Ukiah City Council
June 21, 2023

Poorly graded SAND with CLAY (SP-SC); medium
dense; brown; dry to moist; few fine GRAVEL; mostly
coarse to fine SAND; few nonplastic fines.

Poorly graded SAND with GRAVEL (SP); medium
dense; brown, black, red; dry.

Poorly graded GRAVEL with CLAY and SAND
(GP-GC); dense; brown; wet; mostly coarse to fine,
subangular to subrounded GRAVEL; some coarse to
fine SAND; few nonplastic fines.

Medium dense; about 67% mostly coarse to fine
GRAVEL; about 26% some fine SAND; few low
plasticity fines.

Dense.

Lean CLAY (CL); very stiff; gray; moist; trace fine
GRAVEL; mostly medium SAND.

Bottom of borehole at 21.5 ft bgs
Ground water
encountered.

Logger noted same
material from 10-ft. sample
falling out of sampler.
5 5
13 14
17 12
12 17
19 5
5 13
50/1
6 6
6 18
29 36
18 REF
12 2.50

6.9 7.3

7.4 118
135.1
LOCATION: Ukiah, CA
DRILLING CONTRACTOR: Geo-Ex Subsurface
HAMMER TYPE: Auto: 140 lb; 30 in Drop
PROJECT NO: 19-503.1
PROJECT: Ukiah RW Pipeline-Phase 4
FIELD
LOGGED BY: HFW
DRILLING METHOD: Solid-Stem Auger
DRILL RIG: CME 75 Track
SAMPLER TYPE & SIZE: CAL (2.4" ID)
BOREHOLE DIAMETER: 4 in
DEPTH OF BORING: 21.5 (ft) BACKFILL METHOD: Free Fall
BEGIN DATE: 3/21/2019
COMPLETION DATE: 3/21/2019
SURFACE ELEVATION: 646.1 (ft)*
SURFACE CONDITION: Grass
HAMMER EFFICIENCY: 70 (%)
LOG OF BORING A-19-023

LABORATORY
CLIENT: Carollo Engineers WATER DEPTH: 9(ft.)
READING TAKEN: 3/21/19
COUNTY: Mendocino SAMPLE

CASING DEPTH

DESCRIPTION

PLASTICLIMIT

REMARKS
ELEV (ft)DEPTH (ft)
SAMPLE NOBLOWSPER 6 INCHBLOWSPER FOOTGRAPHIC LOGRECOVERY(%)DRILL METHOD 645
640
635
630
625
620
615
610
POCKETPEN. (TSF)RQD (%)LIQUIDLIMITMOISTURE(%)D. DENSITY(PCF)% PASSING200 SIEVE SHEET 1 of 1
Crawford & Associates, Inc.
1100 Corporate Way, Suite 230
Sacramento, CA 95831
(916) 455-4225
PROJECT NUMBER: 19-503.1
PROJECT: Ukiah RW Pipeline-Phase 4
BORING: A-19-023
ENTRY BY: AC
CHECKED BY: KKL
1 2
3 4
5 6
67 67
100
100
0 11
0 5
10 15
20 25
30 35
12 7
DRAFT Appendix C-75 8660F10 April 2023

ASPHALT.

Aggregate Base (AB).

Lean CLAY with SAND (CL); hard; dark brown; moist;
trace GRAVEL; few medium to fine SAND; mostly
medium plasticity, medium toughness fines.

SANDY lean CLAY (CL); hard; dark brown; moist;
about 10% fine GRAVEL; about 35% coarse to fine
SAND; mostly low plasticity fines.

Poorly graded SAND with CLAY and GRAVEL
(SP-SC); loose; brown; moist; little fine GRAVEL;
mostly medium SAND; few low plasticity fines.

Lean CLAY (CL); very stiff; tan; moist; trace fine
GRAVEL; few fine SAND; mostly medium plasticity,
medium toughness fines.

Poorly graded GRAVEL with SAND (GP); very dense;
brown; moist; mostly fine GRAVEL; some medium
SAND; few low plasticity fines.
17 AC = 4"
AB = 3"
Sample retrieved wet.

Switched to side discharge
mud rotary. No ground
water measured.

Direct Shear
Friction Angle (phi) = 31
degrees
Cohesion (c) = 500 psf
Drill Chatter
5 20
19 2
3 3
6 11
16 33
39 41
39 50/5
31 44
50/5
14 22
22 39
6 27
80 50/5
94/11
44 2.50
28 11.4

22.2 124.5
108.7
LOCATION: Ukiah, CA
DRILLING CONTRACTOR: Geo-Ex Subsurface
HAMMER TYPE: Auto: 140 lb; 30 in Drop
PROJECT NO: 19-503.1
PROJECT: Ukiah RW Pipeline-Phase 4
FIELD
LOGGED BY: AC
DRILLING METHOD: Solid-Stem Auger & Rotary
DRILL RIG: CME 55 Truck
SAMPLER TYPE & SIZE: CAL (2.4" ID); SPT (1.4" ID)
BOREHOLE DIAMETER: 4 in
DEPTH OF BORING: 46.5 (ft) BACKFILL METHOD: Tremie Grout LOG OF BORING R-19-024

LABORATORY
CLIENT: Carollo Engineers
BEGIN DATE: 3/22/2019
COMPLETION DATE: 3/22/2019
SURFACE ELEVATION: 613.2 (ft)*
SURFACE CONDITION: Asphalt
WATER DEPTH: Not Established
READING TAKEN: N/A
HAMMER EFFICIENCY: 77 (%)
COUNTY: Mendocino SAMPLE

CASING DEPTH

DESCRIPTION

PLASTICLIMIT

REMARKS
ELEV (ft)DEPTH (ft)
SAMPLE NOBLOWSPER 6 INCHBLOWSPER FOOTGRAPHIC LOGRECOVERY(%)DRILL METHOD 610
605
600
595
590
585
580
POCKETPEN. (TSF)RQD (%)LIQUIDLIMITMOISTURE(%)D. DENSITY(PCF)% PASSING200 SIEVE SHEET 1 of 2
Crawford & Associates, Inc.
1100 Corporate Way, Suite 230
Sacramento, CA 95831
(916) 455-4225
PROJECT NUMBER: 19-503.1
PROJECT: Ukiah RW Pipeline-Phase 4
BORING: R-19-024
ENTRY BY: AC
CHECKED BY: KKL
1 2
3 4
5 6
7 72
100
44 72
64 76
33 0
5 10
15 20
25 30
35 55
DRAFT Appendix C-76 8660F10 April 2023

Poorly graded GRAVEL with SAND (GP) (continued). SANDY lean CLAY (CL); very stiff; tan; moist; little fine SAND; mostly low to medium plasticity, low
toughness fines.

Stiff; trace fine GRAVEL; few fine SAND.

Bottom of borehole at 46.5 ft bgs
Groundwater not established due to drilling method.

Driller Note: Material
became softer.

Something blocked
sampler. Chase with SPT
3 4
10 10
9 13
3 6
9 14
22 15

2.50 1.00

FIELD LABORATORY

SAMPLECASING DEPTH

DESCRIPTION

PLASTICLIMIT

REMARKS
ELEV (ft)DEPTH (ft)
SAMPLE NOBLOWSPER 6 INCHBLOWSPER FOOTGRAPHIC LOGRECOVERY(%)DRILL METHOD 575
570
565
560
555
550
545
540
535
POCKETPEN. (TSF)RQD (%)LIQUIDLIMITMOISTURE(%)D. DENSITY(PCF)% PASSING200 SIEVE SHEET 2 of 2
Crawford & Associates, Inc.
1100 Corporate Way, Suite 230
Sacramento, CA 95831
(916) 455-4225
PROJECT NUMBER: 19-503.1
PROJECT: Ukiah RW Pipeline-Phase 4
BORING: R-19-024
ENTRY BY: AC
CHECKED BY: KKL
8 9
10 61
67 83
40 45
50 55
60 65
70 75
80 DRAFT Appendix C-77 8660F10 April 2023

FIELD

ELEVATION
(ft)
799
798
797
796
795
794
793
792
791
790
789
788
787
786
785
784
783
782
781
780
779
778
777
776
775
774
773
772
771
DEPTH (ft)
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
SAMPLE

SAMPLE NO
Bulk
1 2
3 4
5 6
7 BLOWS
PER 6 IN.
2 10
12 11
9 9
13 10
19 17
15 14
18 27
17 18
20 21
26 24
25 BLOWS

PER FOOT
27 37
37 36
40 42
52 POCKET
PEN. (TSF)

GRAPHIC LOG

DESCRIPTION
CLAYEY SAND with GRAVEL (SC); brown;
moist; mostly medium to fine SAND; little
fine, subrounded GRAVEL; little fines.
medium dense
Poorly-graded SAND with CLAY and
GRAVEL (SP-SC); dense; brown; dry to
moist; mostly medium to fine SAND; little
coarse to fine GRAVEL; few fines.

CLAYEY GRAVEL with SAND (GC); dense;
orangish brown; moist; mostly GRAVEL;
some medium to fine SAND; little fines.

CLAYEY SAND (SC); dense; purplish
brown; moist; mostly medium to fine SAND;
few subangular coarse GRAVEL; little fines.
brown
orangish brown; few coarse to fine GRAVEL
very dense; trace fine GRAVEL
RECOVERY(%)
100
83 83
83 94
72 83
78 RQD (%)

LABORATORY

PLASTIC
LIMIT
17 LIQUID
LIMIT
32 MOISTURE
(%)

8.0 7.3

11.1 D. DENSITY
(PCF)
121.0
115.6
121.2
% PASSING
200 SIEVE
25 34

DRILL METHOD

CASING DEPTH

REMARKS
Grinding observed from

1.5-2.5'
Corrosion
Soil pH: 4.52
Min. Resistivity: 4820
ohm-cm
Chloride: 4.3 ppm
Sulfate: 1.0 ppm
Driller notes easy drilling
from 2.5-20'
LOG OF BORING A-20-001
PROJECT NO: 19-503.1 BEGIN DATE: 11/30/2020 DRILLING CONTRACTOR: GeoEx Subsurface Exploration PROJECT: Ukiah Recycled Water Pipeline-Phase 4 COMPLETION DATE: 11/30/2020 DRILLING METHOD: SS Augers (4"), Rotary (4") LOCATION: Ukiah, CA SURFACE ELEVATION: 799.50 (ft) DRILL RIG: CME 75 (Track Mounted) COUNTY: Mendocino SURFACE CONDITION: Grass/Soil HAMMER TYPE: Automatic; 140 lbs; 30 in. drop CLIENT: Carollo Engineers, Inc. WATER DEPTH: Not Encountered SAMPLER TYPE & SIZE: Bulk, MCAL (2.4" ID), SPT (1.4" ID) LOGGED BY: KBH READING TAKEN: N/A BOREHOLE DIAMETER: 4.0 in.

DEPTH OF BORING: 60.00 (ft) HAMMER EFFICIENCY: 89.1 (%) BACKFILL METHOD: Neat Cement Grout Crawford & Associates, Inc.
1100 Corporate Way, Suite 230
Sacramento, CA 95831
(916) 455-4225
PROJECT NO: 19-503.1
PROJECT: Ukiah Recycled Water Pipeline-Phase 4
BORING: A-20-001
ENTRY BY: KBH
CHECKED BY: HFW SHEET # 1 of 2
DRAFT Appendix C-78 8660F10 April 2023

FIELD

ELEVATION
(ft)
770
769
768
767
766
765
764
763
762
761
760
759
758
757
756
755
754
753
752
751
750
749
748
747
746
745
744
743
742
741
740
739
738
737
736
DEPTH (ft)
30 31
32 33
34 35
36 37
38 39
40 41
42 43
44 45
46 47
48 49
50 51
52 53
54 55
56 57
58 59
60 61
62 63
SAMPLE

SAMPLE NO
8 9
10 11
12 13
14 BLOWS
PER 6 IN.
10 9
6 5
16 50/5
50/0
18 10
10 9
50/3
24 11
15 9
BLOWS

PER FOOT
42 21
25 18
50/3
50/5
50/0
POCKET
PEN. (TSF)

2.25 2.00

GRAPHIC LOG

DESCRIPTION
CLAYEY SAND (SC); dense; purplish
brown; moist; mostly medium to fine SAND;
few subangular coarse GRAVEL; little fines.
dense; brown
CLAYEY SAND with GRAVEL (SC); medium
dense; brown; moist; mostly medium to fine
SAND; some fines; little coarse to fine,
subangular GRAVEL.

SANDY lean CLAY (CL); very stiff; grayish
brown; moist; mostly fines; some medium to
fine SAND; few coarse to fine GRAVEL.
bluish gray
reddish brown; fine GRAVEL
Sedimentary (sandstone); orangish brown;
decomposed; very soft to soft.
(CLAYEY SAND (SC); very dense; moist;
mostly medium to fine SAND; little fines; few
fine, subangular GRAVEL)
Bottom of borehole at 60.0 ft bgs
RECOVERY(%)
78 67
50 39
56 60
0 RQD (%)

LABORATORY

PLASTIC
LIMIT
LIQUID
LIMIT

MOISTURE
(%)

19.1 19.7
D. DENSITY
(PCF)
109.7
104.7
% PASSING
200 SIEVE
50 DRILL METHOD

CASING DEPTH

REMARKS
Driller notes harder
drilling from 29-30'
Driller notes softer
drilling at 35'
Switch to mud rotary at
40'- used 5' of 5"
diameter casing
Driller notes harder
drilling from 48-52.5',
softer drilling from

52.5-53.5', and then
harder drilling after 53.5'
Slow and hard drilling
from 55-60 with drill
chatter observed
Sampler rebounding at
60'; auger refusal
encountered after 60'
Crawford & Associates, Inc.
1100 Corporate Way, Suite 230
Sacramento, CA 95831
(916) 455-4225
PROJECT NO: 19-503.1
PROJECT: Ukiah Recycled Water Pipeline-Phase 4
BORING: A-20-001
ENTRY BY: KBH
CHECKED BY: HFW SHEET # 2 of 2
DRAFT Appendix C-79 8660F10 April 2023

FIELD

ELEVATION
(ft)
634
633
632
631
630
629
628
627
626
625
624
623
622
621
620
619
618
617
616
615
614
613
612
611
610
609
608
607
606
DEPTH (ft)
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
SAMPLE

SAMPLE NO
Bulk
1 2
3 4
5 6
7 BLOWS
PER 6 IN.
12 13
14 15
14 7
17 21
19 17
28 20
11 32
21 25
18 24
22 13
50/5
BLOWS

PER FOOT
42 44
35 52
42 24
82/11
POCKET
PEN. (TSF)
+4.5
+4.5
+4.5

GRAPHIC LOG

DESCRIPTION
Lean CLAY with SAND (CL); brown; moist;
mostly fines; little fine SAND; trace organics.
hard
SANDY SILT (ML); dense; brown; dry;
mostly fines; some fine SAND.

Lean CLAY (CL); hard; brown; moist; mostly
fines; trace fine SAND.

CLAYEY GRAVEL with SAND (GC); very
dense; dry to moist; mostly coarse to fine,
angular to subangular GRAVEL; little coarse
to fine SAND; little fines.
dense
CLAYEY SAND with GRAVEL (SC); medium
dense; moist; mostly coarse to fine SAND;
some coarse to fine, angular to subangular
GRAVEL; little fines.

CLAYEY GRAVEL with SAND (GC); very
dense; yellowish brown; moist; mostly
coarse to fine, angular to subangular
GRAVEL; little medium SAND; little fines.

