Santa Ana Delhi Channel F01

Down Stream Dyer / Flower pg 859 El ., . .

Up Stream Flower / Sunflower pg 859 E3

<...- . -. Up Stream Paularino / Enterprise pg 859 D5 Up Stream lrvine Av below Bristol pg 889 Dl I

'i ' p/ 3. PRO JFCT DESCRIFI'ION w 1 3.1 Project History

The following information is taken from "Project Report, Santa h a - D e b i Channel (FOl), Upper Newport Bay to San Diego Freeway and Paularino Channel (F03), From Newport Freeway to Harbor Boulevard" prepared for the Orange County Environmental Manage- ment Agency by Willdan Associates, July 1982.

The Santa Ana-Delhi Channel and its tributaries drain approximately 11,000 acres principally located in Santa Ana and Costa Mesa. It appears that the land historically drained to the Santa Ana River; however, drainage was sluggish at best. The land probably flooded each time the Santa Ana River flowed. The area was marked with natural sumps and swamps.

I

I Around the turn of the century, farming interests began development of the land. In 1870, a community called Delhi was formed in the vicinity of Warner Avenue. The land was used for the production of sugar beets and several sugar factories were established in the area.

As farming intensified and prospered, a better drainage system was required. It is probable that during the late 19th century, farming interests excavated a ditch to the Upper Newport Bay to drain the land since the river was now leveed and local drainage was blocked.

In 1909, the Orange County Board of Supenisors formed the Delhi Drainage District. The district w& bounded roughly by FaLrview Street on the west, Edinger Street on the north, ~ y f o r d Road on the east, and the San Diego Freeway on the south.

The early activities of the Delhi Drainage District are not well known, but it appears that the district maintained facilities which drained the area to Newport Bay. In 1929 the M c t acquired drainage easements between the Back Bay and approximately Newport Boulevard (approximately the boundary of the drainage district in this area) from The lnine Company. The Santa Ana-Delhi Channel followed approximately its existing alignment between Newport Bay and Sunflower Avenue, although it appears that the ditch upstream of Newport Avenue was on private lands,

the late 1940s and early 1950s, the Orange County Flood Control District began :acquiring easements for the Santa Ana-Delhi Channel between the Back Bay and Sunfbwer Avenue. The Flood Control District, by agreement with the Delhi Drainage District and The f i e Company, acquired Delhi easements downstream of Newport Avenue. The Flood Control District acquired easements at nominal cost between Newport Avenue and Sudower Avenue for the Santa ha-Delhi chamel formerly known as the "Main Ditch."

The Flood Control District's 1955 Engineers Report included Santa Ana-Delhi Channel and S a m Ana Gardens Chamel as projects F01 and F02, respectively. The subsequent 1956

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~ocation of Sampling Sites BNB25 = Vaughns Launch BNB26 = Ski Zone CNBBC = Big Canyon Creek CNBSA = Santa Ana Delhi Channel /' CNBCD = San Diego Creek-campus Drive /

-- -. - Station

Fecal Coliform Exceedences (>400) by Year

Enterococci Exceedences (>104) by Year

Station

3 Year

Posting - (+/- 5 00') t-, (+/- 150') .

1 ! i i i . . , i i ., i I j

# ' t . . j ; ' I

I ~ h ~ u s a b d s of feet'north of SAR . : . i t

i 1 . I

1 I I I I I I I

1 j . 1 i t ' .. .

1 1 5 .

. . I! ; ; 9 12 1 . ( j I

Blank= no violations; OK=no single sample standard violation; V=violation of single sample standard

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; : I * , : : ,

a : I L , " , , .

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TC (Total coliforrn) OK 1

FC (Fecal coliform) . .

v Scenario 1: , .

Ent (Enteroco ccus) V BOX^^:, ' . i ' . a

<, t . 1 , Posting ; +* (+/- 500')

. : , 'I; I : 1 ,

.,. . . .( . .I 1: 1 ' ' : ! , , , ( : j , .

/ / ' '

$ . . ::! . I . ; : : . , , I ; 1 ; , . . 8 " i i l . : '

. . x i . . I i . il . t + , , : j : : i ., 'I .

