Transcript
General
The water quality goal established in the QAPP is the state marine water quality standard. This standard is normally applied to the mouths of tributaries. The comparable fresh water standard is WAC 173‐201a‐200(2)(b). This standard should be applied to samples not influenced by marine waters. The standard applied to Oakland Bay shoreline sampling is a modification of Mason County Water Quality Standard Operating Procedures adopted in the Oakland Bay Marine Recovery Area QAPP. Table 1‐ Water Quality Standards for Fecal Coliforms (FC) referenced in this grant Marine Standard Source‐ QAPP and WAC173‐201a‐210 (2)(b) Fresh Water Standard Source‐WAC173‐201a‐ 200 (2)(b)
Fecal coliform organism levels must not exceed a geometric mean value of 14 colonies/100 mL, and not have more than 10 percent of all samples (or any single sample when less than ten sample points exist) obtained for calculating the geometric mean value exceeding 43 colonies /100 mL. Fecal coliform organism levels must not exceed a geometric mean value of 100 colonies/100 mL, with not more than 10 percent of all samples (or any single sample when less than ten sample points exist) obtained for calculating the geometric mean value exceeding 200 colonies/100 mL.
Oakland Bay Discharges with values greater than or equal to 200 FC/100mL will be Shoreline Standard considered high priority for FC confirmation sampling. Discharges with values greater than 100 FC/100mL will be considered medium priority. Source‐ Oakland Bay Marine Recovery Area QAPP
The fresh water rather than marine water quality standard has been chosen as the standard to apply in reviewing the data. The areas in the grant where the marine sampling standard could be applied are some of the ambient sites, and some of the Chapman Cove and McLane Cove sites. Roughly a quarter of the Mason County ambient sites and two thirds of the McLane Cove sites are under marine influence at high tide, but since the samples are taken flowing off the land during a lower tidal stage, the fresh water standard seemed most applicable. The shoreline samples are also taken flowing off land. They are tested for salinity in cases such as beach seeps when it is not clear whether the water originates on land and diffuses down through layers of the beach to surface again lower on the beach, or whether the origin is marine water draining out of the top layer of gravel, mud or sand. Areas and Sites Selected for Sampling Tier I ambient‐ These are the long term ambient sites. The goal of long term ambient monitoring is to track changes in water quality over a long period of time due to changes of use and development in the area. The sites selected as part of this grant were chosen because they were not part of the Squaxin ambient sampling, and because each is a significant drainage in a sensitive area or has/had some development in the area. Sampling started in March 2013 and will continue to the end of the grant. By the end of 2013 eighty‐three samples have
1
1
43
17
31
23
9 110 23 8 240 160 4 2 170 9 16 80 49 52 140 7 52 1 1 80
20
20
30 21 43 8 31 58 40 12 14
Count
Geometric Mean
11/25/2013
220 87 470 250
11/13/2013
33 92 105 39
150 55 32 12 53 87 14
10/1/2013
60 92 45
9/30/2013
6/18/2013
6/5/2013
6/3/2013
33 85 14 180 2 15 130 18 140 320 67 43 32 31
9/16/2013
8/6/2013
PP‐002
22 28 72 76 43 12 77 4
8/5/2013
1 5 1 3 1 5 1 1 26 20 6 32 36 17 5
7/23/2013
19 TL‐001 RAU1 PBW1 LYN1 DER1 PP‐003 PP‐001
4/10/2013
4/9/2013
3/26/2013
Sample Site
been collected. Ambient sites 60, 61, 63, NB‐004, NB‐022, and NB‐023 were included in the North Bay data set to keep data from the same geographical area together. No site is above the geometric mean and RAU1 is the only site above the 10% standard. The site drains a wooded area, with a farm and light development above Table 2 ‐Fecal Coliforms per 100 mL water for Ambient Sites
10 10 6 9 10 9 10 10 9
Figure 1‐ Ambient Sample Sites
Tier II ambient‐ As the grant was originally written, Tier II ambient was shorter term sampling focused on a specific area. The grant calls for monthly sampling until a roughly accurate picture of water quality is developed in the area. The first area sampled was McLane Cove. It was sampled from January 2013 to September 2013. Flow data was also collected. A minimum of 5 samples were collected as an initial assessment, and sites with some elevated sample results, or other issues, were continued until 10 samples or more were taken per site. An upland investigation may also be warranted. A total of 67 samples were collected. No site in McLane Cove exceeds the geometric mean. Two sites exceeded the 10% standard, CI‐002 and CI‐010. The only source of pollution in the CI‐002 drainage is wildlife. CI‐010 may have potential for farm influence, but access to the properties in question hasn’t been obtained. Mason Conservation District and Mason County Public Health have planned a joint field trip to the area to pool knowledge and discuss future action needed. Educational/outreach work done in the area to this point is a preliminary letter sent to area residents before sampling started. Now that sampling has been completed, the plan is to follow up with a water quality report card for the area from Washington State University and some septic Operation and Maintenance incentives. Rebates will be given for operation and maintenance or pumping, and risers and/or effluent filters. Letters will be sent out informing the property owners in the area of the rebate program.