RECOVERY(%)
100
78 78
100
67 67
100
71 RQD (%)

LABORATORY

PLASTIC
LIMIT
18 LIQUID
LIMIT
32 MOISTURE
(%)

9.0 8.5

3.0 10.9
D. DENSITY
(PCF)
111.2
103.1
128.9
125.8
% PASSING
200 SIEVE
70 16

DRILL METHOD

CASING DEPTH

REMARKS
UC = 9,115 psf
Light rig chatter
observed
Driller notes fine gravels
at 13', coarse gravels at
14', and then easy
drilling to 15'
Switched to Mud Rotary
at 20'- used 5' of 5"
diameter casing
LOG OF BORING R-20-002
PROJECT NO: 19-503.1 BEGIN DATE: 12/02/2020 DRILLING CONTRACTOR: GeoEx Subsurface Exploration PROJECT: Ukiah Recycled Water Pipeline-Phase 4 COMPLETION DATE: 12/02/2020 DRILLING METHOD: SS Augers (4"), Rotary (4") LOCATION: Ukiah, CA SURFACE ELEVATION: 634.40 (ft) DRILL RIG: CME 75 (Track Mounted) COUNTY: Mendocino SURFACE CONDITION: Soil HAMMER TYPE: Automatic; 140 lbs; 30 in. drop CLIENT: Carollo Engineers, Inc. WATER DEPTH: 17.0 ft SAMPLER TYPE & SIZE: Bulk, MCAL (2.4" ID), SPT (1.4" ID) LOGGED BY: MEA READING TAKEN: 12/02/20 BOREHOLE DIAMETER: 4.0 in.

DEPTH OF BORING: 81.50 (ft) HAMMER EFFICIENCY: 89.1 (%) BACKFILL METHOD: Neat Cement Grout Crawford & Associates, Inc.
1100 Corporate Way, Suite 230
Sacramento, CA 95831
(916) 455-4225
PROJECT NO: 19-503.1
PROJECT: Ukiah Recycled Water Pipeline-Phase 4
BORING: R-20-002
ENTRY BY: KBH
CHECKED BY: HFW SHEET # 1 of 3
DRAFT Appendix C-80 8660F10 April 2023

FIELD

ELEVATION
(ft)
605
604
603
602
601
600
599
598
597
596
595
594
593
592
591
590
589
588
587
586
585
584
583
582
581
580
579
578
577
576
575
574
573
572
571
DEPTH (ft)
30 31
32 33
34 35
36 37
38 39
40 41
42 43
44 45
46 47
48 49
50 51
52 53
54 55
56 57
58 59
60 61
62 63
SAMPLE

SAMPLE NO
8 9
10 11
12 13
14 15
BLOWS
PER 6 IN.
16 push
10 7
10 8
9 14
25 push
19 8
11 14
18 25
26 push
26 8
14 25
28 40
BLOWS

PER FOOT
51 push
45 16
25 39
46 65
POCKET
PEN. (TSF)

3.00 0.75

4.25 4.00
+4.5
+4.5

1.50 GRAPHIC LOG

DESCRIPTION
CLAYEY GRAVEL with SAND (GC); very
dense; yellowish brown; moist; mostly
coarse to fine, angular to subangular
GRAVEL; little medium SAND; little fines.
dense
loose
Lean CLAY (CL); very stiff; brown; moist;
mostly fines; trace fine SAND.

Lean CLAY with GRAVEL (CL); reddish
brown; moist; mostly fines; little fine, angular
to subangular GRAVEL.
medium stiff
hard
Lean CLAY (CL); hard; brown; moist; mostly
fines; trace fine SAND.
few fine SAND
stiff; trace angular to subangular, coarse
GRAVEL
GRAVELLY lean CLAY with SAND (CL);
hard; reddish brown; moist; mostly fines;
some coarse to fine, angular to subangular
GRAVEL; little coarse to fine SAND.

RECOVERY(%)
67 50
44 0
100
83 50
50 RQD (%)

LABORATORY

PLASTIC
LIMIT
LIQUID
LIMIT

MOISTURE
(%)

21.5 D. DENSITY
(PCF)
107.5
% PASSING
200 SIEVE
81 DRILL METHOD

CASING DEPTH

REMARKS
Crawford & Associates, Inc.
1100 Corporate Way, Suite 230
Sacramento, CA 95831
(916) 455-4225
PROJECT NO: 19-503.1
PROJECT: Ukiah Recycled Water Pipeline-Phase 4
BORING: R-20-002
ENTRY BY: KBH
CHECKED BY: HFW SHEET # 2 of 3
DRAFT Appendix C-81 8660F10 April 2023

FIELD

ELEVATION
(ft)
570
569
568
567
566
565
564
563
562
561
560
559
558
557
556
555
554
553
552
551
550
549
548
547
546
545
544
543
542
541
540
539
538
537
536
DEPTH (ft)
65 66
67 68
69 70
71 72
73 74
75 76
77 78
79 80
81 82
83 84
85 86
87 88
89 90
91 92
93 94
95 96
97 98
SAMPLE

SAMPLE NO
16 17
18 19
20 BLOWS
PER 6 IN.
15 20
17 16
17 28
74 24
21 32
33 50
30 19
40 BLOWS

PER FOOT
61 124
54 40
72 POCKET
PEN. (TSF)
+4.5

2.00 +4.5

GRAPHIC LOG

DESCRIPTION
GRAVELLY lean CLAY with SAND (CL);
hard; reddish brown; moist; mostly fines;
some coarse to fine, angular to subangular
GRAVEL; little coarse to fine SAND.

CLAYEY GRAVEL (GC); very dense; reddish
brown; moist; mostly coarse to fine, angular
to subangular GRAVEL; some fines; few
coarse to fine SAND.

Lean CLAY with SAND (CL); very stiff;
brown; moist; mostly fines; little medium to
fine SAND.

GRAVELLY lean CLAY with SAND (CL);
hard; moist; gray; mostly fines; some coarse
to fine, angular to subangular GRAVEL; little
medium to fine SAND.

Bottom of borehole at 81.5 ft bgs
RECOVERY(%)
50 50
0 33
100
RQD (%)

LABORATORY

PLASTIC
LIMIT
LIQUID
LIMIT

MOISTURE
(%)
D. DENSITY
(PCF)
% PASSING
200 SIEVE

DRILL METHOD

CASING DEPTH

REMARKS
Crawford & Associates, Inc.
1100 Corporate Way, Suite 230
Sacramento, CA 95831
(916) 455-4225
PROJECT NO: 19-503.1
PROJECT: Ukiah Recycled Water Pipeline-Phase 4
BORING: R-20-002
ENTRY BY: KBH
CHECKED BY: HFW SHEET # 3 of 3
DRAFT Appendix C-82 8660F10 April 2023

FIELD

ELEVATION
(ft)
635
634
633
632
631
630
629
628
627
626
625
624
623
622
621
620
619
618
617
616
615
614
613
612
611
610
609
608
DEPTH (ft)
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
SAMPLE

SAMPLE NO
Bulk
1 2
3 4
5 6
7 BLOWS
PER 6 IN.
16 16
11 11
8 17
13 20
29 21
19 19
50 14
25 30
21 29
13 15
BLOWS

PER FOOT
45 59
42 48
32 29
POCKET
PEN. (TSF)
+4.5
+4.5
+4.5
+4.5

GRAPHIC LOG

DESCRIPTION
Lean CLAY with SAND (CL); brown; moist;
mostly fines; little fine SAND.
hard
SILTY SAND with GRAVEL (SM); dense;
brown; dry; mostly coarse to fine SAND; little
coarse to fine GRAVEL; little fines; trace
organics.

GRAVELLY lean CLAY with SAND (CL);
hard; light brown; dry; mostly fines; some
fine GRAVEL; little coarse to fine SAND.

SILTY GRAVEL with SAND (GM); dense;
reddish brown; moist; mostly coarse to fine
GRAVEL; little coarse to fine SAND; little
fines.

CLAYEY GRAVEL with SAND (GC); very
dense; brown; wet; mostly coarse to fine
GRAVEL; little coarse to fine SAND; little
fines.

CLAYEY SAND with GRAVEL (SC); medium
dense; brown; moist; mostly coarse to fine
SAND; some coarse to fine GRAVEL; little
fines.

CLAYEY GRAVEL with SAND (GC); very
dense; brown; moist; mostly coarse to fine
GRAVEL; little coarse to fine SAND; little
fines.

RECOVERY(%)
100
100
67 67
67 67
75 50
RQD (%)

LABORATORY

PLASTIC
LIMIT
17 LIQUID
LIMIT
33 MOISTURE
(%)

11.0 10.9

6.1 7.6

13.7 D. DENSITY
(PCF)
112.1

97.4 114.2

88.8 123.9
% PASSING
200 SIEVE
81 26
12 DRILL METHOD

CASING DEPTH

REMARKS
Corrosion
Soil pH: 6.06
Min. Resistivity: 780
ohm-cm
Chloride: 120.1 ppm
Sulfate: 169.7 ppm
Switched to Mud Rotary
at 20'- used 5' of 5"
diameter casing
Drill chatter and slow
drilling at 22'
LOG OF BORING R-20-003
PROJECT NO: 19-503.1 BEGIN DATE: 12/03/2020 DRILLING CONTRACTOR: GeoEx Subsurface Exploration PROJECT: Ukiah Recycled Water Pipeline-Phase 4 COMPLETION DATE: 12/03/2020 DRILLING METHOD: SS Augers (4"), Rotary (4") LOCATION: Ukiah, CA SURFACE ELEVATION: 636.20 (ft) DRILL RIG: CME 75 (Track Mounted) COUNTY: Mendocino SURFACE CONDITION: Soil HAMMER TYPE: Automatic; 140 lbs; 30 in. drop CLIENT: Carollo Engineers, Inc. WATER DEPTH: 18.5 ft SAMPLER TYPE & SIZE: Bulk, MCAL (2.4" ID) LOGGED BY: MEA READING TAKEN: 12/03/20 BOREHOLE DIAMETER: 4.0 in.

DEPTH OF BORING: 76.50 (ft) HAMMER EFFICIENCY: 89.1 (%) BACKFILL METHOD: Neat Cement Grout Crawford & Associates, Inc.
1100 Corporate Way, Suite 230
Sacramento, CA 95831
(916) 455-4225
PROJECT NO: 19-503.1
PROJECT: Ukiah Recycled Water Pipeline-Phase 4
BORING: R-20-003
ENTRY BY: KBH
CHECKED BY: HFW SHEET # 1 of 3
DRAFT Appendix C-83 8660F10 April 2023

FIELD

ELEVATION
(ft)
606
605
604
603
602
601
600
599
598
597
596
595
594
593
592
591
590
589
588
587
586
585
584
583
582
581
580
579
578
577
576
575
574
573
DEPTH (ft)
30 31
32 33
34 35
36 37
38 39
40 41
42 43
44 45
46 47
48 49
50 51
52 53
54 55
56 57
58 59
60 61
62 63
SAMPLE

SAMPLE NO
8 9
10 11
12 13
14 BLOWS
PER 6 IN.
17 16
10 8
11 10
11 28
26 20
10 18
17 18
35 34
28 11
23 34
25 BLOWS

PER FOOT
63 60
48 21
41 51
43 POCKET
PEN. (TSF)

3.50 2.25

1.75 +4.5

3.25 GRAPHIC LOG

DESCRIPTION
CLAYEY GRAVEL with SAND (GC); very
dense; brown; moist; mostly coarse to fine
GRAVEL; little coarse to fine SAND; little
fines.

SANDY lean CLAY (CL); very stiff; yellowish
brown; moist; mostly fines; some medium to
fine SAND; few fine, angular to subangular
GRAVEL.

Lean CLAY with SAND (CL); stiff; blueish
gray variegated with reddish brown; moist;
mostly fines; little medium to fine SAND.

Lean CLAY (CL); hard; yellowish brown;
moist; mostly fines; trace fine SAND.

GRAVELLY lean CLAY with SAND (CL);
very stiff; yellowish brown; moist; mostly
fines; some coarse to fine GRAVEL; little
coarse to fine SAND.

RECOVERY(%)
67 56
50 50
50 50
44 RQD (%)

LABORATORY

PLASTIC
LIMIT
LIQUID
LIMIT

MOISTURE
(%)

19.9 D. DENSITY
(PCF)
110.6
% PASSING
200 SIEVE

DRILL METHOD

CASING DEPTH

REMARKS
Crawford & Associates, Inc.
1100 Corporate Way, Suite 230
Sacramento, CA 95831
(916) 455-4225
PROJECT NO: 19-503.1
PROJECT: Ukiah Recycled Water Pipeline-Phase 4
BORING: R-20-003
ENTRY BY: KBH
CHECKED BY: HFW SHEET # 2 of 3
DRAFT Appendix C-84 8660F10 April 2023

FIELD

ELEVATION
(ft)
571
570
569
568
567
566
565
564
563
562
561
560
559
558
557
556
555
554
553
552
551
550
549
548
547
546
545
544
543
542
541
540
539
538
DEPTH (ft)
65 66
67 68
69 70
71 72
73 74
75 76
77 78
79 80
81 82
83 84
85 86
87 88
89 90
91 92
93 94
95 96
97 98
SAMPLE

SAMPLE NO
15 16
17 BLOWS
PER 6 IN.
12 14
14 24
26 25
40 39
40 BLOWS

PER FOOT
64 65
65 POCKET
PEN. (TSF)
+4.5

4.00 4.00

GRAPHIC LOG

DESCRIPTION
GRAVELLY lean CLAY with SAND (CL);
very stiff; yellowish brown; moist; mostly
fines; some coarse to fine GRAVEL; little
coarse to fine SAND.
hard
Bottom of borehole at 76.5 ft bgs
RECOVERY(%)
67 50
50 RQD (%)

LABORATORY

PLASTIC
LIMIT
LIQUID
LIMIT

MOISTURE
(%)
D. DENSITY
(PCF)
% PASSING
200 SIEVE

DRILL METHOD

CASING DEPTH

REMARKS
Crawford & Associates, Inc.
1100 Corporate Way, Suite 230
Sacramento, CA 95831
(916) 455-4225
PROJECT NO: 19-503.1
PROJECT: Ukiah Recycled Water Pipeline-Phase 4
BORING: R-20-003
ENTRY BY: KBH
CHECKED BY: HFW SHEET # 3 of 3
DRAFT Appendix C-85 8660F10 April 2023

Appendix C-86 8660F10 April 2023

DRAFT GEOTECHNICAL REPORT Crawford
City of Ukiah Recycled Water Pipeline – Phase 4 Design Project File: 19-503.1 Ukiah, California August 20, 2021

APPENDIX III
Laboratory Test Results
DRAFT Appendix C-87 8660F10 April 2023

Appendix C-88 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 6/10/19
Technician: CAP,GW, MA
1 2 3 4 5
USCS Symbol CL CL CL CL CL
Depth (ft.) 6 7.5 11 12.5 16
Sample Length (in.) 5.994 3.173 5.458 5.436 5.741
Diameter (in.) 2.410 1.378 2.381 1.369 2.397
Sample Volume (ft3) 0.01582 0.00274 0.01406 0.00463 0.01499 Total Mass Soil+Tube (g) 1113.2 160.7 1117.2 275.0 868.6 Mass of Tube (g) 273.7 0.0 275.7 0.0 0.0
Tare No. 1016 A6 H4 C20 G13
Tare (g) 126.9 13.5 13.3 13.5 13.5
Wet Soil + Tare (g) 367.5 51.0 76.6 79.7 72.4
Dry Soil + Tare (g) 328.3 45.2 67.0 68.5 62.6
Dry Soil (g) 201.4 31.8 53.7 55.0 49.2
Water (g) 39.2 5.7 9.6 11.2 9.7
Moisture (%) 19.5 18.0 17.9 20.4 19.8
Dry Density (pcf) 97.9 109.7 111.9 108.7 106.6
Notes:

Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
Sample No. R-19-001-
1A
R-19-001-
2A
R-19-001-
3A
R-19-001-
4A
R-19-001-
5A
DRAFT Appendix C-89 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 6/10/19
Technician: CAP,GW, MA
1 2 3 4 5
USCS Symbol CL CL CL CL CL
Depth (ft.) 17.5 21 6 11 16
Sample Length (in.) 5.220 4.956 5.439 5.981 6.026
Diameter (in.) 1.392 2.383 2.384 2.396 2.409
Sample Volume (ft3) 0.00460 0.01279 0.01404 0.01560 0.01589 Total Mass Soil+Tube (g) 407.0 1032.8 782.0 1207.5 894.1 Mass of Tube (g) 133.5 273.5 0.0 275.5 0.0
Tare No. D19 D2 1014.0 R15 D8
Tare (g) 20.6 20.8 125.6 130.6 20.6
Wet Soil + Tare (g) 81.6 82.4 505.5 392.9 86.2
Dry Soil + Tare (g) 70.4 71.3 429.1 351.7 72.7
Dry Soil (g) 49.8 50.5 303.5 221.1 52.0
Water (g) 11.3 11.1 76.4 41.2 13.5
Moisture (%) 22.7 22.0 25.2 18.6 25.9
Dry Density (pcf) 107.0 107.3 98.1 111.0 98.5
Notes:

Sample No. R-19-001-
6A
R-19-001-
7A
R-19-002-
1A
R-19-002-
2A
R-19-002-
3A
Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
DRAFT Appendix C-90 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 6/10/19
Technician: GW,MA
1 2 3 4 5
USCS Symbol CL CL CL CL CL
Depth (ft.) 21 26 3.5 6 8.5
Sample Length (in.) 5.622 5.484 5.638 4.853 5.096
Diameter (in.) 2.391 2.364 2.383 2.364 2.387
Sample Volume (ft3) 0.01460 0.01393 0.01455 0.01233 0.01319 Total Mass Soil+Tube (g) 1135.1 1046.3 775.5 1007.5 1031.9 Mass of Tube (g) 273.8 276.8 0.0 275.1 276.2
Tare No. G24 C12 F3 G23 G163
Tare (g) 20.6 20.8 13.4 20.3 20.3
Wet Soil + Tare (g) 88.6 83.0 52.5 85.3 80.5
Dry Soil + Tare (g) 75.7 70.9 43.0 72.1 68.5
Dry Soil (g) 55.1 50.2 29.6 51.8 48.2
Water (g) 12.9 12.1 9.5 13.2 12.1
Moisture (%) 23.4 24.1 32.1 25.4 25.0
Dry Density (pcf) 105.4 98.1 89.0 104.4 101.0
Notes:

Sample No.

Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
R-19-002-
4A
R-19-002-
5A
A-19-003-
1A
A-19-003-
2A
A-19-003-
3A
DRAFT Appendix C-91 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 6/10/19
Technician: CAP
1 2 3 4 5
USCS Symbol CL CL CL SC SC
Depth (ft.) 6 11 16 6 8.5
Sample Length (in.) 5.981 5.472 5.548 4.080 5.647
Diameter (in.) 2.398 2.358 2.360 2.382 2.348
Sample Volume (ft3) 0.01562 0.01383 0.01405 0.01052 0.01415 Total Mass Soil+Tube (g) 1092.0 799.4 1116.2 914.1 1194.5 Mass of Tube (g) 227.9 0.0 274.8 280.8 275.2
Tare No. R14 G1 A18 2023 B13
Tare (g) 129.9 13.3 20.5 125.3 20.7
Wet Soil + Tare (g) 356.9 74.2 80.5 475.2 80.0
Dry Soil + Tare (g) 319.3 62.9 69.1 441.4 74.0
Dry Soil (g) 189.4 49.6 48.6 316.1 53.3
Water (g) 37.6 11.3 11.4 33.8 6.0
Moisture (%) 19.9 22.8 23.5 10.7 11.3
Dry Density (pcf) 101.7 103.8 106.9 119.8 128.7
Notes:

Sample No.

Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
R-19-004-
1A
R-19-004-
2A
R-19-004-
3A
A-19-005-
1A
A-19-005-
2A
DRAFT Appendix C-92 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 6/10/19
Technician: GW, MA, HFW
1 2 3 4 5
USCS Symbol SC CL GP-GC CL GW-GC
Depth (ft.) 6 8.5 6 5.5 6
Sample Length (in.) 4.415 5.040 3.750 5.999 2.388
Diameter (in.) 2.369 2.361 2.380 2.385 2.383
Sample Volume (ft3) 0.01126 0.01277 0.00965 0.01551 0.00616 Total Mass Soil+Tube (g) 953.1 1029.2 911.9 1223.5 591.5 Mass of Tube (g) 276.8 275.6 276.0 275.3 256.5
Tare No. R15 C1 2011 D12 2010
Tare (g) 130.6 20.7 122.7 13.5 126.2
Wet Soil + Tare (g) 508.7 81.4 482.6 50.3 543.7
Dry Soil + Tare (g) 463.8 75.9 455.3 45.9 530.1
Dry Soil (g) 333.2 55.1 332.6 32.5 403.9
Water (g) 44.9 5.5 27.3 4.3 13.6
Moisture (%) 13.5 10.0 8.2 13.3 3.4
Dry Density (pcf) 116.7 118.3 134.2 118.9 115.9
Notes:

Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
Sample No. A-19-006-
1A
A-19-006-
2A
A-19-007-
1A
A-19-008-
1A
R-19-009-
1A
DRAFT Appendix C-93 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 6/10/19
Technician: GW, BJU,
1 2 3 4 5
USCS Symbol GP-GM GP-GM GP-GM SC CL
Depth (ft.) 11 16 21 6 6
Sample Length (in.) 2.077 4.890 - 5.487 5.966
Diameter (in.) 2.367 2.370 - 2.385 2.352
Sample Volume (ft3) 0.00529 0.01249 - 0.01419 0.01500
Total Mass Soil+Tube (g) 679.9 1126.1 - 1095.2 1145.5
Mass of Tube (g) 282.8 288.8 - 273.7 273.6
Tare No. H18 2014 2015 N/A C18
Tare (g) 13.2 123.1 122.2 20.9 13.3
Wet Soil + Tare (g) 115.5 585.7 720.6 83.7 47.7
Dry Soil + Tare (g) 111.8 546.3 631.5 76.1 41.8
Dry Soil (g) 98.6 423.2 509.3 55.3 28.5
Water (g) 3.6 39.4 89.1 7.6 5.9
Moisture (%) 3.7 9.3 17.5 13.8 20.7
Dry Density (pcf) 159.7 135.2 - 112.2 106.2
Notes:

Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
Sample No. R-19-009-
2A
R-19-009-
3A
R-19-009-
4A
A-19-010-
1A
A-19-011-
1A
DRAFT Appendix C-94 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 6/10/19
Technician: GW, BJU,
1 2 3 4 5
USCS Symbol SC CL CL GP-GC GP-GC
Depth (ft.) 6 3.5 6 6 8.5
Sample Length (in.) 5.466 5.978 5.730 4.676 3.825
Diameter (in.) 2.364 2.401 2.373 2.359 2.340
Sample Volume (ft3) 0.01388 0.01566 0.01467 0.01183 0.00952 Total Mass Soil+Tube (g) 850.8 1174.0 1154.6 972.3 882.4 Mass of Tube (g) 0.0 274.9 275.2 275.8 276.2
Tare No. 2009 1020 G20 B5 H22
Tare (g) 122.5 126.5 20.4 21.1 20.7
Wet Soil + Tare (g) 449.6 346.8 86.5 82.0 86.2
Dry Soil + Tare (g) 413.8 308.1 75.9 74.4 77.8
Dry Soil (g) 291.3 181.6 55.5 53.2 57.1
Water (g) 35.8 38.7 10.5 7.6 8.4
Moisture (%) 12.3 21.3 19.0 14.3 14.7
Dry Density (pcf) 120.4 104.3 111.1 113.6 122.3
Notes:

Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
Sample No. A-19-012-
1A
A-19-013-
1A
A-19-013-
2A
A-19-014-
2A
A-19-014-
3A
DRAFT Appendix C-95 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 6/10/19
Technician: GW, BJU,
1 2 3 4 5
USCS Symbol SC SP-SC GP-GC GP-GC SM
Depth (ft.) 3.5 3.5 6 8.5 6
Sample Length (in.) - 4.917 3.907 - 4.166
Diameter (in.) - 2.389 2.366 - 2.399
Sample Volume (ft3) - 0.01275 0.00994 - 0.01090
Total Mass Soil+Tube (g) - 980.0 857.1 - 907.5
Mass of Tube (g) - 275.4 282.3 - 260.8
Tare No. R5 H1 H20 H19 2011
Tare (g) 126.1 20.3 20.2 20.3 122.9
Wet Soil + Tare (g) 341.0 87.6 79.9 87.6 655.4
Dry Soil + Tare (g) 320.4 84.9 77.2 84.9 629.9
Dry Soil (g) 194.3 64.5 57.0 64.5 507.0
Water (g) 20.6 2.8 2.7 2.8 25.5
Moisture (%) 10.6 4.3 4.7 4.3 5.0
Dry Density (pcf) - 116.8 121.7 - 124.6
Notes:

Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
Sample No. A-19-015-
1A
A-19-016-
1A
A-19-016-
2A
A-19-016-
3A
R-19-017-
1A
DRAFT Appendix C-96 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 6/10/19
Technician: GW, MA
1 2 3 4 5
USCS Symbol SP-SC SP-SC SP-SC CL
Depth (ft.) 11 21 26 31 3.5
Sample Length (in.) - 4.606 5.378 5.157 5.750
Diameter (in.) - 1.404 1.392 1.401 2.328
Sample Volume (ft3) - 0.00413 0.00474 0.00460 0.01416
Total Mass Soil+Tube (g) - 419.8 464.4 463.9 1134.6
Mass of Tube (g) - 132.4 132.7 141.4 274.1
Tare No. F9 1003 B19 R14 E7
Tare (g) 21.0 126.0 20.6 129.5 13.6
Wet Soil + Tare (g) 82.2 410.8 83.5 376.8 78.3
Dry Soil + Tare (g) 80.1 389.3 77.3 354.7 68.7
Dry Soil (g) 59.0 263.3 56.7 225.2 55.2
Water (g) 2.1 21.5 6.2 22.1 9.6
Moisture (%) 3.6 8.2 10.9 9.8 17.4
Dry Density (pcf) - 141.9 139.2 140.7 114.2
Notes:

Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
Sample No. A-19-018-
1A
R-19-017-
6A
R-19-017-
5A
R-19-017-
4A
R-19-017-
2A
DRAFT Appendix C-97 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 6/10/19
Technician: GW, MA
1 2 3 4 5
USCS Symbol CL SP SP-SC SP-SC GC
Depth (ft.) 6 3.5 6 8.5 11
Sample Length (in.) 5.738 5.017 3.100 5.976 -
Diameter (in.) 2.360 2.337 2.364 2.370 -
Sample Volume (ft3) 0.01452 0.01246 0.00787 0.01525 -
Total Mass Soil+Tube (g) 1209.2 1043.4 652.2 1055.2 -
Mass of Tube (g) 276.2 282.6 282.8 274.6 -
Tare No. G11 H7 B20 H4 2007
Tare (g) 20.3 20.1 13.7 20.1 122.7
Wet Soil + Tare (g) 87.9 82.6 86.3 81.8 325.7
Dry Soil + Tare (g) 79.1 73.5 82.7 78.9 297.9
Dry Soil (g) 58.9 53.4 69.0 58.8 175.2
Water (g) 8.7 9.1 3.6 2.9 27.8
Moisture (%) 14.9 17.0 5.2 4.9 15.9
Dry Density (pcf) 123.3 115.0 98.4 107.6 -
Notes:

R-19-021-
2A
A-19-020-
2A
A-19-020-
1A
A-19-019-
1A
A-19-018-
2A
Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
Sample No.

DRAFT Appendix C-98 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 6/10/19
Technician: GW, MA
1 2 3 4 5
USCS Symbol GP GP SC CL SP-SC
Depth (ft.) 16 21 6 8.5 3.5
Sample Length (in.) - - 5.245 5.659 -
Diameter (in.) - - 2.364 2.363 -
Sample Volume (ft3) - - 0.01332 0.01436 -
Total Mass Soil+Tube (g) - - 1086.1 1151.2 -
Mass of Tube (g) - - 274.8 275.0 -
Tare No. R16 2025 2004 D5 1012
Tare (g) 131.1 125.6 125.9 20.6 126.1
Wet Soil + Tare (g) 337.5 343.6 336.0 81.8 335.0
Dry Soil + Tare (g) 315.2 318.4 307.8 72.4 321.5
Dry Soil (g) 184.1 192.8 181.9 51.8 195.4
Water (g) 22.3 25.2 28.2 9.4 13.5
Moisture (%) 12.1 13.1 15.5 18.1 6.9
Dry Density (pcf) - - 116.2 113.9 -
Notes:

A-19-022-
1A
R-19-021-
4A
R-19-021-
3A Sample No.

Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
A-19-023-
1A
A-19-022-
2A
DRAFT Appendix C-99 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 6/10/19
Technician: GW, MA
1 2 3 4 5
USCS Symbol SP GP-GC CL CL
Depth (ft.) 6 11 6 16
Sample Length (in.) 4.503 5.517 5.940 5.588
Diameter (in.) 2.373 2.374 2.361 2.358
Sample Volume (ft3) 0.01153 0.01413 0.01505 0.01412
Total Mass Soil+Tube (g) 936.7 1215.2 1222.3 1126.5
Mass of Tube (g) 274.6 284.4 275.8 275.8
Tare No. A5 R13 C19 A8
Tare (g) 20.9 129.1 13.7 20.5
Wet Soil + Tare (g) 85.5 381.5 51.7 93.6
Dry Soil + Tare (g) 81.1 364.0 47.8 80.3
Dry Soil (g) 60.2 234.9 34.1 59.9
Water (g) 4.4 17.5 3.9 13.3
Moisture (%) 7.3 7.4 11.4 22.2
Dry Density (pcf) 118.0 135.1 124.5 108.7
Notes:

R-19-024-
3A Sample No.

Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
R-19-024-
1A
A-19-023-
4A
A-19-023-
2A
DRAFT Appendix C-100 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 1/18/21
Technician: MCC
1 2 3 4 5
USCS Symbol GC GC SC CL CL
Depth (ft.) 8 10.5 15.5 41 46
Sample Length (in.) 6.001 4.970 5.559 5.488 5.970
Diameter (in.) 2.405 2.393 2.387 2.389 2.400
Sample Volume (ft3) 0.01578 0.01294 0.01440 0.01424 0.01563 Total Mass Soil+Tube (g) 1208.1 1012.7 1155.1 1120.4 1163.4 Mass of Tube (g) 272.9 285.3 275.5 277.2 275.2
Tare No. X7 L4 X1 K5 X3
Tare (g) 147.9 13.7 152.6 13.6 151.4
Wet Soil + Tare (g) 509.7 81.3 622.8 64.8 528.4
Dry Soil + Tare (g) 483.0 76.7 575.8 56.6 466.4
Dry Soil (g) 335.1 63.1 423.2 43.0 315.0
Water (g) 26.7 4.6 47.0 8.2 62.0
Moisture (%) 8.0 7.3 11.1 19.1 19.7
Dry Density (pcf) 121.0 115.6 121.2 109.7 104.7
Notes:

Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
A-20-001-11A had a 1.0" diameter wood piece in sample.

