of the roundabout to remain in place. 12/22/2022 12568619_Halcyon CS Estimate_Zone2 Outside RAB_rev0610.xlsx

Page 866 of 1114 ends

Preliminary Opinion of Costs (Capital & Support)
Fair Oaks Avenue / Halcyon Road Intersection Alt with Road Diet - Context Zone 2 City of Arroyo Grande 10/12/2022
Construction Costs (Signal only )
No. Item Description Units Quantity Unit Cost Total
1 Traffic Control LS 1 $100,000.00 $100,000.00
2 Remove Tree EA 3 $2,000.00 $6,000.00
3 Remove Concrete (Curb & Gutter) LF 291 $33.00 $9,592.77 4 Remove Concrete Sidewalk SQFT 2000 $8.00 $16,000.00
5 Roadway Excavation CY 120 $235.00 $28,200.00
6 Class 2 Aggregate Base CY 100 $136.00 $13,600.00
7 Micro-Surfacing SY 6155 $3.60 $22,159.47
8 Hot Mix Asphalt (Type A) TON 70 $200.00 $14,000.00
9 Retaining Wall SQFT 0 $120.00 $0.00
10 Detectable Warning Surface SQFT 113 $50.00 $5,646.50 11 Minor Concrete (Curb) LF 0 $50.00 $0.00
12 Minor Concrete (Curb - Ramp) SQFT 420 $18.00 $7,560.00 13 Minor Concrete (Curb and Gutter) LF 286 $54.00 $15,419.16 14 Minor Concrete (Stamped Concrete - Truck Apron) CY 0 $1,200.00 $0.00 15 Minor Concrete (Sidewalk) SQFT 1330 $12.00 $15,965.49 16 Minor Concrete (Cross Gutter) SQFT 0 $25.00 $0.00
17 Minor Concrete (Driveway) SQFT 0 $18.00 $0.00
18 Drainage Facilities LS 1 $40,000.00 $40,000.00
19 Thermoplastic Traffic Stripe LF 6634 $2.00 $13,267.28 20 Thermoplastic Pavement Marking SQFT 5925 $8.00 $47,397.89 21 Signs EA 12 $382.00 $4,584.00
22 Traffic Signal replacement EA 1 $500,000.00 $500,000.00 23 Planting and Irrigation SQFT 0 $10.00 $0.00
24 Mobilization LS 10% $809,400.00 $80,940.00
25 Minor/ Supplemental Items % 25% $809,400.00 $202,350.00 26 Adjust Utilities LS 1 $50,000.00 $50,000.00
26 Relocate Backflow and Water Meter EA 0 $30,000.00 $0.00 Subtotal (Construction Costs) $ 1,192,682.56
Construction Contingency 25% 298,170.64 $
Total Construction Costs $ 1,490,853.20
Total Construction Budget (Rounded) $ 1,490,900.00
Right of Way (Capital) and Utility Relocation Costs (Signal Only):
1 Right Of Way SQFT 100 $20.00 $2,000.00
2 Utility Relocation (by Utility Owner) ALLOW 0 $300,000.00 $0.00 Total Right of Way (Capital) and Utility Relocation Costs $ 2,000.00 Total Project Capital Cost $ 1,492,900.00
Project Support Costs (Roundabout Only )
1 Environmental Clearance (CEQA/NEPA) Capital Costs 5% $ 74,700.00 2 PS&E Con. Costs 7.5% $ 111,900.00
3 Right of Way Engineering & Acquisition 1-parcel $15k/EA $ 15,000.00 4 Construction Support and Management Con. Costs 10% $ 149,100.00 Total Project Support Costs $ 350,700.00
Total Estimated Project Costs $ 1,843,600.00
Rounded $ 1,850,000.00
12/22/2022 12568619_Halcyon CS Estimate_Zone2 Signal Alternative_2.xlsx

Page 867 of 1114 ends

Preliminary Opinion of Costs (Capital & Support)
Fair Oaks Avenue / Halcyon Road ROUNDABOUT - Context Zone 2 City of Arroyo Grande 5/16/2022
0-Jan-1900
Construction Costs (Roundabout only ) updated 6/22/18_DZ No. Item Description Units Quantity Unit Cost Total
1 Traffic Control LS 1 $200,000.00 $200,000.00
2 Remove Tree EA 9 $2,000.00 $18,000.00
3 Remove Concrete (Curb & Gutter) LF 1410 $33.00 $46,530.00 4 Remove Concrete Sidewalk SQFT 7640 $8.00 $61,120.00
5 Roadway Excavation CY 1620 $235.00 $380,700.00
6 Class 2 Aggregate Base CY 1130 $136.00 $153,680.00
7 Hot Mix Asphalt (Type A) TON 930 $200.00 $186,000.00
9 Detectable Warning Surface SQFT 480 $50.00 $24,000.00 10 Minor Concrete (Curb) LF 1040 $50.00 $51,995.50
11 Minor Concrete (Curb - Truck Apron) CY 14 $700.00 $9,800.00 12 Minor Concrete (Curb and Gutter) LF 1344 $54.00 $72,570.06 13 Minor Concrete (Stamped Concrete - Truck Apron) CY 50 $1,200.00 $60,000.00 14 Minor Concrete (Sidewalk) SQFT 10986 $12.00 $131,836.44 15 Minor Concrete (Bus Pad) SQFT 1639 $25.00 $40,985.25 16 Minor Concrete (Driveway) SQFT 388 $18.00 $6,978.06
17 Reconstruct Drainage Facility LS 1 $75,000.00 $75,000.00 18 Thermoplastic Traffic Stripe LF 6300 $2.00 $12,600.00 19 Thermoplastic Pavement Marking SQFT 244 $8.00 $1,952.00 20 Signs EA 50 $382.00 $19,100.00
21 Lighting System LS 1 $112,500.00 $112,500.00
22 Planting and Irrigation SQFT 10400 $10.00 $104,000.00 23 Mobilization LS 10% $1,631,900.00 $163,190.00
24 Minor/ Supplemental Items LS 25% $1,631,900.00 $407,975.00 25 Adjust Utilities to Grade LS 1 $62,500.00 $62,500.00 Subtotal (Construction Costs) $ 2,403,012.31
Construction Contingency 25% 407,961.83 $
Total Construction Costs $ 2,810,974.14
Total Construction Budget (Rounded) $ 2,811,000.00
Right of Way (Capital) and Utility Relocation Costs (Roundabout Only):
1 Right Of Way SQFT 9260 $20.00 $185,200.00
2 Utility Relocation (by Utility Owner) ALLOW 1 $200,000.00 $200,000.00 Total Right of Way (Capital) and Utility Relocation Costs $ 385,200.00 Total Project Capital Cost $ 3,196,200.00
Project Support Costs (Roundabout Only )
1 Environmental Clearance (CEQA/NEPA) Capital Costs 5% $ 159,900.00 2 PS&E Con. Costs 7.5% $ 210,900.00
3 Right of Way Engineering & Acquisition 4-Parcels $15k/EA $ 60,000.00 4 Construction Support and Management Con. Costs 10% $ 281,100.00 Total Project Support Costs $ 711,900.00
Total Estimated Project Costs $ 3,908,100.00
Rounded $ 3,910,000.00
12/22/2022 12568619_Halcyon CS Estimate_Zone2 RAB_rev0610.xlsx

Page 868 of 1114 ends

Preliminary Opinion of Costs (Capital & Support)
Halcyon Road - Context Zone 3
City of Arroyo Grande 5/16/2022
Construction Costs
No. Item Description Units Quantity Unit Cost Total
1 Traffic Control LS 1 $42,000.00 $42,000.00
2 Remove Tree EA 4 $2,000.00 $8,000.00
3 Remove Concrete (Curb & Gutter) LF 750 $33.00 $24,750.00 4 Remove Concrete Sidewalk SQFT 3270 $8.00 $26,160.00
5 Roadway Excavation CY 190 $235.00 $44,650.00
6 Class 2 Aggregate Base CY 290 $136.00 $39,440.00
7 Micro-Surfacing SY 12134 $3.60 $43,681.96
8 Hot Mix Asphalt (Type A) TON 140 $200.00 $28,000.00
9 Retaining Wall SQFT 1250 $120.00 $150,000.00
10 Detectable Warning Surface SQFT 276 $50.00 $13,800.00 11 Minor Concrete (Curb) LF 710 $50.00 $35,500.00
12 Minor Concrete (Curb and Gutter) LF 805 $54.00 $43,470.00 13 Minor Concrete (Curb Ramp) SQFT 5600 $18.00 $100,800.00 14 Minor Concrete (Sidewalk) SQFT 4583 $12.00 $54,996.00 15 Minor Concrete (Driveway) SQFT 347 $18.00 $6,246.00
16 Minor Concrete (Miscellaneous Construction) SQFT 1400 $20.00 $28,000.00 17 Reconstruct Drainage Facility LS 1 $45,000.00 $45,000.00 18 Pavement Marker (Retroreflective) EA 96 $17.00 $1,632.00 19 Thermoplastic Traffic Stripe LF 9203 $2.00 $18,406.00 20 Thermoplastic Pavement Marking SQFT 3075 $8.00 $24,602.00 21 Signs EA 12 $382.00 $4,584.00
22 Signals/Lighting - Rapid Flashing Beacons LS 2 $7,500.00 $15,000.00 23 Planting and Irrigation SQFT 1940 $10.00 $19,400.00
24 Mobilization LS 10% $832,200.00 $83,220.00
25 Minor/ Supplemental Items LS 25% $832,200.00 $208,050.00 26 Adjust Utilities to Grade LS 1 $56,000.00 $56,000.00 Subtotal (Construction Costs) $ 1,165,387.96
Construction Contingency 25% 208,029.49 $
Total Construction Costs $ 1,373,417.46
Total Construction Budget (Rounded) $ 1,373,500.00
Right of Way (Capital) and Utility Relocation Costs:
1 Right Of Way SQFT 1400 $20.00 $28,000.00
2 Utility Relocation (by Utility Owner) ALLOW 0 $0.00 $0.00 Total Right of Way (Capital) and Utility Relocation Costs $ 28,000.00 Total Project Capital Cost $ 1,401,500.00
Project Support Costs
1 Environmental Clearance (CEQA/NEPA) Capital Costs 5% $ 70,100.00 2 PS&E Con. Costs 12% $ 164,900.00
3 Right of Way Engineering & Acquisition 2-Parcels $15k/EA $ 30,000.00 4 Construction Support and Management Con. Costs 10% $ 137,400.00 Total Project Support Costs $ 402,400.00
Total Estimated Project Costs $ 1,803,900.00
Rounded $ 1,810,000.00
Assuptions:

1. Existing power/utility poles located outside the limits of the Roundabout to remain in place. 12/22/2022 12568619_Halcyon CS Estimate_Zone3_rev0610.xlsx

Page 869 of 1114 ends

Preliminary Opinion of Costs (Capital Only)
Halcyon Road - Context Zone 3 - Fair Oaks to Virginia for SLOCOG CBG City of Arroyo Grande 5/5/2022
Construction Costs Only:

No. Item Description Units Quantity Unit Cost Total
1 Traffic Control LS 1 42,000.00 $ $ 42,000.00
2 Remove Tree EA 0 2,000.00 $ -$
3 Remove Concrete (Curb & Gutter) LF 750 33.00 $ 24,750.00 $ 4 Remove Concrete Sidewalk SQFT 3270 8.00 $ 26,160.00 $ 5 Roadway Excavation CY 130 235.00 $ $ 30,550.00
6 Class 2 Aggregate Base CY 170 136.00 $ $ 23,120.00
7 Micro-Surfacing SY 12134 3.60 $ 43,682.40 $
8 Hot Mix Asphalt (Type A) TON 100 200.00 $ $ 20,000.00 9 Retaining Wall SQFT 0 120.00 $ -$
10 Detectable Warning Surface SQFT 216 50.00 $ 10,800.00 $ 11 Minor Concrete (Curb) LF 710 50.00 $ 35,500.00 $
12 Minor Concrete (Curb and Gutter) LF 148 54.00 $ $ 7,992.00 13 Minor Concrete (Curb Ramp) SQFT 3850 18.00 $ 69,300.00 $ 14 Minor Concrete (Sidewalk) SQFT 105 12.00 $ $ 1,260.00 15 Minor Concrete (Driveway) SQFT 0 18.00 $ -$
16 Minor Concrete (Cross Gutters) SQFT 1400 20.00 $ 28,000.00 $ 17 Storm Drain System LS 1 20,000.00 $ $ 20,000.00
18 Pavement Marker (Retroreflective) EA 69 17.00 $ $ 1,173.00 19 Thermoplastic Traffic Stripe LF 7000 2.00 $ 14,000.00 $ 20 Thermoplastic Pavement Marking SQFT 1750 8.00 $ 14,000.00 $ 21 Signs EA 10 382.00 $ $ 3,820.00
22 Rapid Flashing Beacons LS 2 7,500.00 $ $ 15,000.00
23 Median Zero Scape SQFT 1940 10.00 $ 19,400.00 $
24 Mobilization LS 10% 408,500.00 $ $ 40,850.00
25 Minor/ Supplemental Items LS 25% 408,500.00 $ $ 102,125.00 26 Adjust Covers LS 1 6,000.00 $ $ 6,000.00
Subtotal (Construction Costs) $ 599,482.40
Construction Contingency 25% 149,870.60 $
Construction Support (CE) 0% -$
Total Construction & Support $ 749,353.00
Total Construction Budget (Rounded) $ 749,400.00
Assuptions:

1. Construction Support Not Included

Page 870 of 1114 ends

Complete Streets Plan
Appendix H
LOS and Queue Reports

Page 871 of 1114 ends

HCM 6th Signalized Intersection Summary Halcyon Complete Street Plan 31: Halcyon Rd & Fair Oaks Ave Existing Conditions 2019 - AM Peak Arroyo Grande 7:30 am 11/15/2019 Existing Conditions 2019 Synchro 10 Report GHD Page 1
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations
Traffic Volume (veh/h) 58 179 28 164 170 212 19 523 185 151 236 38 Future Volume (veh/h) 58 179 28 164 170 212 19 523 185 151 236 38 Initial Q (Qb), veh 000000000000
Ped-Bike Adj(A_pbT) 1.00 0.98 1.00 0.97 1.00 0.99 1.00 1.00 Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 Adj Flow Rate, veh/h 76 236 30 216 224 51 25 688 209 199 311 39 Peak Hour Factor 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 Percent Heavy Veh, % 222222222222
Cap, veh/h 98 304 39 255 515 425 47 877 266 248 1400 174 Arrive On Green 0.06 0.19 0.19 0.14 0.28 0.28 0.03 0.33 0.33 0.14 0.44 0.44 Sat Flow, veh/h 1781 1623 206 1781 1870 1544 1781 2677 813 1781 3180 395 Grp Volume(v), veh/h 76 0 266 216 224 51 25 457 440 199 173 177 Grp Sat Flow(s),veh/h/ln 1781 0 1829 1781 1870 1544 1781 1777 1714 1781 1777 1798 Q Serve(g_s), s 3.5 0.0 11.5 9.8 8.2 2.1 1.1 19.3 19.3 9.0 5.0 5.1 Cycle Q Clear(g_c), s 3.5 0.0 11.5 9.8 8.2 2.1 1.1 19.3 19.3 9.0 5.0 5.1 Prop In Lane 1.00 0.11 1.00 1.00 1.00 0.47 1.00 0.22
Lane Grp Cap(c), veh/h 98 0 343 255 515 425 47 582 561 248 782 792 V/C Ratio(X) 0.77 0.00 0.78 0.85 0.44 0.12 0.53 0.78 0.78 0.80 0.22 0.22 Avail Cap(c_a), veh/h 355 0 574 355 587 485 678 646 623 678 782 792 HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Upstream Filter(I) 1.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Uniform Delay (d), s/veh 38.6 0.0 32.0 34.6 24.7 22.5 39.8 25.2 25.2 34.5 14.4 14.4 Incr Delay (d2), s/veh 4.8 0.0 1.4 9.7 0.2 0.0 10.8 7.5 7.7 7.1 0.3 0.3 Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 %ile BackOfQ(50%),veh/ln 1.6 0.0 5.1 4.8 3.5 0.7 0.6 9.1 8.8 4.3 2.0 2.0 Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 43.4 0.0 33.4 44.3 24.9 22.5 50.6 32.7 32.9 41.7 14.7 14.7 LnGrp LOS D A CDCCDCCDBB
Approach Vol, veh/h 342 491 922 549
Approach Delay, s/veh 35.6 33.2 33.3 24.5
Approach LOS DCCC
Timer - Assigned Phs 12345678
Phs Duration (G+Y+Rc), s 15.0 32.0 8.1 27.7 5.7 41.4 15.3 20.4 Change Period (Y+Rc), s 3.5 4.9 3.5 4.9 3.5 4.9 3.5 * 4.9 Max Green Setting (Gmax), s 31.5 30.1 16.5 26.0 31.5 30.1 16.5 * 26 Max Q Clear Time (g_c+I1), s 11.0 21.3 5.5 10.2 3.1 7.1 11.8 13.5 Green Ext Time (p_c), s 0.7 5.9 0.1 0.8 0.1 4.0 0.1 0.8 Intersection Summary
HCM 6th Ctrl Delay 31.5
HCM 6th LOS C
Notes
User approved pedestrian interval to be less than phase max green. * HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.

Page 872 of 1114 ends

HCM 6th Signalized Intersection Summary Halcyon Complete Street Plan 31: Halcyon Rd & Fair Oaks Ave Existing Conditions 2019 - PM Peak Arroyo Grande 7:30 am 11/15/2019 Existing Conditions 2019 Synchro 10 Report GHD Page 1
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations
Traffic Volume (veh/h) 28 124 17 205 181 98 18 286 172 117 487 45 Future Volume (veh/h) 28 124 17 205 181 98 18 286 172 117 487 45 Initial Q (Qb), veh 000000000000
Ped-Bike Adj(A_pbT) 1.00 0.98 1.00 0.97 1.00 0.99 1.00 1.00 Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 Adj Flow Rate, veh/h 29 128 14 211 187 32 19 295 103 121 502 41 Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 Percent Heavy Veh, % 222222222222
Cap, veh/h 60 226 25 269 475 391 42 676 231 166 1101 90 Arrive On Green 0.03 0.14 0.14 0.15 0.25 0.25 0.02 0.26 0.26 0.09 0.33 0.33 Sat Flow, veh/h 1781 1652 181 1781 1870 1540 1781 2590 884 1781 3327 271 Grp Volume(v), veh/h 29 0 142 211 187 32 19 200 198 121 267 276 Grp Sat Flow(s),veh/h/ln 1781 0 1833 1781 1870 1540 1781 1777 1697 1781 1777 1821 Q Serve(g_s), s 0.7 0.0 3.4 5.3 3.9 0.7 0.5 4.4 4.6 3.1 5.6 5.6 Cycle Q Clear(g_c), s 0.7 0.0 3.4 5.3 3.9 0.7 0.5 4.4 4.6 3.1 5.6 5.6 Prop In Lane 1.00 0.10 1.00 1.00 1.00 0.52 1.00 0.15
Lane Grp Cap(c), veh/h 60 0 250 269 475 391 42 464 443 166 588 603 V/C Ratio(X) 0.49 0.00 0.57 0.79 0.39 0.08 0.46 0.43 0.45 0.73 0.45 0.46 Avail Cap(c_a), veh/h 627 0 1017 627 1037 854 1197 1141 1090 1197 1141 1169 HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Upstream Filter(I) 1.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Uniform Delay (d), s/veh 22.3 0.0 18.9 19.2 14.5 13.3 22.6 14.4 14.5 20.7 12.4 12.4 Incr Delay (d2), s/veh 2.3 0.0 0.8 1.9 0.2 0.0 9.1 1.5 1.7 7.2 1.3 1.3 Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 %ile BackOfQ(50%),veh/ln 0.3 0.0 1.3 2.1 1.4 0.2 0.3 1.8 1.8 1.5 2.0 2.1 Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 24.5 0.0 19.7 21.1 14.7 13.4 31.7 15.9 16.1 27.9 13.6 13.6 LnGrp LOS C A B C B B C B B C B B
Approach Vol, veh/h 171 430 417 664
Approach Delay, s/veh 20.5 17.7 16.7 16.2
Approach LOS C B B B
Timer - Assigned Phs 12345678
Phs Duration (G+Y+Rc), s 7.9 17.1 5.1 16.8 4.6 20.4 10.6 11.3 Change Period (Y+Rc), s 3.5 4.9 3.5 4.9 3.5 4.9 3.5 * 4.9 Max Green Setting (Gmax), s 31.5 30.1 16.5 26.0 31.5 30.1 16.5 * 26 Max Q Clear Time (g_c+I1), s 5.1 6.6 2.7 5.9 2.5 7.6 7.3 5.4 Green Ext Time (p_c), s 0.4 4.9 0.0 0.7 0.0 6.5 0.2 0.4 Intersection Summary
HCM 6th Ctrl Delay 17.2
HCM 6th LOS B
Notes
User approved pedestrian interval to be less than phase max green. * HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.

Page 873 of 1114 ends

HCM 6th Signalized Intersection Summary Halcyon Complete Street Plan 31: Halcyon Rd & Fair Oaks Ave 2040 Conditions - No Build- AM Peak 10/12/2022 Synchro 10 Report
GHD
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations
Traffic Volume (veh/h) 60 185 30 180 175 225 20 575 200 165 255 40 Future Volume (veh/h) 60 185 30 180 175 225 20 575 200 165 255 40 Initial Q (Qb), veh 000000000000
Ped-Bike Adj(A_pbT) 1.00 0.98 1.00 0.97 1.00 0.99 1.00 1.00 Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 Adj Flow Rate, veh/h 79 243 32 237 230 68 26 757 229 217 336 42 Peak Hour Factor 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 Percent Heavy Veh, % 222222222222
Cap, veh/h 102 304 40 272 531 438 47 868 263 264 1417 176 Arrive On Green 0.06 0.19 0.19 0.15 0.28 0.28 0.03 0.32 0.32 0.15 0.45 0.45 Sat Flow, veh/h 1781 1615 213 1781 1870 1545 1781 2680 811 1781 3181 394 Grp Volume(v), veh/h 79 0 275 237 230 68 26 502 484 217 186 192 Grp Sat Flow(s),veh/h/ln 1781 0 1828 1781 1870 1545 1781 1777 1714 1781 1777 1798 Q Serve(g_s), s 3.9 0.0 12.9 11.7 9.0 3.0 1.3 23.9 23.9 10.6 5.8 5.9 Cycle Q Clear(g_c), s 3.9 0.0 12.9 11.7 9.0 3.0 1.3 23.9 23.9 10.6 5.8 5.9 Prop In Lane 1.00 0.12 1.00 1.00 1.00 0.47 1.00 0.22
Lane Grp Cap(c), veh/h 102 0 344 272 531 438 47 576 555 264 791 801 V/C Ratio(X) 0.77 0.00 0.80 0.87 0.43 0.16 0.55 0.87 0.87 0.82 0.24 0.24 Avail Cap(c_a), veh/h 327 0 529 327 541 447 624 595 574 624 791 801 HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Upstream Filter(I) 1.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Uniform Delay (d), s/veh 41.8 0.0 34.9 37.2 26.3 24.1 43.2 28.6 28.6 37.2 15.4 15.5 Incr Delay (d2), s/veh 4.6 0.0 2.4 16.9 0.2 0.1 11.5 14.4 14.8 7.6 0.4 0.4 Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 %ile BackOfQ(50%),veh/ln 1.8 0.0 5.9 6.3 4.0 1.1 0.7 12.2 11.9 5.1 2.4 2.4 Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 46.4 0.0 37.3 54.1 26.5 24.2 54.7 43.0 43.5 44.7 15.8 15.8 LnGrp LOS D A DDCCDDDDBB
Approach Vol, veh/h 354 535 1012 595
Approach Delay, s/veh 39.3 38.4 43.5 26.4
Approach LOS DDDC
Timer - Assigned Phs 12345678
Phs Duration (G+Y+Rc), s 16.8 34.0 8.7 30.4 5.9 45.0 17.3 21.8 Change Period (Y+Rc), s 3.5 4.9 3.5 4.9 3.5 4.9 3.5 * 4.9 Max Green Setting (Gmax), s 31.5 30.1 16.5 26.0 31.5 30.1 16.5 * 26 Max Q Clear Time (g_c+I1), s 12.6 25.9 5.9 11.0 3.3 7.9 13.7 14.9 Green Ext Time (p_c), s 0.7 3.2 0.1 0.8 0.1 4.3 0.1 0.8 Intersection Summary
HCM 6th Ctrl Delay 37.8
HCM 6th LOS D
Notes
User approved pedestrian interval to be less than phase max green. * HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.