Figure 2‐ McLane Cove Sample Sites
1 1 1 59 52 1
3
1
8
11
37 100 18
64
55 5 6
Table 4‐ Flow Measurements for McLane Cove Sites
Site CI‐002 CI‐002 CI‐003 CI‐003 CI‐006 CI‐006 CI‐010 CI‐010 CI‐010 CI‐010 CI‐013 CI‐013 CI‐013
Date 7/2/2013 8/19/2013 7/2/2013 8/19/2013 7/2/2013 8/19/2013 5/20/2013 6/5/2013 7/2/2013 8/19/2013 5/20/2013 6/5/2013 7/2/2013
Flow (cf/s) 0.32 0.03 0.0053 0.0018 2 0.28 0.13 0.08 0.03 0.07 0.32 0.08 0.06
Fecal Coliform (cfu/100 mL) 170 55 9 50 29 6 240 390 325 100 65 40 17
Loading (CFU/day) 13311082 403737 11672 22022 14191962 411078 7634297 7634297 2385718 1712823 5089531 783005 249583
20 19 5 1 6 4 1 8 89 16 21 11 4
Count
170 9 29 325 17
Geometric Mean
59
9/17/2013
390 170 1 2 7 390 40
8/19/2013
6/4/2013
4/23/2013
3/21/2013 5
7/2/2013
1 2 1 36 16 12 57 1
32
7/1/2013
1 2 1
20 5 1 230 1 1 12 10 1 1 1 5 6 2 1 3 120 15 240 16 3 36 7 65
6/5/2013
CI‐014
5/21/2013
5/20/2013
CI‐001 CI‐002 CI‐003 CI‐004 CI‐005 CI‐006 CI‐008 CI‐009 CI‐010 CI‐011 CI‐012 CI‐013
2/19/2013
1/22/2013
Sample Sites
Table 3‐ Fecal Coliforms per 100 mL water for McLane Cove Sites
1 9 8 6 2 7 1 8 8 1 3 8 5
North Bay is the second area of focus for Tier II. Preliminary sampling started in September of 2013. The sampling sites were finalized in December 2013. Sampling will continue through the end of the grant. Fifty seven samples were collected in the North Bay area by the end of 2013. The North Bay area was selected to be part of shorter term Tier II grant work because of known water quality problems in the area that have limited shellfish harvesting. The area was sewered along the water several years ago and some improvements in water quality have been seen. However, there is a considerable amount of development in the area, with the small town of Allyn right next to the shellfish harvesting area, so potential contamination sources are many. Potential bacteriological sources include septic systems in the upland area, pet waste, and urban wildlife. Stormwater and impervious surfaces add to the problem, though in terms of transport rather than as a source of bacteriological pollution. Since full scale Tier II sampling for the area was finalized in December 2013, a full discussion of the sample results will occur in a later report. Work planned as follow up to the initial sampling includes dye testing and education. Education will consist of an Environmental Health Specialist canvassing the downtown Allyn area to educate each property owner or renter on water quality issues particular to their property. Education for business owners will include information about garbage storage to discourage urban wildlife, whereas the education for residents may include information about picking up pet waste and landscaping to retain and infiltrate stormwater on their properties. Proper care of septic systems will be addressed when relevant to the property and properties that need additional follow up will be tracked.
