Project Title
C-1. Demonstration and Evaluation of Floating Wetland Islands 1. Project Title
Demonstration and Evaluation of Floating Wetland Islands
2. Sponsor N.C. State University Office of Sponsored Research
Organization Name
[email protected]
E-mail address
2701 Sullivan Drive, Suite 240
Mailing Address
Raleigh
City
919-515-2444
Telephone
NC
State
Fax Number
27695-7514 Zip 919-515-7721
56 6000 756
Federal Tax ID Number
3. Project Coordinator or Primary Contact1 William F. Hunt
Name
Assistant Professor and Extension Specialist
Title
[email protected]
E-mail Address
NCSU Box 7625
Mailing Address
Raleigh
City
State
NC
919-515-6751
27695-7625 Zip 919-515-6772
Fax Number (if different from above)
Telephone (if different from above)
1 A one-page Statement of Qualifications must accompany applications to confirm that anyone designing, installing, or monitoring the proposed project is qualified to do so. Include in the statement any past and/or ongoing 319 grant funded projects.
Total Section 319 Funds Requested Match funds or in-kind Match Services 4. Total Project Cost
$95,000
$82,611
$177,611
5. Type of Funding Requested (check one)
Competitive Base
Restoration (Incremental)
X Development or implementation of a Watershed Restoration Plan
6. Type of Project (check one)
Development or implementation of a TMDL X
Innovative BMP Technology Demonstration Education/Technology Transfer Other: (please indicate)
NC Application for Section 319 NPS Pollution Control Grant
7. General Goal of Project (Check all that apply)
8. Project Start Date
Protect and/or Maintain Water Resource Quality
Restore Water Resource Quality
Educate
X
X
X
October 1, 2008
9. Geographic Coverage
Project End Date
Statewide
Regional
September 30, 2011 Watershed
Site Specific X
10. Project Location River Basin
Neuse River
Watershed(s)
Ellerbe Creek
Watershed size
Total of 2: 38.5 acres
303(d) listed Stream Yes X
303 (d) list number Stream Reach Code HUC(s) (14 digit USGS Hydrologic Unit Codes) County USGS. 7.5 minute topographic quadrangle map(s) in project area Position coordinates of project location
No Impaired Biological Integrity (2006 303d list)
27-5-(0.7) 03020201050010 Durham Northwest Durham Quad Map Latitude
varies
Longitude varies
11. NPS Pollution Sources to be addressed (Check all that apply)
X
Agriculture
Waste Disposal (includes onsite systems)
Construction
Hydrologic Modification
Silviculture Urban runoff/Stormwater
Marina and Recreational Boating Groundwater Loading
Resource Extraction
Natural Sources
Habitat Modification (drainage/filling wetlands, streambank destabilization)
Other:
NC Application for Section 319 NPS Pollution Control Grant
12. NPS Pollutants to be addressed (check all that apply) X
Excess Nitrogen
Pesticides
X
Excess Phosphorus
Oil and grease
Sedimentation
Temperature
Pathogens/Bacteria
X
X
pH
Metals
Alterations
Low dissolved oxygen
Other:
12a. Estimate Load Reduction, if checked for excess nitrogen, excess phosphorus and/or sedimentation # pounds of nitrogen saved from project Reference: N-PCalculationPiedmontModel (NC implementation 2020 lbs DENR) (http://h2o.enr.state.nc.us/nps/tarpam.htm) # pounds of phosphorus saved from project Reference: N-PCalculationPiedmontModel (NC implementation 60 lbs DENR) (http://h2o.enr.state.nc.us/nps/tarpam.htm) # tons of soil saved from project implementation Reference: Load Reduction Model Used: STEPL, Region 5, L-THIA, Other
NC DENR – Tar Pam Piedmont Other
13. Project Abstract (short concise summary of the project – DO NOT EXPAND SPACE PROVIDED) Two ponds in Durham, NC, will be retrofitted with floating wetland islands. These ponds currently have no vegetation growing inside them, like most ponds in North Carolina. Due to tremendous retrofitting pressure that is likely to accompany watershed rules associated with the Jordan Lake reservoir, it is imperative for cities like Durham, Burlington and Greensboro to identify cost effective retrofits. Floating wetland islands do not require any earth moving, nor will they detract from the required storage volume required for wet ponds, because they float. The systems are expected to reduce quantities of nitrogen and phosphorus, but the exact amounts will be determined by field monitoring. Inflows and outflows from both ponds will be monitored for one year at the grant’s outset. Following the baseline monitoring period, floating wetland islands will be installed and monitored for an additional year. Inflows and outflows will be collected at the same locations during both stages of the study to verify the impacts of the floating wetland islands. The ponds will be visited via field tours and highlighted at educational events to disseminate knowledge gained to the design community. If successful, ponds with floating wetland islands could become the most commonly retrofitted BMP type in North Carolina.
