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30-Day Running Geometric Means for the
Upper Newport Bay Stations for 2000 - 2002
The following graphs provide the 30-day running geometric means for the Upper Newport
Bay stations for total coliforms, fecal coliforms and enterococci between April 1 and October
31 during 2000 - 2002. Data representing rain advisory periods are omitted from this
analysis. Running geometric means (which include at least 5 samples within the preceding
30 days) are used in addition to single sample results to detect exceedences under AB 411
Ocean Water-Contact Sports Standards. Running geometric means are useful in providing
water quality data indicative of the trend at a given monitoring site without the influence of
occasional, temporary single sample spikes in indicator levels.
Each station is represented by a single graph depicting the relative levels of total coliforms,
fecal coliforms and enterococci, together with the standard for each indicator. The lower
limit for each indicator is determined by the limit of detection for the analytical laboratory,
and is less than 10 CFU/100 ml for some stations.
Vertical lines on the graphs separate annual AB 411 periods by year. Each running mean is
represented by a continuous line and is not carried forward to subsequent years.
Newport Bay, Newport Dunes – West
Running Geometric Means for Total Coliform, Fecal Coliform and Enterococcus
AB 411 Periods (4/1 through 10/31), 2000-2002
10000
Total Coliform (Standard = 1,000)
Fecal Coliform (Standard = 200)
Enterococcus (Standard = 35)
1000
100
10
2000
2001
2002
0
1
2
0
0
0
0
0
1
1
1
1
1
1
1
2
2
2
2
2
2
2
0
0
0
0
1
1
2
2
00 2 00 200 200 2 00 200 200 2 00 200 200 200 200 2 00 200 200 2 00 200 200 200 200 200 2 00 200 200 200 200 200 2 00 200 200
2
4/ 5/ 5/ 7 / 6/ 4/ 4/ 5/
6/ 6/ 7/ 7/ 9/ 9 / 8/ 6/
8/ 7/ 0/ 1/ 9/ 9/ 0/ 1 /
3/ 1/ 2/ 2/ 5/ 4/
4/ 5/ 5/2 6/1 7/ 7/2 8/1 9/ 9/2 0/1 4/1 5/1 6/ 6/2 7/1 8/ 8/2 9/1 10/ 0/2 4/1 5/ 5/2 6/1 7/1 7/3 8/1 9/ 9/3 0/2
1
1
1
Dry Weather Data
Newport Bay, Newport Dunes – Middle
Running Geometric Means for Total Coliform, Fecal Coliform and Enterococcus
AB 411 Periods (4/1 through 10/31), 2000-2002
10000
Total Coliform (Standard = 1,000)
Fecal Coliform (Standard = 200)
Enterococcus (Standard = 35)
1000
100
Dry Weather Data
2002
4/
18
/0
5/ 2
6/
0
5/ 2