Figure 3‐ North Bay Sites
56 1500 520 21 13 410
260 680 180 110
910 59 27 40 71
32 8 5 6 7 8
69 1 2 2 35 5 1 1 33 1 1
83
370
30
139 50 83 56 1 3 75 35 5 439 41 81 21 13 410 1 1 33 1 1 30
Count
SH‐001
Geometric Mean
190 700 31 180
12/2/2013
28 20 40 65 37 72 185 580 72
11/25/2013
800
11/13/2013
9/16/2013
29 22
10/1/2013
8/6/2013
11 12 96
9/30/2013
6/18/2013
220 110 420
9/17/2013
6/5/2013
61 60 63 AND‐001 NB‐001 NB‐002 NB‐004 NB‐005 NB‐006 NB‐012 NB‐022 NB‐023 NB‐024 NB‐025 NB‐026 NB‐028 NB‐029 NB‐030 NB‐031 NB‐032
7/23/2013
6/3/2013
6/24/2013
4/10/2013
Sample Site
Table 5‐ Fecal Coliforms per 100 mL water for North Bay Sites
7 9 1 1 1 2 7 1 1 2 8 8 1 1 1 1 1 1 1 1 1
Hammersley Shoreline Hammersley Inlet was not originally part of the sampling plan for the grant, but was included after Steering Committee discussions determined it to be the type of work the grant should support. This is a continuation of the Oakland Bay Clean Water District shoreline sampling supported under other grant
funding that has ended. The goal of this sampling plan is to survey one‐third of the Oakland Bay Clean Water District shoreline every year and to sample all the culverts, bulkhead drains, natural drainages and rapidly flowing seeps in the survey area. Because the number of sample sites is so large, the goal for number of samples per site is smaller than in the above areas. The goal is to sample at least twice at each sample site: once in wet weather and once in dry weather. The sampling timeline: the middle section, which is from Bayshore Golf Course to Walker Park road on the south side of Oakland Bay and a corresponding section on the north side, was sampled through another grant in 2012; the Hammersley section of Oakland Bay shoreline was sampled in 2013; and the northernmost section will be sampled in 2014. One hundred ninety‐nine shoreline samples were taken in 2013. Due to the large number of sites, only the sites with high FC results are shown in the map and table below. Surveys of the sites with high results began at the beginning of 2014. The sites with high results are surveyed for water quality problems and issues addressed either through education or dye traces, if necessary.
Figure 4‐ Hammersley Sites with High FC Results
Table 6‐ Hammersley Shoreline Sites with High FC Results
Site BOB‐104 BOB‐105 BOB‐118 BOB‐125 BOB‐135 BOB‐136 BOB‐139 BOB‐141 BOB‐149 BOB‐157 BOB‐158 OBP‐002 OBP‐005 OBP‐010 OBP‐013 OBP‐022 OBP‐023 OBP‐029 OBP‐033 OBP‐034 OBP‐035 OBP‐036 OBS‐007 OBS‐012 OBS‐019 OBS‐022 OBS‐023 OBS‐034 OBS‐035 OBS‐036 OBS‐040 OBS‐041 OBS‐046 OBV‐006 OBV‐011 OBV‐012 OBV‐015 OBV‐017 OBV‐022 OBV‐039
Result Date (fc/100mL) 3/25/2013 300 3/25/2013 200 4/22/2013 36 5/8/2013 1300 5/8/2013 215 5/22/2013 800 5/22/2013 120 5/22/2013 310 6/19/2013 43 5/22/2013 800 5/22/2013 400 8/28/2013 170 8/28/2013 170 9/3/2013 420 9/3/2013 65 9/4/2013 350 9/4/2013 140 9/4/2013 260 9/4/2013 125 9/18/2013 120 9/18/2013 130 9/18/2013 89 8/14/2013 565 8/13/2013 210 7/31/2013 690 8/14/2013 160 8/14/2013 180 8/14/2013 170 8/28/2013 180 8/28/2013 780 8/28/2013 250 8/13/2013 180 6/19/2013 170 6/19/2013 145 6/24/2013 1900 6/24/2013 300 6/24/2013 290 7/22/2013 130 7/22/2013 1600