NC Application for Section 319 NPS Pollution Control Grant
14. Funding Requested Budget Categories (itemize all categories)
Section 319
Year 1
Year 2
Non-Federal Match *
Year 3
Year 4
Year 1
Year 2
Year 3
Total
Justification (Include statement for each budget line item)
10% Time Extension Engineer (3 years), 20% Time Research Technician (2.5 year). MATCH: 1% of Assistant Professor for 3 years 25% of above
Year 4
Personnel/ Salary
8,500
11,333
11,333
2,833
668
890
890
222
36,669
Fringe Benefits Supplies
2,124
2,833
2,833
708
167
222
222
56
9,165
7,500
35,000
45,000
Equipment Travel
87,500
10,000 350
466
450
10,000
100
1,366
Lab Analysis
3000
3000
3000
Other
3196
8586
2529
630
14,941
3,641
17031
57698
6641
908
168,641
8637
83
111
111
28
8970
12,278
17114
57809
6752
936
177,611
Total Direct
18,474
49,632
14,616
Indirect Annual Totals
18,474
49,632
14616
Grand Total
95,000
82,611
% of Total Budget
53.5%
46.5%
*Note: Non-Federal match must be a minimum of 40% of the total project budget
9,000
100%
$80,000 for purchase of Floating Wetland Islands. $7,500 for flow module purchase, monitoring supplies $10,000 in ISCO 6712R samplers provided by City of Durham, NC ~40 roundtrips from NCSU to Durham for monitoring and BMP installation City of Durham funded Lab Analysis . Forfeited 17.3% of NCSU Overhead
NC Application for Section 319 NPS Pollution Control Grant
NC Application for Section 319 NPS Pollution Control Grant
15. Budget Summary (Combined federal and match funds) BMP Implementation
Project Management
5000
Education Training or Outreach 2000
Personnel
9669
Fringe Benefits Supplies
2415
20000
36,669
1250
500
5000
9,165
7500
87,500
10000
10,000
900
1,366
9000
9,000
80000
Equipment Travel
150
316
Monitoring
Technical Assistance
Other
Total
Contractual Lab Analysis Other Total
92234
6566
2500
52400
23911
23911
23911
177,611
16. Local and State Match (non-federal) Summary Total Match amount
$82,611
Cash Match
$45,000
In-kind Match
$37,611
Source(s) of Cash Match
City of Durham (purchase of floating wetland islands)
Source(s) of In-kind Match
NCSU Faculty Salary + Fringe. NCSU Forfeited overhead. City of Durham supply of 2 Automated Samplers. City of Durham: Sample Analysis
NC Application for Section 319 NPS Pollution Control Grant
17. Project Partners (may add more, if needed)2 Agency Name City of Durham Stormwater Services Agency Address 101 City Hall Plaza, 3rd Floor City Hall Role/contribution to Assist with pond selection. Assist with floating wetland installation. Assist with Project sample collection. Run chemical sample analyses. Assist with training. Contact Person Paul Wiebke / Jacob Chandler Phone No. 919-560-4326 E-mail address [email protected] / [email protected] Agency Name Agency Address Role/contribution to Project Contact Person E-mail address
North Carolina Cooperative Extension 109E Carya Drive, Raleigh, NC Assist with floating wetland installation. Assist with training delivery.