Sample No. A-20-001-
3B
A-20-001-
4B
A-20-001-
5B
A-20-001-
10A
A-20-001-
11A
DRAFT Appendix C-101 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 12/31/20
Technician: MCC
1 2 3 4 5
USCS Symbol CL ML GC SC CL
Depth (ft.) 5.5 8.5 11 21 41
Sample Length (in.) 5.631 5.987 4.258 5.511 5.503
Diameter (in.) 2.380 2.399 2.393 2.393 2.389
Sample Volume (ft3) 0.01450 0.01566 0.01108 0.01434 0.01428 Total Mass Soil+Tube (g) 796.7 1070.0 943.1 1184.2 1119.4 Mass of Tube (g) 0.0 275.3 275.3 276.2 273.7
Tare No. D17 R21 J5 Q3 X8
Tare (g) 13.7 126.2 13.5 126.5 150.6
Wet Soil + Tare (g) 70.1 519.3 107.6 590.6 495.0
Dry Soil + Tare (g) 65.5 488.4 104.8 544.8 434.0
Dry Soil (g) 51.7 362.2 91.3 418.3 283.4
Water (g) 4.6 30.9 2.8 45.8 61.0
Moisture (%) 9.0 8.5 3.0 10.9 21.5
Dry Density (pcf) 111.2 103.1 128.9 125.8 107.5
Notes:

Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
Sample No.

R-20-002-6A has a strong gasoline odor.

R-20-002-
2A
R-20-002-
3A
R-20-002-
4A
R-20-002-
6A
R-20-002-
10A
DRAFT Appendix C-102 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 12/31/20
Technician: MCC
1 2 3 4 5
USCS Symbol CL CL SM CL SC
Depth (ft.) 6 8.5 11 15.5 26
Sample Length (in.) 5.398 3.894 5.276 4.930 5.146
Diameter (in.) 2.377 2.379 2.386 2.397 2.390
Sample Volume (ft3) 0.01386 0.01002 0.01365 0.01287 0.01336 Total Mass Soil+Tube (g) 1061.3 771.4 1025.8 844.8 1129.9 Mass of Tube (g) 278.6 280.2 275.1 286.9 276.4
Tare No. X6 A20 X10 J2 J18
Tare (g) 148.4 13.6 150.6 13.5 13.5
Wet Soil + Tare (g) 495.3 64.6 603.7 91.1 80.5
Dry Soil + Tare (g) 460.8 59.6 577.6 85.7 72.5
Dry Soil (g) 312.4 45.9 427.0 72.1 59.0
Water (g) 34.5 5.0 26.1 5.5 8.1
Moisture (%) 11.0 10.9 6.1 7.6 13.7
Dry Density (pcf) 112.1 97.4 114.2 88.8 123.9
Notes:
)
R-20-003-
2A
R-20-003-
3A
R-20-003-
4A
R-20-003-
5B
R-20-003-
7A Sample No.

R-20-003-4A had few roots in the sample.

R-20-003-5B had material loose in the tube.

Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
DRAFT Appendix C-103 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 12/31/20
Technician: MCC
1 2 3 4 5
USCS Symbol CL
Depth (ft.) 46
Sample Length (in.) 5.469
Diameter (in.) 2.381
Sample Volume (ft3) 0.01409
Total Mass Soil+Tube (g) 1127.7
Mass of Tube (g) 279.7
Tare No. J13
Tare (g) 13.5
Wet Soil + Tare (g) 69.6
Dry Soil + Tare (g) 60.3
Dry Soil (g) 46.7
Water (g) 9.3
Moisture (%) 19.9
Dry Density (pcf) 110.6
Notes:

R-20-003-
11A Sample No.

Ukiah Recycled Water Pipeline - Phase 4
MOISTURE-DENSITY TESTS - D2216
DRAFT Appendix C-104 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 4/16/19
Technician: HFW
Sample ID: R-19-001-2A Depth (ft): 7.5
USCS Classification: CL
Dry Density (pcf) 109.7
Water Content (%) 18.0
Unconfined Compressive
Strength (psi) 35.2
Unconfined Compressive
Strength (psf) 5069
Shear Strength (psf) 2534.4
Average Height (in) 3.173
Average Diameter (in) 1.378
Rate of strain (%) 1.0
Strain at Failure (%) 14.3
Notes:

Ukiah Recycled Water Pipeline-Phase 4
UNCONFINED COMPRESSION TEST - D2166

0.0 5.0

10.0 15.0

20.0 25.0

30.0 35.0

40.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
Compressive Strength (psi)
Axial Strain (%)
DRAFT
R
Appendix C-105 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 4/17/19
Technician: HFW
Sample ID: R-19-001-5A Depth (ft): 16.0
USCS Classification: CL
Dry Density (pcf) 106.6
Water Content (%) 19.8
Unconfined Compressive
Strength (psi) 47.5
Unconfined Compressive
Strength (psf) 6840
Shear Strength (psf) 3420
Average Height (in) 5.741
Average Diameter (in) 2.397
Rate of strain (%) 2.0
Strain at Failure (%) 12.6
Notes:

Ukiah Recycled Water Pipeline-Phase 4
UNCONFINED COMPRESSION TEST - D2166

0.0 5.0

10.0 15.0

20.0 25.0

30.0 35.0

40.0 45.0

50.0 0.0 5.0 10.0 15.0 20.0 25.0
Compressive Strength (psi)
Axial Strain (%)
DRAFT
R
Appendix C-106 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 4/16/19
Technician: HFW
Sample ID: R-19-002-1A Depth (ft): 6.0
USCS Classification: CL
Dry Density (pcf) 98.1
Water Content (%) 25.2
Unconfined Compressive
Strength (psi) 14.0
Unconfined Compressive
Strength (psf) 2016
Shear Strength (psf) 1008
Average Height (in) 5.439
Average Diameter (in) 2.384
Rate of strain (%) 1.0
Notes:

Ukiah Recycled Water Pipeline-Phase 4
UNCONFINED COMPRESSION TEST - D2166
Strain at 15%

0.0 2.0

4.0 6.0

8.0 10.0

12.0 14.0

16.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0
Compressive Strength (psi)
Axial Strain (%)
DRAFT
R
Appendix C-107 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 4/18/19
Technician: HFW
Sample ID: A-19-003-1A Depth (ft): 3.5
USCS Classification: CL
Dry Density (pcf) 89.0
Water Content (%) 32.1
Unconfined Compressive
Strength (psi) 17.2
Unconfined Compressive
Strength (psf) 2477
Shear Strength (psf) 1238.4
Average Height (in) 5.638
Average Diameter (in) 2.383
Rate of strain (%) 2.0
Notes:

Ukiah Recycled Water Pipeline-Phase 4
UNCONFINED COMPRESSION TEST - D2166
Strain at 15%

0.0 2.0

4.0 6.0

8.0 10.0

12.0 14.0

16.0 18.0

20.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0
Compressive Strength (psi)
Axial Strain (%)
DRAFT Appendix C-108 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 4/18/19
Technician: HFW
Sample ID: R-19-004-2A Depth (ft): 11.0
USCS Classification: CL
Dry Density (pcf) 103.8
Water Content (%) 22.8
Unconfined Compressive
Strength (psi) 5.2
Unconfined Compressive
Strength (psf) 749
Shear Strength (psf) 374.4
Average Height (in) 5.472
Average Diameter (in) 2.358
Rate of strain (%) 2.0
Notes:

Ukiah Recycled Water Pipeline-Phase 4
UNCONFINED COMPRESSION TEST - D2166
Strain at 15%

0.0 1.0

2.0 3.0

4.0 5.0

6.0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0
Compressive Strength (psi)
Axial Strain (%)
DRAFT
R
Appendix C-109 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 1/8/21
Technician: LAD
Sample ID: R-20-002-2A Depth (ft): 5.5
USCS Classification: Lean CLAY (CL)
Dry Density (pcf) 111.2
Water Content (%) 9.0
Unconfined Compressive
Strength (psi) 63.3
Unconfined Compressive
Strength (psf) 9115
Shear Strength (psf) 4558
Average Height (in) 5.631
Average Diameter (in) 2.380
Rate of strain (%) 0.5
Strain at Failure (%) 1.8
Notes:

Ukiah Recycled Water Pipeline - Phase 4
UNCONFINED COMPRESSION TEST - D2166

0.0 10.0

20.0 30.0

40.0 50.0

60.0 70.0

0.0 0.5 1.0 1.5 2.0 2.5
Compressive Strength (psi)
Axial Strain (%)
DRAFT Appendix C-110 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 4/19/19
Technician: CAP
Method A
Max Particle
Size (100%
Passing)
Standard Sieve
Size
Recommended
Min Mass of
Test
Specimens
2 mm or less No. 10 20 g

4.75 mm No. 4 100 g

9.5 mm 3/8 " 500 g

19.0 mm 3/4 " 2.5 kg

37.5 mm 1 1/2 " 10 kg

75.0 mm 3 " 50 kg
Sample No. A-19-005-1A A-19-006-1A R-19-009-3A A-19-011-1A A-19-013-1A USCS Symbol SC SC GP-GM CL CL
Depth (ft.) 6 6 16 6 3.5
Tare No. 2023 R15 2014 1013 1020
Tare (g) 125.3 130.6 123.1 126.2 126.5
Dry Soil + Tare (g) 441.4 463.8 546.3 307.8 308.1
Dry Mass before (g) 316.1 333.2 423.2 181.6 181.6
Dry Mass after (g) 260.5 262.8 383.1 87.5 38.1
Percent Fines (%) 18 21 9 52 79
Ukaih Recycled Water Pipeline - Phase 4
200 Wash - ASTM D1140
Table from 6.2 of ASTM D1140
Notes:

DRAFT Appendix C-111 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 6/10/19
Technician: CAP
Method A
Max Particle
Size (100%
Passing)
Standard Sieve
Size
Recommended
Min Mass of
Test
Specimens
2 mm or less No. 10 20 g

4.75 mm No. 4 100 g

9.5 mm 3/8 " 500 g

19.0 mm 3/4 " 2.5 kg

37.5 mm 1 1/2 " 10 kg

75.0 mm 3 " 50 kg
Sample No. A-19-015-1A R-19-017-4A R-19-017-6A R-19-021-2A R-19-021-3A USCS Symbol SC SP-SC SP-SC GC GP
Depth (ft.) 3.5 21 31 11 16
Tare No. R5 1003 R14 2007 R10
Tare (g) 126.1 126 129.5 122.7 131.1
Dry Soil + Tare (g) 320.4 389.3 354.7 313.9 315.2
Dry Mass before (g) 194.3 263.3 225.2 191.2 184.1
Dry Mass after (g) 150.3 230.2 202.7 144.8 178.8
Percent Fines (%) 23 13 10 24 3
Ukiah Recycled Water Pipeline - Phase 4
200 Wash - ASTM D1140
Table from 6.2 of ASTM D1140
Notes:

DRAFT Appendix C-112 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 6/10/19
Technician: CAP
Method A
Max Particle
Size (100%
Passing)
Standard Sieve
Size
Recommended
Min Mass of
Test
Specimens
2 mm or less No. 10 20 g

4.75 mm No. 4 100 g

9.5 mm 3/8 " 500 g

19.0 mm 3/4 " 2.5 kg

37.5 mm 1 1/2 " 10 kg

75.0 mm 3 " 50 kg
Sample No. R-19-021-4A A-19-023-1A
USCS Symbol GP-GC SP-SC
Depth (ft.) 21 3.5
Tare No. 2025 1012
Tare (g) 125.6 126.1
Dry Soil + Tare (g) 318.4 321.5
Dry Mass before (g) 192.8 195.4
Dry Mass after (g) 179.2 171.0
Percent Fines (%) 7 12
Ukiah Recycled Water Pipeline - Phase 4
200 Wash - ASTM D1140
Table from 6.2 of ASTM D1140
Notes:

DRAFT Appendix C-113 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 12/31/20
Technician: MCC
Method A
Max Particle
Size (100%
Passing)
Standard Sieve
Size
Recommended
Min Mass of
Test
Specimens
2 mm or less No. 10 20 g

4.75 mm No. 4 100 g

9.5 mm 3/8 " 500 g

19.0 mm 3/4 " 2.5 kg

37.5 mm 1 1/2 " 10 kg

75.0 mm 3 " 50 kg
Sample No. A-20-001-3B A-20-001-5B R-20-002-3A R-20-002-10A R-20-003-2A USCS Symbol GC SC ML CL CL
Depth (ft.) 8 15.5 8.5 41 6
Tare No. X7 X1 R21 X8 X6
Tare (g) 147.9 152.6 126.2 150.6 148.4
Dry Soil + Tare (g) 483 575.8 488.4 434 460.8
Dry Mass before (g) 335.1 423.2 362.2 283.4 312.4
Dry Mass after (g) 249.9 279.1 109.8 52.7 58.9
Percent Fines (%) 25 34 70 81 81
Ukiah Recycled Water Pipeline - Phase 4
200 Wash - ASTM D1140
Table from 6.2 of ASTM D1140
Notes:

DRAFT Appendix C-114 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
4/24/19
CAP
R-19-001-1A
Depth (ft): 6
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
0 0 0 1 13
0 86
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 0.0 100%
3/4" 19.0 0.0 100%
1/2" 12.5 0.0 100%
3/8" 9.50 0.0 100%
#4 4.75 0.0 100%
#10 2.00 0.4 100%
#20 0.825 1.0 100%
#40 0.425 1.3 99%
#60 0.250 3.0 99%
#100 0.150 7.5 96%
#200 0.075 29.1 86%
Cu = NA Cc = NA
Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
14 Lean CLAY (CL)
% Cobble % Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
0 Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-115 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
4/19/19
CAP
R-19-002-1A
Depth (ft): 6
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
0 0 0 2 5
0 93
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 0.0 100%
3/4" 19.0 0.0 100%
1/2" 12.5 0.0 100%
3/8" 9.50 0.0 100%
#4 4.75 0.0 100%
#10 2.00 0.6 100%
#20 0.825 2.9 99%
#40 0.425 6.2 98%
#60 0.250 10.4 97%
#100 0.150 14.4 95%
#200 0.075 20.9 93%
Cu = NA Cc = NA
Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
% Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
0 Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
7 Lean CLAY (CL)
% Cobble
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-116 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
4/19/19
CAP
R-19-002-2A
Depth (ft): 11
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
0 0 1 4 23
0 72
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 0.0 100%
3/4" 19.0 0.0 100%
1/2" 12.5 0.0 100%
3/8" 9.50 0.0 100%
#4 4.75 0.3 100%
#10 2.00 1.8 99%
#20 0.825 4.3 98%
#40 0.425 10.2 95%
#60 0.250 22.8 90%
#100 0.150 37.9 83%
#200 0.075 62.2 72%
Cu = NA Cc = NA
Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
% Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
0 Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
28 Lean CLAY (CL)
% Cobble
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-117 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
4/24/19
CAP
R-19-004-1A
Depth (ft): 6
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
0 3 3 8 33
0 53
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 0.0 100%
3/4" 19.0 0.0 100%
1/2" 12.5 0.0 100%
3/8" 9.50 1.3 99%
#4 4.75 6.4 97%
#10 2.00 12.2 94%
#20 0.825 18.1 90%
#40 0.425 25.6 86%
#60 0.250 41.2 78%
#100 0.150 63.2 67%
#200 0.075 89.4 53%
Cu = NA Cc = NA
Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
% Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
3 Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
44 SANDY lean CLAY (CL)
% Cobble
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-118 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
5/1/19
AC
A-19-007-1A
Depth (ft): 6
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
17 35 9 8 17
0 14
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 0.0 100%
3/4" 19.0 56.4 83%
1/2" 12.5 118.4 64%
3/8" 9.50 123.1 63%
#4 4.75 171.3 48%
#10 2.00 203.8 39%
#20 0.825 217.2 35%
#40 0.425 230.1 31%
#60 0.250 249.8 25%
#100 0.150 268.7 19%
#200 0.075 286.0 14%
Cu = NA Cc = NA
Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
% Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
52 Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
34 Poorly-graded GRAVEL with CLAY and SAND (GP-GC)
% Cobble
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-119 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
5/1/19
AC
R-19-009-1A
Depth (ft): 6
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
30 30 12 15 7
0 6
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 85.5 79%
3/4" 19.0 122.9 70%
1/2" 12.5 159.5 61%
3/8" 9.50 179.6 56%
#4 4.75 241.5 40%
#10 2.00 289.5 28%
#20 0.825 325.8 19%
#40 0.425 352.2 13%
#60 0.250 366.4 9%
#100 0.150 373.8 7%
#200 0.075 380.6 6%
Cu = 42.7 Cc = 1.6
Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
34 Well-graded GRAVEL with CLAY and SAND (GW-GC)
% Cobble % Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
60 Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-120 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
6/13/19
GW
A-19-010-Bulk
Depth (ft): 0-5'
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
0 31 16 14 16
0 23
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 0.0 100%
3/4" 19.0 0.0 100%
1/2" 12.5 36.7 90%
3/8" 9.50 53.9 86%
#4 4.75 116.9 69%
#10 2.00 176.9 53%
#20 0.825 209.6 44%
#40 0.425 228.8 39%
#60 0.250 245.9 34%
#100 0.150 268.7 28%
#200 0.075 289.0 23%
Cu = NA Cc = NA
Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
% Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
31 Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
46 CLAYEY SAND With GRAVEL (SC)
% Cobble
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-121 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
5/1/19
AC
A-19-012-1A
Depth (ft): 6
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
5 21 10 13 29
0 22
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 0.0 100%
3/4" 19.0 14.6 95%
1/2" 12.5 35.4 88%
3/8" 9.50 47.1 84%
#4 4.75 76.1 74%
#10 2.00 104.3 64%
#20 0.825 124.6 57%
#40 0.425 144.1 51%
#60 0.250 176.4 39%
#100 0.150 203.8 30%
#200 0.075 226.7 22%
Cu = NA Cc = NA
Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
52 CLAYEY SAND with GRAVEL (SC)
% Cobble % Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
26 Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-122 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
5/1/19
AC
A-19-014-1A
Depth (ft): 3.5
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
27 27 8 9 15
0 14
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 99.5 76%
3/4" 19.0 114.9 73%
1/2" 12.5 176.8 58%
3/8" 9.50 193.1 54%
#4 4.75 228.1 46%
#10 2.00 261.2 38%
#20 0.825 281.0 33%
#40 0.425 298.6 29%
#60 0.250 320.3 24%
#100 0.150 340.1 19%
#200 0.075 361.0 14%
Cu = NA Cc = NA
Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
% Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
54 Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
32 Poorly-graded GRAVEL with CLAY and SAND (GP-GC)
% Cobble
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-123 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
6/4/19
GW
R-19-017-1A
Depth (ft): 21
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
0 36 17 12 16
0 19
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 0.0 100%
3/4" 19.0 0.0 100%
1/2" 12.5 18.0 91%
3/8" 9.50 34.4 83%
#4 4.75 71.5 64%
#10 2.00 105.9 47%
#20 0.825 121.2 40%
#40 0.425 129.5 35%
#60 0.250 140.6 30%
#100 0.150 151.3 25%
#200 0.075 162.8 19%
Cu = NA Cc = NA
Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
% Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
36 Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
45 SILTY SAND with GRAVEL (SM)
% Cobble
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-124 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
4/19/19
CAP
R-19-024-1A
Depth (ft): 6
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
0 10 3 8 24
0 55
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 0.0 100%
3/4" 19.0 0.0 100%
1/2" 12.5 9.4 96%
3/8" 9.50 9.4 96%
#4 4.75 22.7 90%
#10 2.00 30.5 87%
#20 0.825 38.5 83%
#40 0.425 48.4 79%
#60 0.250 62.8 72%
#100 0.150 79.3 65%
#200 0.075 101.0 55%
Cu = NA Cc = NA
Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
% Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
10 Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
35 SANDY lean CLAY (CL)
% Cobble
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-125 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
6/6/19
CAP
A-19-023-4A
Depth (ft): 11
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
35 32 11 8 7
0 7
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 37.1 84%
3/4" 19.0 83.3 65%
1/2" 12.5 103.3 56%
3/8" 9.50 124.1 47%
#4 4.75 156.7 33%
#10 2.00 182.6 22%
#20 0.825 193.5 18%
#40 0.425 201.1 14%
#60 0.250 209.4 11%
#100 0.150 214.9 9%
#200 0.075 219.6 7%
Cu = 72.8 Cc = 4.7
Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
26 Poorly-graded GRAVEL with CLAY and SAND (GP-GM)
% Cobble % Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
67 Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-126 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
6/4/19
CAP
A-19-022-1A
Depth (ft): 6
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
0 19 7 15 30
0 29
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 0.0 100%
3/4" 19.0 0.0 100%
1/2" 12.5 0.0 100%
3/8" 9.50 20.2 89%
#4 4.75 33.9 81%
#10 2.00 47.8 74%
#20 0.825 64.3 65%
#40 0.425 74.8 59%
#60 0.250 91.4 50%
#100 0.150 110.3 39%
#200 0.075 129.5 29%
Cu = NA Cc = NA
Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
52 CLAYEY SAND with GRAVEL (SC)
% Cobble % Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
19 Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-127 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
1/18/21
MCC
A-20-001-11A
Depth (ft): 46
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
0 9 6 10 25
0 50
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 0.0 100%
3/4" 19.0 0.0 100%
1/2" 12.5 3.2 99%
3/8" 9.50 9.9 97%
#4 4.75 27.2 91%
#10 2.00 47.9 85%
#20 0.825 65.1 79%
#40 0.425 80.0 75%
#60 0.250 107.0 66%
#100 0.150 132.9 58%
#200 0.075 158.5 50%
Cu = NA Cc = NA
Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
% Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
9 Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
41 SANDY lean CLAY (CL)
% Cobble
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-128 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
1/4/21
MCC
R-20-002-6A
Depth (ft): 21
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
7 27 15 20 15
0 16
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 0.0 100%
3/4" 19.0 27.7 93%
1/2" 12.5 62.5 85%
3/8" 9.50 83.4 80%
#4 4.75 141.2 66%
#10 2.00 204.3 51%
#20 0.825 255.3 39%
#40 0.425 289.9 31%
#60 0.250 316.2 24%
#100 0.150 333.7 20%
#200 0.075 349.8 16%
Cu = NA Cc = NA
Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
% Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
34 Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
50 CLAYEY SAND with GRAVEL (SC)
% Cobble
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-129 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
1/4/21
MCC
R-20-003-4A
Depth (ft): 11
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
5 18 7 7 37
0 26
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 0.0 100%
3/4" 19.0 20.2 95%
1/2" 12.5 44.8 90%
3/8" 9.50 61.8 86%
#4 4.75 99.0 77%
#10 2.00 126.5 70%
#20 0.825 140.5 67%
#40 0.425 158.0 63%
#60 0.250 200.9 53%
#100 0.150 259.9 39%
#200 0.075 314.6 26%
Cu = NA Cc = NA D50 = 0.23
Sand
Coarse
Medium
Fine
Coefficient of Uniformity Coefficient of Curvature 50% of Cumulative Mass Cobbles
Gravel
Coarse
Fine
Sieve #
ASTM 6913 - Method A
% Cobble % Gravel % Sand
23 51
Technician:

Sample ID:

USCS Classification: SILTY SAND with GRAVEL (SM)
Project Name:

CAInc File No:

Date:
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-130 8660F10 April 2023

Ukiah Recycled Water Pipeline - Phase 4
19-503.1
1/5/21
MCC
R-20-003-6A
Depth (ft): 20.5
% Fines
Coarse Fine Coarse Medium Fine Silt/Clay
37 24 9 8 10
0 12
Opening Cummulative % Passing
mm Mass Retained (g) %
3" 75 0.0 100%
2" 50 0.0 100%
1-1/2" 37.5 0.0 100%
1" 25.0 155.2 68%
3/4" 19.0 183.7 63%
1/2" 12.5 219.9 55%
3/8" 9.50 243.7 50%
#4 4.75 298.1 39%
#10 2.00 343.6 30%
#20 0.825 367.7 25%
#40 0.425 385.5 22%
#60 0.250 402.0 18%
#100 0.150 414.7 16%
#200 0.075 429.8 12%
Cu = NA Cc = NA
Gravel
Coarse
Fine
Sand
Coarse
Medium
Fine
% Gravel % Sand
ASTM 6913 - Method A
Sieve #
Cobbles
61 Coefficient of Uniformity Coefficient of Curvature
Project Name:

Technician:

CAInc File No:

Date:

Sample ID:

USCS Classification:
27 CLAYEY GRAVEL with SAND (GC)
% Cobble
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01
Percent Passing by Weight
Grain Size (mm)
Particle Size Distribution
DRAFT Appendix C-131 8660F10 April 2023

Initial Conditions at Start of Test
Sample ID (psf)
Shear Test Conditions
, degrees 31.0
c, psf 500
Project:

Location:

Number:

Figure:

Boring Number
Material Description
Height (inch)
Sample Depth (feet) 10.5-11
R-19-024
Strong brown Sandy lean CLAY

1.00 Saturation (%)
Strain Rate (%/min)
Fax: (916) 852-9132
Telephone: (916) 852-9118 S9763-05-158

0.256
3160 Gold Valley Drive, Suite 800
Major Principle Stress at Failure (psf)
Ukiah, CA
Moisture Content (%)

0.317
1749
Dry Density (pcf)
Ukiah Recycled Water Pipe
2851

6.77 2.75

94.0 2.75

98.3 Sample Description
Test Results
Geocon Consultants, Inc.

Rancho Cordova, California 95742
Diameter (inch)

0.313
1034

2.80 97.7
Direct Shear Strength Test (ASTM D3080)
Strain at Failure (%) 7.19 6.77
Estimated Specific Gravity

20.4 109.2

2.363

16.9 117.7

1.00 2.363

1.00 17.8
1000 2000 4000
112.8

2.363

0.0 0.5

1.0 1.5

2.0 2.5

3.0 3.5

4.0 4.5

5.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0
Shear Stress (ksf)
Normal Stress (ksf)

SHEAR STRENGTH
0 500
1000
1500
2000
2500
3000
0 2 4 6 8 10
Shear Stress, psf
Shear Strain, %

STRESS-STRAIN
DRAFT Appendix C-132 8660F10 April 2023

Tested By: MR Checked By: MR
GEOCON CONSULTANTS, INC.

Client:

Project:

Project No.: Figure
Crawford and Associates
Ukiah Recycled Water Pipeline Ph. 4
S9763-05-158
SOURCE

NATURAL

USCS SAMPLE DEPTH WATER PLASTIC LIQUID PLASTICITY
NO. CONTENT LIMIT LIMIT INDEX
(%) (%) (%) (%)

SOIL DATA

PLASTICITY INDEX
0 10
20 30
40 50
60 LIQUID LIMIT
0 10 20 30 40 50 60 70 80 90 100 110
CL-ML
CL or OL
CH or OH
ML or OL MH or OH
Dashed line indicates the approximate
upper limit boundary for natural soils
4 7

LIQUID AND PLASTIC LIMITS TEST REPORT
R-19-001-2A 7.5-8 17 30 13
R-19-004-
Bulk 1
0-5 14 25 11
A-19-008-1A 5.5-6 15 23 8
A-19-011-1A 6-6.5 23 35 12
A-19-013-1A 3.5-4 18 29 11
A-19-015-2A 6-6.5 15 23 8
A-19-018-1A 3.5-4 17 33 16
R-19-024-1 10.5-11 17 28 11
DRAFT Appendix C-133 8660F10 April 2023

Project Name:

CAInc File No: 19-503.1
Date: 1/13/21
Technician: MCC/MNA
Sample ID Depth (ft) Liquid Limit Plastic Limit PI
A-20-001-3B 8.0 32 17 15
R-20-002-2A 5.5 32 18 14
R-20-003-2A 6.0 33 17 16
Plastic Index - ASTM D4318
Ukiah Recycled Water Pipeline - Phase 4
0 10
20 30
40 50
60 0 10 20 30 40 50 60 70 80 90 100
Plasticity Index (PI)
Liquid Limit (LL)
Plasticity Chart
A-20-001-3B
R-20-002-2A
R-20-003-2A CL or OL
CH or OH
ML or OL
MH or OH
"U" Line
"A" Line
CL-ML
DRAFT Appendix C-134 8660F10 April 2023

Sample ID & Description
Boring Number
Sample Depth (feet)
Material Description
Test Data
Specimen 2100 2071 2105
Exudation Pressure (psi) 350 255 305
Expansion Dial (.0001") 10 0 0
Expansion Pressure (psf) 43.3 0.0 0.0
Resistance 'R' Value 27 12 22
Moisture at test (%) 8.3 9.2 8.8
Dry density at test (pcf) 133.3 128.2 132.1
R Value at 300 psi exudation pressure
R Value by expansion pressure (TI=7.0)
R Value by Equillibrium
Geocon Consultants, Inc.
3160 Gold Valley Drive, Suite 800 Project:

Rancho Cordova, California 95742 Location:

Telephone: (916) 852-9118 Number:

Fax: (916) 852-9132 Figure:

R-19-004-Bulk 1
21 35
0-5
Very dark gray Sandy Lean CLAY with gravel
Resistance "R" Value, ASTM D2844, CTM 301
Ukiah Recycled Water Pipeline
Ukiah, CA
S9763-05-158
21 0
10 20
30 40
50 60
70 80
90 100
0 100 200 300 400 500 600 700 800
R Value
Exudation Pressure (psi)
R Value vs Exudation Pressure
DRAFT Appendix C-135 8660F10 April 2023

Sample ID & Description
Boring Number
Sample Depth (feet)
Material Description
Test Data
Specimen 2091 2069 2111
Exudation Pressure (psi) 150 300 350
Expansion Dial (.0001") 0 0 0
Expansion Pressure (psf) 0.0 0.0 0.0
Resistance 'R' Value 15 35 48
Moisture at test (%) 12.5 11.6 11
Dry density at test (pcf) 120.3 122.6 122.3
R Value at 300 psi exudation pressure
R Value by expansion pressure (TI=7.0)
R Value by Equillibrium
Geocon Consultants, Inc.
3160 Gold Valley Drive, Suite 800 Project:

Rancho Cordova, California 95742 Location:

Telephone: (916) 852-9118 Number:

Fax: (916) 852-9132 Figure:

A-19-022-Bulk 1
35 --
0-5
Browm Sandy Lean CLAY with gravel
Resistance "R" Value, ASTM D2844, CTM 301
Ukiah Recycled Water Pipeline
Ukiah, CA
S9763-05-158
35 0
10 20
30 40
50 60
70 80
90 100
0 100 200 300 400 500 600 700 800
R Value
Exudation Pressure (psi)
R Value vs Exudation Pressure
DRAFT Appendix C-136 8660F10 April 2023

DRAFT Appendix C-137 8660F10 April 2023

DRAFT Appendix C-138 8660F10 April 2023

DRAFT Appendix C-139 8660F10 April 2023

DRAFT Appendix C-140 8660F10 April 2023

Appendix C-141 8660F10 April 2023 Page 3030 of 3073
Appendix C-142 8660F10 April 2023 Page 3031 of 3073
DRAFT GEOTECHNICAL REPORT Crawford
City of Ukiah Recycled Water Pipeline – Phase 4 Design Project File: 19-503.1 Ukiah, California August 20, 2021

APPENDIX IV
Site-Specific Hazard Analysis
DRAFT Appendix C-143 8660F10 April 2023

Appendix C-144 8660F10 April 2023

Appendix IV
SITE-SPECIFIC HARZARD MEMORANDUM Crawford
City of Ukiah Recycled Water Pipeline Project File: 19-503.1 Ukiah, California August 30, 2021
1 APPENDIX IV

DRAFT SITE-SPECIFIC HAZARD MEMORANDUM

CITY OF UKIAH RECYCLED WATER PIPELINE

UKIAH, CALIFORNIA
1 INTRODUCTION
Crawford drilled three boring (R-19-009, R-19-017 and R-19-021) in 2019 in the vicinity of the proposed tank and pump station in the Ukiah water treatment plant. Crawford completed a sitespecific hazard analysis for compliancy with ASCE 7-16 and 2019 CBC. 2 SITE SPECIFIC ANALYSIS
The following sections describe the site-specific ground motion analysis performed in accordance with ASCE 7-16 (with Supplement 1) and 2019 CBC.