Date 10/18/2013 5/22/2013 10/15/2013 10/15/2013 10/16/2013 10/16/2013 12/16/2013 12/16/2013 12/17/2013 12/17/2013 12/17/2013 12/18/2013 12/18/2013 12/18/2013 12/18/2013 12/18/2013 12/4/2013 12/3/2013 12/3/2013 12/3/2013 12/4/2013 12/16/2013 12/16/2013 12/16/2013 12/16/2013 12/16/2013 12/3/2013 10/28/2013 10/28/2013 10/28/2013 10/28/2013 10/28/2013 10/28/2013 10/29/2013
Result (fc/100mL) 380 20 150 47 95 200 11 1 100 11 20 1 2 1 16 1 16 1300 dry 110 2 720 15 56 9 4 430 915 1 dry dry dry 8 2
Upland Investigations Upland sampling consisted of upland work in the Oakland Bay shoreline area. One goal of the sampling was to assess urban surface water pollution entering Shelton Harbor (part of Oakland Bay). Sites above and below downtown Shelton development are tested. This is also a continuation of Oakland Bay Clean Water District sampling; the sites were sampled in 2008 under a different grant. The Shelton Wastewater Treatment Plant has been working under a variety of grants to reduce inflow/infiltration into the drainage basins. Resampling the area after basin improvements may add to understanding of how sewer inflow/infiltration affected surface water quality in downtown Shelton. Another focus area was a farm in a sensitive upland area. One hundred nineteen samples were taken.
Figure 5‐ Investigative Sites
49 1100 82 410
10 10 10 10 9 9 1 9 10 3 8 1 2 10 9 8
23 18 7 2 4 3
12/11/2013
47 60 49 21 22 33 150 44 12 38 19 33 5 34 10 3 12 9 156 83 33 79 2
12/10/2013
Count
78 61
34 81 7 69 92 120 14 12 12 45 11 75 10 130 7 140 270 8 92 160 10 8 12
Geometric Mean
11/19/2013
100 88 88 51 660 56
10/22/2013
9/24/2013
9 200 320 52 110 44 29 26 180 21 32 84 4 17 220 36 80 33 36 43 59 43 56 27 57 44 16 1 570 370 800 280 640 91 2600 650
7/9/2013
9/10/2013
28 15 37 80 9 20 3 53 2 29 33 100 39 150 20 110 19 59 470 570 220 100 88 130
6/11/2013
37 1100 440 91 150 39 27
5/29/2013
10 10 10 20
5/13/2013
4/10/2013
SHE‐001 SHE‐002 SHE‐004 SHE‐005 SHE‐006 SHE‐007 SHE‐011 SHE‐012 SHE‐013 SHE‐014 SHE‐016 OBC‐045 OBC‐024 OBC‐014 OBC‐081 OBC‐086
12/27/2012
Sample Sites
Table 7‐ Fecal Coliforms per 100 mL water for Upland Investigation Sites
Chapman Cove Chapman Cove was a separate task amended to the grant in 2012. Sampling started in October 2012 and will continue to the end of the grant in a modified form. In March 2013, sampling results were assessed. Sites with low FC results were dropped and sites with high results were continued. Upland investigations for sites with elevated counts were done and additional sites added when warranted. Sites that are normally part of the Chapman Cove upland’s trend tracking under previous grants were also continued. Two‐hundred and sixty‐three samples were taken at 26 sites. As a result of the sampling, the Mason Conservation District has been asked by Mason County to contact two of the farms in the area. This work is preliminary to some additional contacts to be made.