Agency Name Agency Address Role/contribution to Project Contact Person E-mail address
North Carolina Cooperative Extension Bickett Avenue, Louisburg, NC Assist with floating wetland installation. Assist with training. Assist with factsheet production William Lord Phone No. 919-496-3344 [email protected]
Mitchell Woodward [email protected]
Phone No.
919-250-1112
2 A one-page Statement of Qualifications must accompany applications to confirm that anyone designing, installing, or monitoring the proposed project is qualified to do so. Include in the statement any past and/or ongoing 319 grant funded projects.
NC Application for Section 319 NPS Pollution Control Grant
18. Project Milestone Schedule Time Period/Date
Activities (List specific quantifiable outputs or activities that will be achieved during each quarter)
First Quarter Oct-Dec 2008
Contract Awarded. Order Monitoring Equipment. Install Equipment.
Anticipated % of Requested Funding Spent1 10% / 10% $9,500
Second Quarter Jan-Mar 2009
Begin pre-floating wetland island monitoring (or, Phase I monitoring)
5% / 15% $4,750
Third Quarter Apr-June 2009
Continue Phase I monitoring.
Fourth Quarter July-Sept 2009
Continue Phase I monitoring
Fifth Quarter Oct-Dec 2009
Complete Phase I monitoring. Phase I data analysis. Begin installation of floating wetland islands.
20% / 45% $19,000
Sixth Quarter Jan-Mar 2010
Finish floating wetland island installation. Begin floating wetland island monitoring (Phase II).
15% / 60% $14,250
Seventh Quarter Apr-June 2010
Continue Phase II monitoring
Eighth Quarter July-Sept 2010
Continue Phase II monitoring. Conduct 1st Training Event.
Ninth Quarter Oct-Dec 2010
Continue Phase II monitoring. Begin data analysis. Write factsheet.
2% / 84% $1,900
Tenth Quarter Jan-Mar 2011
Complete Phase II monitoring. Continue data analysis. Conduct 2nd Training event.
2% / 86% $1,900
Eleventh Quarter2 Apr-June 2011
Complete Data analysis.
Twelfth Quarter July-Sept 2011
Submit final report.
1
4.447% / 19.447% $4,225 5.553% / 25% $5,275
11.691% / 71.691% $11,106 10.309% / 82% $9,794
1.076% / 87.076% $1,022 12.924% / 100% $12,278
Please show anticipated dollar amount, percent of grant spent that quarter, and cumulative percent of grant spent for project. Quarterly invoices will only be reimbursed up to percent indicated. Unused funds will carry forward to next quarter. 2 10% of grant will be held until receipt of Final Project Report
NC Application for Section 319 NPS Pollution Control Grant
19. Background and goals of the project. Expand space, if necessary The cities of the Jordan Lake Watershed are anticipating the need for extensive stormwater retrofitting to be in compliance with forthcoming requirements. In developed areas of these cities, which include Burlington, Chapel Hill, Durham, Graham, Greensboro, and Hillsborough, space is very limited and retrofitting deemed to be extremely expensive. Many of these developed areas are already served by wet ponds, but previous studies in North Carolina (Hathaway et al., 2007a and b) show pond removal abilities to be marginal to moderate for pollutants such as nitrogen (approximately 25% TN reduction). Additional phosphorus removal by wet ponds is also desired. In Durham and Greensboro alone, there are approximately 400 wet ponds installed. These ponds do serve some valuable purposes such as peak flow mitigation (flood control), but are dependent upon a water storage reservoir to function properly. It has been proposed previously – and attempted twice - to convert these existing wet ponds to wetland-like ponds that incorporate aquatic (or vegetated shelves) to improve TN and TP