2.1 INITIAL SEISMIC HAZARD ANALYSIS

2.1.1 SEISMIC DESIGN CRITERIA
Seismic design criteria are included in Section 11 of ASCE 7-16 (Sections referenced hereafter refer to ASCE 7-16), including mapped acceleration parameters. These mapped parameters are available online through the SEAOC/OSHPD1 Seismic Design website, which interpolates values from the ASCE 7-16 maps using the site location.

2.1.2 SITE CLASS AND RISK CATEGORY
The site was classified as Site Class F according to Section 20.3.13 due to the potentially liquefiable soils. The shear wave velocity of 290 meters per second (m/s) in the upper 30 meters or 100 feet (VS30) used for the site was developed from 2019 boring data. Crawford used correlations with SPT blow count N-values corrected for hammer efficiency. The Risk Category for the structure was assumed to be IV.

2.1.3 MAPPED ACCELERATION PARAMETERS
Crawford accessed the SEAOC/OSHPD Seismic Design Map website considering the site location latitude 39.1595°N and longitude 123.1949°W, Site Class F, and Risk Category IV to determine the Mapped Maximum Considered Earthquake (MCE) Spectral Response Short Period (SS), Mapped MCE Spectral Response at 1 second period (S1), Long Period (TL), and mapped risked coefficients (CRS and CR1). The SS, S1, TL, CRS, and CR1 are coordinate specific and are taken from ASCE 7-16 figures independently of site class. The mapped acceleration parameters are based on an MCE which is roughly equivalent to an earthquake with a 2% chance of exceedance in 50 years (2,475-year return period). Due to the site class F designation and a S1, > 0.2, a site-specific analysis is required according to Section 11.4.8 for the acceleration parameters. Table 1 summarizes the mapped acceleration parameters. 1 https://seismicmaps.org
DRAFT Appendix C-145 8660F10 April 2023

Appendix IV
SITE-SPECIFIC HARZARD MEMORANDUM Crawford
City of Ukiah Recycled Water Pipeline Project File: 19-503.1 Ukiah, California August 30, 2021
2 Table 1: Mapped Acceleration Parameters
Mapped Acceleration Parameter Value Source
Mapped MCER Spectral Response Short Period (SS) 2.129 Figure 21-1 Mapped MCER Spectral Response at 1 Second Period (S1) 0.821 Figure 21-2 Long Period (TL) 8 Figure 21-14
Mapped Risk Coefficient at Short Period (CRS) 0.881 Figure 22-17 Mapped Risk Coefficient at 1 Second Period (CR1) 0.875 Figure 22-18

2.2 HORIZONTAL GROUND MOTION HAZARD ANALYSIS
A ground motion hazard analysis accounts for the regional tectonic setting, geology, and seismicity of a specific site as well as the expected recurrence of the maximum magnitudes of the earthquakes on known faults and source zones, considering ground motion attenuation and near source effects. The methodology included in ASCE 7-16 was used to determine the site-specific ground motions of the project site, generally consisting of the following steps:
• Determine the probabilistic MCE ground motions
• Determine the deterministic MCE ground motions
• Adjust MCE ground motions to maximum horizontal response • Adjust probabilistic MCE ground motions to risk-targeted maximum considered earthquake ground motions (MCER)
• Compare and scale the site-specific deterministic MCE ground motion with minimum spectral responses to ASCE 7-16 Supplement 1 Section 21.2.2 • Compare the deterministic ground motion to the probabilistic ground motion to determine the site-specific MCER ground motion (lower of the two at each period) • Calculate design spectral response ground motion (2/3 of MCER) • Compare the Section 21.2 design spectral response ground motion to the Section

11.4.6 design spectral response ground motion (cannot be lower than 80% Section

11.4.6 design spectral response ground motion)
• Determine the design spectral response spectrum and design acceleration parameters
• Calculate peak ground acceleration (PGAM)

2.2.1 GROUND MOTION HAZARD ANALYSIS
Crawford performed a seismic hazard analyses and site response analyses using EZ-FRISK software Version 8.07. Crawford used the following next generation attenuation relationships (NGA) all equally weighted for the nearby strike-slip and reverse faults:
• Boore-et al (2014)
• Campbell and Bozorgnia (2014)
• Chiou and Youngs (2014)
DRAFT Appendix C-146 8660F10 April 2023

Appendix IV
SITE-SPECIFIC HARZARD MEMORANDUM Crawford
City of Ukiah Recycled Water Pipeline Project File: 19-503.1 Ukiah, California August 30, 2021
3 The following parameters were common to all analyses for each of the attenuation relationships:
• The VS30 of the site of 290 m/s
• Depth to soil with a VS of 1,000 m/s was calculated to be 320 meters based on the methodology proposed by Chiou and Youngs (2008)
• Depth to soil with a VS of 2,500 m/s was calculated to be 1.7 kilometers based on the methodology proposed by Campbell and Bozorgnia (2008)

2.2.2 PROBABILISTIC MCER GROUND MOTION
Seismic sources within 200 kilometers were used to determine the site-specific ground motions.

The NGA analyses considered the following faults in Table 2.

Table 2: Summary of Seismic Sources
Attenuation
Relationship
Type
Source Distance
(km)
Maximum
Magnitude Mechanism
Dip
Angle
(degree)
Dips
Direction
Site
Lies
NGA
California Gridded 0.00 7.0 SS|R 90 -- Above
MaacamaGarberville 2.49 7.4 Strike Slip 90 -- SW
Collayomi 34.14 6.7 Strike Slip 90 -- NW
Bartlett Springs 35.65 7.3 Strike Slip SW
Northern San
Andreas 44.74 8.1 Strike Slip 90 -- NE
Hunting CreekBerryessa 64.72 7.1 Strike Slip 90 -- NW
Great Valley 3,
Mysterious Ridge 68.37 7.1 Reverse 20 SW W
Great Valley 2 69.10 6.5 Reverse 15 W W
Great Valley 1 71.03 6.8 Reverse 15 W W
Hayward-Rogers
Creek 73.89 7.3 Strike Slip 90 -- NW
Mendocino
Gridded, Reverse 83.28 7.3 Reverse 90 -- SE
Mendocino
Gridded, Strike Slip 83.28 7.3 Reverse 90 -- SE
Great Valley 4a,
Trout Creek 102.19 6.6 Reverse 20 SW NW
Point Reyes 104.39 6.9 Reverse 50 NE N
West Napa 109.73 6.7 Strike Slip 90 -- NW
Great Valley 4b,
Gordon Valley 112.91 6.8 Reverse 20 W NW
Green Valley
Connected 23.40 6.8 Strike Slip 90 -- NW
DRAFT Appendix C-147 8660F10 April 2023

Appendix IV
SITE-SPECIFIC HARZARD MEMORANDUM Crawford
City of Ukiah Recycled Water Pipeline Project File: 19-503.1 Ukiah, California August 30, 2021
4 Attenuation
Relationship
Type
Source Distance
(km)
Maximum
Magnitude Mechanism
Dip
Angle
(degree)
Dips
Direction
Site
Lies
NGA
Shear 1 Gridded 135.98 7.6 Strike Slip 90 -- SW
Great Valley 5,
Pittsburg Kirby Hills 144.05 6.7 Strike Slip 90 -- NW
Battle Creek 161.45 6.7 Normal 75 S SW
San Gregorio
Connected 162.65 7.5 Strike Slip 90 -- N
Little Salmon
(Onshore) 167.10 7.1 Reverse 30 NE SE
Little Salmon
Connected 167.10 7.5 Reverse 30 NE SE
Mount Diablo
Thrust 172.91 6.7 Reverse 38 NE NW
Calaveras 181.38 7.0 Strike Slip 90 -- NW
Greenville
Connected 184.76 7.0 Strike Slip 90 -- NW
Greenville
Connected U 184.76 7.0 Strike Slip 90 -- NW
Table Bluff 185.45 7.2 Reverse 45 NE SE
McKinleyville 186.43 7.2 Reverse 35 NE S
Shear 2 Gridded 186.76 7.6 Strike Slip 90 -- SW
Mad River 187.02 7.2 Strike Slip 35 NE S
Fickle Hill 187.86 7.1 Reverse 35 NE S
Trinidad 189.33 7.5 Reverse 35 NE S
Shear 3 Gridded 189.74 7.6 Strike Slip 90 -- SW
Little Salmon
(Offshore) 198.92 7.3 Reverse 30 NE SE
EZ-FRISK software was used to determine geometric mean spectral response acceleration predicted using NGA from a 5% damped response spectrum with a 2% in 50-year exceedance probability. Crawford scaled the NGA geometric mean spectral response to the maximum rotated spectral using the scale factors in Section 21.1.

A. RISK COEFFICIENTS
Method 1 of Section 21.2 was used to determine the probabilistic MCER ground motion Mapped risk coefficients (CRS and CR1) were used to adjust the response accelerations to a 1% chance of collapse in 50 years per Section 21.2.1.1. The risk coefficients are summarized in Table 1, along with the source figure from ASCE 7-16.

DRAFT Appendix C-148 8660F10 April 2023

Appendix IV
SITE-SPECIFIC HARZARD MEMORANDUM Crawford
City of Ukiah Recycled Water Pipeline Project File: 19-503.1 Ukiah, California August 30, 2021
5 CRS was applied to accelerations at spectral periods less than or equal to 0.2 seconds. CR1 was applied accelerations at spectral periods greater than or equal to 1 second. For spectral periods between 0.2 and 1 seconds, the CR value was linearly interpolated.

B. PROBABILISTIC MCER GROUND MOTION
Figure 1 shows the geometric mean spectral response for the 2% in 50-year event developed using EZ-FRISK for each of the attenuation relationships described above. Also shown is the risk-adjusted response spectrum adjusting the response to a 1% in 50-year probability of collapse, which is equivalent to the site-specific probabilistic ground motion MCER.

2.2.3 DETERMINISTIC MCER GROUND MOTION
The deterministic spectral response acceleration is defined as the 84th-percentile 5% damped spectral response in the direction of maximum horizontal response for the characteristic earthquake on all known active faults within the region. EZ-FRISK was used to calculate the deterministic ground motion per Section 21.2.2. The NGA controlled deterministic spectral response was taken as the largest amplitude of ground motion considering all sources using the weighted mean of NGA attenuation relationships stated in Section 2.2.1 of this memorandum.

Crawford scaled the deterministic 84th-percentile 5% damped spectral response to the maximum rotated spectral using the scale factors in Section 21.1. The controlling seismic source for the project site is the Maacama-Garberville fault. Figure 2 shows the 84th-percentile 5% damped spectral response for the NGA attenuation relationships.

DETERMINISTIC MCER GROUND MOTION SCALING
Per ASCE 7-16 Supplement 1 Section 21.2.2, the maximum deterministic spectral response was compared with the minimum peak acceleration of 1.5Fa with Fa = 1 for Site Class E. Our maximum spectral response was 2.5g, therefore, no scaling of the deterministic curve was required. Figure 3 shows our deterministic ground motions compared to the minimum peak spectral accelerations.

2.2.4 SITE-SPECIFIC SPECTRAL RESPONSE ACCELERATION MCER The site-specific spectral response acceleration is defined as the lower of the probabilistic and deterministic ground motions in Section 21.2.3. For the project site, the deterministic ground motion was lower for periods (0 to 3 seconds) and the probabilistic ground motion was lower for all periods (4 to 10 seconds). The site-specific spectral response acceleration (MCER) is shown on Figure 4.

2.2.5 DESIGN RESPONSE SPECTRUM
The design response spectrum is defined in Section 21.3 as the higher of two values:
• Two-thirds of the site-specific design spectral response acceleration per Section 21.2 • 80% of the design spectral response acceleration per Section 11.4.6 where Fa is calculated in Table 11.4-1 and Fv = 4 for S1 > 0.2 for Site Class E Crawford first calculated the design spectral response acceleration by taking 2/3 of the sitespecific response acceleration MCER as shown in Figure 5.

DRAFT Appendix C-149 8660F10 April 2023

Appendix IV
SITE-SPECIFIC HARZARD MEMORANDUM Crawford
City of Ukiah Recycled Water Pipeline Project File: 19-503.1 Ukiah, California August 30, 2021
6 Crawford then calculated the design response accelerations per Section 11.4.6 with Fa = 1.0 and Fv = 4 and reduced the spectral accelerations by 80% to adjust for the minimum design spectral accelerations for Site Class E. We reduced the spectral accelerations by 80% again to adjust for the minimum design spectral accelerations for a Site Class F per Section 21.3. We then compared Section 11.4.6 design spectral accelerations for Site Class F with our site-specific design spectral response accelerations (Figure 6). The site-specific design spectral response accelerations controlled at periods below approximately 3.5 seconds and the minimum design spectral accelerations for Site Class F controlled from approximately 3.5 to 10 seconds.

The design response spectrum is shown on Figure 6 and Table 3.

Table 3: Design Response Spectrum
Period, s Sa, g

0.05 0.78

0.1 1.04

0.2 1.31

0.3 1.51

0.4 1.60

0.5 1.65

0.75 1.52

1.0 1.36

2.0 0.74

3.0 0.49

4.0 0.35

5.0 0.28

6.0 0.23

7.0 0.20

8.0 0.18

10.0 0.11

2.2.6 DESIGN ACCELERATION PARAMETERS
Design acceleration parameters were calculated in accordance with Section 21.4. The SDS value was taken as 90% the peak spectral acceleration value from periods 0.2 to 5 seconds. The SD1 value was taken as the maximum product of T*Sa (period * spectral acceleration) from periods 1 to 5 seconds. Per Section 21.4, the SDS and SD1 values cannot be less than 80% of the SDS and SD1 calculated from Section 11.4.5. The SDS and SD1 values in Section 11.4.5 were calculated from using Fa = 1.0 and Fv = 4.0 for a Site Class E, as given in Section 21.3. The Section 11.4.5 DRAFT Appendix C-150 8660F10 April 2023

Appendix IV
SITE-SPECIFIC HARZARD MEMORANDUM Crawford
City of Ukiah Recycled Water Pipeline Project File: 19-503.1 Ukiah, California August 30, 2021
7 SDS and SD1 values were reduced by 80% again to convert to Site Class F values for comparison per Section 21.3.

SMS and SM1 were calculated as 1.5 times SDS and SD1, respectively. Per Section 21.4, the SMS and SM1 values cannot be less than 80% of the SMS and SM1 calculated from Section 11.4.3. The SMS and SM1 values in Section 11.4.3 was calculated from using Fa = 1.0 and Fv = 4.0 for a Site Class E, as given in Section 21.3. The Section 11.4.3 SMS and SM1 were reduced by 80% again to convert to Site Class F values per Section 21.3.

The design acceleration parameters are summarized in Table 4.

Table 4: Preliminary Horizontal Site-Specific Spectral Accelerations Design Acceleration Parameter Value (g)
Design Spectral Acceleration for Short Period (SDS) 1.48 Design Spectral Acceleration for 1 Second Period (SD1) 1.58 MCE Spectral Response Acceleration for Short Period (SMS) 2.22 MCE Spectral Response Acceleration for 1 Second Period (SM1) 2.37

2.2.7 MAXIMUM CONSIDERED EARTHQUAKE MCEG PEAK GROUND

ACCELERATION (PGA)
A. PROBABILISTIC MCEG PGA
Per Section 21.5.1, the probabilistic geometric mean PGA shall be taken as geometric mean peak ground acceleration with a 2% probability of exceedance within a 50-year period. The probabilistic MCEG PGA is 1.14g.