1 ; : :, I ; TC I OK , 1 ' . OK: :.,; . I . : . i ' I I i

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. . / i s I , :: ' 2 , 1 : ! . ! . ! ; ' I . ' : ,

i . . , i ; scenaki; 2;;: , , 1 ) ; i ; v , ; ;; : ' i a . I . ' , . I . I ' j FC V i ; , ' ; : i I : # , , . . 1 . I . . ! ; I . . ! , , ! , , I ~ I . i

, . . . i i ! i ! i l 1 . . , . . : , : . v ! ! , . I 5 ' ;I; ! . . 1 , , , : : : ~ ~ ~ 2 i ( 2 > $4, I : , : I :

: , i / , I : ix: j l ! l t

. $ 1 ; . i ; ,,,! . ! 7 ; . . i ] i i i . Ent . . I . : . I i ! , i I: ., ii: , . :, . r i ; / ' ! 1 , i . I 1 ! : I : , , : , , :

, gN, ' (1000' buffer at endpoints) / a I ) ! 1 I Posting j I : j . , . 7

!

! 1

TC ! OK i td OK I 0 :

34 , Scenario 3: FC V : I N' t3 : OK

i n C-' w v

Box 22(1),24 Ent ,I V Posting i ' (- 1000' from 6N) 4 + (+50O1fk~m 12N)

5N 12.5N

TC OK OK 5

FC V OK Scenario. 4:

Ent V V Box 23

311 3/2001 12997

187

loa 5.95064255 10.093777 5.231 1086 6.01 12672 5.81 71 1 4.70048 8.55101 5 4.89784 8.551 015 9.89661 398 5.231 109

2/21/2001 9000

134

2/14/2001 >24 192

5172

2/27/2001 16000 51 72

1/23/2001 >24192

408

1/17/2001 24192

187

3/6/2001 > I 6000

19863

STATION CNBSA

1/30/2001 >24192

336

1/3/2001 12997

384

2/6/2001 ; 11 199

110

1/9/200 1 >24 192 2 4 1 92

ocation Description Santa Ana Delhi TC

FC

5/14/2001 1800 140

5/21/2001 440 880

6/11/2001 >900 280

4/30/2001 ~17400

3200

4/23/2001 CwIC

550

6/18/2001 1 >I 9400

500

5/31/2001 >200

. 170

5/9/2001 2800

150

4/16/2001 11200

450

6/4/2001 >2600

130

4/9/2001 TNTC 1600

4/2/2001 >5000

340

3/19/2001 15600

400

3/26/2001 3200 400

6/25/2001 >560 220

7/16/2001 >30000 1300

7/2/2001 >4000 1000

7/23/2001 >a800 1400

7/9/2001 TNTC 6600

713012001 >I4400

800

8/6/2001 24800 440

8/13/2001 2400 760

812012001 >I 0600 3200

8/27/2001 >.20600

2200

9/4/2001 >I 3600 1000

9/10/2001 >I4200 3800

9/17/2001 5600 400

9/24/2001 TNTC 3000

. 11/5/2001 1111 312001 11/2012001 11/26/2001 12/3/2001 1211 0/2001

I CwIC CwlC CwIC CwlC CwIC >I 6200

I Cw/C CwlC TNTC CwIC TNTC 714

- mean

@g?e t geomean

Rmg a v e

2/19/2002 Cw/C

850.00

1/14/2002 5200

260.00

1/22/2002 ~ 3 8 0 0 180.00

STATION CNBSA

311 112002 15000

390.00

2/4/2002 TNTC

810.00

2/25/2002

, TNTC '2000.00

1/28/2002

15400.00

ocation Description Santa Ana Delhi TC

I FC

1/2/2002 ) 1/7/2002 21 1 112002 8400

760.00

3/4/2002 >I 1000 130.00

18400 210.00

TNTC 650.00

6/3/2002 23000

1000.00

5/28/2002 TNTC

400.00

5/13/2002 >5800

930.00

6/10/2002 ) 6/17/2002 5/20/2002 TNTC

520.00

4/22/2002 23000 630.00

3400 560.00

4/29/2002 1 5/6/2002 4/18/2002 6200

280.00 2000

340.00 13400

470.00

4/8/2002 TNTC

2200.00 6800

520.00

4/1/2002 TNTC

1100.00

3/18/2002 TNTC

18800.00

3/25/2002 >29200 200.00