Page 874 of 1114 ends

HCM 6th Signalized Intersection Summary
31: Halcyon Rd & Fair Oaks Ave 10/12/2022
Arroyo Grande 7:30 am 11/15/2019 Existing Conditions 2019 Synchro 10 Report GHD Page 1
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations
Traffic Volume (veh/h) 30 130 0 225 185 115 20 335 190 135 475 45 Future Volume (veh/h) 30 130 0 225 185 115 20 335 190 135 475 45 Initial Q (Qb), veh 000000000000
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 0.97 1.00 0.99 1.00 1.00 Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 Adj Flow Rate, veh/h 31 134 0 232 191 37 21 345 132 139 490 41 Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 Percent Heavy Veh, % 222222222222
Cap, veh/h 62 238 0 289 476 392 45 707 266 190 1203 100 Arrive On Green 0.03 0.13 0.00 0.16 0.25 0.25 0.03 0.28 0.28 0.11 0.36 0.36 Sat Flow, veh/h 1781 1870 0 1781 1870 1540 1781 2517 946 1781 3320 277 Grp Volume(v), veh/h 31 134 0 232 191 37 21 242 235 139 262 269 Grp Sat Flow(s),veh/h/ln 1781 1870 0 1781 1870 1540 1781 1777 1686 1781 1777 1820 Q Serve(g_s), s 0.9 3.5 0.0 6.5 4.4 1.0 0.6 5.9 6.1 3.9 5.7 5.8 Cycle Q Clear(g_c), s 0.9 3.5 0.0 6.5 4.4 1.0 0.6 5.9 6.1 3.9 5.7 5.8 Prop In Lane 1.00 0.00 1.00 1.00 1.00 0.56 1.00 0.15
Lane Grp Cap(c), veh/h 62 238 0 289 476 392 45 499 474 190 644 659 V/C Ratio(X) 0.50 0.56 0.00 0.80 0.40 0.09 0.47 0.48 0.50 0.73 0.41 0.41 Avail Cap(c_a), veh/h 565 935 0 565 935 770 1079 1029 976 1079 1029 1053 HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Upstream Filter(I) 1.00 1.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Uniform Delay (d), s/veh 24.7 21.3 0.0 21.0 16.1 14.8 25.0 15.6 15.6 22.5 12.4 12.4 Incr Delay (d2), s/veh 2.3 0.8 0.0 2.0 0.2 0.0 8.9 1.7 1.9 6.4 1.0 1.0 Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 %ile BackOfQ(50%),veh/ln 0.4 1.5 0.0 2.6 1.7 0.3 0.4 2.4 2.4 1.8 2.1 2.2 Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 27.0 22.1 0.0 23.0 16.3 14.8 33.9 17.3 17.5 28.9 13.4 13.4 LnGrp LOS C C A C B B C B B C B B
Approach Vol, veh/h 165 460 498 670
Approach Delay, s/veh 23.0 19.5 18.1 16.6
Approach LOS C B B B
Timer - Assigned Phs 12345678
Phs Duration (G+Y+Rc), s 9.0 19.5 5.3 18.1 4.8 23.7 11.9 11.5 Change Period (Y+Rc), s 3.5 4.9 3.5 4.9 3.5 4.9 3.5 * 4.9 Max Green Setting (Gmax), s 31.5 30.1 16.5 26.0 31.5 30.1 16.5 * 26 Max Q Clear Time (g_c+I1), s 5.9 8.1 2.9 6.4 2.6 7.8 8.5 5.5 Green Ext Time (p_c), s 0.5 5.8 0.0 0.7 0.0 6.3 0.2 0.4 Intersection Summary
HCM 6th Ctrl Delay 18.4
HCM 6th LOS B
Notes
User approved pedestrian interval to be less than phase max green. * HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.

Page 875 of 1114 ends

HCM 6th Signalized Intersection Summary Halcyon Complete Street Plan 31: Halcyon Rd & Fair Oaks Ave 2040 Conditions - Road Diet Alt 3 - AM Peak 10/12/2022 Synchro 11 Report
GHD
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations
Traffic Volume (veh/h) 150 220 30 180 175 225 20 485 165 165 255 40 Future Volume (veh/h) 150 220 30 180 175 225 20 485 165 165 255 40 Initial Q (Qb), veh 000000000000
Ped-Bike Adj(A_pbT) 1.00 0.97 1.00 0.95 1.00 0.99 1.00 1.00 Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 Adj Flow Rate, veh/h 197 289 34 237 230 38 26 638 125 217 336 17 Peak Hour Factor 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 0.76 Percent Heavy Veh, % 222222222222
Cap, veh/h 224 325 38 264 413 331 44 698 586 240 904 764 Arrive On Green 0.13 0.20 0.20 0.15 0.22 0.22 0.02 0.37 0.37 0.13 0.48 0.48 Sat Flow, veh/h 1781 1637 193 1781 1870 1499 1781 1870 1570 1781 1870 1582 Grp Volume(v), veh/h 197 0 323 237 230 38 26 638 125 217 336 17 Grp Sat Flow(s),veh/h/ln 1781 0 1830 1781 1870 1499 1781 1870 1570 1781 1870 1582 Q Serve(g_s), s 12.5 0.0 19.8 15.1 12.6 2.3 1.7 37.4 6.2 13.8 13.0 0.6 Cycle Q Clear(g_c), s 12.5 0.0 19.8 15.1 12.6 2.3 1.7 37.4 6.2 13.8 13.0 0.6 Prop In Lane 1.00 0.11 1.00 1.00 1.00 1.00 1.00 1.00
Lane Grp Cap(c), veh/h 224 0 363 264 413 331 44 698 586 240 904 764 V/C Ratio(X) 0.88 0.00 0.89 0.90 0.56 0.11 0.60 0.91 0.21 0.91 0.37 0.02 Avail Cap(c_a), veh/h 227 0 413 271 463 371 85 732 615 240 904 764 HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Upstream Filter(I) 1.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Uniform Delay (d), s/veh 49.5 0.0 44.9 48.2 39.9 35.9 55.6 34.4 24.6 49.1 18.8 15.6 Incr Delay (d2), s/veh 28.7 0.0 17.7 28.5 0.4 0.1 14.6 16.8 0.4 34.2 0.6 0.0 Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 %ile BackOfQ(50%),veh/ln 7.3 0.0 10.7 8.8 5.8 0.9 0.9 20.1 2.4 8.4 5.7 0.2 Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 78.2 0.0 62.6 76.7 40.3 35.9 70.3 51.1 25.0 83.4 19.4 15.6 LnGrp LOS EAEEDDEDCFBB
Approach Vol, veh/h 520 505 789 570
Approach Delay, s/veh 68.5 57.1 47.6 43.6
Approach LOS E E D D
Timer - Assigned Phs 12345678
Phs Duration (G+Y+Rc), s 19.0 47.9 18.0 30.3 6.3 60.5 20.6 27.8 Change Period (Y+Rc), s 3.5 4.9 3.5 4.9 3.5 4.9 3.5 * 4.9 Max Green Setting (Gmax), s 15.5 45.1 14.7 28.5 5.5 55.1 17.5 * 26 Max Q Clear Time (g_c+I1), s 15.8 39.4 14.5 14.6 3.7 15.0 17.1 21.8 Green Ext Time (p_c), s 0.0 3.6 0.0 0.8 0.0 4.9 0.0 0.5 Intersection Summary
HCM 6th Ctrl Delay 53.2
HCM 6th LOS D
Notes
User approved pedestrian interval to be less than phase max green. * HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.

Page 876 of 1114 ends

HCM 6th Signalized Intersection Summary Halcyon Complete Street Plan 31: Halcyon Rd & Fair Oaks Ave 2040 Conditions with Road Diet Alt 3 - PM Peak 10/12/2022 Synchro 11 Report
GHD
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations
Traffic Volume (veh/h) 110 175 15 225 185 115 20 255 145 135 475 45 Future Volume (veh/h) 110 175 15 225 185 115 20 255 145 135 475 45 Initial Q (Qb), veh 000000000000
Ped-Bike Adj(A_pbT) 1.00 0.97 1.00 0.95 1.00 0.99 1.00 1.00 Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 1870 Adj Flow Rate, veh/h 113 180 13 232 191 29 21 263 41 139 490 18 Peak Hour Factor 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 Percent Heavy Veh, % 222222222222
Cap, veh/h 146 275 20 283 443 356 44 566 474 183 712 602 Arrive On Green 0.08 0.16 0.16 0.16 0.24 0.24 0.02 0.30 0.30 0.10 0.38 0.38 Sat Flow, veh/h 1781 1719 124 1781 1870 1505 1781 1870 1567 1781 1870 1581 Grp Volume(v), veh/h 113 0 193 232 191 29 21 263 41 139 490 18 Grp Sat Flow(s),veh/h/ln 1781 0 1843 1781 1870 1505 1781 1870 1567 1781 1870 1581 Q Serve(g_s), s 3.8 0.0 6.0 7.7 5.3 0.9 0.7 6.9 1.1 4.6 13.4 0.4 Cycle Q Clear(g_c), s 3.8 0.0 6.0 7.7 5.3 0.9 0.7 6.9 1.1 4.6 13.4 0.4 Prop In Lane 1.00 0.07 1.00 1.00 1.00 1.00 1.00 1.00
Lane Grp Cap(c), veh/h 146 0 295 283 443 356 44 566 474 183 712 602 V/C Ratio(X) 0.77 0.00 0.65 0.82 0.43 0.08 0.48 0.46 0.09 0.76 0.69 0.03 Avail Cap(c_a), veh/h 430 0 787 512 875 704 161 1385 1160 453 1693 1431 HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Upstream Filter(I) 1.00 0.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Uniform Delay (d), s/veh 27.4 0.0 24.0 24.8 19.8 18.1 29.3 17.2 15.2 26.6 15.8 11.8 Incr Delay (d2), s/veh 3.2 0.0 0.9 2.2 0.2 0.0 9.5 1.4 0.2 7.7 2.8 0.0 Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 %ile BackOfQ(50%),veh/ln 1.7 0.0 2.5 3.2 2.2 0.3 0.4 3.0 0.4 2.2 5.6 0.1 Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 30.6 0.0 24.9 27.0 20.0 18.1 38.8 18.6 15.4 34.2 18.6 11.9 LnGrp LOS C A C C B B D B B C B B
Approach Vol, veh/h 306 452 325 647
Approach Delay, s/veh 27.0 23.5 19.5 21.8
Approach LOS C C B C
Timer - Assigned Phs 12345678
Phs Duration (G+Y+Rc), s 9.7 23.3 8.5 19.3 5.0 28.1 13.2 14.6 Change Period (Y+Rc), s 3.5 4.9 3.5 4.9 3.5 4.9 3.5 * 4.9 Max Green Setting (Gmax), s 15.5 45.1 14.7 28.5 5.5 55.1 17.5 * 26 Max Q Clear Time (g_c+I1), s 6.6 8.9 5.8 7.3 2.7 15.4 9.7 8.0 Green Ext Time (p_c), s 0.3 4.0 0.1 0.7 0.0 7.8 0.2 0.6 Intersection Summary
HCM 6th Ctrl Delay 22.7
HCM 6th LOS C
Notes
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.

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Queuing and Blocking Report Halcyon Complete Street Plan 2040 Conditions - No Build 2040 Conditions - No Build - AM Peak 10/12/2022 SimTraffic Report
GHD
Intersection: 31: Halcyon Rd & Fair Oaks Ave
Movement EB EB WB WB WB NB NB NB B66 B66 SB SB
Directions Served L TR L T R L T TR T T L T
Maximum Queue (ft) 94 238 125 972 125 117 213 204 170 207 164 275 Average Queue (ft) 49 121 104 274 84 29 154 165 33 44 98 100 95th Queue (ft) 99 213 146 738 147 91 222 219 124 153 165 217 Link Distance (ft) 1278 1650 118 118 509 509 1126
Upstream Blk Time (%) 0 25 31
Queuing Penalty (veh) 0 105 129
Storage Bay Dist (ft) 70 70 100 85 100
Storage Blk Time (%) 6 26 40 21 1 0 34 10 5
Queuing Penalty (veh) 14 16 165 89 5 0 7 14 9
Intersection: 31: Halcyon Rd & Fair Oaks Ave
Movement SB
Directions Served TR
Maximum Queue (ft) 96
Average Queue (ft) 13
95th Queue (ft) 61
Link Distance (ft) 1126
Upstream Blk Time (%)
Queuing Penalty (veh)
Storage Bay Dist (ft)
Storage Blk Time (%)
Queuing Penalty (veh)

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Queuing and Blocking Report Halcyon Complete Street Plan 2040 Conditions - Road Diet Signal Alt - AM Peak
10/12/2022 SimTraffic Report
GHD
Intersection: 31: Halcyon Rd & Fair Oaks Ave
Movement EB EB WB WB WB NB NB NB SB SB SB
Directions Served L TR L T R L T R L T R
Maximum Queue (ft) 175 476 290 442 125 237 703 175 265 283 134 Average Queue (ft) 116 176 136 142 81 25 330 111 129 101 20 95th Queue (ft) 195 371 255 353 142 125 622 221 238 217 71 Link Distance (ft) 1279 1652 684 1598
Upstream Blk Time (%) 1
Queuing Penalty (veh) 9
Storage Bay Dist (ft) 150 250 100 450 150 250 110
Storage Blk Time (%) 9 12 4 10 5 29 0360
Queuing Penalty (veh) 26 20 18 45 21 57 1 11 14 0

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Queuing and Blocking Report 2040 Conditions with Road Diet Alt 3 PM Peak
10/12/2022 SimTraffic Report
GHD
Intersection: 31: Halcyon Rd & Fair Oaks Ave
Movement EB EB WB WB WB NB NB NB SB SB SB
Directions Served L TR L T R L T R L T R
Maximum Queue (ft) 149 225 252 262 125 56 269 175 203 294 135 Average Queue (ft) 74 96 140 96 52 19 117 57 81 170 34
95th Queue (ft) 135 178 228 186 118 48 211 128 154 279 120 Link Distance (ft) 1279 1652 684 1598
Upstream Blk Time (%)
Queuing Penalty (veh)
Storage Bay Dist (ft) 150 250 100 450 150 250 110
Storage Blk Time (%) 0 2 1 6 0 4 0 0 19 0
Queuing Penalty (veh) 1 3 3 19 0 6 0 0 35 0

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LANE SUMMARY
Site: 1 [Halcyon Rd at Fair Oaks Ave_2040 AM Peak (Site Folder: RNDBT)]
Halcyon Rd at Fair Oaks Ave
Site Category: (None)
Roundabout
Lane Use and Performance
DEMAND
FLOWS
95% BACK OF
Cap. QUEUE
Deg.

Satn
Lane
Util.

Aver.

Delay
Level of
Service
Lane
Config
Lane
Length
Cap.

Adj.

Prob.

Block.
[ Total HV ] [ Veh Dist ]
veh/h % veh/h v/c % sec ft ft % %
South: Halcyon Road
Lane 1d 728 2.0 841 0.866 100 19.4 LOS B 15.1 382.4 Full 1600 0.0 0.0 Approach 728 2.0 0.866 19.4 LOS B 15.1 382.4
East: Fair Oaks Avenue
Lane 1d 444 2.0 936 0.474 100 11.1 LOS B 4.3 108.0 Full 1600 0.0 0.0 Lane 2 281 2.0 708 0.397 100 8.9 LOS A 2.9 73.4 Short 200 0.0 NA Approach 725 2.0 0.474 10.2 LOS B 4.3 108.0
North: Halcyon Road
Lane 1d 575 2.0 986 0.583 100 9.6 LOS A 5.2 133.0 Full 1600 0.0 0.0 Approach 575 2.0 0.583 9.6 LOS A 5.2 133.0
West: Fair Oaks Avenue
Lane 1d 500 2.0 770 0.650 100 15.2 LOS B 7.0 177.7 Full 1600 0.0 0.0 Approach 500 2.0 0.650 15.2 LOS B 7.0 177.7
Intersection 2528 2.0 0.866 13.7 LOS B 15.1 382.4
Site Level of Service (LOS) Method: Delay & v/c (HCM 6). Site LOS Method is specified in the Parameter Settings dialog (Site tab).

Roundabout LOS Method: Same as Signalised Intersections.

Lane LOS values are based on average delay and v/c ratio (degree of saturation) per lane.

LOS F will result if v/c > 1 irrespective of lane delay value (does not apply for approaches and intersection).

Intersection and Approach LOS values are based on average delay for all lanes (v/c not used as specified in HCM 6).

Roundabout Capacity Model: SIDRA Standard.

Delay Model: SIDRA Standard (Geometric Delay is included).

Queue Model: HCM Queue Formula.

Gap-Acceptance Capacity: SIDRA Standard (Akçelik M3D).

HV (%) values are calculated for All Movement Classes of All Heavy Vehicle Model Designation. d Dominant lane on roundabout approach
Approach Lane Flows (veh/h)
South: Halcyon Road
Mov. L2 T1 R2 Total %HV
Cap.
veh/h
Deg.

Satn
v/c
Lane
Util.
%
Prob.

SL Ov.
%
Ov.

Lane
No.

From S
To Exit: W N E
Lane 1 22 527 179 728 2.0 841 0.866 100 NA NA
Approach 22 527 179 728 2.0 0.866
East: Fair Oaks Avenue
Mov. L2 T1 R2 Total %HV
Cap.
veh/h
Deg.

Satn
v/c
Lane
Util.
%
Prob.

SL Ov.
%
Ov.

Lane
No.

From E
To Exit: S W N
Lane 1 225 219 - 444 2.0 936 0.474 100 NA NA

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Lane 2 - - 281 281 2.0 708 0.397 100 0.0 1
Approach 225 219 281 725 2.0 0.474
North: Halcyon Road
Mov. L2 T1 R2 Total %HV
Cap.
veh/h
Deg.

Satn
v/c
Lane
Util.
%
Prob.

SL Ov.
%
Ov.

Lane
No.

From N
To Exit: E S W
Lane 1 206 319 50 575 2.0 986 0.583 100 NA NA
Approach 206 319 50 575 2.0 0.583
West: Fair Oaks Avenue
Mov. L2 T1 R2 Total %HV
Cap.
veh/h
Deg.

Satn
v/c
Lane
Util.
%
Prob.

SL Ov.
%
Ov.

Lane
No.

From W
To Exit: N E S
Lane 1 188 275 38 500 2.0 770 0.650 100 NA NA
Approach 188 275 38 500 2.0 0.650
Total %HV Deg.Satn (v/c)
Intersection 2528 2.0 0.866
Lane flow rates given in this report are based on the arrival flow rates subject to upstream capacity constraint where applicable.

Merge Analysis
Exit
Lane
Number
Short
Lane
Length
Percent
Opng in
Lane
Opposing
Flow Rate
Critical
Gap
Follow-up
Headway
Lane
Flow
Rate
Capacity Deg.

Satn
Min.

Delay
Merge
Delay
ft % veh/h pcu/h sec sec veh/h veh/h v/c sec sec
South Exit: Halcyon Road
Merge Type: Not Applied
Full Length Lane 1 Merge Analysis not applied.

East Exit: Fair Oaks Avenue
Merge Type: Not Applied
Full Length Lane 1 Merge Analysis not applied.

North Exit: Halcyon Road
Merge Type: Not Applied
Full Length Lane 1 Merge Analysis not applied.

West Exit: Fair Oaks Avenue
Merge Type: Not Applied
Full Length Lane 1 Merge Analysis not applied.

SIDRA INTERSECTION 9.0 | Copyright © 2000-2020 Akcelik and Associates Pty Ltd | sidrasolutions.com Organisation: GHD INC. | Licence: NETWORK / Enterprise | Processed: Saturday, December 3, 2022 11:41:22 AM Project: \\ghdnet\ghd\US\Sacramento - 2200 21st\Projects\561\12568619\Tech\Sidra\2040 Redistribution_Halcyon Rd and Fair Oaks Ave_WBR_Ver03.sip9

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LANE SUMMARY
Site: 1 [Halcyon Rd at Fair Oaks Ave_2040 PM Peak (Site Folder: RNDBT)]
Halcyon Rd at Fair Oaks Ave
Site Category: (None)
Roundabout
Lane Use and Performance
DEMAND
FLOWS
95% BACK OF
Cap. QUEUE
Deg.

Satn
Lane
Util.

Aver.

Delay
Level of
Service
Lane
Config
Lane
Length
Cap.

Adj.

Prob.

Block.
[ Total HV ] [ Veh Dist ]
veh/h % veh/h v/c % sec ft ft % %
South: Halcyon Road
Lane 1d 457 2.0 969 0.471 100 7.1 LOS A 3.5 89.4 Full 1600 0.0 0.0 Approach 457 2.0 0.471 7.1 LOS A 3.5 89.4
East: Fair Oaks Avenue
Lane 1d 446 2.0 1262 0.353 100 8.9 LOS A 2.5 63.3 Full 1600 0.0 0.0 Lane 2 125 2.0 879 0.142 100 6.5 LOS A 0.8 19.7 Short 200 0.0 NA Approach 571 2.0 0.353 8.4 LOS A 2.5 63.3
North: Halcyon Road
Lane 1d 712 2.0 978 0.728 100 12.0 LOS B 9.2 232.8 Full 1600 0.0 0.0 Approach 712 2.0 0.728 12.0 LOS B 9.2 232.8
West: Fair Oaks Avenue
Lane 1d 326 2.0 589 0.553 100 16.7 LOS B 5.3 135.1 Full 1600 0.0 0.0 Approach 326 2.0 0.553 16.7 LOS B 5.3 135.1
Intersection 2065 2.0 0.728 10.7 LOS B 9.2 232.8
Site Level of Service (LOS) Method: Delay & v/c (HCM 6). Site LOS Method is specified in the Parameter Settings dialog (Site tab).

Roundabout LOS Method: Same as Signalised Intersections.

Lane LOS values are based on average delay and v/c ratio (degree of saturation) per lane.

LOS F will result if v/c > 1 irrespective of lane delay value (does not apply for approaches and intersection).

Intersection and Approach LOS values are based on average delay for all lanes (v/c not used as specified in HCM 6).

Roundabout Capacity Model: SIDRA Standard.

Delay Model: SIDRA Standard (Geometric Delay is included).

Queue Model: HCM Queue Formula.

Gap-Acceptance Capacity: SIDRA Standard (Akçelik M3D).

Satn
v/c
Lane
Util.
%
Prob.

SL Ov.
%
Ov.

Lane
No.

From S
To Exit: W N E
Lane 1 22 277 158 457 2.0 969 0.471 100 NA NA
Approach 22 277 158 457 2.0 0.471
East: Fair Oaks Avenue
Mov. L2 T1 R2 Total %HV
Cap.
veh/h
Deg.

Satn
v/c
Lane
Util.
%
Prob.

SL Ov.
%
Ov.

Lane
No.

From E
To Exit: S W N
Lane 1 245 201 - 446 2.0 1262 0.353 100 NA NA

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Lane 2 - - 125 125 2.0 879 0.142 100 0.0 1
Approach 245 201 125 571 2.0 0.353
North: Halcyon Road
Mov. L2 T1 R2 Total %HV
Cap.
veh/h
Deg.

Satn
v/c
Lane
Util.
%
Prob.