B. DETERMINISTIC MCEG PGA
Per Section 21.5.2, the deterministic geometric mean PGA shall be taken as the largest 84thpercentile geometric mean peak PGA but not lower than 0.5*FPGA where FPGA is determined using ASCE 7-16 Table 11.8-1 and PGA is taken as 0.5g. Table 11.8-1 does not include FPGA values for Site Class F, therefore, the deterministic MCEG PGA was taken as the 84th percentile geometric mean PGA., therefore, the deterministic MCEG PGA was taken as 0.90g.

C. SITE-SPECIFIC MCEG PGA
The site-specific MCEG PGA (PGAM) taken as the lesser of the probabilistic MCEG PGA and deterministic MCEG PGA but not less than 80% of the PGAM determined from Equation 11.8-1 in ASCE 7-16. Since there are no FPGA values for Site Class F, the site-specific PGAM was taken as

0.90g.

DRAFT Appendix C-151 8660F10 April 2023

Appendix C-152 8660F10 April 2023

Appendix IV
SITE-SPECIFIC HARZARD MEMORANDUM Crawford
City of Ukiah Recycled Water Pipeline Project File: 19-503.1 Ukiah, California August 30, 2021
8 ATTACHMENTS
Figure 1: Probabilistic Response Spectra
Figure 2: Deterministic Response Spectra
Figure 3: Site-Specific Deterministic MCER Spectrum
Figure 4: Risk Targeted Maximum Considered Earthquake (MCER) Figure 5: Risk Targeted MCER vs. Design Response Spectrum Figure 6: Design Response Spectrum
DRAFT Appendix C-153 8660F10 April 2023

Appendix C-154 8660F10 April 2023

Proj. No: 19-503.1
Scale:

Date:

CITY OF UKIAH RECYCLED WATER

PIPELINE

UKIAH, CALIFORNIA
Figure 1
Probabilistic
Response Spectra
Notes:

N/A
07/29/21
DRAFT Appendix C-155 8660F10 April 2023

Proj. No: 19-503.1
Scale:

Date:

CITY OF UKIAH RECYCLED WATER

PIPELINE

UKIAH, CALIFORNIA
Figure 2
Deterministic
Response Spectra
Notes:

N/A
07/29/21
DRAFT Appendix C-156 8660F10 April 2023

Proj. No: 19-503.1
Scale:

Date:

CITY OF UKIAH RECYCLED WATER

PIPELINE

UKIAH, CALIFORNIA
Figure 3
Site-Specific
Deterministic MCEr
Spectrum
Notes:

N/A
07/29/21
DRAFT Appendix C-157 8660F10 April 2023

Proj. No: 19-503.1
Scale:

Date:

CITY OF UKIAH RECYCLED WATER

PIPELINE

UKIAH, CALIFORNIA
Figure 4
Risk Targeted
Maximum Considered
Earthquake (MCEr)
Notes:

N/A
07/29/21
DRAFT Appendix C-158 8660F10 April 2023

Proj. No: 19-503.1
Scale:

Date:

CITY OF UKIAH RECYCLED WATER

PIPELINE

UKIAH, CALIFORNIA
Figure 5
Risk Targeted MCEr
vs. Design Response
Spectrum
Notes:

Based on ASCE 7-16 Section 21.2
N/A
07/29/21
DRAFT Appendix C-159 8660F10 April 2023

Proj. No: 19-503.1
Scale:

Date:

CITY OF UKIAH RECYCLED WATER

PIPELINE

UKIAH, CALIFORNIA
Figure 6
Design Spectral
Response
Notes:

N/A
07/29/21
DRAFT Appendix C-160 8660F10 April 2023

DRAFT GEOTECHNICAL REPORT Crawford
City of Ukiah Recycled Water Pipeline – Phase 4 Design Project File: 19-503.1 Ukiah, California August 20, 2021

APPENDIX V
Settle 3D Results
CIDH Nominal Resistance Graphs
LPILE Output Graphs
DRAFT Appendix C-161 8660F10 April 2023

Appendix C-162 8660F10 April 2023

1.7 0.87
Material Name Color
Unit
Weight
(kips/ft3)
Es
(ksf)
Poorly-graded Sand (SP) and Clayey Gravel (GC) 0.125 310 Poorly-graded Gravel with varying amounts of Clay
(GP/GP-GC) 0.13 760
Poorly-graded Sand (SP) 0.13 890 100 50 0 -50
-50 -25 0 25 50 75
Total Settlement
(in)

0.00 0.18

0.36 0.54

0.72 0.90

1.08 1.26

1.44 1.62

1.80 max (stage): 1.70 in
max (all): 1.70 in
Analysis Description
120 foot diameter, concrete
Company Crawford Drawn By HFW
File Name ukiah tank R-19-021.s3z Date 8/20/21
Project
19-503.1: Ukiah Recycled Water Pipeline
SETTLE3D 3.020
DRAFT Appendix C-163 8660F10 April 2023

1.67 0.85
Material Name Color
Unit
Weight
(kips/ft3)
Es
(ksf)
Silty Sand (SM) 0.13 560
Poorly-graded Sand with Silt (SP-SM) 0.14 460
Clayey Sand (SC) 0.13 670
Poorly-graded Gravel with Clay (GP-GC) 0.13 1460 100 50 0 -50 -100 -50 0 50 100
Total Settlement
(in)

0.00 0.17

0.34 0.51

0.68 0.85

1.02 1.19

1.36 1.53

1.70 max (stage): 1.68 in
max (all): 1.68 in
Analysis Description
120 foot diameter, concrete
Company Crawford Drawn By HFW
File Name ukiah tank R-19-017.s3z Date 8/20/21
Project
19-503.1: Ukiah Recycled Water Pipeline
SETTLE3D 3.020
DRAFT Appendix C-164 8660F10 April 2023

CAST-IN-DRILLED-HOLE (CIDH) PILE NOMINAL RESISTANCE IN SIDE FRICTION Ukiah Recycled Water Pipeline - Bridge Location
Ukiah, CA
CAInc Project Number: 19-503.1
Support Location(s): Abutment 1 and 2 Pile Diameter = 36 inches Pile Cut-Off Elevation = 633.75 feet Boring(s): R-20-003 Socket Diameter = NA Permanent Casing Tip Elevation = NA

SERVICE LIMIT STRENGTH LIMIT EXTREME LIMIT
REQUIRED NOMINAL RESISTANCE = NA kips REQUIRED NOMINAL RESISTANCE = 70 kips REQUIRED NOMINAL RESISTANCE = NA kips SCOUR ELEVATION = 620.0 feet SCOUR ELEVATION = 621.0 feet SCOUR ELEVATION = 622.0 feet DESIGN PILE TIP ELEVATION = NA feet DESIGN PILE TIP ELEVATION = 579.0 feet DESIGN PILE TIP ELEVATION = NA feet CIDH Pile Nominal Side Resistance calculated consistent with 2017 8th Edition AASHTO LRFD Bridge Design Specifications with California Amendments. No End Bearing Contribution.

July 30, 2021
550.0
555.0
560.0
565.0
570.0
575.0
580.0
585.0
590.0
595.0
600.0
605.0
610.0
615.0
620.0
625.0
630.0
635.0
640.0
-300 -250 -200 -150 -100 -50 0 50 100 150 200 250 300

ELEVATION (FEET)

NOMINAL RESISTANCE (KIPS)

CIDH PILE NOMINAL RESISTANCE IN SIDE FRICTION
(AXIAL COMPRESSION)
Nominal Side Resistance (No Upper Zone Discount)
Nominal Side Resistance (No Permanent Casing, No Scour) Nominal Side Resistance (Scour Elevation = 621.0 ft, No Casing)
Nominal Side Resistance (With Downdrag)
DRAFT Appendix C-165 8660F10 April 2023

Lateral Pile Deflection (inches)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Longitudinal – P-mult = 0.90 Depth (ft)
-0.05 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
Sand
Lateral Pile Deflection (inches)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Longitudinal – P-mult = 0.90 Depth (ft)
-0.05 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
DRAFT
Sand
Appendix C-166 8660F10 April 2023

Bending Moment (in-kips)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Longitudinal – P-mult = 0.90 Depth (ft)
-4000 -3000 -2000 -1000 0 1000 2000 3000 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
DRAFT
Sand
Appendix C-167 8660F10 April 2023

Shear Force (kips)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Longitudinal – P-mult = 0.90 Depth (ft)
-15 -10 -5 0 5 10 15 20 25 30 35 40
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
Sand
Shear Force (kips)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Longitudinal – P-mult = 0.90 Depth (ft)
-15 -10 -5 0 5 10 15 20 25 30 35 40
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
DRAFT
Sand
Appendix C-168 8660F10 April 2023

Pile Length (ft)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Longitudinal – P-mult = 0.90 Pile-head Deflection (in)
5 10 15 20 25 30 35 40 45

0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7

0.25-inch

0.50-inch
Pile Length (ft)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Longitudinal – P-mult = 0.90 Pile-head Deflection (in)
5 10 15 20 25 30 35 40 45

0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7

0.25-inch

0.50-inch
DRAFT Appendix C-169 8660F10 April 2023

Lateral Pile Deflection (inches)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.75 Depth (ft)
-0.1 -0.05 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
Sand
Lateral Pile Deflection (inches)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.75 Depth (ft)
-0.1 -0.05 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
DRAFT
Sand
Appendix C-170 8660F10 April 2023

Bending Moment (in-kips)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.75 Depth (ft)
-5000 -4000 -3000 -2000 -1000 0 1000 2000 3000
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
Sand
Bending Moment (in-kips)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.75 Depth (ft)
-5000 -4000 -3000 -2000 -1000 0 1000 2000 3000
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
DRAFT
Sand
Appendix C-171 8660F10 April 2023

Shear Force (kips)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.75 Depth (ft)
-15 -10 -5 0 5 10 15 20 25 30 35 40 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
Sand
Shear Force (kips)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.75 Depth (ft)
-15 -10 -5 0 5 10 15 20 25 30 35 40 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
DRAFT
Sand
Appendix C-172 8660F10 April 2023

Pile Length (ft)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.75 Pile-head Deflection (in)
0 5 10 15 20 25 30 35 40 45

0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 0.95 1 1.05 1.1 1.15

0.25-inch

0.50-inch
Pile Length (ft)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.75 Pile-head Deflection (in)
0 5 10 15 20 25 30 35 40 45

0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 0.95 1 1.05 1.1 1.15

0.25-inch

0.50-inch
DRAFT Appendix C-173 8660F10 April 2023

Lateral Pile Deflection (inches)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.55 Depth (ft)
0 0.1 0.2 0.3 0.4 0.5
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
Sand
Lateral Pile Deflection (inches)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.55 Depth (ft)
0 0.1 0.2 0.3 0.4 0.5
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
DRAFT
Sand
Appendix C-174 8660F10 April 2023

Bending Moment (in-kips)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.55 Depth (ft)
-5000 -4000 -3000 -2000 -1000 0 1000 2000 3000 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
Sand
Bending Moment (in-kips)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.55 Depth (ft)
-5000 -4000 -3000 -2000 -1000 0 1000 2000 3000 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
DRAFT
Sand
Appendix C-175 8660F10 April 2023

Shear Force (kips)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.55 Depth (ft)
-15 -10 -5 0 5 10 15 20 25 30 35 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
Sand
Shear Force (kips)
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.55 Depth (ft)
-15 -10 -5 0 5 10 15 20 25 30 35 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44

0.25-inch

0.50-inch
Sand
Sand
Soft Clay
DRAFT
Sand
Appendix C-176 8660F10 April 2023

Pile Length (ft)
Pile-head Deflection (in)
5 10 15 20 25 30 35 40 45

0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4

0.25-inch

0.50-inch
Pile Length (ft)
Pile-head Deflection (in)
5 10 15 20 25 30 35 40 45

0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4

0.25-inch

0.50-inch
19-503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch C 503.1 Ukiah Recycled Water Pipeline – Abut 1 & 2 – 36-inch CIDH Pile – Transverse – P-mult = 0.55 IDH Pile – Transverse – P-mult = 0.55 DRAFT Appendix C-177 8660F10 April 2023

Appendix C-178 8660F10 April 2023

Agenda Item No: 14.a.

MEETING DATE/TIME: 6/21/2023

ITEM NO: 2023-2779

AGENDA SUMMARY REPORT
SUBJECT: Discussion and Possible Action Regarding the Cancellation of the July 5, 2023, Regular City Council Meeting, with the Option for the Mayor and/or City Manager to Call for a Special Meeting on an Alternate Date if Time Sensitive Business Arises.

DEPARTMENT: City Clerk PREPARED BY: Kristine Lawler, City Clerk PRESENTER: Sage Sangiacomo, City Manager
ATTACHMENTS:

None
Summary: Council will consider cancelling the July 5, 2023, Regular City Council meeting to take a summer break from the heavy meeting schedule maintained throughout the rest of the year.

Background: City Council has regular meetings scheduled for the first and third Wednesdays of each month, with a regularly scheduled meeting on July 5, 2023. Council typically cancels a meeting around mid-summer after the budget hearings, as there are typically fewer business items at that time of year, and this gives a break to both the Council and Staff from the heavy meeting schedule maintained throughout the rest of the year.

Discussion: Staff is recommending the cancellation of the July 5, 2023, regular meeting, with the option for the Mayor and/or City Manager to call for a special meeting on an alternate date if time-sensitive business arises.

Recommended Action: Approve the cancellation of the July 5, 2023, Regular City Council Meeting, with the option for the Mayor and/or City Manager to call for a special meeting on an alternate date if time sensitive business arises.

BUDGET AMENDMENT REQUIRED: N/A
CURRENT BUDGET AMOUNT: N/A
PROPOSED BUDGET AMOUNT: N/A
FINANCING SOURCE: N/A
PREVIOUS CONTRACT/PURCHASE ORDER NO.: N/A
COORDINATED WITH: N/A

Agenda Item No: 14.b.

MEETING DATE/TIME: 6/21/2023

ITEM NO: 2023-2810

AGENDA SUMMARY REPORT
SUBJECT: Receive Updates on City Council Committee and Ad Hoc Assignments, and, if Necessary, Consider Modifications to Assignments and/or the Creation/Elimination of Ad Hoc(s).

DEPARTMENT: City Clerk PREPARED BY: Kristine Lawler, City Clerk PRESENTER: Mayor Rodin and Various Councilmembers
ATTACHMENTS:

1. City Council Special Assignments
Summary: City Council members will provide reports and updates on their committee and ad hoc assignments. If necessary, the Council may consider modifications.

Background: City Council members are assigned to a number of committees and ad hoc activities. These assignments are included as Attachment 1.

Discussion: Previously, the City Council discussed having more time allocated to reporting on committee and ad hoc activities. Often, the Council Reports section of the regular agenda is rushed due to impending business (i.e., public hearings), and not enough time is afforded for reports beyond community activities.

In an effort to foster regular updates on committee and ad hoc assignments, this item is being placed on the agenda to provide the City Council members an expanded opportunity to report on assignments and modify assignments as necessary.

Council will consider making an appointment of a Councilmember to sit on the evaluation committee for the Request for Proposal (RFP) for the Internet Service Provider (ISP) Partner for CPUC Last Mile Broadband Grant. The City of Ukiah received a grant to develop a broadband plan for the community and ready the City to apply for infrastructure implementation funding. To ensure readiness, the City will be seeking an ISP and is requesting a member of the Council participate on the evaluation panel as part of a committee assignment for the Broadband Project.

Recommended Action: Receive report(s). The Council will consider modifications to committee and ad hoc assignments along with the creation/elimination ad hoc(s).