28
/
6/ 02
17
/
7/ 02
10
/
7/ 02
31
/
8/ 02
19
/0
9/ 2
9/
0
9/ 2
30
10 / 02
/2
1/
02
2001
4/
30
/
5/ 01
21
/
6/ 01
11
/0
1
7/
2/
0
7/ 1
23
/
8/ 01
13
/0
9/ 1
4/
0
9/ 1
24
10 / 01
/1
5/
01
2000
4/
3/
0
5/ 0
1/
0
5/ 0
22
/
6/ 00
12
/0
7/ 0
5/
0
7/ 0
24
/0
8/ 0
14
/0
9/ 0
5/
0
9/ 0
25
10 / 00
/1
7/
00
10
Newport Bay, Newport Dunes – East
Running Geometric Means for Total Coliform, Fecal Coliform and Enterococcus
AB 411 Periods (4/1 through 10/31), 2000-2002
10000
Total Coliform (Standard = 1,000)
Fecal Coliform (Standard = 200)
Enterococcus (Standard = 35)
1000
100
2000
2001
2002
10
0 0 0 0 00 00 0 0 00 00 0 0 00 00 01 01 0 1 01 01 0 1 01 01 01 01 02 0 2 02 02 02 02 02 0 2 02 02
3/ /1/ 22/ 12/ /5/ 24/ 14/ /5/ 25/ 17 / 16/ 14/ /4/ 25/ 16/ /6/ 27/ 17/ /9/ 29 / 18/ /6/ 28/ 17/ 10/ 31/ 19/ /9/ 30/ 21 /
/
4
5 5/
7 7/
9 9/ 0/
6 6/ 7/
8 8/
5 5/ 6/
9 9/ 0/
6/
8/
4/ 5/
9/ 10 10/
4/
7/
7/
8/
1
1
Dry Weather Data
Newport Bay, Newport Dunes – North
Running Geometric Means for Total Coliform, Fecal Coliform and Enterococcus
AB 411 Periods (4/1 through 10/31), 2000-2002
10000
Total Coliform (Standard = 1,000)
Fecal Coliform (Standard = 200)
Enterococcus (Standard = 35)
1000
100
2000
2001
2002
Dry Weather Data
4/
18
/0
5/ 2
6/
0
5/ 2
28
/
6/ 02
17
/
7/ 02
10
/
7/ 02
31
/
8/ 02
19
/0
9/ 2
9/
0
9/ 2
30
10 / 02
/2
1/
02
4/
30
/
5/ 01
21
/
6/ 01
11
/0
7/ 1
2/
0
7/ 1
23
/
8/ 01
13
/0
9/ 1
4/
0
9/ 1
24
10 / 01
/1
5/
01
4/
3/
0
5/ 0
1/
0
5/ 0
22
/
6/ 00
12
/0
7/ 0
5/
0
7/ 0
24
/
8/ 00
14
/0
9/ 0
5/
9/ 0 0
25
10 / 00
/1
7/
00
10
Newport Bay, North Star Beach
Running Geometric Means for Total Coliform, Fecal Coliform and Enterococcus
AB 411 Periods (4/1 through 10/31), 2000-2002
10000
Total Coliform (Standard = 1,000)
Fecal Coliform (Standard = 200)
Enterococcus (Standard = 35)
1000
100
2000
2001
2002
Dry Weather Data
4/
18
/0
5/ 2
6/
0
5/ 2
28
/
6/ 02
17
/
7/ 02
10
/
7/ 02
31
/
8/ 02
19
/0
9/ 2
9/
0
9/ 2
30
10 / 02
/2
1/
02
4/
30
/
5/ 01
21
/
6/ 01
11
/0
7/ 1
2/
0
7/ 1
23
/
8/ 01
13
/0
9/ 1
4/
0
9/ 1
24
10 / 01
/1
5/
01
4/
3/
0
5/ 0
1/
0
5/ 0
22
/
6/ 00
12
/0
7/ 0
5/
0
7/ 0
24
/
8/ 00
14
/0
9/ 0
5/
0
9/ 0
25
10 / 00
/1
7/
00
10
Newport Bay, De Anza
Running Geometric Means for Total Coliform, Fecal Coliform and Enterococcus
AB 411 Periods (4/1 through 10/31), 2000-2002
10000
Total Coliform (Standard = 1,000)
Fecal Coliform (Standard = 200)