SL Ov.
%
Ov.

Lane
No.

From N
To Exit: E S W
Lane 1 147 516 49 712 2.0 978 0.728 100 NA NA
Approach 147 516 49 712 2.0 0.728
West: Fair Oaks Avenue
Mov. L2 T1 R2 Total %HV
Cap.
veh/h
Deg.

Satn
v/c
Lane
Util.
%
Prob.

SL Ov.
%
Ov.

Lane
No.

From W
To Exit: N E S
Lane 1 120 190 16 326 2.0 589 0.553 100 NA NA
Approach 120 190 16 326 2.0 0.553
Total %HV Deg.Satn (v/c)
Intersection 2065 2.0 0.728
Lane flow rates given in this report are based on the arrival flow rates subject to upstream capacity constraint where applicable.

Merge Analysis
Exit
Lane
Number
Short
Lane
Length
Percent
Opng in
Lane
Opposing
Flow Rate
Critical
Gap
Follow-up
Headway
Lane
Flow
Rate
Capacity Deg.

Satn
Min.

Delay
Merge
Delay
ft % veh/h pcu/h sec sec veh/h veh/h v/c sec sec
South Exit: Halcyon Road
Merge Type: Not Applied
Full Length Lane 1 Merge Analysis not applied.

East Exit: Fair Oaks Avenue
Merge Type: Not Applied
Full Length Lane 1 Merge Analysis not applied.

North Exit: Halcyon Road
Merge Type: Not Applied
Full Length Lane 1 Merge Analysis not applied.

West Exit: Fair Oaks Avenue
Merge Type: Not Applied
Full Length Lane 1 Merge Analysis not applied.

SIDRA INTERSECTION 9.0 | Copyright © 2000-2020 Akcelik and Associates Pty Ltd | sidrasolutions.com Organisation: GHD INC. | Licence: NETWORK / Enterprise | Processed: Saturday, December 3, 2022 11:41:37 AM Project: \\ghdnet\ghd\US\Sacramento - 2200 21st\Projects\561\12568619\Tech\Sidra\2040 Redistribution_Halcyon Rd and Fair Oaks Ave_WBR_Ver03.sip9

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Complete Streets Plan ghd.com The Power of Commitment Page 885 of 1114

INITIAL STUDY/ PROPOSED

MITIGATED NEGATIVE

DECLARATION
Halcyon Road Complete Streets Project
City of Arroyo Grande, County of San Luis Obispo, California May 2023
ATTACHMENT 4

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INITIAL STUDY / MITIGATED NEGATIVE DECLARATION May 2023 Halcyon Road Complete Streets Project

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Project: Halcyon Road Complete Streets Project
Lead Agency: The City of Arroyo Grande
Document Availability:
• City of Arroyo Grande
Community Development Department
300 East Branch Street
Arroyo Grande, CA 93420
• http://www.arroyogrande.org/
Project Description:

The City of Arroyo Grande (City), in association with the County of San Luis Obispo (County) and California Department of Transportation (Caltrans), has developed the Halcyon Road Complete Streets Plan (Plan and project) to provide for safe mobility and accessibility for all users throughout the Halcyon Road corridor, including bicyclists, pedestrians, transit vehicles, trucks, and motorists. Improvements would occur along a 1.7-mile transportation corridor on Halcyon Road between US 101 and SR 1 and would include signalized crossings and intersections with increased visibility, improved sidewalk connectivity, new bike lanes, and reduced vehicle speeds while maintaining traffic circulation. Specific goals of the proposed project are to enhance safety for all modes of travel, improve multimodal connectivity, provide adequate roadway capacity for diverse travel needs, promote economic vitality and visual character, recognize and address the urban and rural interface, recognize greenhouse gas reduction and air quality benefits, and engage the community. The Complete Streets Plan provides a framework within which further specific improvements can be designed and developed as funding is available.

The Complete Streets Plan divides the project study corridor into three (3) Context Zones to illustrate the changes in adjacent land uses and roadway characteristics along the corridor. These Context Zones are Urban, Urban Transition, and Neighborhood. All Context Zones lie within the jurisdiction of the City of Arroyo Grande.

Summary Document Preparation:

Pursuant to Section 21082.1 of the California Environmental Quality Act, the City of Arroyo Grande has independently reviewed and analyzed the Initial Study and Proposed Mitigated Negative Declaration (IS/MND) for the proposed project and finds that these documents reflect the independent judgment of the City. The City, as lead agency, also confirms that the project mitigation measures detailed in these documents are feasible and will be implemented as stated in the IS/MND. ______________________________________ May 23, 2023
Prepared by: Emily Creel Date
SWCA Environmental Consultants
______________________________________ May 23, 2023
Reviewed by: Brian Pedrotti Date
Community Development Director

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INITIAL STUDY / MITIGATED NEGATIVE DECLARATION May 2023 Halcyon Road Complete Streets Project

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INITIAL STUDY / MITIGATED NEGATIVE DECLARATION May 2023 Halcyon Road Complete Streets Project

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Table of Contents:

1. Introduction .......................................................................................................................................... 7 Introduction and Regulatory Guidance..................................................................................................... 7 Lead Agency .............................................................................................................................................. 7 Agency Roles............................................................................................................................................. 7 Environmental Compliance Documentation............................................................................................. 7 Purpose and Document Organization....................................................................................................... 8 Summary of Findings................................................................................................................................. 8

2. Project Description................................................................................................................................ 9 Project Location ........................................................................................................................................ 9 Project Background and Purpose.............................................................................................................. 9 Project Description.................................................................................................................................... 9 Other Required Public Agency Approvals...............................................................................................19 Related Projects......................................................................................................................................19

3. Environmental Checklist .....................................................................................................................20 Project Information................................................................................................................................. 20 Environmental Factors Potentially Affected...........................................................................................21 Determination.........................................................................................................................................21 Evaluation of Environmental Impacts.....................................................................................................22

4. Environmental Issues..........................................................................................................................23 I. Aesthetics.............................................................................................................................................23 II. Agriculture and Forestry Resources....................................................................................................25 III. Air Quality ..........................................................................................................................................26 IV. Biological Resources ..........................................................................................................................31 V. Cultural Resources..............................................................................................................................34 VI. Energy ................................................................................................................................................38 VII. Geology and Soils..............................................................................................................................39 VIII. Greenhouse Gas Emissions..............................................................................................................41 IX. Hazards and Hazardous Materials.....................................................................................................44 X Hydrology and Water Quality ..............................................................................................................49 XI. Land Use and Planning.......................................................................................................................53 XII. Mineral Resources ............................................................................................................................54 XIII. Noise ................................................................................................................................................55 XIV. Population and Housing...................................................................................................................57

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INITIAL STUDY / MITIGATED NEGATIVE DECLARATION May 2023 Halcyon Road Complete Streets Project

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XV. Public Services ..................................................................................................................................58 XVI. Recreation........................................................................................................................................60 XVII. Transportation/Traffic ....................................................................................................................61 XVIII. Tribal Cultural Resources...............................................................................................................64 XIX. Utilities and Service Systems...........................................................................................................65 XX. Wildfire .............................................................................................................................................67

5. Mandatory Findings of Significance....................................................................................................69

6. Summary of Mitigation Measures ......................................................................................................71

7. References ..........................................................................................................................................79

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INITIAL STUDY / MITIGATED NEGATIVE DECLARATION May 2023 Halcyon Road Complete Streets Project

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1. Introduction
Introduction and Regulatory Guidance
This Initial Study/Mitigated Negative Declaration (IS/MND) has been prepared by the City of Arroyo Grande (the City) to evaluate the potential environmental effects of the proposed Halcyon Road Complete Streets Plan. This document has been prepared in accordance with the California Environmental Quality Act (CEQA), Public Resources Code §21000 et seq., and the State CEQA Guidelines, California Code of Regulations (CCR) §15000 et seq.

An Initial Study is conducted by a lead agency to determine if a project may have a significant effect on the environment (CEQA Guidelines §15063). If there is substantial evidence that a project may have a significant effect on the environment, an Environmental Impact Report (EIR) must be prepared, in accordance with CEQA Guidelines §15064(a). However, if the lead agency determines that revisions in the project plans or proposals made by or agreed to by the applicant mitigate the potentially significant effects to a less-than-significant level, a Mitigated Negative Declaration may be prepared instead of an EIR (CEQA Guidelines §15070). The lead agency prepares a written statement describing the reasons a proposed project would not have a significant effect on the environment and, therefore, why an EIR need not be prepared. This IS/MND conforms to the content requirements under CEQA Guidelines §15071.

Lead Agency
The lead agency is the public agency with primary approval authority over the proposed project. In accordance with CEQA Guidelines §15051(b)(1), "the lead agency will normally be an agency with general governmental powers, such as a city or county, rather than an agency with a single or limited purpose.” The lead agency for the proposed project is the City of Arroyo Grande. Contact person for the CEQA lead agency is:

Andrew Perez
Planning Manager
City of Arroyo Grande
300 E. Branch Street
Arroyo Grande, CA 93420
T: (805) 473-5425
E: [email protected]
Agency Roles
The City of Arroyo Grande has taken on the role of implementing all phases of this project and therefore is managing the scope, cost and schedule of each project component. Funding for the Complete Streets Plan has been provided by the California Department of Transportation (Caltrans) through a Sustainable Transportation Planning Grant, and by the San Luis Obispo Council of Governments (SLOCOG) through a Community Betterment grant.

Environmental Compliance Documentation
This Initial Study with Proposed Mitigated Negative Declaration has been prepared in compliance with CEQA and state environmental laws.

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INITIAL STUDY / MITIGATED NEGATIVE DECLARATION May 2023 Halcyon Road Complete Streets Project

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Purpose and Document Organization
The purpose of this document is to evaluate the potential environmental effects of the proposed project.

Mitigation measures have been identified and incorporated into the project to eliminate or reduce any potentially significant impacts to a less-than-significant level.

This document is organized as follows:

1. Introduction – This chapter introduces the project and describes the purpose and organization of this document.

2. Project Description – This chapter describes the background and scope of the project, all proposed project components, and identifies project objectives.

3. Environmental Checklist – This chapter summarizes the project and the environmental issues to be considered and describes the process for evaluation of environmental impacts.

4. Environmental Setting, Potential Impacts, and Mitigation Measures – This chapter explains the environmental setting for each environmental issue area, identifies the significance of potential environmental impacts, and evaluates the potential impacts identified in the CEQA Environmental (Initial Study) Checklist. Mitigation measures are incorporated, where appropriate, to reduce potentially significant impacts to a less-than-significant level.

5. Mandatory Findings of Significance – This chapter identifies and summarizes the overall significance of any potential impacts to natural and cultural resources, cumulative impacts, and impact to humans, as identified in the Initial Study.

6. Summary of Mitigation Measures – This chapter summarizes the mitigation measures incorporated into the project as a result of the Initial Study.

7. References – This chapter identifies the references and sources used in the preparation of this IS/MND.

Summary of Findings
Section 3 of this document contains the Environmental (Initial Study) Checklist that identifies the potential environmental impacts (by environmental issue) and contains a brief discussion of each potential impact that would result from implementation of the proposed project.

In accordance with §15064(f) of the CEQA Guidelines, a Mitigated Negative Declaration shall be prepared if the proposed project will not have a significant effect on the environment after the inclusion of mitigation measures in the project. Based on the available project information and the environmental analysis presented in this document, there is no substantial evidence that, after the incorporation of identified mitigation measures, the proposed project would have a significant effect on the environment.

It is proposed that a Mitigated Negative Declaration be adopted in accordance with the CEQA Guidelines.

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INITIAL STUDY / MITIGATED NEGATIVE DECLARATION May 2023 Halcyon Road Complete Streets Project

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2. Project Description
Project Location
The project is located along Halcyon Road between US Route 101 (US 101) and the city limits at the intersection of Halcyon Road and The Pike, in the City of Arroyo Grande, San Luis Obispo County, California (refer to Figures 1 and 2). The approximately 1.2-mile project corridor is located within the U.S. Geological Survey (USGS) Oceano, California 7.5-minute quadrangle, in an unsectioned portion of the County (Pismo Land Grant).

The City of Arroyo Grande (City) is situated in southwestern San Luis Obispo County (County), in the Arroyo Grande Valley, approximately 15 miles south of the City of San Luis Obispo and 10 miles north of the Santa Barbara County line. No portion of the project corridor is within the Coastal Zone.

Project Background and Purpose
The City proposes a Complete Streets Plan for Halcyon Road to improve safety, mobility, and accessibility for all users, including bicyclists, pedestrians, transit vehicles, trucks, and motorists. Improvements would occur along a 1.2-mile transportation corridor on Halcyon Road between US 101 and The Pike and would include signalized crossings and intersections with increased visibility, improved sidewalk connectivity, new bike lanes, and reduced vehicle speeds while maintaining circulation for vehicular traffic. Specific goals of the proposed project are to enhance safety for all modes of travel, improve multimodal connectivity, provide adequate roadway capacity for diverse travel needs, promote economic vitality and visual character, recognize and address the urban and rural interface, recognize greenhouse gas reduction and air quality benefits, and engage the community.

Halcyon Road does not currently provide the necessary bicycle accommodations and lacks adequate pedestrian accommodations. Unsignalized crossings and intersections with poor visibility, lack of sidewalk connectivity, the absence of bike lanes, unclear or poorly marked lane markings, and high vehicle speeds present challenges to overall safety along the project corridor. The Plan proposes transportation enhancements so that all travel modes are accommodated and will promote safe and convenient walking and bicycling for residents and visitors. The concepts and recommendations within the Plan were developed based on feedback from the community, input from multiple workshops, extensive in-person and online surveys, comprehensive meetings with stakeholders, as well as from the review of existing plans, policies and programs that support walking, biking, driving, and overall community livability and sustainability.

San Luis Obispo County proposed a separate project, known as the Halcyon Road Project, for improvements to Halcyon Road between The Pike and SR 1. The Halcyon Road Project proposed changes to the Halcyon Road/SR 1 intersection and Arroyo Grande Creek crossing and other improvements along Halcyon Road south of SR 1 and the Complete Streets Plan area toward the Nipomo Mesa. Potential environmental impacts of the Halcyon Road Projects are contemplated in the 2007 Master EIR, which was certified in 2007. Those impacts have not been analyzed in this MND.

Project Description
The Complete Streets Plan divides the project study corridor into three (3) Context Zones to illustrate the changes in adjacent land uses and roadway characteristics along the corridor. The corridor is comprised of varying street conditions, land uses, and constraints and has been categorized into the following distinct Context Zones for detailed evaluation within each zone:

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• Context Zone 1: Urban – US 101/ El Camino Real to East Grand Avenue • Context Zone 2: Urban Transition – East Grand Avenue to Fair Oaks Avenue • Context Zone 3: Neighborhood – Fair Oaks Avenue to The Pike Existing constraints and proposed improvements within each Context Zone are summarized in Table 1 and described in further detail below.

Table 1. Summary of Constraints and Improvements by Context Zone Context Zone Existing Conditions and Issues Proposed Multimodal Improvements 1: Urban (El Camino
Real to East Grand
Avenue)
• Lack of continuous and
adequate sidewalks,
• Difficulty in effectively
accessing transit and park and
ride facilities,
• Proximity to US 101,
Inconsistent lane
configurations through
intersections, and
• Poor traffic signal timing.
• Class II Buffered Bike Lanes on both sides
(except southbound approaching E. Grand
Avenue will be a Bike Route),
• Bike Box for left turning cyclists at El Camino
Real,
• Green Pavement treatment in conflict
zones,
• On-Street Parking at Arroyo Grande Police
Department,
• Complete sidewalk connectivity on
northbound side, and
• Install curb ramps at Bennett Avenue.
2: Urban Transition
(East Grand Avenue to
Fair Oaks Avenue)
• Poor traffic signal timings,
• Speeding,
• Lack of accessible curb ramps,
• Poor crosswalk visibility,
• Narrow and degraded
sidewalks,
• Limited visibility caused by
on-street parking, and
• Inconsistent or confusing lane
configurations
• A brief four-lane section with striped Class II
Bike Lanes between E. Grand Avenue and
150’ south of Park Way,
• Transitions to a three-lane segment with
two travel lanes and a center turn lane,
• A Class II Buffered Bike Lane northbound, a
striped Class II Bike Lane southbound, and
on- street parking southbound,
• Four on-street parking spaces are provided
southbound in front of the Arroyo Grande
Optometry building at Dodson Way,
• Class IV Separated Bikeway is provided from
Dodson Way to approximately 130’ feet.
• South, in between the sidewalk and the
parking zone, via a separated landscaped
median,
• Class IV Separated Bikeway is provided
northbound, with a separated landscaped
median, from the main hospital driveway to
approximately 120’ north,
• Green pavement treatment provided in the
conflict zones,
• Marked Crosswalk on north side of
intersection at Dodson Way, and
• Curb extensions are proposed at all corners
of the Dodson Way intersection.

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Table 1. Summary of Constraints and Improvements by Context Zone Context Zone Existing Conditions and Issues Proposed Multimodal Improvements 3: Neighborhood (Fair
Oaks Avenue to The
Pike)
• Speeding, especially during
school hours,
• Lack of continuous sidewalk
and accessible curb ramps,
• Limited visibility caused by
on-street parking,
inconsistent or confusing lane
configurations, and
• Poor crosswalk visibility
• Install one of the two identified alternatives
at the intersection of Halcyon Road and Fair
Oaks Avenue. Alternative 1 consists of an
update to the existing traffic signal head,
timing modifications, and road diet with the
addition of delineated bike lines. Alternative
2 consists of a modern, compact
roundabout with a dedicated right turn lane
northbound. The proposed roundabout will
provide bike ramps for all approaches
leading to a multi-use path, for both
pedestrians and bicyclists to navigate the
roundabout, as well as shared lane markings
for cyclists within the roundabout.
• Three lane cross-sections with two travel
lanes, a center turn lane,
• On-street parking is provided along Halcyon
Road northbound between Cameron Court
and 130’ north of Sandalwood Avenue,
• Install all-way stop control at Halcyon Road
and The Pike,
• Class II Buffered Bike Lanes are proposed for
both sides of Halcyon Road between Fair
Oaks Avenue and Olive Street, and between
Sandalwood Avenue and The Pike,
• Northbound, a Class IV Separated Bikeway
from Farroll Avenue to 130 feet north,
• Southbound, a dedicated Bike Lane between
the through lane and the right turn lane at
Farroll Avenue. Green pavement treatment
provided in the conflict zones,
• A new two-stage crossing on the north side
of Sycamore Drive, with a refuge island,
• A continuous 6-foot-wide sidewalk on the
east side of Halcyon Road from The Pike to
Willow Lane, and a 7-foot-wide sidewalk
from Willow Lane to Cameron Court, and
• Curb Extensions and ADA curb ramps at
various locations.

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Figure 1. Project Vicinity Map

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Figure 2. Project Location Map

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Context Zone 1: Urban – El Camino Real to East Grand Avenue Halcyon Road through Context Zone 1 is approximately 0.3 miles long and passes through a primarily urban area entirely within the City (Figure 3a). This urban Context Zone is predominately developed and provides critical access to important commercial and retail areas of the City of Arroyo Grande. Existing uses include commercial, residential, retail, and notable public facilities, including churches, the Arroyo Grande Cemetery, and the Arroyo Grande Police Department. This urban Context Zone also includes mature trees and landscaping adjacent to the existing roadway, as well as existing overhead utility lines, signage, street lighting, fencing, and other infrastructure.

The proposed typical roadway cross-sections for this segment would include one travel lane in each direction and Class II Buffered Bike Lanes (except on the southbound approach to East Grand Avenue) as well as on-street parking (1-hour) in front of the Arroyo Grande Police Department. Bicycle facilities would include Class II Buffered Bike Lanes for both sides of North Halcyon Road from El Camino Real to East Grand Avenue. At the intersection of North Halcyon Road and El Camino Real, the northbound approach would utilize a Bike Box to accommodate left-turning cyclists and to allow for better visibility. A green pavement treatment would be used in the conflict zone for left-turn bicycle traffic to provide a clearly defined route to the Bike Box. North of the intersection of North Halcyon Road and East Grand Avenue, the southbound Class II Bike Lane would transition to a Class III Bike Route with “Share the Road” signs and Sharrow pavement markings. Pedestrian facilities would be improved by filling existing sidewalk gaps to complete sidewalk infrastructure and by installing a new curb ramp at the northeast corner of Bennet Avenue and Halcyon Road.

Context Zone 2: Urban Transition –East Grand Avenue to Fair Oaks Avenue Halcyon Road through Context Zone 2 is approximately 0.4 miles long and transitions from an urban area to a residential area (Figure 3a). This urban transition Context Zone is predominantly developed with urban uses, a few residential driveways having direct access to Halcyon Road, and direct access to parking lots for local commercial, office, and medical businesses. Existing uses include commercial, residential, retail, and public facilities, and notable land uses within this zone include the Arroyo Grande Community Hospital and other medical offices. The urban transition Context Zone also includes mature trees and landscaping adjacent to the existing roadway, as well as existing overhead utility lines, signage, street lighting, fencing, and other infrastructure.

There are three proposed typical cross-sections for this segment including a brief four-lane section with striped Class II Bike Lanes between Grand Avenue and Park Way, which would transition to a three-lane segment with two travel lanes, a center turn lane, a Class II Buffered Bike Lane northbound, a striped Class II Bike Lane southbound, and on-street parking southbound. The third typical cross-section between Dodson Way and Fair Oaks Boulevard would be a three-lane segment with two travel lanes, a center turn lane, and Class II Buffered Bike Lane north and southbound. One of two alternatives will be implemented at the intersection of Halcyon Road and Fair Oaks Avenue. Alternative 1 consists of a signalized intersection at the Halcyon Road and Fair Oaks intersection. This alternative prioritizes bicycle and pedestrian safety and access through the intersection and proposes a single through lane on each approach, with dedicated turn lanes for traffic heading north, east, and west. Alternative 2, consists of a modern compact roundabout with single entry and exit lanes, except for the westbound approach which proposes a right turn lane and a shared thru/left lane. There would be a single circulating lane around the roundabout. Motorists at the roundabout would be required to yield the right-of-way to pedestrians and bicyclists.

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Bicycle facilities would include Class II Buffered Bike Lanes for both sides of Halcyon Road from Grand Avenue to Fair Oaks Avenue. At the intersection of Halcyon Road/Grand Avenue, the conflict zone between northbound bicycle traffic and right turning motorists would be separated and treated with green pavement markings. A Class II Buffered Bike Lane would be provided for northbound cyclists, from Fair Oaks Avenue to Park Way, where the road transitions to a four-lane cross-section. Additionally, a Class IV Separated Bikeway would be provided northbound, with a separated landscaped median, beginning north of the Halcyon Road entrance to the Arroyo Grande Community Hospital. A Class II Buffered Bike Lane is proposed for southbound cyclists from Dodson Way to Fair Oaks Avenue and a Class IV Separated Bikeway is proposed from Dodson Way to approximately 130 feet south. The proposed roundabout at Halcyon Road and Fair Oaks Avenue would provide bike ramps for all approaches, leading to a multi-use path as well as shared lane markings.

Pedestrian facilities include maintaining existing marked pedestrian crossings located on the south and east sides of the Halcyon Road/Dodson Way intersection and the addition of marked crossings on the north and west sides of the intersection. Curb extensions are proposed at all corners of the Dodson Way intersection, and the curb extension in the southwest corner of Dodson Way would accommodate pedestrian access and initiate the Class IV Separated Bikeway. Pedestrian crossing distances across vehicular lanes will also be reduced with Alternative 1 compared to existing conditions, which has a single through lane in each direction, turn lanes on the northbound, southbound, and westbound approaches, and buffered bike lanes on all of the receiving lanes. The new signal timing would include a Leading Pedestrian Interval which allows pedestrians to enter the crosswalk before vehicles have the green indication. For the roundabout alternative, the crosswalks at Halcyon Road/Fair Oaks Avenue would be improved with the Roundabout to become two-stage crossings by allowing pedestrians to focus on one traffic stream at a time while crossing and taking refuge in the splitter islands of the roundabout, as opposed to crossing the entire road at once as presented in the signal alternative.