removal. Doing this however, necessitates that either (1) portions of the wet pond be filled in, therefore sacrificing original flow mitigation and sediment storage benefits or (2) that the ponds be expanded, which is highly unlikely with these “landlocked” ponds. There is, however, a technology that appears to address both of these concerns: floating wetland islands. Floating wetlands, made partly of recycled plastic, have been shown in trials in the western United States to improve waste water concentrations of nitrate and phosphate. So, they hold promise for stormwater nutrient removal. They, however, have yet to be tested for stormwater applications and have not been used in the Eastern United States. An obvious benefit of the islands is that they do not require earthwork to be conducted in the wet pond and they do not require additional space to be created for them to float. Floating Islands International has reduced the cost of their product by 25% for this project. The goals of this study are three-fold: (1) install demonstration floating wetlands in two ponds in the City of Durham, (2) monitor the effectiveness of the retrofitted wet ponds (which includes establishing a baseline of the pre-retrofitted ponds), and (3) disseminating the information gained from this demonstration/ study through workshop/tours and a floating wetland island factsheet to be posted on the BAE stormwater website.
20. A detailed description of the project. Note: if project entails developing or implementing a Watershed Restoration Plan, see section 25. Expand space, if necessary Two ponds operated by the City of Durham have been pre-selected to be retrofit with floating wetland islands. One wet pond is located on the Hillandale Golf Course immediately adjacent to (and receiving runoff partially from) Interstate 85. The pond is pictured in Figure 1. It is approximately 1 acre at normal pool.
NC Application for Section 319 NPS Pollution Control Grant
Figure 1. I-85 wet pond (left) and DATA wet pond (right) in Durham, NC. The second pond is located at the Durham Area Transit Authority (DATA) bus terminal and is approximately 0.25 acres in size at normal pool. This pond is pictured in Figure 1. The ponds will be monitored for year (inlet and outlet concentrations) prior to the installation of floating wetland islands to establish a baseline pond efficiency. This performance will later be compared to that of the retrofitted wet ponds. After a year of monitoring, floating wetland islands will be installed in the wet ponds as a retrofit. Examples of the floating wetlands are shown in the pictures below.
Figure 2. Floating wetland islands in a wastewater polishing pond (left) and an example of the root structure intertwined among the recycled plastic lattice. Once established, the floating wetland / wet pond retrofits will be monitored (at the same locations identified previously) for an additional year. During this time, workshops and/or field tours will take designers to the wet pond retrofits for observation and a design guidance factsheet will be written (assuming the systems do improve the quality of water in the pond effluent). Based upon the factsheet, NC State faculty will submit a NC DENR Stormwater BMP design manual addendum (to be posted at NC DENR’s discretion) that details how floating wetland islands should be used and suggests an amount of credit that should be awarded to this practice. The end result of this guidance, if the floating wetland islands prove successful at reducing nutrient concentrations, would be the adoption of floating wetlands as one of the preferred retrofit tools in North Carolina.