Enterococcus (Standard = 35)
1000
100
2000
2001
2002
Dry Weather Data
4/
18
/0
5/ 2
6/
0
5/ 2
28
/
6/ 02
17
/
7/ 02
10
/
7/ 02
31
/
8/ 02
19
/0
9/ 2
9/
0
9/ 2
30
10 / 02
/2
1/
02
4/
30
/
5/ 01
21
/
6/ 01
11
/0
7/ 1
2/
0
7/ 1
23
/
8/ 01
13
/0
9/ 1
4/
9/ 0 1
24
10 / 01
/1
5/
01
4/
3/
0
5/ 0
1/
0
5/ 0
22
/
6/ 00
12
/0
7/ 0
5/
7/ 0 0
24
/
8/ 00
14
/0
9/ 0
5/
0
9/ 0
25
10 / 00
/1
7/
00
10
Newport Bay, Bayshore Beach
Running Geometric Means for Total Coliform, Fecal Coliform and Enterococcus
AB 411 Periods (4/1 through 10/31), 2000-2002
10000
Total Coliform (Standard = 1,000)
Fecal Coliform (Standard = 200)
Enterococcus (Standard = 35)
1000
100
2000
2001
2002
Dry Weather Data
4/
18
/0
5/ 2
6/
5/ 0 2
28
/
6/ 02
17
/
7/ 02
10
/
7/ 02
31
/
8/ 02
19
/0
9/ 2
9/
0
9/ 2
30
10 / 02
/2
1/
02
4/
30
/
5/ 01
21
/
6/ 01
11
/0
7/ 1
2/
7/ 0 1
23
/
8/ 01
13
/0
9/ 1
4/
0
9/ 1
24
10 / 01
/1
5/
01
4/
3/
0
5/ 0
1/
5/ 0 0
22
/
6/ 00
12
/0
7/ 0
5/
7/ 0 0
24
/
8/ 00
14
/0
9/ 0
5/
9/ 0 0
25
10 / 00
/1
7/
00
10
Newport Bay, Vaughn’s Launch
Running Geometric Means for Total Coliform, Fecal Coliform and Enterococcus
AB 411 Period (4/1 through 10/31), 2000*
10000
Total Coliform (Standard = 1,000)
Fecal Coliform (Standard = 200)
Enterococcus (Standard = 35)
1000
100
Dry Weather Data
4/
18
/0
5/ 2
6/
0
5/ 2
28
/
6/ 02
17
/
7/ 02
10
/
7/ 02
31
/
8/ 02
19
/0
9/ 2
9/
0
9/ 2
30
10 / 02
/2
1/
02
4/
3/
0
5/ 0
1/
0
5/ 0
22
/
6/ 00
12
/0
7/ 0
5/
7/ 0 0
24
/
8/ 00
14
/0
9/ 0
5/
9/ 0 0
25
10 / 00
/1
7/
00
10
*Sufficient data to calculate geometric means
not available for years 2001 and 2002.
4/
30
/
5/ 01
21
/
6/ 01
11
/0
7/ 1
2/
7/ 0 1
23
/
8/ 01
13
/0
9/ 1
4/
9/ 0 1
24
10 / 01
/1
5/
01
2000
Newport Bay, Ski Zone
Running Geometric Means for Total Coliform, Fecal Coliform and Enterococcus
AB 411 Period (4/1 through 10/31), 2000*
10000
Total Coliform (Standard = 1,000)
Fecal Coliform (Standard = 200)
Enterococcus (Standard = 35)
1000
100
*Sufficient data to calculate geometric means
not available for years 2001 and 2002.
2000
10
0
0
0
1 1
2
0
0
0
0
0
0
1
1 1
1 1
1 1
1
1 1
2
2 2
2
2
2
2
2
2
/0 3/0 3/0 3/0 3/0 3/0 3/ 0 3/ 0 3/ 0 3/0 3/0 3/0 3/0 3/0 3/0 3/0 3/0 3/0 3/ 0 3/ 0 3/ 0 3/0 3/0 3/0 3/0 3/0 3/0 3/0 3/0 3/0 3/ 0
3
4/ 5/ 6/ 7/ 8/ 9/ 10/ 11/ 12/ 1/ 2/ 3/ 4/ 5/ 6/ 7/ 8/ 9/ 10/ 11/ 12/ 1/ 2/ 3/ 4/ 5/ 6/ 7/ 8/ 9/ 10/
Dry Weather Data