Context Zone 3: Neighborhood – Fair Oaks Avenue to The Pike Halcyon Road in Context Zone 3 is approximately 0.44 miles long and passes through a predominantly residential area (Figure 3b). This neighborhood Context Zone is developed with single-family residences between Fair Oaks drive and the southern City limits. Harloe Elementary School and the school fields are located at the northern end of the zone. This Context Zone also includes a small mobile home park within unincorporated San Luis Obispo County east of The Pike. This Context Zone also includes mature trees and landscaping adjacent to the existing roadway, as well as existing utility lines, signage, street lighting, fencing, and other infrastructure.

The proposed typical cross-section for this segment would generally be three lanes, with two travel lanes, a center turn lane, and Class II Buffered lanes northbound and southbound for the majority of the segment. Improvements to the intersection of Halcyon Road and Fair Oaks Avenue would include either an upgrade to the traffic signal and a road diet or construction of a compact roundabout. The signalized intersection would include Class II Bike Lanes on all approaches and delineating the bike lanes through the intersection with green paint markings. In the roundabout alternative, bicyclists would share the lane with motorists. Class II Bike Lanes would be provided southbound, without a striped buffer, between Olive Street and Sandalwood Avenue. Improvements to the intersection of Halcyon Road and The Pike would include additional pedestrian crossings and accessible curb ramps.

Bicycle facilities would include proposed Class II Buffered Bike lanes for both sides of Halcyon Road between Fair Oaks Avenue and Olive Street, and between Sandalwood Avenue and The Pike. Northbound, a Class IV Separated Bikeway via a landscaped median, is proposed from Farroll Avenue to the first

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driveway downstream, approximately 130 feet. At the intersections of Halcyon Road/Farroll Avenue and Halcyon Road/The Pike, the conflict zones between southbound bicycle traffic and right turning motorists would be treated with green pavement markings to make bicyclists more visible and provide a clearly defined route. The proposed roundabout at Halcyon Road/Fair Oaks Avenue would provide bike ramps at all approaches leading to a multi-use path and shared lane markings. The implementation of both bike ramps and shared lane markings would accommodate all levels of experienced cyclists.

Pedestrian facilities in the roundabout alternative would include modifying the existing signalized crosswalks at Halcyon Road/Fair Oaks Avenue to a two-stage crossing by creating a center stopping point in the splitter islands of the roundabout. The only changes to the pedestrian facilities in the upgraded signalized intersection alternative would be changes to the crosswalk timing and addition of a lead interval. The proposed roundabout would provide a 10-foot-wide multi-use path for both pedestrians and bicyclists. Curb extensions are proposed at both corners of Todd Lane, the southwest corner of Farroll Avenue/Halcyon Road, and the southwest corner of Sandalwood Avenue/Halcyon Road. Americans with disabilities (ADA) curb ramps are proposed on the northeast corner of Willow Lane/Halcyon Road and the southeast corner of Virginia Drive/Halcyon Road. The existing crosswalk crossing at Farroll Avenue would be modified to align with the proposed curb extension on the southwest corner of Farroll Avenue/Halcyon Road and the proposed right-turn channelization. A new two-stage crossing is proposed on the north side of Sycamore Drive, crossing Halcyon, with a refuge island (center stopping point) in the center lane. A continuous 6-foot-wide sidewalk is proposed on the east side of Halcyon Road from The Pike to Willow Lane, and a 7-foot-wide sidewalk is proposed from Willow Lane to Cameron Court.

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Figure 3a. Context Zone 1 and 2

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Figure 3b. Context Zone 3

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Other Required Public Agency Approvals
Project construction and implementation would require the City to obtain permits and other forms of approval from various federal and state agencies. These authorizations may be issued in the form of regulatory permits, agreements, or other forms of environmental review/approval. As proposed, the project is expected to require authorizations/permits from the following agencies:

Table 2. Agency Permits/Authorizations
Responsible Agency Applicable Permit or Authorization
City of Arroyo Grande CEQA Lead Agency Environmental Clearance/Adoption San Luis Obispo County Air Pollution Control District
(APCD)
Construction permits, if necessary, for future
implementation of project components
Related Projects
The Halcyon Road Complete Streets Plan has been designed to be consistent and compatible with the improvements proposed under the County of San Luis Obispo’s Halcyon Road Projects and 2007 Master EIR.

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3. Environmental Checklist
Project Information
Project Title: Halcyon Road Complete Streets Project
Lead Agency Name & Address: City of Arroyo Grande
300 East Brach Street
Arroyo Grande, CA 93420
Contact Person & Telephone Number: Andrew Perez, Planning Manager (805) 473-5420
Project Location: Halcyon Road between US Route 101 (US 101) and The Pike in the City of Arroyo Grande, San Luis
Obispo County, California.

Project Sponsor Names & Addresses: City of Arroyo Grande 300 East Brach Street
Arroyo Grande, CA 93420
General Plan Designation: Multiple
Zoning: Multiple
Description of Project: Improvements to Halcyon Road to create a Complete Street to improve safety, mobility, and
accessibility for all users.

Surrounding Land Uses & Setting: Community facilities, mixed-use, office professional, residential, agricultural.

Approval Required from Other Public Agencies: APCD

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Environmental Factors Potentially Affected
The environmental factors checked below would be potentially affected by this project, involving at least one impact that is a "Potentially Significant Impact,” as indicated by the checklist on the following pages:

Aesthetics Agricultural Resources Air Quality
Biological Resources Cultural Resources Energy
Geology/Soils Greenhouse Gas Emissions Hazards & Hazardous Materials Hydrology/Water Quality Land Use/Planning Mineral Resources Noise Population/Housing Public Services
Recreation Transportation Tribal Cultural Resources
Utilities/Service Systems Wildfire Mandatory Findings of Significance Determination
On the basis of this initial evaluation:

I find that the proposed project COULD NOT have a significant effect on the environment and a NEGATIVE DECLARATION will be prepared.

I find that, although the original scope of the proposed project COULD have a significant effect on the environment, there WILL NOT be a significant effect because revisions/mitigations to the project have been made by or agreed to by the applicant. A MITIGATED NEGATIVE DECLARATION will be prepared.

I find that the proposed project MAY have a significant effect on the environment and an ENVIRONMENTAL IMPACT REPORT or its functional equivalent will be prepared.

I find that the proposed project MAY have a "potentially significant impact" or "potentially significant unless mitigated impact" on the environment. However, at least one impact has been adequately analyzed in an earlier document, pursuant to applicable legal standards, and has been addressed by mitigation measures based on the earlier analysis, as described in the report's attachments. An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only the impacts not sufficiently addressed in previous documents.

I find that, although the proposed project could have had a significant effect on the environment, because all potentially significant effects have been adequately analyzed in an earlier EIR or Negative Declaration, pursuant to applicable standards, and have been avoided or mitigated, pursuant to an earlier EIR, including revisions or mitigation measures that are imposed upon the proposed project, all impacts have been avoided or mitigated to a less-than-significant level and no further action is required.
______________________________________ May 23, 2023
Andrew Perez Date
Planning Manager

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Evaluation of Environmental Impacts

1. A brief explanation, adequately supported by the information sources cited, is required for all answers, except "No Impact.” A "No Impact" answer is adequately supported if the referenced information sources show that the impact does not apply to the project being evaluated (e.g., the project falls outside a fault rupture zone). A "No Impact" answer should be explained where it is based on general or project-specific factors (e.g., the project will not expose sensitive receptors to pollutants, based on a project-specific screening analysis).

2. All answers must consider the whole of the project-related effects, both direct and indirect, including off-site, cumulative, construction, and operational impacts.

3. Once the lead agency has determined that a particular physical impact may occur, the checklist answers must indicate whether that impact is potentially significant, less than significant with mitigation, or less than significant. "Potentially Significant Impact" is appropriate when there is sufficient evidence that a substantial or potentially substantial adverse change may occur in any of the physical conditions within the area affected by the project that cannot be mitigated below a level of significance. If there are one or more "Potentially Significant Impact" entries, an Environmental Impact Report (EIR) is required.

4. A "Mitigated Negative Declaration" (Negative Declaration: Less Than Significant with Mitigation Incorporated) applies where the incorporation of mitigation measures, prior to declaration of project approval, has reduced an effect from "Potentially Significant Impact" to a "Less Than Significant Impact with Mitigation." The lead agency must describe the mitigation measures and briefly explain how they reduce the effect to a less than significant level.

5. Earlier analyses may be used where, pursuant to the tiering, program EIR, or other CEQA process, an effect has been adequately analyzed in an earlier EIR (including a General Plan) or Negative Declaration [CCR, Guidelines for the Implementation of CEQA, § 15063(c)(3)(D)]. References to an earlier analysis should:
a) Identify the earlier analysis and state where it is available for review. b) Indicate which effects from the environmental checklist were adequately analyzed in the earlier document, pursuant to applicable legal standards, and whether these effects were adequately addressed by mitigation measures included in that analysis. c) Describe the mitigation measures in this document that were incorporated or refined from the earlier document and indicate to what extent they address site-specific conditions for this project.

6. Lead agencies are encouraged to incorporate references to information sources for potential impacts into the checklist or appendix (e.g., general plans, zoning ordinances, biological assessments). Reference to a previously prepared or outside document should include an indication of the page or pages where the statement is substantiated.

7. A source list should be appended to this document. Sources used or individuals contacted should be listed in the source list and cited in the discussion.

8. Explanation(s) of each issue should identify:
a) the criteria or threshold, if any, used to evaluate the significance of the impact addressed by each question; and,
b) the mitigation measures, if any, prescribed to reduce the impact below the level of significance.

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4. Environmental Issues
I. Aesthetics
Environmental Setting
The Halcyon Road corridor runs north to south from US 101 to SR 1 for approximately 1.7 miles in the City of Arroyo Grande and County of San Luis Obispo. The Plan proposes improvements within a 1.2 section of the corridor between US 101 and The Pike. The project area is largely urbanized within each Context Zone.

The existing roadway is lined with trees, landscaping, overhead utility lines, street lighting, signage, fencing and other infrastructure commonly observed in developed urban areas. Roadway improvements in the past have been minimal aside from necessary maintenance, and many modern safety and design standards are absent along the corridor. One of the principal concepts of a complete street design is to improve public safety and circulation while creating a modern, welcoming design that reflects the identity of the community. The Complete Streets Plan has been designed to not only improve safety for multimodal transportation, but to also further enhance and beautify the corridor by incorporating design concepts developed by the community.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Have a substantial adverse effect on a scenic vista? b) Substantially damage scenic resources, including, but not limited to, trees, rock outcroppings, and historic
buildings within a state scenic highway?
c) Substantially degrade the existing visual character or quality of the site and its surroundings?
d) Create a new source of substantial light or glare
which would adversely affect day or nighttime views in
the area?
Discussion
a) – c): For CEQA purposes, a scenic vista is generally defined as a viewpoint that provides expansive views of a highly valued landscape for the benefit of the general public. A substantial adverse effect on a scenic vista would occur if the proposed project would significantly degrade the scenic landscape as viewed from public roads or other public areas. The project corridor extends through a highly urbanized area comprised of substantial development and infrastructure and is not considered a scenic vista.

The project would be highly visible to anyone traveling along the corridor as well as to surrounding businesses and residents. The existing visual quality of the corridor could generally be characterized as moderate, where new improvements would enhance the overall setting and experience for travelers and nearby businesses or residents. Each Context Zone will be developed in a fashion that is consistent with its local setting (i.e., urban, neighborhood, rural) while maintaining the community’s identity.

Improvements include features like bike lanes, curb extensions, sidewalks, striped and signalized crosswalks, sharrows, and green paint for dedicated bike lanes, and potentially a roundabout. These improvements would not substantially or adversely change the visual character or quality of the project

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area and would generally improve the appearance of existing and proposed transportation facilities along Halcyon Road.

Short-term construction activities have the potential to create visual impacts in the project area associated with the presence of construction equipment, earthwork activities, detour signage, etc.

However, these impacts would be temporary in nature and limited to the construction period.

Construction of the proposed improvements would also occur in phases, as funding is available; therefore, construction-related impacts would not occur at a single time and would be minimized through phased project implementation.

US 101 and SR 1 in the project vicinity are designated as an “Eligible State Scenic Highway – Not Officially Listed” by the California Scenic Highway Mapping System Visual quality of the project area is dominated primarily by urban development and road infrastructure. There are no scenic rock outcroppings or historic buildings in the project vicinity that would be damaged as a result of project development. The project would require road widening which may result in some tree removal within the City’s right-of-way. The Plan proposes planted medians, landscaping, and street trees that would improve visual quality and views of the project area and its surroundings. Proposed improvements to the streetscape are low impact and will not have an impact on US 101 or SR 1. Therefore, implementation of the project would not substantially degrade the existing setting or views.

Therefore, potential impacts would be less than significant. d): The project proposes removal and replacement of existing traffic and safety lighting in the project corridor to accommodate roadway modifications and improvements. Consistent with the project’s goal of enhancing safety, complete streets elements such as high visibility crosswalks with roadway lighting and crossing beacons are included to provide additional safety to pedestrians by increasing motorist awareness. Construction of the project may also require the use of additional temporary lighting during construction activities.

The project corridor is primarily located in an urbanized area and consists of substantial sources of existing light and glare, including standard traffic and pedestrian signals, safety lighting, and outdoor lighting associated with adjacent land uses. The lighting proposed in relation to the project would not substantially differ from existing conditions in terms of the intensity of light and the areas illuminated. Under Alternative 1, the project is not anticipated to increase the amount of lighting when compared to existing conditions. Alternative 2 does require a minor increase in the number of streetlights at the roundabout when compared to existing conditions but does will not be a substantial increase. Additionally, the removal of the traffic signal eliminates an existing light source. In addition, compliance with applicable Municipal Code standards in Section 16.48.090, including shielding of outdoor lighting and measures to minimize light trespass onto adjacent properties and glare, would further reduce the potential for significant impacts.

Therefore, potential impacts would be less than significant.

Mitigation Measures and Residual Impacts
No significant impacts to aesthetic resources were identified; therefore, no mitigation measures are required.

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II. Agriculture and Forestry Resources
Environmental Setting
The California Department of Conservation and Natural Resources Conservation Service (NRCS) classify agricultural lands into five categories: Prime Farmland, Farmland of Statewide Importance, Unique Farmland, Farmland of Local Importance, and Farmland of Local Potential. Non-farmlands are classified as Grazing Land, Urban and Built-Up Land, Other Land, or Water.

The Williamson Act of 1965 is the state’s principal policy for the preservation of agricultural, open-space, and rangeland. The program encourages landowners to work with local governments to protect important farmland and open space in exchange for tax benefits. As land is restricted to agricultural and compatible open space uses under the Williamson Act, it is assessed for property taxes at a rate consistent with its actual use, rather than the potential value of the land.

The Agriculture, Conservation, and Open Space Element of the City’s General Plan identifies the importance of avoiding and/or mitigating the loss of prime farmland soils and of conserving non-prime agriculture uses and natural resource lands. The City’s policies also recognize the importance of allocation and conservation of ground and surface water resources for agricultural uses and the need to minimize potential urban and fringe area development that would divert such resources away from agricultural uses.

Context Zones 1, 2, and 3 are all within Urban and Built-Up Land. Parcels located south of the project area are classified as Prime Farmland but will not be impacted by the proposed improvements. These parcels are zoned for Agricultural land use and are currently under Williamson Act contracts (APN# 062-311-037, 075-011-022, 075-031-016, 075-032-013).

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Convert Prime Farmland, Unique Farmland, or
Farmland of Statewide Importance (Farmland), as
shown on the maps prepared pursuant to the Farmland
Mapping and Monitoring Program of the California
Resources Agency, to non-agricultural use?
b) Conflict with existing zoning for agricultural use or a Williamson Act contract?
c) Conflict with existing zoning for, or cause rezoning of, forest land (as defined in Public Resources Code section 12220)g)), timberland (as defined by Public Resources
Code section 4526), or timberland zoned Timberland
Production (as defined by Government Code section
51104(g))?
d) Result in the loss of forest land or conversion of
forest land to non-forest use?

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e) Involve other changes in the existing environment
which, due to their location or nature, could result in conversion of Farmland to non-agricultural use?
* In determining whether impacts to agricultural resources are significant environmental effects, lead agencies may refer to the California Agricultural Land Evaluation and Site Assessment Model (1997), prepared by the California Department of Conservation as an optional model for use in assessing impacts on agricultural and farmland.

Discussion
a – e): As discussed above, Context Zones 1, 2, and 3 are all within Urban and Built-Up Land, while parcels to the south of the project area are classified as Prime Farmland, some of which are under Williamson Act contracts. Context Zones 1, 2, and 3 do not contain Important Farmland, agricultural zoning, lands under Williamson Act contract, or forest land. No impact to agricultural resources would occur in these zones regardless of the alternative chosen for the Halcyon Road and Fair Oaks Avenue intersection. Therefore, the project would not impact agricultural soils that currently support agricultural uses or could support agricultural uses in the future and no significant conversion of Prime Farmland, Unique Farmland, or Farmland of Statewide Importance would occur. The project would improve multimodal facilities, particularly for bicyclists and pedestrians, but would not substantially change existing uses and would not conflict with adjacent agricultural zoning or uses outside of the public right-of-way. The project area does not contain any forest land or timber land; no impact to these resources would occur. Therefore, the project would not result in other changes which, due to their nature or location, could result in conversion of Farmland.

Therefore, no impacts would occur.

Mitigation Measures and Residual Impacts
No significant impacts related to agricultural resources were identified; therefore, no mitigation measures are required.

III. Air Quality
Environmental Setting
San Luis Obispo County is part of the South-Central Coast Air Basin, which also includes Santa Barbara and Ventura Counties. The climate of the basin area is strongly influenced by its proximity to the Pacific Ocean.

Airflow around and within the basin plays an important role in the movement and dispersion of pollutants.

The speed and direction of local winds are controlled by the location and strength of the Pacific highpressure system and other global weather patterns, topographical factors, and circulation patterns that result from temperature differences between the land and the sea.

The San Luis Obispo County Air Pollution Control District (APCD) has developed and updated their CEQA Air Quality Handbook (2012) to evaluate project specific impacts and help determine if air quality mitigation measures are needed, or if potentially significant impacts could result. To evaluate long-term emissions, cumulative effects, and establish countywide programs to reach acceptable air quality levels, the APCD has prepared and adopted a Clean Air Plan.

The County’s air quality is measured by multiple ambient air quality monitoring stations, including four APCD operated permanent stations, two state-operated permanent stations, two special stations, and one station operated by Tosco Oil Refinery for monitoring Sulfur Dioxide (SO2) emissions.

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San Luis Obispo County is in non-attainment status for ozone (O3) and respirable particulate matter (PM10) under the California Air Resource Board (CARB) standards. The County is in attainment status for all other applicable CARB standards.

The project site is not within an area identified as having a potential for Naturally Occurring Asbestos (NOA) to occur based on the APCD’s NOA Map (APCD 2023).

Some land uses are considered more sensitive to changes in air quality than others, depending on the population groups and the activities involved. The California Air Resources Board (ARB) has identified the following typical groups who are most likely to be affected by air pollution: children under 14, the elderly over 65 years of age, athletes, and people with cardiovascular and chronic respiratory diseases. Sensitive receptors include residences, schools, playgrounds, childcare centers, athletic facilities, long-term health care facilities, rehabilitation centers, convalescent centers, and retirement homes. Sensitive receptors near the project area include nearby businesses and residences, Arroyo Grande Community Hospital and medical offices, Harloe Elementary School, Berean Bible Church, United Methodist Church, and The Temple of the People.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Conflict with or obstruct implementation of the
applicable air quality plan?
b) Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is in non-attainment under an applicable federal or state
ambient air quality standard (including releasing
emissions which exceed quantitative thresholds for
ozone precursors)?
c) Expose sensitive receptors to substantial pollutant
concentrations?
d) Create objectionable odors affecting a substantial
number of people?
* Where available, the significance criteria established by the applicable air quality management or air pollution control district may be relied on to make these determinations.

Discussion
a): The project would improve existing transportation infrastructure and does not propose a new or increased use in the project area. The proposed use is consistent with the general level of development anticipated and projected in the Clean Air Plan as well as other applicable regional and local planning documents. The project, including either alternative chosen for the Halcyon Road and Fair Oaks Avenue intersection, would improve the function of state and local transportation systems in the project area, thereby reducing congestion and generally benefitting air quality. Therefore, the proposed project would not conflict with or otherwise obstruct implementation of the APCD Clean Air Plan.

Potential impacts would be less than significant.

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b): The proposed project, including either alternative for the Halcyon Road and Fair Oaks Avenue intersection, is designed to support alternative means of transportation with an overarching goal of achieving air quality benefits through the reduced use of motor vehicles, reduced traffic congestion, and reduced GHG. Although construction activities on individual projects identified in the plan may result in a temporary, short-term increase in pollutants, there would be no long term, cumulative increase in the amount of criteria pollutants due to this project. Short term, construction related impacts are mitigated by mitigation measures AQ/mm-1 and AQ/mm-2.

Therefore, the project would not result in a net increase of any criteria pollutant and short-term construction related impacts would be less than significant with mitigation. c): Proposed improvements within the project area are located within close proximity to sensitive receptors (e.g., Arroyo Grande Community Hospital, Harloe Elementary School, which are located adjacent to the Halcyon Road right-of-way).

Construction Impacts. While the long-term benefits would improve air quality, short-term, construction related impacts could generate emissions that exceed the APCD recommended construction significance thresholds shown in Table 3.

Table 3: Screening Emission Rates for Construction Operations Pollutant
Threshold (1)
Daily Quarterly – Tier 1 Quarterly – Tier 2
ROG + NOx (combined) 137 lbs. 2.5 tons 6.3 tons
Diesel Particulate
Matter (DPM) 7 lbs. 0.13 tons 0.32 tons
Fugitive Dust (PM10)
(2) 2.5 tons
Greenhouse Gases
(CO2, CH4, N20, HFC,
CFC, F6S)
Amortized and combined with operational emissions

1. Daily and quarterly emission thresholds are based on the California Health & Safety Code and the CARB Carl Moyer Guidelines.

2. Any project with a grading area greater than 4.0 acres of worked area can exceed the 2.5-ton PM10 quarterly threshold.

Construction-generated emissions are short-term and of temporary duration, lasting only as long as construction activities occur, but possess the potential to represent a significant air quality impact, particularly when located in close proximity to sensitive receptors. Construction activities that typically result in short-term emissions may include, but are not limited to, demolition, site grading and excavation, road paving, motor vehicle exhaust associated with construction equipment and worker trips, and the movement of construction equipment, especially on unpaved surfaces. Emissions of airborne PM are largely dependent on the amount of ground disturbance associated with site preparation activities.

All construction vehicles and equipment would be required to be equipped with the State-mandated emission control devices pursuant to State emission regulations and standard construction practices.

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After construction is complete, all construction-related impacts would cease. Short-term construction emissions would be further reduced with the implementation of standard dust and diesel particulate matter (DPM) suppression measures outlined within the APCD rules and regulations.

The specific construction-related requirements associated with future development of the proposed improvements are not known at this time. As a result, no modeling of potential construction emissions was performed. However, future development would be anticipated to result in an increase in short-term construction-generated emissions. Project-related disturbance would be fairly minimal and would require limited grading, predominantly limited to the roundabout and areas of proposed road widening. As a result, construction of future transportation improvements would be considered to have a potentially significant short-term air quality impact. Implementation of mitigation measures AQ/mm-1 and AQ/mm2 would reduce potential impacts to be less than significant.