21. Monitoring/Environmental Data Collection Describe in section below how project data will be used (i.e. demonstrate effectiveness of BMPs installed, calculate load reductions, data to be used for TMDL development, data to be used for State use support purposes, etc.). If monitoring is needed to document a demonstration project or water quality improvement, a Quality Assurance Project Plan (QAPP) will be required (reviewed and approved by DWQ). For guidance and additional information, visit: http://www.epa.gov/owow/monitoring/volunteer/qappcovr.htm
NC Application for Section 319 NPS Pollution Control Grant
Data will be collected at two locations in both ponds: the main inlet and the sole outlet. The samples collected will be flow weighted composites at each location. Sampling units such as ISCO 6712’s and ISCO 6712R’s will be used to collect the samples. Flow weighting will be measured by an associated bubbler or flow meter. The exact flow measurement system will be determined during the first quarter of the study. Both tipping bucket and manual rain gages will be located at each pond location. Samples will be collected by either an NCSU-BAE technician (primarily) or by personnel with the City of Durham (secondarily) and taken to the City’s waste water treatment plant for chemical analysis. Samples will be collected within 24 hours of a storm event and refrigerated if not analyzed immediately. Approximately 15 storm events from each configuration (pre-retrofit v. post retrofit) and pond (I-85/ Hillandale and DATA) will be chemically analyzed. (This equates to 60 samples total.) Analytes for each sample include: TKN, NO2-3-N, NH4-N, TP, Dissolved-P, and TSS. TN will be determined by adding TKN and NO2-3-N concentrations. Inlet and outlet pH will also be measured at the times of sample collection. Data will be sent to NCSU faculty for analysis. It is expected that statistical analysis will be conducted using NCSU-supported SAS ™ software. The exact statistical tests to be used have yet to be determined.
22. Public Involvement Public involvement by NCSU faculty is limited to the training events to be hosted in or adjacent to the Jordan Lake Watershed. At least two site visits by design professionals to the floating wetland retrofits will occur. Selection of the project locations will involve local officials, including the superintendent of Hillandale Golf Course. Information collected by this project will be available to the public by way of the existing BAE stormwater team website: www.bae.ncsu.edu/stormwater. Also, it is expected that the City of Durham will post information on the project on its stormwater website (http://www.ci.durham.nc.us/departments/works/stormwater.cfm). In particular, a factsheet will be written on the viability of floating wetland islands as a retrofit alternative. The design profession will also be made aware of findings, if they are positive regarding nutrient removal, by way of NC DENR’s stormwater BMP Design Manual. If the floating wetlands work, an addendum to the manual will be provided by NCSU faculty to be posted at the discretion of NC DENR personnel.
NC Application for Section 319 NPS Pollution Control Grant
23. Project Measures of Success or “Measurable Results Anticipated from the Project” 1. Baseline Pond performance will be evaluated for one year. 2. Retrofitted pond (with floating wetland islands) will be evaluated for one year. 3. If the performance found in #2 above is superior to that of #1 above, the use of floating wetland islands will be recommended by NC State faculty as a possible retrofit. 4. The use of floating wetland islands in existing ponds, perhaps initially in Durham and Greensboro, because they are most immediately impacted by the Jordan Lake rules, would be expected to increase. The potential use is substantial. 5. An increase in the use of floating wetland islands in #4 above would lead to reductions in (at least some) nutrient loads from urban surfaces. 6. Hundreds of design professionals will be made aware of this potential retrofit, assuming it performs reasonably well, leading to potential adoption across the state of North Carolina.
24. List Project Outputs and Products (All 319 funded projects are required to submit Quarterly Progress Reports and a detailed Final Project Report, which must be submitted at least *30 days before* the end of the contract for DWQ review and approval.) 1. Two conventional stormwater wet ponds will be monitored for 1 year. 2. Two demonstration ponds will be retrofitted with floating wetland islands. 3. The retrofitted floating island ponds will be monitored for 1 year. 4. Two classroom training events for design professionals will highlight these retrofits. There will also be two site visits for design professionals made. 5. A factsheet will be written detailing the use, design, and performance of the floating wetland ponds, provided the systems are shown to work. If the floating islands do not appear to function as intended, a short report will be made to the public discouraging the use of this particular retrofit. Either publication will be posted on the BAE Stormwater Website. 6. Guidance, in the form of a Stormwater BMP Design Manual addendum, will be given to NC DENR personnel upon completion of the project either (1) recommending the use of this BMP retrofit (with design guidelines and nutrient removal credit), or (2) discouraging the adoption of this product as a BMP retrofit. 7. A final project report.