BUDGET AMENDMENT REQUIRED: No
CURRENT BUDGET AMOUNT: N/A
PROPOSED BUDGET AMOUNT: N/A
FINANCING SOURCE: N/A
PREVIOUS CONTRACT/PURCHASE ORDER NO.: N/A
COORDINATED WITH: N/A
DIVERSITY-EQUITY INITIATIVES (DEI):

CLIMATE INITIATIVES (CI):

GENERAL PLAN ELEMENTS (GP):

2023 CITY COUNCIL SPECIAL ASSIGNEMENTS

LOCAL / UKIAH VALLEY MTG DATE/TIME MEETING LOCATION MAILING ADDRESS/CONTACT COMMITTEE FUNCTION ASSIGNED TO PRINCIPAL STAFF SUPPORT Investment Oversight Committee Varies
Civic Center
300 Seminary Ave.Ukiah, CA 95482
Civic Center
300 Seminary Ave.Ukiah, CA 95482
Reviews City investments, policies, and strategies
CraneOrozco - Alternate
Alan Carter, Treasurer
Dan Buffalo, Director of Finance; 463-6220
[email protected]
Disaster Council
Shall meet a minimum
of once a year at a
time and place
designated upon call
of the chair
Place designated upon call of the chair or, if she/he is unavailable or unable to call such meeting, the first vice chair and then the City Manager or her/his designee.

Office of Emergency Management 300 Seminary Ave. Ukiah, CA 95482467-5765 - Tami Bartolomei Develop any necessary emergency and mutual aid plans, agreements, ordinances, resolutions, rules, and regulations.

OrozcoDuenas- Alternate
Traci Boyl, City Manager's Office Management Analyst; 467-5720; [email protected] Greater Ukiah Business & Tourism Alliance (GUPTA)
4th Monday of month, 10:00 a.m.
200 S School St.Ukiah, CA 95482
200 S School St.Ukiah, CA 95482
Promotes tourism and works to strengthen and promote the historic downtown and businesses within the greater Ukiah area RodinDuenas - Alternate
Shannon Riley, Deputy City Manager;
467-5793 [email protected]
Mendocino County Inland Water and Power Commission (IWPC) 2nd Thursday of month, 6:00 p.m.

Civic Center
300 Seminary Avenueconference room 5
IWPC Staff P.O. Box 1247Ukiah, CA 95482391-7574 - Candace Horsley Develops coordination for water resources and current
water rights: Potter Valley project - Eel River Diversion RodinOrozco- Alternate
Sean White, Director of Water Resources; 463-5712 [email protected] North Coast Opportunities (NCO) 4th Wednesday of month, 2 p.m. Alternating locations - Ukiah and Lakeport Governing Board Chair
North Coast Opportunities413 North State StreetUkiah, CA 95482 Assist low income and disadvantaged people to become self reliant Burgess Jake Burgess, Community Services Supervisor; [email protected] Sun House Guild ex officio 2nd Tuesday of month, 4:30 p.m. Sun House 431 S. Main St. Ukiah, CA 431 S. Main Street Ukiah, CA 95482 467-2836 Support and expand Grace Hudson Museum Duenas Neil Davis - Alternate David Burton, Museum Director; 467-2836 [email protected] Ukiah Valley Basin Groundwater Sustainability Agency (GSA) 2nd Thursday of month, 1:30 p.m.

Board of Supervisors Chambers; 501 Low Gap Road
Ukiah, CA
County Executive Office
501 Low Gap Rd., Rm. 1010Ukiah, CA 95482463-4441
GSA serves as the Groundwater Sustainability Agency in the Ukiah Valley basin CraneDuenas - Alternate
Sean White, Director of Water Resources;
463-5712 [email protected]

MENDOCINO COUNTY MTG DATE/TIME MEETING LOCATION MAILING ADDRESS/CONTACT COMMITTEE FUNCTION ASSIGNED TO PRINCIPAL STAFF SUPPORT City Selection Committee Called as required by the Clerk of the Board BOS Conference Room 501 Low Gap Rd. Rm. 1090 Ukiah, CA C/O: BOS 501 Low Gap Rd., Rm 1090 Ukiah, CA 95482 463-4441 Makes appointments to LAFCO and Airport Land Use Commission (Mayor - Primary; Vice Mayor - Alternate) Mayor Rodin Vice Mayor Duenas - Alternate Kristine Lawler, City Clerk; 463-6217 [email protected] Economic Development & Financing Corporation (EDFC)
2nd Thursday of month, 2:00 p.m.

Primarily 631 S. Orchard Street (location varies)
Executive Director631 South Orchard AvenueUkiah, CA 95482467-5953 Multi-agency co-op for economic development and business loan program Riley(appointed 12/19/18)
Shannon Riley, Deputy City Manager;
467-5793 [email protected]
Library Advisory Board
3rd Wednesdays of alternate months; 1:00
p.m.

Various Mendocino County Libraries Ukiah County Library 463-4491 Review library policy and activities Duenas Rodin - Alternate Kristine Lawler, City Clerk; 463-6217; [email protected] Mendocino County 1st District Liaison Monthly; TBD
Civic Center Annexconference room #5
411 West Clay St.

Ukiah, CA 95482
Civic Center
300 Seminary Ave.Ukiah, CA 95482
To coordinate activities and policy development with the City's 1st District Supervisor RodinCrane - Alternate
Sage Sangiacomo, City Manager;
463-6221; [email protected]
Mendocino County 2nd District Liaison 1st Wednesdays of month, 8:00 a.m.

Civic Center Annexconference room #5
411 West Clay St.

Ukiah, CA 95482
Civic Center
300 Seminary Ave.Ukiah, CA 95482
To coordinate activities and policy development with the County's 2nd District Supervisor RodinDuenas - Alternate
Shannon Riley, Deputy City Manager;467-5793 [email protected] Mendocino Council of Governments (MCOG)
1st Monday of month, 1:30 p.m.

Board of Supervisors Chambers 501 Low Gap Road
Ukiah, CA
Executive Director
367 N. State Street, Ste. 206Ukiah, CA 95482463-1859
Plan and allocate State funding, transportation,
infrastructure and project County wide
DuenasSher - Alternate
Tim Eriksen, Public Works Director/City Engineer; 463-6280 [email protected] Mendocino County Airport Land Use Commission As needed
BOS Conference Room501 Low Gap Rd., Rm. 1090, Ukiah, CA Mendocino County Executive Office 501 Low Gap Rd. Rm. 1010 Ukiah, CA 95482 To formulate a land use compatibility plan, provide for the orderly growth of the airport and the surrounding area, and safeguard the general welfare of the inhabitants within the vicinity Liaisons: Owen/Schlatter
Greg Owen, Airport Manager; 467-2855; [email protected] Schlatter, Director of Community Development; 463-6219; [email protected] Mendocino County Local Area Formation Commission (LAFCO) 1st Monday of month, 9:00 a.m. Board of Supervisors Chambers Executive Director
200 S. School Street, Ste. 2Ukiah, CA 95482463-4470
Required by legislation - planning spheres of influence, annexation, service areas, and special districts
RodinCrane - Desired Alternate if
appointment becomes available with City Selection Committee Craig Schlatter, Director of Community Development; 463-6219; [email protected] 4/7/2023
ATTACHMENT 1

2023 CITY COUNCIL SPECIAL ASSIGNEMENTS

MENDOCINO COUNTY
Continued MTG DATE/TIME MEETING LOCATION MAILING ADDRESS/CONTACT COMMITTEE FUNCTION ASSIGNED TO PRINCIPAL STAFF SUPPORT Mendocino Solid Waste Management Authority (MSWMA)
3rd Thursday of every other month (varies), 10:00 a.m.

Willits Council Chambers
Solid Waste Director3200 Taylor DriveUkiah, CA 95482468-9710 County-wide Solid Waste JPA Crane Sher- Alternate Tim Eriksen, Public Works Director/City Engineer; 463-6280 [email protected] Mendocino Transit Authority (MTA) Board of Directors
Last Wednesday of month, 1:30 p.m.

Alternating locations - Ukiah Conference Center or Fort Bragg, or Point Arena Executive Director241 Plant RoadUkiah, CA 95482462-1422 County-wide bus transportation issues and funding Sher Duenas - Alternate Tim Eriksen, Public Works Director/City Engineer; 463-6280 [email protected] Mendocino Youth Project JPA Board of Directors
3rd Wednesday of month, 7:45 a.m.
776 S. State Street Conference Room
Mendocino Co. Youth Project776 S. State Street, Ste. 107Ukiah, CA 95482 707-463-4915 Targets all youth with a focus on drug and alcohol prevention, healthy alternatives and empowering youth to make healthy choices Cedric Crook, Police CaptainDuenas - Alternate
Cedric Crook, Police Captain 463-6771; [email protected] Russian River Flood Control District (RRFCD) Liaison
1st Monday of month, 5:30 p.m.
151 Laws Ave.,Suite D Ukiah, CA
151 Laws Ave., Ukiah, CA 95482; [email protected]; 462-5278 Proactively manage the water resources of the upper Russian River for the benefit of the people and environment of Mendocino County White/Orozco Sean White, Director of Water Resources; 463-5712 [email protected] Ukiah Players Theater Board of Directors
3rd Tuesday of month, 6:00 p.m
1041 Low Gap Rd Ukiah, CA 95482 462-1210
1041 Low Gap RdUkiah, CA 95482462-1210
To oversee the activities, organization and purpose of the Ukiah Players Theater Greg Owen, Airport Manager(appointed 12/19/18)
Kristine Lawler, City Clerk; 463-6217
[email protected]
Ukiah Unified School District (UUSD) Committee Quarterly 511 S. Orchard, Ste. D Ukiah, CA 95482 511 S. Orchard Ukiah, CA 95482 Information exchange with UUSD Board Chair, Mayor, Superintendent, and City Manager Mayor, City Manager and Police Chief Sage Sangiacomo, City Manager; 463-6221 ssangiacomo @cityofukiah.com

REGIONAL MTG DATE/TIME LOCATION MAILING ADDRESS/CONTACT COMMITTEE FUNCTION ASSIGNED TO PRINCIPAL STAFF SUPPORT Great Redwood Trail Agency Bi-monthly, 3rd Thursdays, 10:30 a.m. Various Locations - announced 419 Talmage Road, Suite M Ukiah, CA 95482 463-3280 Provides a unified and revitalized rail infrastructure meeting the freight and passenger needs of the region Rodin Duenas - Alternate Neil Davis, Community Services Director 467-5764 [email protected] League of California Cities Redwood Empire Legislative Committee Prior to Division Meetings, meets 3x in person and then via conference call Various locations that are announced
Redwood Empire League President; Public Affairs Program Manager (916) 658-8243 Elected city officials and professional city staff attend division meetings throughout the year to share what they are doing and advocate for their interests in Sacramento OrozcoDuenas -Alternate
Sage Sangiacomo, City Manager; 463-6221 [email protected] Russian River Watershed Association (RRWA)
4th Thursday of month, 9:00 a.m. (only 5 times a year)
Windsor Town Hall
Russian River Watershed Association 425 South Main St., Sebastopol, CA 95472 508-3670 Consider issues related to Russian river - plans projects and funding requests RodinSher - Alternate
Tim Eriksen, Public Works Director/City Engineer; 463-6280 [email protected] Northern California Power Agency (NCPA) Commission
4th Thursday of month, 9:00 a.m. (see NCPA calendar)
Roseville, CA and other locations
651 Commerce Drive Roseville, CA 95678916-781-4202
Pool of State and local power utilities developing and operating power generation, providing scheduling and related energy services and providing regulatory and legislative support.

Crane - CommissionerSauers - Alternate and
Commissioner in absence of Commissioner Crane
Cindi Sauers - Electric Utility Director;463-6286 [email protected] Northern California Power Agency (NCPA) – Lodi Energy Center (LEC) Appointment 2nd Monday of
month, 10:00 AM Lodi, CA and other locations
651 Commerce DriveRoseville, CA 95678916-781-4299
Committee oversees the operation, maintenance and
expenditures of the LEC 300 MW generating project.

Sauers
– Project Participate
Appointee
Cindy Sauers, Electric Utility Director,
463‐6286, [email protected]
Transmission Agency of Northern California (TANC)
4th Wednesday of month, 10 a.m.
35 Iron Point Circle Suite 225 Folsom, CA
35 Iron Point Cir #225Folsom, CA 95630916-852-1673; info @tanc.us
Provide electric transmission to its Member utilities through transmission line ownership or contract arrangements.

CraneSauers - Alternate
Cindi Sauers - Electric Utility Director;463-6286 [email protected]

STANDING COMMITTEES MTG DATE/TIME LOCATION MAILING ADDRESS/CONTACT COMMITTEE FUNCTION ASSIGNED TO PRINCIPAL STAFF SUPPORT Diversity and Equity TBD Virtual Meeting Room (link to be created) Civic Center 300 Seminary Ave. Ukiah, CA 95482 Improve diversity and equity in the City’s workforce and municipal services Orozco/Duenas Traci Boyl, City Manager's Office Management Analyst; 467-5720; [email protected] Fire Executive Committee
2nd Tue, every other month beginning in January; 5:00 p.m.

Ukiah Valley Conference Center,200 S. School Street Ukiah, CA Civic Center300 Seminary Ave.Ukiah, CA 95482 sabba
@cityofukiah.com
Per the recently adopted agreement between the City of Ukiah and the Ukiah Valley Fire Protection District Orozco/Sher Doug Hutchison, Fire Chief; 463-6263;
[email protected]
Countywide Oversight Board to the RDA Successor Agencies 4th Thursday of January, 4:00 p.m.; meets annually
Ukiah Valley Conference Center,200 S. School Street Ukiah, CA City of UkiahATTN: City Clerk300 Seminary Ave.Ukiah, CA 95482707-463-6217 oversee and direct the Successor Agencies of the former redevelopment agencies Crane Dan Buffalo, Director of Finance; 463-6220 [email protected] Lawler, City Clerk; 463-6217, [email protected] 4/7/2023

COMMITTEE ASSIGNED TO PRINCIPAL STAFF SUPPORT
Electric Grid Operational Improvements Crane/Orozco Cindy Sauers, Electric Utility Director; 463-629586 [email protected]
Trench Cut Policy Development Crane Tim Eriksen, Public Works Director/City Engineer; 463-6280 [email protected]
Advance Planning & Policy for Sphere of
Influence (SOI), Municipal Service Review (MSR),
Annexation, Tax Sharing, Detachment, and Out
of Area Service Agreements
Crane/Rodin
Craig Schlatter, Community Development Director
463-6219 [email protected]
UVSD/ City Relations
Ad hoc committee to address specific issues with the
Ukiah Valley Sanitation District, including discussion of overall sewer system service delivery policies, operating policy revisions, potential revisions to the current
Operating Agreement, and cost sharing
Crane/Orozco
Dan Buffalo, Director of Finance;
463‐6220 [email protected]
Sean White, Water Resources Director
463‐5712 [email protected]
Orr Street Bridge Corridor Rodin/Sher Tim Eriksen, Public Works Director/City Engineer; 463-6280 [email protected]
Complete Streets Rodin/Crane
Tim Eriksen, Public Works Director/City Engineer;
463-6280 [email protected]
Shannon Riley, Deputy City Manager
467-5793 [email protected]
Neil Davis, Community Services Director
467-5764 [email protected]
Special Districts (Water District Consolidation) Orozco/Crane Shannon Riley, Deputy City Manager 467‐5793 [email protected]
Corp Yard Planning Crane/Orozco Jason Benson, Senior Civil Engineer 463‐6284 [email protected]
City/District Review of 2019/22 Proposed Fire
Code Crane/Orozco Doug Hutchison, Fire Chief
463‐6263 [email protected]
Mendocino County Courthouse Project and
Reuse Sher/Orozco Shannon Riley, Deputy City Manager
467‐5793 [email protected]
Climate Action Plan
Will coordinate with the Community Development
Director to identify and assign representation to each of the identified categories, and also coordinate with the Community Development Director and the Climate Action
Plan Working Group related to other outreach efforts
during the development of the draft municipal Climate
Action Plan related to the 2040 General Plan
Sher/Duenas
Craig Schlatter, Community Development Director
463-6219 [email protected]
2023 AD HOC COMMITTEES
3/16/2023