Construction-related impacts would be less than significant with mitigation Operational Impacts. The Plan would support alternative means of transportation, including improvements to transit, pedestrian, and bicycling networks. Although construction of future transportation improvements may result in a redistribution of local vehicle traffic, these improvements are proposed for purposes of improving overall circulation system performance, and reducing vehicle hours traveled, congestion, and idling. Modeling for the project shows that either alternative proposed for the intersection of Halcyon Road and Fair Oaks Avenue is anticipated to increase the level of service for vehicles. The increased level of service will decrease the amount of vehicle queueing and therefore, reduce the amount of emissions that the sensitive receptors will be exposed too.

Operational impacts would be less than significant.
d): Construction Impacts. Construction of the proposed project would generate odors associated with construction smoke/dust and equipment exhaust and fumes. Excavated and demolition materials may also contain objectionable odors within unearthed materials. The proposed construction activities would not differ significantly from those resulting from any other type of construction project. Any effects would be short-term in nature and limited to the construction phase of the project. Therefore, the project would not create objectionable odors affecting a substantial number of people.

Construction-related impacts would be less than significant.

Operational Impacts. The Plan would support alternative means of transportation, including improvements to transit, pedestrian, and bicycling networks. Although construction of future transportation improvements may result in a redistribution of local vehicle traffic, these improvements are proposed for purposes of improving overall circulation system performance, and reducing vehicle hours traveled, congestion, and idling. As a result, implementation of the proposed project would result in overall reductions in mobile-source emissions and odors. As a result, implementation of the proposed project would result in overall reductions in objectionable odors. This impact is considered less than significant.

Operational impacts would be less than significant.

Mitigation Measures and Residual Impact
To minimize the potential significant impacts to air quality, the following mitigation measures would be implemented.

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AQ/mm-1 Prior to issuance of construction permits, the following measures shall be incorporated into the construction phase of the project and shown on all applicable plans:

Construction Equipment
a. Maintain all construction equipment in proper tune according to manufacturer’s specifications;
b. Fuel all off-road and portable diesel-powered equipment with CARB-certified motor vehicle diesel fuel (non-taxed version suitable for use off-road); c. Use diesel construction equipment meetings CARB’s Tier 2 certified engines or cleaner offroad heavy-duty diesel engines, and comply with State Off-Road Regulation; d. Use on-road heavy-duty trucks that meet the CARB’s 2007 or cleaner certification standard for on-road heavy-duty diesel engines, and comply with the State On-Road Regulation;
e. Construction or trucking companies with fleets that that do not have engines in their fleet that meet the engine standards identified in the above two measures (e.g., captive or NOx exempt area fleets) may be eligible by proving alternative compliance; f. All on and off-road diesel equipment shall not idle for more than 5 minutes. Signs shall be posted in the designated queuing areas and or job sites to remind drivers and operators of the 5-minute idling limit;
g. Diesel idling within 1,000 feet of sensitive receptors is not permitted; h. Staging and queuing areas shall not be located within 1,000 feet of sensitive receptors; i. Electrify equipment when feasible;
j. Substitute gasoline-powered in place of diesel-powered equipment, where feasible; and, k. Use alternatively fueled construction equipment on-site where feasible, such as compressed natural gas (CNG), liquefied natural gas (LNG), propane, or biodiesel.

AQ/mm-2 Upon application for construction permits, all required PM10 measures shall be shown on applicable grading or construction plans and made applicable during grading and construction activities as described below.
a. Reduce the amount of the disturbed area where possible; b. Use of water trucks or sprinkler systems in sufficient quantities to prevent airborne dust from leaving the site and exceeding APCD’s limit of 20% opacity for greater than 3 minutes in any 60-minute period. Increased watering frequency would be required whenever wind speeds exceed 15 miles per hour (mph). Reclaimed (non-potable) water should be used whenever possible When drought conditions exist and water use is a concern, the contractor or builder should consider use of a dust suppressant that is effective for the specific site conditions to reduce the amount of water used for dust control;

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c. All dirt stockpile areas should be sprayed daily and covered with tarps or other dust barriers as needed;
d. All trucks hauling dirt, sand, soil, or other loose materials are to be covered or should maintain at least two feet of freeboard (minimum vertical distance between top of load and top of trailer) in accordance with California Vehicle Code §23114; e. “Track-Out” is defined as sand or soil that adheres to and/or agglomerates on the exterior surfaces of motor vehicles and/or equipment (including tires) that may then fall onto any highway or street as described in CVC Section 23113 and California Water Code 13304. To prevent ‘track out’, designate access points and require all employees, subcontractors, and others to use them. Install and operate a ‘track-out prevention device’ where vehicles enter and exit unpaved roads onto paved streets. The ‘track-out prevention device’ can be any device or combination of devices that are effective at preventing track out, located at the point of intersection of an unpaved area and a paved road. Rumble strips or steel plate devices need periodic cleaning to be effective. If paved roadways accumulate tracked out soils, the track-out prevention device may need to be modified; f. All fugitive dust mitigation measures shall be shown on grading and building plans; g. The contractor or builder shall designate a person or persons whose responsibility is to ensure any fugitive dust emissions do not result in a nuisance and to enhance the implementation of the mitigation measures as necessary to minimize dust complaints and reduce visible emissions below the APCD’s limit of 20% opacity for greater than 3 minutes in any 60-minute period. Their duties shall include holidays and weekend periods when work may not be in progress (for example, wind-blown dust could be generated on an open dirt lot). The name and telephone number of such persons shall be provided to the APCD Compliance Division prior to the start of any grading, earthwork or demolition (Contact the Compliance Division at 805- 781-5912).

Take additional measures as needed to ensure dust from the project site is not impacting areas outside the project boundary All of these fugitive dust mitigation measures shall be shown on grading, construction and building plans; and the contractor shall designate a person or persons to monitor the fugitive dust emissions and enhance the implementation of the measures as necessary to minimize dust complaints, reduce visible emissions below 20% opacity, and to prevent transport of dust off-site. Their duties shall include monitoring the effectiveness of the required dust control measures (as conditions dictate) and shall include holidays and weekend periods when work may not be in progress. The name and telephone number of such persons shall be provided to the APCD Compliance Division prior to the start of any grading, earthwork or demolition.

With the incorporation of these measures, residual impacts to air quality would be less than significant.

IV. Biological Resources
Environmental Setting
The project corridor is located within a developed area bordered by numerous businesses and residences.

Vegetation present within Context Zones 1, 2, and3 is limited to ruderal (disturbed) habitat along the road shoulder and landscaped areas that consist of ornamental groundcover and planted trees.

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Based on the California Natural Diversity Database (CNDDB) and an online species list approved by U.S.

Fish and Wildlife Service (USFWS), 52 special-status plant species, 37 special-status animal species, and 6 sensitive habitats were considered for potential to occur within the project area (CNDDB 2018, USFWS 2018). All of these species were taken into consideration within this impact analysis; however, it was determined that the entire project corridor does not provide suitable habitat for any sensitive plant or wildlife species, nor does the project corridor provide a suitable wildlife corridor. No sensitive species surveys were conducted as part of this analysis.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Have a substantial adverse effect, either directly or through habitat modification, on any species identified as a sensitive, candidate, or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Wildlife or the U.S.

Fish and Wildlife Service?
b) Have a substantial adverse effect on any riparian
habitat or other sensitive natural community identified in local or regional plans, policies, or regulations, or by the California Department of Fish and Wildlife or the
U.S. Fish and Wildlife Service?
c) Have a substantial adverse effect on state or federally protected wetlands (including, but not limited to,
marsh, vernal pool, coastal, etc.) through direct
removal, filling, hydrological interruption, or other
means?
d) Interfere substantially with the movement of any
native resident or migratory fish or wildlife species or with established native resident or migratory wildlife
corridors, or impede the use of native wildlife nursery sites?
e) Conflict with any local policies or ordinances
protecting biological resources, such as a tree
preservation policy or ordinance?
f) Conflict with the provisions of an adopted Habitat
Conservation Plan, Natural Community Conservation
Plan, or other approved local, regional, or state habitat conservation plan?
Discussion
a): Plant Species. Based on a literature review and database query, there are 52 special-status plant species that occur within a 10-mile radius of the project site. The project corridor is almost entirely developed and those areas with any vegetation are limited to ruderal (disturbed) and landscaped habitats.

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These habitats provide no value for sensitive species that occur in the region. Therefore, no focused surveys were needed to determine that the project corridor would not result in any impact to sensitive plant species.

Wildlife Species. Based on the literature review and database queries, 37 special-status animal species occur in the region. Due to lack of suitable habitat for these species, no state or federally listed species are expected to occur within the project corridor. However, the project corridor does provide some limited habitat for nesting migratory bird species within any vegetation occurring within the corridor.

Potential impacts to nesting migratory birds include direct impacts (injury or mortality) associated with the use and movement of construction equipment, construction materials and debris, and vegetation and/or tree or vegetation removal within the project corridor, if these species are nesting within proposed impact areas. Indirect impacts of construction activities, including destruction or modification of habitat and generation of noise, vibration, and dust may cause temporary disturbance to these species, if present.

Implementation of BIO/mm-1 and BIO/mm-2 such as appropriate timing of vegetation removal, preconstruction surveys, and exclusion zones would reduce the potential for adverse effects to specialstatus animal species.

Therefore, potential impacts to sensitive species would be less than significant with mitigation. b-c): There are no riparian habitats, sensitive habitats, designated critical habitat, wetlands, or jurisdictional features within the project corridor, except areas proposed as a part of the County’s separate Halcyon Road Projects (refer to Figure 2, Project Location).

Therefore, no impacts to riparian or sensitive habitat areas, jurisdictional waters, or wetlands would occur.
d): The project corridor does not contain wildlife corridors due to the extent of urban development.

Nearby, Arroyo Grande Creek provides a corridor for wildlife movement up and down the creek; however, no changes would occur within 700 feet of the creek. Proposed improvements would modify or replace similar existing infrastructure and would not interfere with the movement of species.

Therefore, no impacts would occur.
e): The City of Arroyo Grande Municipal Code Section 12.16 is designed to preserve, enhance, and revitalize the City’s urban forest. The proposed project could require that some trees be relocated or removed to accommodate street improvements within the right-of-way. The Complete Streets Plan proposes planted medians, landscaping, and street trees to reduce collisions and provide refuge for pedestrian crossings while beautifying the area. This would be consistent with the City’s tree ordinance and would not conflict with any other local policies or ordinances protecting biological resources.

Therefore, potential impacts would be less than significant. f): The project is not within an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other habitat conservation plan.

No impacts would occur.

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Mitigation Measures and Residual Impact
To minimize the potential significant impacts to biological resources, the following mitigation measures would be implemented.

BIO/mm-1: During construction, the project contractor shall implement the following measures, as appropriate to avoid the spread of invasive species:
a. To avoid the spread of invasive species, the contractor shall stockpile topsoil and redeposit the stockpiled soil within the excavated trenches after construction of the new project component is complete, or transport topsoil to a certified landfill for disposal. b. During construction, the project contractor will make all reasonable efforts to limit the use of imported soils for fill. Soils currently existing on-site should be used for fill material. If the use of imported fill material is necessary, the imported material must be obtained from a source that is known to be free of invasive plant species; or the material must consist of purchased clean material such as crushed aggregate, sorted rock, or similar. c. Any landscape and/or restoration planting plans, if proposed, must emphasize the use of native species expected to occur in the area. Project plans must avoid the use of plant species that the California Invasive Plant Council (Cal-IPC), California Exotic Pest Plant Council (CalEPPC), CDFW, or other resource organizations considers to be invasive or potentially invasive.

Prior to issuance of grading permits, all project landscape and restoration plans shall be verified to ensure that the plans do not include the use of any species considered invasive by the Cal-IPC, Cal-EPPC, or CDFW.
d. Use of rodenticides and herbicides shall be prohibited.

BIO/mm-2: If feasible, removal of trees or vegetation shall be scheduled to occur in the fall and winter (between September 1 and February 15), after fledging and before the initiation of the nesting season. If trees or vegetation must be removed from February 15 to September 15, a qualified biologist shall be retained to conduct pre-construction surveys for nesting bird species within the project site. If active nests are observed, the contractor shall either: 1) wait for such nesting birds to fledge and leave the project site; 2) establish 100-foot exclusion zones around active nests, where construction will not be allowed in these exclusion zones until young have fledged; or 3) consult with the appropriate resource agencies for guidance prior to site disturbance.

With the incorporation of these measures, residual impacts to biological resources would be less than significant.

V. Cultural Resources
Environmental Setting
The city is located within lands traditionally occupied by the Chumash. The project corridor is in the immediate vicinity of significant archaeological sites and is considered highly sensitive for archaeological resources.

There are no historic buildings or structures directly within the project corridor; however, the community of Halcyon, a designated National Historic Site, lies west of Halcyon Road between Temple Street and La

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Due Street in south of the project area. The County of San Luis Obispo’s General Plan has also identified this area to be within a Historic Resources Combining Designation, containing historic resources that include the Blue Star Memorial Temple, the Halcyon Store and US Post Office, the Hiawatha Lodge, and the Library. There are also numerous historic-age structures adjacent to the corridor that have not been evaluated for eligibility as a historic resource.

Museum collection records maintained by the University of California Museum of Paleontology (UCMP) indicate that 2,003 paleontological specimens have been recorded within San Luis Obispo County, from the Tertiary period and the Oligocenen and Miocenen epochs (UCMP 2018). The project corridor consists of the following geologic units: Qos (older sand dune deposits) and Qal (older alluvial deposits and beach sands). Sensitivity for paleontological resources in Qal is very low (no fossil records). Paleontological sensitivity in Qos is high, with typical fossil types consisting of terrestrial vertebrates.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Cause a substantial adverse change in the
significance of a historical resource as defined in §
15064.5?
b) Cause a substantial adverse change in the
significance of an archaeological resource pursuant to § 15064.5?
c) Disturb any human remains, including those interred
outside of formal cemeteries?
Discussion
a): There are no historic buildings or structures directly within the project corridor. The proposed project would not directly impact historical resources or cause a direct substantial adverse change in the significance of a historical resource. The project corridor extends adjacent to the community of Halcyon, a designated National Historic Site, and potentially other historic resources and structures in adjacent developed areas. The types of improvements proposed under the Complete Streets Plan would require minimal disturbance throughout the corridor (e.g., road striping, sidewalk construction) and would not significantly affect adjacent development. The proposed roundabout would be predominantly within existing road right-of-way and designed to facilitate improved access and connectivity with adjacent development and would not adversely affect the adjacent built environment.

Therefore, potential impacts would be less than significant. b): Given the abundance of historic and prehistoric archaeological resources known to be located in the City of Arroyo Grande, the project corridor is considered sensitive for the presence of known and previously unidentified archaeological resources. It is possible that intact archaeological deposits may be present below paved and/or developed portions of the study area. Early development may have served as a means of “capping” any resources that may have been present in the currently obscured portions of the project corridor. While these paved areas are planned to be subject to varying levels of potential disturbance, any excavations into native soils below prior disturbance would have a heightened potential for discovery of previously undiscovered, subsurface archaeological resources.

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Although the uppermost 2 to 3 feet within the road prism of developed areas have largely been disturbed by excavation from the placement of utilities and associated infrastructure, it is possible that intact native soils remain capped at greater depth. Where excavations for the proposed improvements occur in unpaved areas or extend to depths containing native soils in paved areas, there is increased potential to encounter buried archaeological deposits. A California Historic Resources Information System database search was performed and revealed that there are sensitive archaeological sites located in the proximity of the corridor. Despite the presence of sensitive sites near the project area, the inclusion of mitigation measures CUL/mm-1 CUL/mm-2, CUL/mm-3, and CUL/mm-4 will ensure impacts to any unknown resources that may be encountered during project development would be minimized.

Therefore, potential impacts would be less than significant with mitigation. c): No human remains are known to exist within the proposed project corridor, and the likelihood for unknown remains to exist is low within the uppermost 2 to 3 feet due to the extent of previous disturbance. However, the project corridor is considered highly sensitive for archaeological resources and the discovery of unknown human remains is always a possibility during ground disturbance. Protocol for properly responding to the inadvertent discovery of human remains is identified in the State of California Health and Safety Code Section 7050.5. This code section states that no further disturbance shall occur until the County of San Luis Obispo (County) Coroner has made a determination of origin and disposition pursuant to Public Resources Code Section 5097.98. The County Coroner must be notified of the find immediately. If the human remains are determined to be prehistoric, the Coroner will notify the California Native American Heritage Commission (NAHC), which will determine and notify a most likely descendant.

Mitigation measures CUL/mm-1 CUL/mm-2, CUL/mm-3, and CUL/mm-4 will ensure impacts to archaeological resources, including human remains, are avoided and minimized.

Therefore, potential impacts associated with the disturbance of human remains would be less than significant with mitigation.

Mitigation Measures and Residual Impact
To minimize the potential significant impacts to cultural resources, the following mitigation measures would be implemented.

CUL/mm-1 Prior to project implementation, including activities within paved areas and landscaped areas, the City shall prepare an Archaeological Monitoring Plan (AMP). A standard clause shall be included in every grading and construction contract to inform contractors of this requirement. The AMP shall include (but not be limited to) the following:
a. A list of personnel involved in the monitoring activities; b. Description of Native American involvement;
c. Description of how the monitoring shall occur;
d. Description of frequency of monitoring (e.g., full time, part time, spot checking); e. Description of what resources are expected to be encountered; f. Description of circumstances that would result in the halting of work at the project site;

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g. Description of procedures for halting work on the site and notification procedures; h. Description of monitoring reporting procedures; and, i. Provide specific, detailed protocols for what to do in the event of the discovery of human remains.

CUL/mm-2 An archaeological and Native American monitor shall be present during project related ground disturbing activities that have the potential to encounter previously unidentified archaeological resources, as outlined in the AMP prepared to satisfy CUL/mm-1. Archaeological monitoring may cease at any time if the City-qualified archaeologist, in coordination with City, determines that project activities do not have the potential to encounter and/or disturb unknown resources. A standard clause shall be included in every grading and construction contract to inform contractors of this requirement.

CUL/mm-3 If a potentially significant cultural resource is encountered during subsurface earthwork activities, and an archaeological and/or Native American monitor is not present, all construction activities within a 100-foot radius of the find shall cease and the City shall be notified immediately. Work shall not continue until a qualified archaeologist, in conjunction with locally affiliated Native American representative(s) as necessary, determines whether the uncovered resource requires further study. A standard inadvertent discovery clause shall be included in every grading and construction contract to inform contractors of this requirement. Any previously unidentified resources found during construction shall be recorded on appropriate California Department of Parks and Recreation (DPR) forms and evaluated for significance in terms of CEQA criteria by a qualified archaeologist. Potentially significant cultural resources consist of, but are not limited to, stone, bone, glass, ceramic, wood, or shell artifacts; fossils; or features including hearths, structural remains, or historic dumpsites.

If the resource is determined significant under CEQA, the qualified archaeologist shall prepare and implement a research design and archaeological data recovery plan, in conjunction with locally affiliated Native American representative(s) as necessary, that will capture those categories of data for which the site is significant. The archaeologist shall also perform appropriate technical analysis, prepare a comprehensive report, and file it with the CCIC, located at the University of California, Santa Barbara, and provide for the permanent curation of the recovered materials.

CUL/mm-4 If human remains are encountered during earth-disturbing activities, State Health and Safety Code Section 7050.5 requires that all work in the adjacent area shall stop immediately and that the County Coroner shall be notified immediately. Work shall not continue until the County Coroner has made a determination of origin and disposition pursuant to Public Resources Code Section 5097.98. If the human remains are determined to be prehistoric, the Coroner will notify the NAHC, which will designate and notify a Most Likely Descendant (MLD). The MLD shall complete the inspection of the site within 48 hours of notification and may recommend scientific removal and nondestructive analysis of human remains and items associated with Native American burials.

With the incorporation of these measures, residual impacts to cultural resources would be less than significant.

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VI. Energy
Environmental Setting
The City of Arroyo Grande’s General Plan and 2013 Climate Action Plan, the County Bikeways Plan, and the SLOCOG Regional Transportation Plan/ Sustainable Communities Strategy all set forth policies and goals aimed at reducing vehicle trips and energy used for transportation through coordinated transportation and land use planning. These measures include network and infrastructure improvements for alternative modes of transportation, improved public transportation, and mixed-use development.

Currently, the Halcyon corridor lacks safe and convenient alternatives to using a passenger vehicle for traveling.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Result in potentially significant environmental impact due to wasteful, inefficient, or unnecessary
consumption of energy resources, during project
construction or operation?
b) Conflict with or obstruct a state or local plan for
renewable energy or energy efficiency?
Discussion
a): The Plan proposes transportation enhancements that would encourage less energy and fossil fuel dependent modes of transportation such as walking and biking. However, during construction, fossil fuels, electricity, and natural gas would be used by construction vehicles and equipment. The energy consumed during construction would be temporary and would not represent a significant or wasteful demand for available resources, particularly given the beneficial nature of the proposed improvements. The roundabout alternative requires more energy consumption during construction than the signalized intersection alternative, however the roundabout is anticipated to reduce queueing times resulting in a net reduction of energy usage. Operationally, energy resources would be used for standard road maintenance and additional street lighting for safety. Other proposed improvements would generally reduce demand on energy and fossil fuel vehicle travel. As such, there are no unusual project characteristics during construction or throughout operation that would result in inefficient, wasteful use, or unnecessary consumption of energy resources.

Therefore, potential impacts would be less than significant. b): Implementation of the Complete Streets Plan would increase and improve options for alternative modes of transportation, encouraging vehicular trips to be replaced with less energy intensive, nonmotorized trips. Improvements proposed by the Complete Streets Plan are consistent with other state and local plans such as the City of Arroyo Grande’s General Plan and 2013 Climate Action Plan, the County Bikeways Plan, and the SLOCOG Regional Transportation Plan/ Sustainable Communities Strategy, which encourage the reduction of vehicle trips and energy used for transportation. Implementation of the Complete Streets Plan would result in a beneficial impact on transportation and energy and would not conflict with nor obstruct state or local plans for renewable energy or energy efficiency.

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Therefore, no impacts would occur.

Mitigation Measures and Residual Impacts
No significant impacts related to energy resources were identified; therefore, no mitigation measures are required.

VII. Geology and Soils
Environmental Setting
The proposed project is located within the Coast Ranges province, which is characterized by many elongate mountain ranges and valleys extending 600 miles along the coast of California from the Oregon border south to the Santa Ynez River in Santa Barbara County. The Arroyo Grande Valley (and the southern Cienega Valley portion) is located near the intersection of the California coastal ranges and the Los Angeles ranges. The project area through Context Zones 1, 2, and 3 is generally characterized by an urban landscape.

Arroyo Grande is located in a geologically complex and seismically active region. Seismic, or earthquake related, hazards have the potential to result in significant public safety risks and widespread property damage. Two of the direct effects of an earthquake include the rupture of the ground surface along the trend or location of a fault, and ground shaking that results from fault movement. Other geologic hazards that may occur in response to an earthquake include liquefaction, seismic settlement, and landslides.

The following soils are present within the project corridor: (MU) 170 – Marimel silty clay loam, drained; 176 – Mocho variant fine sandy loam; , 184 – Oceano sand, 0 to 9 percent slopes; 216 – Tierra sandy loam, 2 to 9 percent slopes (NRCS 2018). The US Department of Agriculture, Natural Resources Conservation Service’s Web Soil Survey was used to estimate the erodibility of the project site. The erosion factor within the project area is low to moderate in the range for erodibility.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Expose people or structures to potential substantial adverse effects, including the risk of loss, injury, or death involving:
i) Rupture of a known earthquake fault, as
delineated on the most recent Alquist-Priolo
Earthquake Fault Zoning Map, issued by the State
Geologist for the area, or based on other
substantial evidence of a known fault? (Refer to
Division of Mines and Geology Special Publication

42.)
ii) Strong seismic ground shaking?
iii) Seismic-related ground failure, including
liquefaction?
iv) Landslides?