Figure 6‐ Chapman Cove Sites
14
1
20
29
48
460 61 590 150 180 17 100 230 330 130
84 440 540 49 48 820 96 120 74 32 92 570 56 170
1300 350 102 49
180 55
260 120 240
150 780
560 1000 460
68 28
1000 1100 440 145 890 1100 490 480 870 680
130 13
350 720 500 480
Count
6
65
Geometric Mean
85
550 1800 280 180 1100 130 190
260 55 19 35 12 55 31 68 35 51
12/11/2013
62
33 29 23 20 7 370 3 7 260 1 340 270 2 65
10/15/2013
UJC‐057
7 41 2 1 23 19 10
13 6
9/30/2013
33 17
9/5/2013
3/21/2013
9 4 31 33 47 5 19 24 19 24 27 27 36 21 24 19 24 6 25
9/4/2013
2/25/2013
33 22
8/20/2013
2/19/2013
2 1 14 1 83 1 18 32 16 10 16 1 36 43 32 18 28 12 4
8/5/2013
2/11/2013
1 1 33 4 140 2 55 15 17 25 9 27 52 63 15 55 72 2 27
7/24/2013
1/28/2013
15 5
7/22/2013
1/23/2013
2 1 14 5 96 2 11 21 5 7 15 3 33 10 21 11 12 4 9
7/17/2013
1/14/2013
10 10
7/1/2013
12/27/2012
1 5 170 8 76 5 7 5 18 9 45 45 43 28 37 1 100
6/17/2013
12/10/2012
142 17 65 31
6/4/2013
12/03/12
3 3 26 3 31 3 9 14 20 14 23 26 57 6 3 11 46
5/21/2013
11/26/12
460 15 280 85 230 31 38 69 100 23 38 92 160 38 38 31 62
5/7/2013
11/13/2012
10 10 30 10 10 10 80 90
4/25/2013
11/6/2012
23 360 590 62 1300 92 290 250 310 23 180 490 210 210 38 290
4/22/2013
10/29/2012
OBY‐045 OBY‐054 OBY‐055 OBY‐057 OBY‐058 OBY‐059 OBY‐062 OBY‐065 OBY‐088 OBY‐089 OBY‐090 OBY‐091 OBY‐092 UJC‐017 UJC‐023 UJC‐024 UJC‐025 UJC‐026 UJC‐033 UJC‐038 UJC‐043 UJC‐045 UJC‐046 UJC‐047 UJC‐056
3/27/2013
Sample site
Table 8‐ Fecal Coliforms per 100 mL water for Chapman Cove Sites
14 10
6 5 102 10 106 190 10 10 6 65 73 107 104 28 21 37 10 77 100 34 36 30 8 7 63
8 8 16 8 14 9 1 1 8 10 8 5 10 22 18 11 11 19 18 10 9 8 4 8 18
18
8
Fecal Coliform/ 100 mL water
120 100 80 2009
60
2010
40
2011
20 0 UJC‐017
UJC‐023
UJC‐024
UJC‐025
UJC‐038
Sample Site
Table X‐ Geometric Means for 2013 35
Fecal coliform per 100 mL
30 25 20 geometric mean
15 10 5 0 UJC‐017 UJC‐023 UJC‐024 UJC‐025 UJC‐038
Mason County had been monitoring fecal coliform trends in the Uncle John Creek area and has seen improving water quality. The geometric mean for Uncle John Creek sites was separated out for 2013 because this grants QAPP caused us to switch to a different method of testing for fecal coliforms. It is inappropriate to include 2013 data in with other years. Next year we will be able to compare 2013 and 2014 on the same graph.
Quality Control Table 9‐ Quality Control Data
Year 2012 2013
#samples
Duplicates Blanks 105 0 690 53
sample runs 0 8 45 66
Table 10‐ Quality Control Results for 2013
Parameter DUPLICATES
BLANKS
QC results 1/13 samples 1/1.5 sample runs
QC goal 1/10 samples 1 blank/ sample run
Quality control goals are 1 blank per sample event and 10% duplicates. In 2012, we started working under the Squaxin QAPP. Blanks and duplicates were not taken at that time, per discussion with the Tribe. In 2013, when project management changed at the Tribe, Mason County started taking blanks and duplicates on their own initiative in order to align with the QAPP. We didn’t meet the QC goals in 2013, though we were not far off in duplicates. The missed target for duplicates can be attributed to a couple of factors; one major factor is when a sampling run didn’t have sample sites with flows large enough to take samples simultaneously. Another factor is running low on bottles due to additional investigative sampling during a run; carrying additional bottles on each run will help in the future. Mason County recently discussed quality control expectations for 2014 with the Tribe; this will also help since we are now sure of the expectations.