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Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
b) Result in substantial soil erosion or the loss of
topsoil?
c) Be located on a geologic unit or soil that is unstable, or that would become unstable, as a result of the
project and potentially result in on- or off-site landslide, lateral spreading, subsidence, liquefaction, or collapse? d) Be located on expansive soil, as defined in Table 18- 1-B of the Uniform Building Code (1994), creating
substantial risks to life or property?
e) Have soils incapable of adequately supporting the
use of septic tanks or alternative waste disposal
systems, where sewers are not available for the
disposal of wastewater?
f) Directly or indirectly destroy a unique paleontological resource or site or unique geologic feature?
Discussion
a) – d): The project is located in an area with multiple geological characteristics that could contribute to unstable earth/soil conditions, including compressible/collapsible soils, high groundwater elevation, moderate liquefaction potential, and moderately high potential for seismic activity, ground shaking, and seismic settlement. Development within these soil conditions creates the risk for structure instability, damage, failure, and/or collapse.

Development of the project would be required to meet or exceed the most current requirements of the American Association of State Highway and Transportation Officials (AASHTO), which have been developed to establish the minimum requirements necessary for design to safeguard the public health, safety, and general welfare through structural strength, stability, access, and other standards. Project design elements are based on the Complete Streets Resources and Complete Streets Elements Toolbox (Version 2.0), the 2012 AASHTO Guide for the Development of Bicycle Facilities, and the 2004 AASHTO Guide for the Planning, Design, and Operation of Pedestrian Facilities.

Compliance with AASHTO and other applicable standards would typically indicate that risks to people and structures, including those related to unstable soil conditions, were properly safeguarded against. The project does not propose development of any habitable structures; therefore, no risk of injury or death as a result of damage or collapse of a habitable structure would occur. Improvements associated with the proposed project would occur within an existing footprint that has been previously disturbed and would not significantly alter the existing landscape, slopes, drainage, or other geologic conditions or characteristics. The proposed improvements are not in close proximity to sensitive areas that could be significantly adversely affected by soil erosion, sedimentation, or runoff. Improvements would primarily consist of roadway modifications to accommodate new bike lanes, roundabouts, and pedestrian crossings, and are not inherently structural. The proposed project would be in compliance with applicable

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standards and modern engineering practices that would reduce potential impacts associated with unstable seismic and geologic characteristics.

Therefore, impacts would be less than significant.
e): The project does not propose installation of any septic disposal system. Additionally, the City’s Municipal Code requires future developments within city limits to connect to sewer facilities that existing along the Halcyon Road corridor, therefore no septic systems will be installed for the foreseeable future.

Therefore, no impacts would occur.
f): The Halcyon Road corridor is largely comprised of engineered fill associated with the development of the existing roadway, utility infrastructure, and adjacent land development. No paleontological resources would occur within the previously disturbed road prism. Excavation and grading required for the majority of the project components would be surficial (limited to 1 foot or less in depth). Any disturbance at this depth would be within the disturbed road prism and would not have the potential to disturb sensitive geologic units.

Although the uppermost 2 to 3 feet within the road prism have largely been disturbed by excavation for previous development, it is possible that intact native soils within the Qos geologic unit remain capped at greater depths that could contain significant fossil resources. Where excavations for the project exceed 2 to 3 feet, there is increased potential to encounter buried paleontological resources.

Construction of the roundabout is the only project component expected to require more than surficial grading, although the precise depth of grading is not yet known. The roundabout is underlain by Qal and has very low potential to contain significant fossils.

Therefore, potential impacts would be less than significant.

Mitigation Measures and Residual Impacts
No significant impacts related to geology or soils were identified; therefore, no mitigation measures are required.

VIII. Greenhouse Gas Emissions
Environmental Setting
Greenhouse gases (GHG) are any gases that absorb infrared radiation in the atmosphere, and are different from the criteria pollutants discussed in Section III, Air Quality, above. The primary GHGs that are emitted into the atmosphere as a result of human activities are carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and fluorinated gases. These are most commonly emitted through the burning of fossil fuels (oil, natural gas, and coal), agricultural practices, decay of organic waste in landfills, and a variety of other chemical reactions and industrial processes (e.g., the manufacturing of cement). Carbon dioxide is the most abundant GHG and is estimated to represent approximately 80-90% of the principal GHGs that are currently affecting the earth’s climate. According to the ARB, transportation (vehicle exhaust) and electricity generation are the main sources of GHG in the state.

California has passed several pieces of legislation in the past few years aimed at dealing with GHG emissions and climate change. Executive Order S-3-05 set a goal to reduce California’s GHG emissions to:
(1) 2000 levels by 2010; (2) 1990 levels by 2020; and (3) 80% below 1990 levels by 2050. These goals were

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reinforced in 2006 with the passage of Assembly Bill 32 (AB 32) which set forth the same emission reduction goals and further mandated that the CARB create a plan, including market mechanisms, and develop and implement rules to achieve “real, quantifiable, cost-effective reductions of greenhouse gases.” Executive Order S-01-07 set forth California’s low carbon fuel standard, which requires the carbon intensity of the state’s transportation fuels to be reduced by 10% by 2020. In addition, Senate Bill 97 (SB 97) required amendments to the CEQA Guidelines to address GHG emissions; the amendments were put into effect on March 18, 2010.

The passage of AB32, the California Global Warming Solutions Act (2006), recognized the need to reduce GHG emissions and set the greenhouse gas emissions reduction goal for the State of California into law.

The law required that by 2020, State emissions must be reduced to 1990 levels. This is to be accomplished by reducing greenhouse gas emissions from significant sources via regulation, market mechanisms, and other actions. Subsequent legislation (e.g., SB97-Greenhouse Gas Emissions bill) directed the ARB to develop statewide thresholds.

In March 2012, the APCD approved thresholds for GHG emission impacts, and these thresholds have been incorporated into the APCD’s CEQA Air Quality Handbook. APCD determined that a tiered process for land use development projects was the most appropriate and effective approach for assessing the GHG emission impacts. In January 2021, SLO County APCD published Interim CEQA Greenhouse Gas Guidance for the SLO County APCD 2012 CEQA Air Quality Handbook to provide administrative clarification on the thresholds for significance for GHG emissions. This document identifies the previous bright-line threshold of 1,150 MT CO2/yr. and efficiency threshold of 4.9 MT CO2/yr. per service population as inappropriate for CEQA evaluations because they are based on AB 32 which had a horizon of 2020. For projects implemented beyond 2020, the APCD recommends using one of the following thresholds:

1. Consistency with a Qualified Climate Action Plan (CAP): CAPs conforming to CEQA Guidelines §15183 and 15183.5 would be qualified and eligible for project streamlining under CEQA.

2. No-net Increase: California’s 2017 Climate Change Scoping Plan states that no-net increase in GHG emissions relative to baseline conditions is an appropriate overall objective for new development.

The City of Arroyo Grande adopted a Climate Action Plan (CAP) on November 26, 2013. The City’s CAP is a long-range plan to reduce GHG emissions from City government operations and community activities within Arroyo Grande and prepare for the anticipated effects of climate change. To achieve the state recommended target of 15% below 2005 levels (71,739 metric tons of CO2 equivalent [MT CO2e]) by 2020 and prepare for the anticipated effects of climate change, the CAP identifies climate action measures.

Collectively, the measures identified in the CAP have the potential to reduce GHG emissions within Arroyo Grande by 5,371 MT CO2e (17% below the 2005 baseline) by 2020 and meet the reduction target.

It should be noted that projects that generate less than the above-mentioned thresholds will also participate in emission reductions because air emissions, including GHGs, are under the purview of the California Air Resources Board (or other regulatory agencies) and will be “regulated” by either CARB, the Federal Government, or other entities. For example, new vehicles will be subject to increased fuel economy standards and emission reductions, large and small appliances will be subject to more strict emissions standards, and energy delivered to consumers will increasingly come from renewable sources.

Other programs that are intended to reduce the overall GHG emissions include Low Carbon Fuel Standards, Renewable Portfolio standards and the Clean Car standards. As a result, even the emissions that result from projects that produce fewer emissions than the threshold will be subject to emission reductions.

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Under CEQA, an individual project’s GHG emissions would not generally result in direct significant impacts.

This is because the climate change issue is global in nature. However, an individual project could be found to contribute to a potentially significant cumulative impact. Projects that have GHG emissions above the noted thresholds may be considered cumulatively considerable and require mitigation.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Generate greenhouse gas emissions, either directly
or indirectly, that may have a significant effect on the environment?
b) Conflict with an applicable plan, policy or regulation adopted for the purpose of reducing the emissions of
greenhouse gases?
Discussion
a – b): Development of the Complete Streets Plan has been funded in part by the Caltrans’ Sustainable Transportation Planning Grant Program, which provides funding for projects that include climate change adaptation plans for transportation facilities. One of the primary goals of the Plan is to recognize opportunities for GHG reduction through reduced motor vehicles and traffic congestion. California’s 2017 Climate Change Scoping Plan identifies complete street design policies as a strategy to reduce VMT.

Similarly, the City’s CAP identifies transportation and land use measures that will result in a reduction of GHG emissions. Climate Action Measures TL-1 and TL-2 identify improvement and expansion of the City’s bicycle and pedestrian networks and infrastructure as a strategy to reduce GHG emissions. The CAP estimates that together these two measures have the potential to reduce GHG by 259 MT CO2e based on 2020 targets. The project proposes roadway infrastructure improvements that would encourage multimodal transportation and improve circulation by incorporating complete street design elements such as dedicated bike lanes throughout the corridor Traffic calming measures such as curb extensions, median islands, lead pedestrian intervals all contribute to an improved pedestrian circulation network in accordance with the CAP. Project-related traffic would be limited to construction activities and the project would require limited amounts of electricity for traffic and safety lighting, etc.

The project would not exceed adopted GHG thresholds applied by the APCD because the plan is consistent with implementation measures identified in the CAP as a strategy to reduce GHG emission, and therefore, is not anticipated to generate significant GHG emissions. Additionally, the project is expected to improve traffic operations and congestion and reduce queueing at intersections, which will also result in a longterm reduction in GHG emissions. The project would not conflict with the statewide regulations listed above.

Impacts would be less than significant.

Mitigation Measures and Residual Impacts
No significant impacts related to GHGs were identified; therefore, no mitigation measures are required.

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IX. Hazards and Hazardous Materials
Environmental Setting
Based on a search of the California Department of Toxic Substance Control’s EnviroStor database and the State Water Resources Control Board’s Geotracker system, there are several environmental cleanup sites adjacent to the project corridor. All sites have been determined completed and closed, indicating that the site has been remediated to the satisfaction of regulatory agency staff.

The project corridor currently supports local vehicular use. It is highly likely that the surface soils along these roadways are affected by deposition of contaminants, including aerial lead, oils, fuels, and other lubricants.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Create a significant hazard to the public or the
environment through the routine transport, use, or
disposal of hazardous materials?
b) Create a significant hazard to the public or the
environment through reasonably foreseeable upset
and/or accident conditions involving the release of
hazardous materials, substances, or waste into the
environment?
c) Emit hazardous emissions or handle hazardous or
acutely hazardous materials, substances, or waste
within one-quarter mile of an existing or proposed
school?
d) Be located on a site which is included on a list of
hazardous materials sites, compiled pursuant to
Government Code §65962.5, and, as a result, create a
significant hazard to the public or environment?
e) Be located within an airport land use plan or, where such a plan has not been adopted, within two miles of
a public airport or public use airport, would the project result in a safety hazard or excessive noise for people residing or working in the project area?
f) Impair implementation of or physically interfere with an adopted emergency response plan or emergency
evacuation plan?
g) Expose people or structures, either directly or
indirectly, to a significant risk of loss, injury, or death from wildland fires?

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Discussion
a): The proposed project would not change existing land uses or cause a routine or permanent increase in the transport of hazardous substances within the project area. No change in the long-term transport or handling of hazardous materials within proximity to adjacent schools would occur except during limited short-term construction activities.

Therefore, impacts would be less than significant.
b)-c) As discussed previously, it is highly likely that the surface soils along these roadways are affected by deposition of contaminants, including aerial lead, oils, fuels, and other lubricants. Aerially deposited lead (ADL) is often found along unpaved areas adjacent to highways as a result of tailpipe emissions occurring during years that lead was used as an additive in gasoline. When present in high enough concentrations, it is possible for ADL to cause soils to be classified as a hazardous waste, which could become a health hazard for people exposed to the soil. The soil would be classified as hazardous waste if total lead concentrations exceed 1,000mg/kg or soluble lead concentrations exceed 5.0 mg/l. If ADL is present at high concentrations in the soil that would be exposed during construction of the proposed project, it could present a significant impact associated with hazardous materials. Built structures within the project area proposed for demolition or removal, including concrete, painted surfaces, treated wood poles, and the soils surrounding these structures could contain asbestos containing material, lead-based paint, petroleum hydrocarbons and other wood preservative chemicals which could be hazardous if disturbed.

Therefore, mitigation measure HAZ/mm-2 will reduce the potential impacts associated with exposure to soil containing ADL or other hazardous substances during construction of the proposed project.

Oils, gasoline, lubricants, fuels, and other potentially hazardous substances would be used and stored onsite during construction activities. Should a spill or leak of these materials occur during construction activities, sensitive resources within the project vicinity could be adversely affected. The project corridor consists of urbanized areas within Context Zones 1, 2, and 3 and does not contain sensitive habitats or areas that could be substantially affected by a spill. Such activities would occur in close proximity to Harloe Elementary School, Arroyo Grande Community Hospital and other sensitive adjacent land uses. However, such use would be short-term and subject to standard requirements for the handling of hazardous materials. Therefore, mitigation measure HAZ/mm-1 ensures potential impacts associated with a spill of hazardous materials during construction would be reduced to less than significant.

A review of the U.S. Geological Survey map of the Arroyo Grande Northeast 7.5-Minute Quadrangle indicates the majority of the project area is underlain by Holocene to late-Pleistocene-aged alluvial deposits consisting of unconsolidated sand, silt, and clay, and old Pleistocene-eolian deposits. The project is not located within an area identified as having the potential to contain naturally occurring asbestos (NOA) based on the APCD’s NOA map. Therefore, potential impacts associated with NOA are less than significant.

The project does not propose the use, storage or discharge of any hazardous substances during project operation and would not change the existing land use of the project site or substantially increase the potential use of hazardous materials in the project vicinity. Therefore, the project would not create a significant hazard to the public through foreseeable accident or upset.

Mitigation measures have been proposed to minimize the potential for exposure to unknown hazardous soil contaminants, and to minimize potential impacts associated with lead-based paint, aerially deposited lead, and other known hazards within the project area.

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Therefore, potential impacts would be less than significant with mitigation. d): There are no active hazardous material sites within the project boundary. Within Context Zone 1, there is a leaking underground storage tank (LUST) cleanup site associated with the former Craig Texaco approximately 200 feet east of the Halcyon Road/El Camino Real intersection. The cleanup status is completed, and the case was closed as of June 2, 1988. In Context Zone 2, there is a LUST cleanup site associated with Former 76 Station at the southeast corner of the Grand Avenue/Halcyon Road intersection. The cleanup status is completed, and the case was closed as of September 2, 2008, (SWRCB 2016). Improvements would primarily occur within the right-of-way and would not occur near any of the underground storage tank sites.

Therefore, impacts would be less than significant.
e): The Oceano County Airport, a small regional airport, is located approximately 1.5 miles west of the project corridor. The project would not substantially change land uses from existing conditions, would not permanently place people or structures in the Airport Review Area, and people working in the project area would not be exposed to additional hazards or substantial noise as a result of the project. The proposed project would not result in increased hazards related to air traffic.

Therefore, impacts would be less than significant.
f): The project would improve existing transportation infrastructure to improve operation of the local roadway network in Arroyo Grande. However, construction-related congestion and loss of access could also affect emergency access to and from the Arroyo Grande Police Station and Arroyo Grande Hospital. Traffic and circulation plans will be prepared prior to the initiation of construction activities to reduce impacts related to emergency access. In accordance with mitigation measure HAZ/mm-5. The project would improve long-term access in the project vicinity and adequate alternative access exists for emergency purposes during construction activities. Therefore, the project would not substantially interfere with any emergency response or evacuation plans.

Therefore, impacts would be less than significant with mitigation. g): The proposed project is located in an urban area and would not expose people or structures to a substantial risk of wildfires. Five Cities Fire Authority Station One, serving Arroyo Grande, is located approximately 1 mile from the project corridor and response times would be within acceptable levels.

Therefore, impacts would be less than significant.

Mitigation Measures and Residual Impact
To minimize the potential significant impacts related to hazards and hazardous materials, the following mitigation measures would be implemented.

HAZ/mm-1 Prior to construction, the City shall prepare a Hazardous Material Spill Prevention, Control and Countermeasure Plan to minimize the potential for, and effects of, spills of hazardous or toxic substances during construction of the project. The plan shall be submitted for review and approval by the City Public Works Director, and shall include, at minimum, the following:
a. A description of storage procedures and construction site maintenance and upkeep practices;

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b. Identification of a person or persons responsible for monitoring implementation of the plan and spill response;
c. Identification of Best Management Practices (BMPs) to be implemented to ensure minimal impacts to the environment occur, including but not limited to the use of containment devices for hazardous materials, training of construction staff regarding safety practices to reduce the chance for spills or accidents, and use of non-toxic substances where feasible;
d. A description of proper procedures for containing, diverting, isolating, and cleaning up spills, hazardous substances and/or soils, in a manner that minimizes impacts on surface and groundwater quality and sensitive land uses and resources;
e. A description of the actions required if a spill occurs, including which authorities to contact and proper clean-up procedures; and
f. A requirement that all construction personnel participate in an awareness training program conducted by qualified personnel approved by the City Public Works Director. The training must include a description of the Hazardous Materials Spill Prevention, Control and Countermeasure Plan, the plan’s requirements for spill prevention, information regarding the importance of preventing spills, the appropriate measures to take should a spill occur, and identification of the location of all clean-up materials and equipment.

HAZ/mm-2 A Soil Management Plan and Health and Safety Plan shall be developed for the project and subject to approval by the City to ensure contaminated soils excavated during project construction are handled, stockpiled, and disposed of in accordance with federal, state, and local regulations. Soils excavated during the project shall be tested for lead concentrations and the Soil Management Plan shall establish a Reuse Screening Level for the excavated soils; excavated soils with contaminant concentrations below the Reuse Screening Levels may be reused during construction on the right-of-way, while soils with contaminant concentrations exceeding the Reuse Screening Levels shall be managed as hazardous waste and disposed of at a facility that accepts soil with the detected concentrations of contaminants. Special handling, treatment, or disposal of aerially deposited lead in soils during construction activities within that portion of the project within Caltrans right of way shall be consistent with the California Department of Toxic Substances Control and Caltrans Soil Management Agreement for Aerially Deposited Lead-Contaminated soils (effective July 1, 2016).

HAZ/mm-3 Prior to initiation of construction, a Lead Compliance Plan shall be prepared by the contractor to prevent or minimize worker exposure to lead from handling material containing aerially deposited lead (California Code of Regulations, Title 8, Section 1532.1). This plan shall also be required for work performed on painted structures. The contractor shall prepare a written, project-specific Excavation and Transportation Plan establishing procedures the contractor shall use for excavating, stockpiling, transporting, and placing (or disposing) of material containing aerially deposited lead. The plan must conform to Department of Toxic Substance Control and California Occupational Safety and Health Administration regulations. For samples where lead levels exceed hazardous waste criteria, the excavated soil shall be either managed or disposed of

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as a California hazardous waste or stockpiled and resampled to confirm waste classification and potential utilization of Caltrans’ hazardous waste agreement to recycle soil on site.

HAZ/mm-4 Built structures within the project area proposed for demolition or removal, including all concrete, painted surfaces, and treated wood poles and soils at the base of poles, shall be tested for asbestos containing material, lead-based paint, and petroleum hydrocarbons and other wood preservative chemicals. Testing shall be conducted prior to initiation of construction and estimates during the Plans, Specifications, and Estimates phase of the project shall include provisions for proper removal and disposal by a licensed contractor. Any identified contaminants and toxic materials shall be handled, treated, and disposed of in accordance with applicable rules and regulations.

HAZ/mm-5 Prior to the initiation of construction activities, the City shall prepare a Construction Timing, Access, and Circulation Plan, which shall include the following measures. This plan shall be approved by the City Public Works Director prior to the start of construction and made available to emergency responders to review and comment on prior to the onset of construction activities.
a. Methods for ensuring permanent access to the commercial/retail centers throughout the project corridor is preserved and/or improved to the maximum extent feasible through implementation of the proposed project. b. A signage plan and other methods, if feasible, for increasing the visibility of business blocked by construction activities and educating travelers that businesses adjacent to the project corridor are to remain open during construction;
c. Clearly marked detour routes for alternate access to any businesses that are made inaccessible or difficult to access due to construction activities; d. Hours of haulage (8:00 a.m. to 5:00 p.m.);
e. Designation of truck routes that avoid sensitive land uses (Harloe Elementary School, Arroyo Grande Community Hospital) and residential areas to the extent possible;
f. Methods of traffic control on adjacent streets within the project area; g. Adequate safety signage regarding traffic control;
h. Designated construction staging areas for construction personnel vehicles, supplies, and equipment;
i. A telephone number for local residents to call if there are issues or complaints; and
j. Measures to resolve potential conflicts between construction activities and adjacent businesses.

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Emergency providers directly adjacent to a construction area, including the Arroyo Grande Police Department and Arroyo Grande Community Hospital, shall be directly notified of the availability of and allowed to comment on the plan.

With the incorporation of these measures, residual impacts related to hazards and hazardous materials would be less than significant.

X Hydrology and Water Quality
Environmental Setting
The project area is located in the Estero Bay Hydrologic Unit, in the Arroyo Grande Hydrologic Area, and in the Oceano Hydrologic Sub-Area – Hydrologic Unit Number 310.31. The proposed project is located primarily within the Arroyo Grande Creek watershed, approximately 7.5 miles below the Lopez Lake Dam.

US Geological Service quadrangle maps for Oceano, California show Arroyo Grande Creek a blue-line stream to the east and southeast of the project area.

The Federal Emergency Management Agency Flood Insurance Rate Map indicates the project area is within Zone X, an area of minimal hazard. Zone X floodplains generally have a 0.2% to 1% chance of annual flooding.

The project area is underlain by the Santa Maria Groundwater Basin, which underlies more than 280 square miles in the southwestern corner of San Luis Obispo County and the northwestern corner of Santa Barbara County. In San Luis Obispo County, the Santa Maria Basin consists of the main basin (Santa Maria) and three subbasins: Arroyo Grande Valley, Pismo Creek Valley, and Nipomo Valley. The project area is within the Arroyo Grande Valley subbasin, which underlies approximately 3,860 acres. The subbasin is drained by Arroyo Grande Creek and its tributaries from below Lopez Lake Dam to the basin’s southern boundary at the Wilmar Avenue fault, which separates it from the main Santa Maria Basin.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Violate any water quality standards or waste
discharge requirements or otherwise substantially
degrade surface or ground water quality?
b) Substantially deplete groundwater supplies or
interfere substantially with groundwater recharge, such that the project may impede sustainable groundwater
management of the basin?

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Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
c) Substantially alter the existing drainage pattern of the site or area, including through alteration of the
course of a stream or river, in a manner which would:
(i) result in substantial on- or off-site erosion or
siltation;
(ii) substantially increase the rate or amount of surface runoff in a manner which would result in flooding on- or offsite;
(iii) create or contribute runoff water which would
exceed the capacity of existing or planned stormwater
drainage systems or provide substantial additional
sources polluted runoff; or
(iv) impede or redirect flood flows?
d) In flood hazard, tsunami, or seiche zones, risk release of pollutants due to project inundation?
e) Conflict with or obstruct implementation of a water
quality control plan or sustainable groundwater
management plan?
Discussion
a), d)-e): The project would incorporate proposed design pollution prevention BMPs and temporary construction site BMPs. The project design allows for the ease of maintaining all BMPs throughout the period of construction. Construction activities can be phased to minimize soil-disturbing activities during the rainy season and all disturbed soil areas would be paved or stabilized by the end of construction.

The exhaust from construction equipment contains hydrocarbons, oxides of nitrogen, carbon monoxide, suspended particulate matter, and odors, which could have an effect on adjacent waterways. Leaky construction equipment has the potential to drip or spill fuels, petroleum products, and hydraulic fluids among other hazardous substances. The use of asphalt, concrete, and other harmful chemicals during construction activities could increase the potential for these substances to be transported off-site via stormwater and possibly drain to other waterbodies.

It is estimated that the largest percentage of construction pollutants would be dust generated during excavation, grading, hauling, and various other activities. The impacts of these activities would vary each day as construction progresses and onsite conditions change. No disturbance would occur within 700 feet of Arroyo Grande Creek and the project corridor does not contain any other natural drainages. Temporary construction site stormwater BMPs would be implemented to minimize or eliminate chemical releases to developed stormwater infrastructure that could drain to ground and surface waters.

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Standard temporary construction site and permanent design pollution prevention would be utilized during and after construction of the project to control potential discharges of pollutants. BMPs shall be designed with the goal of controlling general gross pollutants and/or sedimentation/siltation, depending on location. Based on the area of disturbance, a SWPPP could be required, which would include all the BMPs necessary to prevent water quality impacts during construction of the project. Mitigation measures HYD/mm-1 and HYD/mm-2, which require the preparation of a SWPPP and temporary construction BMPs, will be implemented to prevent degradation to water quality.

Therefore, impacts would be less than significant with mitigation. b): The project would not create long-term water demand and would not deplete groundwater supplies. Short-term construction related water demands would be served by the City’s non-potable municipal water supply.

Impacts would be less than significant.
c): Construction of the proposed project would include improving infrastructure and upgrading facilities along the project corridor and would not result in a substantial increase in impervious surfaces and is not expected to create or contribute to a substantial increase in runoff.

The project does not propose significant alterations to existing drainage patterns. Stormwater will divert to existing infrastructure and rates would not be significantly different than baseline conditions.

Impacts would be less than significant.

Mitigation Measures and Residual Impact
To minimize the potential significant impacts related to hydrology and water quality, the following mitigation measures would be implemented.

HYD/mm-1 Prior to commencement of construction activities that would result in disturbance of 1 acre or greater, the City shall prepare a Storm Water Pollution Prevention Plan (SWPPP), which shall include Best Management Practices (BMPs) to be implemented and monitored prior to and during construction. The SWPPP would include a Construction Site Monitoring Program that presents procedures and methods related to the visual monitoring and sampling and analysis plans for non-visible pollutants, sediment and turbidity, and pH.

HYD/mm-2 The City shall implement, at minimum, the following BMPs.

Temporary Construction Measures
a. All substantial ground disturbance shall be limited to the dry season or periods when rainfall is not predicted to the extent feasible, to minimize erosion and sediment transport to surface waters;
b. Disturbed areas shall be stabilized or re-vegetated prior to the start of the rainy season; c. Impacts to vegetation shall be minimized. The work area shall be flagged to identify its limits. Vegetation shall not be removed or intentionally damaged beyond these limits.

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d. Construction materials and soil piles shall be placed in designated areas where they could not enter storm drains due to spillage or erosion.
e. Waste and debris generated during construction shall be stored in designated waste collection areas and containers away from watercourses, and shall be disposed of regularly.
f. During construction, washing of concrete trucks, paint, equipment, or similar activities shall occur only in areas where polluted water and materials can be contained for subsequent removal from the site. Wash water shall not be discharged to the storm drains, street, drainage ditches, creeks, or wetlands. Concrete washout area shall be isolated from storm drains, and wash water and waste shall be removed from the project site. The location of the washout area shall be clearly noted at the construction site with signs. g. All fueling of heavy equipment shall occur in a designated area removed from on-site drainages, such that any spillage would not enter surface waters. The designated refueling area shall include a drain pan or drop cloth and absorbent materials to clean up spills. The location of the fueling area shall be clearly noted at the construction site with signs. h. Vehicles and equipment shall be maintained properly to prevent leakage of hydrocarbons and coolant and shall be examined for leaks on a daily basis. All maintenance shall occur in a designated offsite area. The designated area shall include a drain pan or drop cloth and absorbent materials to clean up spills.
i. Any accidental spill of hydrocarbons or coolant that may occur on the construction site shall be cleaned immediately. Absorbent materials shall be maintained on the construction site for this purpose.
j. Temporary placement of fill shall be located outside of any drainage ways. k. Adequate measures shall be applied to all disturbed portions of the project site to control dust, such as daily watering or hydro-mulching until vegetation cover is well established. l. Any fill or stockpiling that is to be left more than 30 days shall be hydro-seeded or covered immediately upon completion of the fill or stockpiling work. m. All fill material shall be “clean” and free of any potentially hazardous materials or hazardous waste.
n. Rain Event Action Plan (REAP). Risk Level 2 projects are required to prepare a REAP, which will describe projected storm information and list specific actions required to be taken before predicted rain events.
o. Soil Stabilization Measures. Minimum soil stabilization measures for the project shall include move-in/move-out erosion control, use of temporary hydraulic mulch on any exposed disturbed soils, temporary covers to protect disturbed soil areas, and temporary fencing to designate environmentally sensitive areas as outside of the work area limits.

Analysis of additional soil stabilization measures will continue during the design phase.

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p. Sediment Control Measures. Minimum sediment control measures for the project shall include temporary fiber rolls to minimize sediment-laden sheet flows and concentrated flows from discharging offsite, and temporary drainage inlet protection to prevent sediment from entering current or proposed storm drains. Investigation into additional sediment control measures, including the use of sediment traps, will continue during the design phase.
q. Tracking Controls. To prevent the tracking of mud and dirt off-site, stabilized construction entrances and exits shall be placed at multiple points throughout the project site. Street sweeping shall be implemented to remove any tracked sediment. r. Waste Management and Materials Pollution Control. Concrete washout bins shall be considered for all concrete-related work activities.
s. Job Site Management. The project’s proposed Construction Site Management includes controlling potential sources of water pollution before they enter any stormwater systems or watercourses and employee and subcontractor training, including the proper selection, deployment, and repair of construction site BMPs used within the project site. t. Stormwater Sampling and Analysis. Risk Level 2 projects are required to perform stormwater sampling at all discharge locations during qualifying rain events. The samples shall be analyzed for pH and turbidity, and subject to numeric action levels.

Permanent Design Measures
u. Existing vegetation shall be preserved to the maximum extent possible. The proposed improvements would result in minimal clearing or grubbing because the majority of the study area is currently paved.

With the incorporation of these measures, residual impacts related to hydrology and water quality would be less than significant.

XI. Land Use and Planning
Environmental Setting
The Plan’s project area consists of a 1.2-mile stretch between US 101 and The Pike along Halcyon Road within City of Arroyo Grande. Halcyon Road is a 2- to 4-lane paved roadway that serves as an important regional route between Arroyo Grande and the communities of Grover Beach, Oceano and Nipomo. As previously discussed, the project area is broken into three (3) distinct Context Zones, starting with the most developed in Context Zone 1 at the northern end of the project site and transitioning to a residential neighborhood setting in Context Zone 3. Land uses within the project area predominantly consist of commercial, retail, public facilities, residential, and agricultural, including churches, schools, the Arroyo Grande Cemetery, the Arroyo Grande Community Hospital, and the Arroyo Grande Police Department.

The project crosses multiple zoning and land use designations such as Community Facilities, Mixed Use, Single Family Residential – Medium Density, Office Professional, Multi-Family Residential – Medium Density, and Multi-Family Residential – Very High Density within the City of Arroyo Grande. The parcels surrounding the project area are zoned Public Facility, Highway Mixed Use, Fair Oaks Mixed Use, SingleFamily, Multiple Family, and Office Mixed Use within the City of Arroyo Grande.

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Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Physically divide an established community?
b) Conflict with the applicable land use plan, policy, or regulation of any agency with jurisdiction over the
project (including, but not limited to, a general plan, specific plan, local coastal program, or zoning
ordinance) adopted for the purpose of avoiding or
mitigating an environmental effect?
Discussion
a): The project would improve existing infrastructure and circulation within the city by encouraging multimodal transportation and by creating a new vibrant civic space that would increase social interactions and public health. The project would improve connectivity throughout the corridor and would not divide any portion of the city.

Therefore, impacts would be less than significant.
b): To the extent feasible, the following policy and planning documents were reviewed for consistency and referenced in the Complete Streets Plan: South Halcyon Corridor Study, City of Arroyo Grande General Plan Circulation Element, County of San Luis Obispo General Plan, 2015/16 County Bikeways Plan, SLOCOG Regional Transportation Plan/ Sustainable Communities Strategy: Connecting Communities, City Climate Action Plan, California AB 1358 – Complete Streets Act, City of Arroyo Grande Bicycle and Trails Master Plan, Urban Bikeways Design Guide 2nd Edition NACTO, Urban Streets Design Guide NACTO, California AB 32, Main Street, California: A Guide for Improving Community and Transportation Vitality 2003, Complete Streets Implementation Action Plan 2.0 (CSIAP 2.0) June 2014 - June 2017, and Safe Routes to School.

The proposed project would enhance safety for all modes of travel while improving circulation and connectivity within the city. The project would also promote economic vitality while improving the overall visual character of the area. The project would not conflict with any of the policy or planning documents referenced above and would further the State Transportation Planning Goals and the Federal Transportation Planning Goals as required by the Caltrans Sustainable Transportation Planning Grant Program, a major funding source for the project.

Therefore, no impacts would occur.

Mitigation Measures and Residual Impacts
No significant impacts related to land use and planning were identified; therefore, no mitigation measures are required.

XII. Mineral Resources
Environmental Setting
The project site does not contain any known mineral resources.

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Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Result in the loss of availability of a known mineral resource that is or would be of value to the region and the residents of the state?

b) Result in the loss of availability of a locally important mineral resource recovery site delineated on a local
general plan, specific plan, or other land use plan?
Discussion
a – b): There are no known mineral resources in the project area, and future extraction of mineral resources is very unlikely due to the urbanized nature of the area.

Therefore, no impacts to mineral resources would occur.

Mitigation Measures and Residual Impact
No impacts to mineral resources were identified; therefore, no mitigation measures are necessary.

XIII. Noise
Environmental Setting
The Noise Element of the City of Arroyo Grande General Plan provides policy framework for addressing potential noise impacts. The Noise Element establishes maximum allowable noise exposure levels for transportation and non-transportation noise sources. The standards applied to transportation noise sources are based on average-daily noise exposure levels (in A-weighted decibels [dBA] Community Noise Equivalent Level/day-night equivalent level [CNEL/Ldn]). For noise-sensitive land uses exposed to nontransportation noise, the maximum allowable noise exposure standards vary depending on the duration of exposure and time of day. The Noise Element’s maximum allowable noise exposure from transportation noise sources is generally 60 dB for exterior areas (70 dB for playgrounds) and 45 dB for interior spaces (35 dB for theaters, auditoriums, and music halls).

Would the project result in:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Generation of a substantial temporary or permanent
increase in ambient noise levels in the vicinity of the project in excess of standards established in the local general plan or noise ordinance or applicable standards of other agencies?
b) Generation of excessive ground borne vibration or
ground borne noise levels?

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Would the project result in:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
c) For a project located within the vicinity of a private airstrip or an airport land use plan, or where such a plan has not been adopted, within two miles of a public
airport or public use airport, would the project expose people residing or working in the project area to
excessive noise levels?
Discussion
a) – b): Construction Impacts. During construction of the project, noise from construction activities may intermittently increase ambient noise levels in the immediate area of construction. The City’s Municipal Code creates an exception to noise standards for construction activities occurring between 7:00 a.m. and 10 p.m. on Mondays through Fridays and 8:00 a.m. to 5:00 p.m. on Saturdays and Sundays. Therefore, the project would be required to stay within the City’s allowable maximum noise levels or be limited to the hours identified as acceptable in the City’s municipal code for construction noise in excess of those noise standards.

Table 4 summarizes noise levels produced by construction equipment that is commonly used on roadway construction projects. Construction equipment is expected to generate noise levels ranging from 80 to 89 dB at a distance of 50 feet, and noise produced by construction equipment would be reduced over distance at a rate of about 6 dB per doubling of distance.

Table 4. Construction Equipment Noise Levels
Equipment Maximum Noise Level (dBA at 50 feet)
Scrapers 89
Bulldozers 85
Heavy Trucks 88
Backhoe 80
Pneumatic Tools 85
Concrete Pump 82
Sensitive receptors (residences, schools, and the Arroyo Grande Hospital) are located immediately adjacent to the project corridor and areas of proposed disturbance. However, construction activities would generally be limited in nature (minor roadway improvements) and temporary. Construction activities for the roundabout alternative will be lengthier than those for the signalized intersection alternative, however the construction noise will comply with the City’s noise ordinance.

Construction of the proposed project will generate temporary ground borne vibrations and increase ambient noise levels due to the use of equipment identified in Table 3. However, construction-related activities occurring between 7:00 a.m. and 10 p.m. on Mondays through Fridays and 8:00 a.m. to 5:00

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p.m. on Saturdays and Sundays are exempt from the City’s noise standards. Construction noise would be short-term, intermittent, and partially overshadowed by local traffic noise. Therefore, this temporary increase would not exceed the City’s thresholds for noise.

Therefore, construction related noise impacts would be less than significant.

Operational Impacts. The project does not include any long-term stationary noise sources. The project will improve circulation for both vehicles and alternative modes of transportation. Alternative modes of transportation, such as bicycling and walking would be encouraged and increased, and because both do not produce noise levels comparable to vehicles long-term ambient noise levels will be reduced.

Therefore, operational related noise impacts would be less than significant. c): The Oceano County Airport is located approximately 1.5 miles west of the project corridor. The San Luis Obispo County’s Noise Element shows the project area to be unaffected by noise contours generated from the airport; ambient noise in the project vicinity is dominated by traffic along Halcyon Road. The project would not permanently place people or structures in the project area and people working in the project area would not be exposed to excessive noise levels above what currently exists from nearby traffic.

Therefore, impacts would be less than significant.

Mitigation Measures and Residual Impact
No significant noise impacts were identified; therefore, no mitigation measures are necessary.

XIV. Population and Housing
Environmental Setting
The City of Arroyo Grande’s population has grown from 3,291 in 1960 to 18,441, based on the 2020 Census.

At the time of the 2020 Census, there were 8,035 housing units in the City of Arroyo Grande, a 407-unit increase from 2010. The vast majority, 77%, are single-family units. The overall average household size in Arroyo Grande is 2.47, with owner-occupied units averaging 2.45 persons per household and renteroccupied units averaging 2.51 persons per household. This rate is relatively consistent with the 2010 city average of 2.41, and slightly less than California’s average rate of 2.87 persons per household.

There are no residences or residential uses within the project corridor; however, there are numerous residences adjacent to the project corridor both east and west of Halcyon Road.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Induce substantial unplanned population growth in
an area, either directly (for example, by proposing new homes and businesses) or indirectly (for example,
through extension of roads or other infrastructure)?

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Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
b) Displace substantial numbers of existing people or
housing, necessitating the construction of replacement
housing elsewhere?
Discussion
a): Residential areas within Arroyo Grande are largely built-out and less than 3% of residentially zoned parcels in the city remain vacant and suitable for development (City of Arroyo Grande 2001; City of Arroyo Grande 2011). There is currently some demand for additional residential development in the city, evidenced by requests for conversion of non-residential classifications to residential designations and increases in allowable densities. However, recent population growth has been limited.

The goal of the project is to relieve congestion and alleviate safety concerns associated with current conditions, and to improve existing traffic conditions within the local road network and along Halcyon Road. The project would not add capacity to existing roadways or provide access to previously inaccessible areas or remove other constraints to growth, and is, therefore, not expected to result in any significant direct, indirect or cumulative growth- related impacts in the project area.

Potential impacts would be less than significant.
b): The proposed project would not displace any residences or people and would not require the construction of replacement housing elsewhere.

Therefore, no impacts would occur.

Mitigation Measures and Residual Impacts
No significant impacts to population or housing resources were identified; therefore, no mitigation measures are necessary.

XV. Public Services
Environmental Setting
Fire Protection Services. The Five Cities Fire Authority was established on July 9, 2010, by a Joint Powers Agreement (JPA) between the cities of Arroyo Grande, Grover Beach, and the Oceano Community Services District to provide fire protection services of these communities. Oceano Community Services District will withdraw from the JPA on June 30, 2023. Five Cities Fire Authority also provides services to the Town of Halcyon and the Oceano Dunes State Vehicle Recreation Area. The Authority currently has three stations:
one in Arroyo Grande, one in Grover Beach, and one in Oceano. The Arroyo Grande station (Station 1) is located at 140 Traffic Way and serves as the headquarters for the Authority and serves the City of Arroyo Grande and the greater Arroyo Grande area. The California Division of Forestry (CAL FIRE) provides fire protection to surrounding communities and areas, including the County of San Luis Obispo, as well as back up support in Arroyo Grande. CAL FIRE has four substations in the area, at the following locations: 2391 Willow Road, Arroyo Grande; 450 Pioneer Road, Nipomo; 990 Bello Street, Pismo Beach; and, 2555 Shell Beach Road, Pismo Beach.

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Police Protection Services. The City of Arroyo Grande’s police station is adjacent to the project at 200 North Halcyon Road. In addition to the City police station, the San Luis Obispo County Sheriff substation is located at 1681 Front Street in Oceano and provides backup support within the City of Arroyo Grande.

The California Highway Patrol (CHP) office located in San Luis Obispo serves the south county including the City of Arroyo Grande. The response times of both the Sheriff Department and CHP can be delayed due to the large coverage area.

Emergency Medical Services. The San Luis Ambulance South County sub-station, located at 201 Brisco Road in Arroyo Grande, provides southern San Luis Obispo County residents paramedic services. There are currently two units stationed at the South County substation, which provide South County residents with emergency transportation to and from the Arroyo Grande Community Hospital located directly adjacent to the proposed project at 342 South Halcyon Road.

Schools. The project area is within the Lucia Mar Unified School District (LMUSD). LMUSD covers 550 square miles and serves the adjoining communities of Arroyo Grande, Grover Beach, Nipomo, Oceano, Pismo Beach, and Shell Beach. The district serves the City of Arroyo Grande with seven public schools, including three elementary schools, two middle schools, one high school, and one adult school. The San Luis Obispo County Office of Education (SLOCOE) oversees the Arroyo Grande Community School, a public alternative school, within the city limits. In addition to these public schools, there are seven private schools in the City of Arroyo Grande. One of them, Harloe Elementary School, is adjacent to the project area.

Parks. Ten City parks, a 26-acre sports complex, and a community garden are located within the City of Arroyo Grande. There are no public parks within the project corridor. Park facilities are further discussed in Section XV, Recreation, below.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact
No Impact
a) Result in significant environmental impacts from
construction associated with the provision of new or
physically altered governmental facilities, or the need for new or physically altered governmental facilities,
the construction of which could cause significant
environmental impacts, in order to maintain acceptable
service ratios, response times, or other performance
objectives for any of the public services:

Fire protection?
Police protection:

Schools?
Parks?
Other public facilities?

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Discussion
a): The proposed project is consistent with the City and the County’s General Plan and the zoning code. The proposed project would be required to comply with the relevant provisions of the California Building Code and Fire Code for project access for fire suppression. The project corridor proposed for the construction of street and facility upgrades serves as a primary route for emergency service calls. Both alternatives proposed for the intersection of Halcyon Road and Fair Oaks Avenue are designed to accommodate emergency vehicles. Regardless of the alternative chosen at that intersection, the project would result in improved circulation at the subject intersections and along Halcyon Road; therefore, no permanent adverse impacts to emergency facilities and services would occur as a result of the proposed project. Short-term construction related delays and impacts on emergency services is addressed in Section VIII. Hazards and Hazardous Materials, above. Mitigation has been identified to ensure short-term construction-related effects do not adversely affect emergency services within or near the project corridor (refer to HAZ/mm-5).

The proposed project would not induce population growth in the area and would not include a use that would significantly increase the demand for public services, which, in turn, would necessitate the construction of new facilities that would adversely affect the environment.

Therefore, impacts would be less than significant.

XVI. Recreation
Environmental Setting
The City of Arroyo Grande supports various community and neighborhood parks, as well as multiple designated bikeways and recreational paths. Recreational uses include a 26-acre sports complex that offers lighted tennis courts, little league and softball fields, and soccer and football fields; ten city parks that offer a variety of active and passive uses, including picnics, barbeques, playgrounds, and entertainment areas; an off-leash dog park; and a community garden. There are also hiking and walking trails along Arroyo Grande Creek and within the James Way Oak Habitat and Wildlife Preserve.

Halcyon Road is primarily utilized by vehicular traffic and there are no designated bike lanes in Context Zones 1, 2, and 3. There are no public parks or other recreational facilities in the immediate vicinity of the proposed project.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Increase the use of existing neighborhood and
regional parks or other recreational facilities, such that substantial physical deterioration of the facility would occur or be accelerated?
b) Include recreational facilities or require the
construction or expansion of recreational facilities that might have an adverse physical effect on the
environment?

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Discussion
a – b): The City of Arroyo Grande Bicycle and Trails Master Plan provides guidance and a vision to encourage bicycle and off-street pedestrian transportation within the city. The Complete Streets Plan builds on the Master Plan’s vision of a bicycle friendly community by developing Class II bicycle facilities along Halcyon Road, as proposed under the Master Plan. Implementation of the proposed project would further encourage safe, multimodal transportation and improve the recreational experience along the corridor. Both alternatives proposed at the Halcyon Road and Fair Oaks Avenue intersection include accommodation for bicyclists. The signalized intersection alternative proposes Class II Bike Lanes at each leg of the intersection, while the roundabout alternative would require motorists to yield to bicyclists.

Improvements would occur primarily within the existing City right-of-way, adjacent to existing transportation facilities and urbanized areas and would not substantially affect recreational resources.

The proposed project would not create a new use that would generate population growth or increase demand for existing recreational facilities. Therefore, no deterioration of existing facilities would occur as a result of the proposed project. The proposed project would not include recreational facilities or require the expansion of existing recreational facilities.

Therefore, potential impacts would be less than significant.

Mitigation Measures and Residual Impacts
No significant impacts to recreational resources were identified; therefore, no mitigation measures are required.

XVII. Transportation/Traffic
Environmental Setting
Regional access in the project vicinity is provided by US 101, a major freeway of statewide importance that traverses north-south through the Central Coast. US 101 serves as the main travel route that connects San Luis Obispo County with San Francisco to the north and Los Angeles to the south. Halcyon Road is a two- to four-lane roadway that links US 101 and SR 1 and serves a variety of travelers including those making local, regional, and interregional trips. It also provides a connection from US 101 to Oceano, the Nipomo Mesa, the community of Halcyon and the Arroyo Grande Hospital.

Consistent with the City, County, and Caltrans policies, roadway Level of Service (LOS) C is generally considered the threshold for acceptable operations at intersections and roadway segments along Halcyon Road. Where deficiencies in LOS exist, the City requires that they be mitigated to a LOS D at a minimum.

An Existing Conditions Analysis Memorandum (GHD 2020) was prepared to evaluate traffic volumes, existing capacity and deficiencies, LOS, and collision history within the project corridor. Currently, all intersections within the corridor currently operate at acceptable LOS (either B or C Existing bicycle conditions for roadway segments were also analyzed using a standardized Bicycle Level of Traffic Stress (LTS) Analysis and determined that the existing conditions of Halcyon Road did not provide adequate comfort for bicyclists.

While LOS has conventionally been the most commonly used metric for measuring transportation performance, recent revisions to the CEQA Guidelines has identified Vehicle Miles Traveled (VMT) as the most appropriate metric to evaluate a project’s transportation impacts. The change from LOS to VMT was mandated by Senate Bill 743 in 2013, and since July 1, 2020, lead agencies are required to update their

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transportation impact analysis from LOS to VMT. VMT is calculated by multiplying the number of vehicle trips that a proposed development will generate by the estimated number of miles driven per trip.

Projects that are expected to induce significant increases in VMT will be responsible for mitigating their impacts through measures such as car-sharing services, unbundled parking, improved transit, and enhanced pedestrian and bicycle infrastructure. An update to the City’s General Plan Circulation Element in 2021 included the establishment of policies and thresholds for evaluating VMT. The City’s Policy’s, consistent with OPR’s Technical Advisory on Evaluating Transportation Impacts in CEQA, establishes a goal to reduce VMT 15% below baseline for residential and office projects, and have no net increase in total regional VMT for retail, industrial, and other projects. The City’s baseline VMT and significance thresholds are as follows:
• Baseline Residential VMT per capita: 20.2
o 15% reduction in baseline VMT per capita: 17.2
• Baseline Office VMT per employee: 14.0
o 15% reduction in Office VMT per employee: 11.9
• Retail, Industrial, & Other: No Net increase in total regional VMT • Mixed-Use: Evaluate components independently considering internal capture and compare to the corresponding threshold. Alternatively, analyze only the project’s dominant use. • • Redevelopment: If a project leads to a net overall increase in VMT, then the thresholds above apply.
• A general plan, area plan, or community plan may have a significant impact on transportation if proposed new residential, office, or retail land uses would in aggregate exceed the respective thresholds recommended above.

Public transportation in Arroyo Grande is provided by San Luis Obispo Regional Transit Authority (SLORTA). While SLORTA South County Transit provides regional service throughout the South County, there are no direct services along the Halcyon Road corridor. The Halcyon Park and Ride Lot is located on the north side of El Camino Real just east of Halcyon Road, providing 85 parking spaces and eight bike lockers. There are approximately 161 existing on-street parking spaces along Halcyon Road through the project corridor, with the majority (approximately 62) in Context Zone 1.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Conflict with a program, plan, ordinance or policy
addressing the circulation system, including transit,
roadway, bicycle and pedestrian facilities?
b) Conflict or be inconsistent with CEQA Guidelines
section 15064.3, subdivision (b)?

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Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
c) Substantially increase hazards due to a geometric
design feature (e.g., sharp curves or dangerous
intersections) or incompatible uses (e.g., farm
equipment)?
d) Result in inadequate emergency access?
Discussion
a) - b): Existing vehicular traffic conditions operate at acceptable service levels along most of the Halcyon Road corridor; however, pedestrian and bicycle conditions are inadequate at several locations and lack connectivity between residential, retail, recreational, and employment areas. In the year 2035, which is predicted to be the year the city reaches build out under the General Plan, projected Average Daily Trip (ADT) volumes on Halcyon Road are estimated at 17,300 vehicles per day. The Existing Conditions Background Report for the Circulation Element established screening criteria for transportation projects such as the Halcyon Complete Streets Plan. The report concludes that transportation projects such as, road diets, roundabouts, roadway rehabilitation and maintenance, safety improvements that do not substantially increase auto capacity, installation or reconfiguration of lanes not for through traffic, timing of traffic signals, removal of on-street parking, addition or enhancement of pedestrian, bicycle and transit facilities and services are expected to reduce or have no impact on VMT.

Short-term construction activities would likely cause increased congestion in the vicinity of construction activities. However, these impacts would be short-term and minimized to the extent feasible through adherence to City measures contained in the General Plan. Implementation of the Complete Streets Plan would likely reduce VMT throughout the Halcyon Road corridor by encouraging alternative forms of transportation over the use of passenger vehicles through the creation of Class II bike lanes, and bike boxes to increase the comfort levels for bicyclists. Infill of gaps in sidewalk, additions of high visibility markings and the installation of rapid flashing beacons at pedestrian crossings will make the corridor more accessible and attractive for pedestrians.

Consistent with VMT reduction strategies, the proposed project would provide long-term improvements to circulation and connectivity, bicycle and pedestrian facilities, and multimodal transportation.

Therefore, the project would result in a beneficial impact on transportation, and no long-term adverse effects to Traffic and Transportation would occur.

Impacts would be less than significant.
c): The project area is in an urbanized area that includes residential, commercial, and public facilities, all of which are compatible with the Plan. Halcyon Road is a relatively straight street devoid of sharp curves. The roundabout alternative would require new turning movements through the intersection, but the roundabout would meet all applicable design standards for passenger and commercial vehicles.

Therefore, no impact would occur.
d): Construction of the proposed project would require temporary street closures along Halcyon Road; however, detours would be provided and access to adjacent land uses would be maintained

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throughout construction activities. Temporary lane closures on Halcyon Road and cross streets, and associated detours could result in temporary delays in emergency response to the area by the Arroyo Grande Police Department, Arroyo Grande Community Hospital, San Luis Ambulance, and other adjacent businesses and uses; however, emergency access would be maintained at all adjacent properties and longterm congestion relief would improve emergency access throughout the City for police, fire, and emergency protection services. Mitigation has been identified to ensure short-term construction-related effects do not adversely affect emergency services within or near the project corridor (refer to HAZ/mm5).

Over the long-term, the project would improve the local transportation system within the Halcyon Road corridor, which would likely improve emergency response times once the project is complete, due to reduced congestion and more efficient traffic flow along Halcyon Road. Implementation of mitigation measures would minimize short-term construction delays in emergency response and following construction, the design of the complete streets improvements would accommodate the access requirements of emergency vehicles. Both alternatives for the Halcyon Road and Fair Oaks Avenue intersection can accommodate all anticipated users of the Halcyon corridor.

Potential impacts would be less than significant with mitigation.

Mitigation Measures and Residual Impacts
To minimize potentially significant impacts to traffic and transportation facilities, the following measure would be implemented:

Implement HAZ/mm-5
With the incorporation of this measure, residual impacts associated with traffic and transportation would be less than significant.

XVIII. Tribal Cultural Resources
Environmental Setting
As discussed in Section V. Cultural Resources, the city is located within lands traditionally occupied by the Chumash. Sensitive archaeological resources are known to occur in the vicinity of the project area.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Cause a substantial adverse change in the
significance of a tribal cultural resource, defined in
Public Resources Code section 21074 as either a site,
feature, place, cultural landscape that is geographically defined in terms of the size and scope of the landscape, sacred place, or object with cultural value to a California Native American tribe, and that is:

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Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
i) Listed or eligible for listing in the California
Register of Historical Resources, or in a local
register of historical resources as defined in Public
Resources Code section 5020.1(k), or
ii) A resource determined by the lead agency, in its
discretion and supported by substantial evidence,
to be significant pursuant to criteria set forth in
subdivision (c) of Public Resources Code Section
5024.1. In applying the criteria set forth in
subdivision (c) of Public Resource Code Section
5024.1, the lead agency shall consider the
significance of the resource to a California Native
American tribe.

Discussion
a-i), a-ii) Given the abundance of prehistoric archaeological resources known to be located in the vicinity of the project area, the project area is considered sensitive for the presence of buried (i.e., obscured) resources. The City has sent notices to affiliated tribal representatives providing an opportunity for consultation regarding tribal cultural resources consistent with Assembly Bill (AB) 52. The City received two responses from interested tribes. Discussions between staff and the tribal representatives determined that mitigation measures CUL/mm-1 through CUL/mm-4 are sufficient to mitigate any potential impacts. Regardless, any significant prehistoric archaeological resources referenced in Section V. Cultural Resources are considered potentially significant tribal cultural resources. Standard mitigation has been proposed to ensure impacts to any unknown resources that may be encountered during project development would be avoided and/or minimized.

Therefore, potential impacts associated with tribal cultural resources would be less than significant with mitigation.

Mitigation Measures and Residual Impact
To minimize potential significant impacts related to tribal cultural resources, the following measures would be implemented.

Implement Mitigation Measures CUL/mm-1 through CUL/mm-4.

With the incorporation of this measure, residual impacts related to tribal cultural resources would be less than significant.

XIX. Utilities and Service Systems
Environmental Setting
The project corridor is located entirely within the City of Arroyo Grande. Utilities will be provided by both the City and other regional entities. The exact location of existing utility components, infrastructure or

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systems in the project area, including water, sewer, natural gas, electric power, and telecommunications has not yet been determined. However, any existing utility component or facility that would be impacted by the project would be relocated or replaced in kind.

Water and wastewater services within the city are provided by the City Public Works Department. The City has a franchise agreement with South County Sanitary Service for collection, diversion, and disposal of solid waste and is served by the Cold Canyon Landfill located approximately 4 miles north of Arroyo Grande in unincorporated San Luis Obispo County.

Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Require or result in the construction of new or
expanded water, wastewater treatment or storm water
drainage, electric power, natural gas, or
telecommunications facilities, the construction or
relocation of which could cause significant
environmental effects?
b) Have sufficient water supplies available to serve the project and reasonably foreseeable future
development during normal, dry and multiple dry
years?
c) Result in a determination, by the wastewater
treatment provider that serves or may serve the
project, that it has adequate capacity to service the
project’s anticipated demand, in addition to the
provider’s existing commitments?
d) Generate solid waste in excess of state or local
standards, or in excess of the capacity of local
infrastructure, or otherwise impair the attainment of
solid waste reduction goals?
e) Comply with federal, state, and local management
and reduction statutes and regulations as they relate to solid waste?
Discussion
a): The project does not propose use or development of any on-site wastewater disposal systems or connection to any community wastewater system. The project would not include any use that would require wastewater discharges, except for short-term construction activities that would be serviced by on-site portable restroom and hand-washing facilities and/or existing facilities within the project area, as necessary.

The project would not result in the need for new or expanded stormwater drainage or water quality control facilities. The new infrastructure could alter surface slopes and drainage patterns within the project area. Proposed project improvements would be designed to avoid impacts to adjacent areas and

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ensure that stormwater continues to flow along existing contours that drain naturally into the existing stormwater drainage system. Drainage would be designed in conformance with applicable City regulations, post-construction stormwater requirements (as applicable), and any other regulatory requirements. Through compliance with existing requirements, potential impacts to stormwater infrastructure and facilities would be less than significant.

The project does not propose substantial changes in long-term use of the project area; therefore, no permanent and substantially changed effects associated with discharge into or contamination of surface waters would result above that which currently exists.

Therefore, potential impacts would be less than significant. b): The project does not propose any new use that would create an increased demand for water.

Short-term construction activities would be serviced by the City’s municipal water supply and portable wastewater facilities and/or existing facilities within the project area.

Therefore, potential impacts would be less than significant. c): The project does not propose new uses that require wastewater treatment and nor would it require the construction or expansion of these facilities.

Therefore, no impact would occur.
d)-e): Upon completion, operation and use of the project would not generate any solid waste.

Construction activities would result in the generation of solid waste materials, including cut volumes and demolition of existing infrastructure. The proposed project will be served by the Cold Canyon Landfill, which has adequate permitted capacity to serve the project.

Therefore, the impacts would be less than significant.

Mitigation Measures and Residual Impacts
No significant impacts to utilities and service systems were identified; therefore, no mitigation measures are required.

XX. Wildfire
Environmental Setting
Natural hazards such as wildfires are discussed in the City of Arroyo Grande’s General Plan Safety Element.

The City has developed policies and allocates funding for a variety of programs for preventative maintenance and to provide emergency services to the public when natural disasters occur. Funding for the Five Cities Fire Authority is included to ensure the readiness of response teams and the smooth implementation of emergency response plans. The City also implements a fuels maintenance program to further minimize the risk of wildland fires.

The majority of the city is located in a generally flat valley that has been developed with urban and agricultural uses. The northern and eastern portions of the city, however, are hilly and contain parcels that are within or adjacent to grassland and forested areas. The most apparent fire hazards are generally associated with the urban/wildland interface areas of the city. Fire protection for the structures located within these urban/wildland interface areas may be constrained by heavy fuel loads, steep slopes, limited

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access, and possibly limited water supplies. Fire suppression and prevention services within Arroyo Grande are provided by the Five Cities Fire Authority from Station One, located approximately one mile east on 140 Traffic Way. Additional backup support is provided by CAL FIRE.

Halcyon Road is located within the urbanized portion of the city and is almost completely surrounded by existing development. The Plan and the Halcyon Road corridor are entirely within the Local Responsibility Area and are not on lands classified as a very high fire hazard severity zone.

If located in or near state responsibility areas or lands classified as very high fire hazard severity zones, would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Substantially impair an adopted emergency response
plan or emergency evacuation plan?
b) Due to slope, prevailing winds, and other factors,
exacerbate risks, and thereby expose project occupants
to, pollutant concentrations from a wildfire or the
uncontrolled spread of wildfire?
c) Require the installation or maintenance of associated infrastructure (such as roads, fuel breaks, emergency
water sources, power lines or other utilities) that may exacerbate fire risk or that may result in temporary or ongoing impacts to the environment?
d) Expose people or structures to significant risks,
including downslope or downstream flooding or
landslides, as a result of runoff, post-fire slope
instability, or drainage changes?
Discussion
a): Construction-related congestion and loss of access could temporarily affect emergency routes and access through areas of construction; however, emergency access would be maintained at all adjacent properties and long-term congestion relief would improve emergency access throughout the project corridor. As discussed in Section IX. Hazards and Hazardous Materials and XVII. Transportation/Traffic, mitigation has been identified to ensure short-term construction-related effects do not adversely affect emergency services within or near the project corridor (refer to HAZ/mm-5). As a result, implementation of the Complete Streets Plan would not substantially impair an adopted emergency response plan or emergency evacuation plan.

Therefore, impacts would be less than significant with mitigation. b): The project would be developed in a part of the valley that is generally flat and is mostly surrounded by existing development. The project primarily consists of street improvements to increase safety and mobility and does not propose any design elements that would exacerbate risks and expose project occupants to pollutant concentrations from a wildfire or the uncontrolled spread of wildfire.

Therefore, no impacts would occur.

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c): The Complete Streets Plan proposes road and infrastructure improvements for the purpose of enhancing safety and mobility within the mostly developed Halcyon Road corridor. All improvements would be consistent with applicable engineering and building standards, and utility relocation, if any, would be done in coordination with the respective service provider. There are no additional improvements to infrastructure or maintenance, other than what is currently described and anticipated under the Complete Streets Plan, that would exacerbate fire risk or may result in temporary or ongoing impacts to the environment.

Therefore, no impacts would occur.
d): The Complete Street Plan focuses on street and infrastructure improvements within a relatively flat valley floor surrounded by urban development. The project is not located near a hillslope or in an area subject to downstream flooding or landslides. As such, the project does not include any design elements that would expose people or structures to significant risks, including downslope or downstream flooding or landslides, as a result of runoff, post-fire slope instability, or drainage changes.

Therefore, no impacts would occur.

Mitigation Measures and Residual Impact
To minimize potentially significant impacts from wildfire and to an emergency response plan, the following measure would be implemented:

Implement HAZ/mm-5.

With the incorporation of this measure, residual impacts associated with wildfire would be less than significant.

5. Mandatory Findings of Significance
Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
a) Substantially degrade the quality of the environment, substantially reduce the habitat of a fish or wildlife
species; cause a fish or wildlife population to drop
below self-sustaining levels; threaten to eliminate a
plant or animal community; substantially reduce the
number or restrict the range of an endangered, rare or
threatened species; or eliminate examples of the major
periods of California history or prehistory?
b) Have the potential to achieve short-term
environmental goals to the disadvantage of long-term
environmental goals?

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Would the project:

Potentially
Significant
Impact
Less Than
Significant
with
Mitigation
Less Than
Significant
Impact No Impact
c) Have possible environmental effects that are
individually limited but cumulatively considerable?
“Cumulatively considerable” means that the
incremental effects of an individual project are
significant when viewed in connection with the effects
of past projects, the effects of other current projects, and the effects of possible future projects.
d) Cause substantial adverse effects on human beings,
either directly or indirectly?
Discussion
a): The proposed project does not have the potential to substantially degrade the quality of the environment. The project has no potential to substantially reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels or threaten to eliminate a plant or animal community, or substantially reduce the number or restrict the range of a rare or endangered plant or animal. The proposed project would not contribute significantly to greenhouse gas emissions or significantly increase energy consumption and would not eliminate important examples of the major periods of California history or prehistory with implementation of identified mitigation. Therefore, impacts would be less than significant with mitigation. b): The proposed project is designed to achieve the goal of the City to improve operations within the local roadway system. The proposed project does not have the potential to achieve short-term goals to the disadvantage of long-term environmental goals. Therefore, the impacts would be less than significant. c): Because the project does not propose a new or significantly different use than the existing use, the project’s impacts would be limited in extent and duration and could be generally minimized through application of standard control measures. The proposed project does not have impacts that would be individually limited but cumulatively considerable with implementation of identified mitigation. There are no proposed or planned projects in the area that would create similar impacts, which when considered together with the project-related impacts would be considerable, or which compound or increase other environmental impacts. Therefore, impacts would be less than significant with mitigation. d): The proposed project would not create environmental effects that would cause substantial adverse effects on human beings, either directly or indirectly. The project would improve existing infrastructure providing beneficial impacts on existing traffic and circulation systems. Adverse project effects would generally be limited to the construction phase of the project and minimized through standard mitigation measures. Therefore, impacts would be less than significant with mitigation.

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6. Summary of Mitigation Measures
AQ/mm-1 Prior to issuance of construction permits, the following measures shall be incorporated into the construction phase of the project and shown on all applicable plans:

Construction Equipment
a. Maintain all construction equipment in proper tune according to manufacturer’s specifications;
b. Fuel all off-road and portable diesel-powered equipment with CARB-certified motor vehicle diesel fuel (non-taxed version suitable for use off-road); c. Use diesel construction equipment meetings CARB’s Tier 2 certified engines or cleaner off-road heavy-duty diesel engines, and comply with State Off-Road Regulation; d. Use on-road heavy-duty trucks that meet the CARB’s 2007 or cleaner certification standard for on-road heavy-duty diesel engines, and comply with the State On-Road Regulation;
e. Construction or trucking companies with fleets that that do not have engines in their fleet that meet the engine standards identified in the above two measures (e.g., captive or NOx exempt area fleets) may be eligible by proving alternative compliance; f. All on and off-road diesel equipment shall not idle for more than 5 minutes. Signs shall be posted in the designated queuing areas and or job sites to remind drivers and operators of the 5-minute idling limit;
g. Diesel idling within 1,000 feet of sensitive receptors is not permitted; h. Staging and queuing areas shall not be located within 1,000 feet of sensitive receptors; i. Electrify equipment when feasible;
j. Substitute gasoline-powered in place of diesel-powered equipment, where feasible; and, k. Use alternatively fueled construction equipment on-site where feasible, such as compressed natural gas (CNG), liquefied natural gas (LNG), propane, or biodiesel.

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contractor or builder should consider use of a dust suppressant that is effective for the specific site conditions to reduce the amount of water used for dust control; c. All dirt stockpile areas should be sprayed daily and covered with tarps or other dust barriers as needed;
d. All trucks hauling dirt, sand, soil, or other loose materials are to be covered or should maintain at least two feet of freeboard (minimum vertical distance between top of load and top of trailer) in accordance with California Vehicle Code §23114; e. “Track-Out” is defined as sand or soil that adheres to and/or agglomerates on the exterior surfaces of motor vehicles and/or equipment (including tires) that may then fall onto any highway or street as described in CVC Section 23113 and California Water Code 13304.

To prevent ‘track out’, designate access points and require all employees, subcontractors, and others to use them. Install and operate a ‘track-out prevention device’ where vehicles enter and exit unpaved roads onto paved streets. The ‘track-out prevention device’ can be any device or combination of devices that are effective at preventing track out, located at the point of intersection of an unpaved area and a paved road. Rumble strips or steel plate devices need periodic cleaning to be effective. If paved roadways accumulate tracked out soils, the track-out prevention device may need to be modified; f. All fugitive dust mitigation measures shall be shown on grading and building plans; g. The contractor or builder shall designate a person or persons whose responsibility is to ensure any fugitive dust emissions do not result in a nuisance and to enhance the implementation of the mitigation measures as necessary to minimize dust complaints and reduce visible emissions below the APCD’s limit of 20% opacity for greater than 3 minutes in any 60-minute period. Their duties shall include holidays and weekend periods when work may not be in progress (for example, wind-blown dust could be generated on an open dirt lot). The name and telephone number of such persons shall be provided to the APCD Compliance Division prior to the start of any grading, earthwork or demolition (Contact the Compliance Division at 805- 781-5912).

BIO/mm-1: During construction, the project contractor shall implement the following measures, as appropriate to avoid the spread of invasive species:

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a. To avoid the spread of invasive species, the contractor shall stockpile topsoil and redeposit the stockpiled soil within the excavated trenches after construction of the new project component is complete, or transport topsoil to a certified landfill for disposal. b. During construction, the project contractor will make all reasonable efforts to limit the use of imported soils for fill. Soils currently existing on-site should be used for fill material. If the use of imported fill material is necessary, the imported material must be obtained from a source that is known to be free of invasive plant species; or the material must consist of purchased clean material such as crushed aggregate, sorted rock, or similar.
c. Any landscape and/or restoration planting plans, if proposed, must emphasize the use of native species expected to occur in the area. Project plans must avoid the use of plant species that the California Invasive Plant Council (Cal-IPC), California Exotic Pest Plant Council (Cal-EPPC), CDFW, or other resource organizations considers to be invasive or potentially invasive. Prior to issuance of grading permits, all project landscape and restoration plans shall be verified to ensure that the plans do not include the use of any species considered invasive by the Cal-IPC, Cal-EPPC, or CDFW. d. Use of rodenticides and herbicides shall be prohibited.

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i. Provide specific, detailed protocols for what to do in the event of the discovery of human remains.

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b. Identification of a person or persons responsible for monitoring implementation of the plan and spill response;
c. Identification of Best Management Practices (BMPs) to be implemented to ensure minimal impacts to the environment occur, including but not limited to the use of containment devices for hazardous materials, training of construction staff regarding safety practices to reduce the chance for spills or accidents, and use of non-toxic substances where feasible;
d. A description of proper procedures for containing, diverting, isolating, and cleaning up spills, hazardous substances and/or soils, in a manner that minimizes impacts on surface and groundwater quality and sensitive land uses and resources; e. A description of the actions required if a spill occurs, including which authorities to contact and proper clean-up procedures; and
f. A requirement that all construction personnel participate in an awareness training program conducted by qualified personnel approved by the City Public Works Director.

The training must include a description of the Hazardous Materials Spill Prevention, Control and Countermeasure Plan, the plan’s requirements for spill prevention, information regarding the importance of preventing spills, the appropriate measures to take should a spill occur, and identification of the location of all clean-up materials and equipment.

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HAZ/mm-5 Prior to the initiation of construction activities, the City shall prepare a Construction Timing, Access, and Circulation Plan, which shall include the following measures.

This plan shall be approved by the City Public Works Director prior to the start of construction and made available to emergency responders to review and comment on prior to the onset of construction activities.
a. Methods for ensuring permanent access to the commercial/retail centers throughout the project corridor is preserved and/or improved to the maximum extent feasible through implementation of the proposed project.
b. A signage plan and other methods, if feasible, for increasing the visibility of business blocked by construction activities and educating travelers that businesses adjacent to the project corridor are to remain open during construction; c. Clearly marked detour routes for alternate access to any businesses that are made inaccessible or difficult to access due to construction activities; d. Hours of haulage (8:00 a.m. to 5:00 p.m.);
e. Designation of truck routes that avoid sensitive land uses (Harloe Elementary School, Arroyo Grande Community Hospital) and residential areas to the extent possible; f. Methods of traffic control on adjacent streets within the project area; g. Adequate safety signage regarding traffic control;
h. Designated construction staging areas for construction personnel vehicles, supplies, and equipment;
i. A telephone number for local residents to call if there are issues or complaints; and j. Measures to resolve potential conflicts between construction activities and adjacent businesses.

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Arroyo Grande City CouncilJuly 25, 2023

Arroyo Grande City Council
July 25, 2023