25. References and Literature Cited Hathaway, J.M, W.F. Hunt, J.T. Smith, and A. Johnson. 2007a. Pierson Pond Final Monitoring Report. City of Charlotte. Hathaway, J.M, W.F. Hunt, J.T. Smith, and A. Johnson. 2007b. Shade Valley Pond Final Monitoring Report. City of Charlotte.
Demonstration and Evaluation of Floating Wetland Islands
2. Sponsor N.C. State University Office of Sponsored Research
Organization Name
[email protected]
E-mail address
2701 Sullivan Drive, Suite 240
Mailing Address
Raleigh
City
919-515-2444
Telephone
NC
State
Fax Number
27695-7514 Zip 919-515-7721
56 6000 756
Federal Tax ID Number
3. Project Coordinator or Primary Contact1 William F. Hunt
Name
Assistant Professor and Extension Specialist
Title
[email protected]
E-mail Address
NCSU Box 7625
Mailing Address
Raleigh
City
State
NC
919-515-6751
27695-7625 Zip 919-515-6772
Fax Number (if different from above)
Telephone (if different from above)
1 A one-page Statement of Qualifications must accompany applications to confirm that anyone designing, installing, or monitoring the proposed project is qualified to do so. Include in the statement any past and/or ongoing 319 grant funded projects.
Total Section 319 Funds Requested Match funds or in-kind Match Services 4. Total Project Cost
$95,000
$82,611
$177,611
5. Type of Funding Requested (check one)
Competitive Base
Restoration (Incremental)
X Development or implementation of a Watershed Restoration Plan
6. Type of Project (check one)
Development or implementation of a TMDL X
Innovative BMP Technology Demonstration Education/Technology Transfer Other: (please indicate)
NC Application for Section 319 NPS Pollution Control Grant
7. General Goal of Project (Check all that apply)
8. Project Start Date
Protect and/or Maintain Water Resource Quality
Restore Water Resource Quality
Educate
X
X
X
October 1, 2008
9. Geographic Coverage
Project End Date
Statewide
Regional
September 30, 2011 Watershed
Site Specific X
10. Project Location River Basin
Neuse River
Watershed(s)
Ellerbe Creek
Watershed size
Total of 2: 38.5 acres
303(d) listed Stream Yes X
303 (d) list number Stream Reach Code HUC(s) (14 digit USGS Hydrologic Unit Codes) County USGS. 7.5 minute topographic quadrangle map(s) in project area Position coordinates of project location
No Impaired Biological Integrity (2006 303d list)
27-5-(0.7) 03020201050010 Durham Northwest Durham Quad Map Latitude
varies
Longitude varies
11. NPS Pollution Sources to be addressed (Check all that apply)
X
Agriculture
Waste Disposal (includes onsite systems)
Construction
Hydrologic Modification
Silviculture Urban runoff/Stormwater
Marina and Recreational Boating Groundwater Loading
Resource Extraction
Natural Sources
Habitat Modification (drainage/filling wetlands, streambank destabilization)
Other:
NC Application for Section 319 NPS Pollution Control Grant
12. NPS Pollutants to be addressed (check all that apply) X
Excess Nitrogen
Pesticides
X
Excess Phosphorus
Oil and grease
Sedimentation
Temperature
Pathogens/Bacteria
X
X
pH
Metals
Alterations
Low dissolved oxygen
Other:
12a. Estimate Load Reduction, if checked for excess nitrogen, excess phosphorus and/or sedimentation # pounds of nitrogen saved from project Reference: N-PCalculationPiedmontModel (NC implementation 2020 lbs DENR) (http://h2o.enr.state.nc.us/nps/tarpam.htm) # pounds of phosphorus saved from project Reference: N-PCalculationPiedmontModel (NC implementation 60 lbs DENR) (http://h2o.enr.state.nc.us/nps/tarpam.htm) # tons of soil saved from project implementation Reference: Load Reduction Model Used: STEPL, Region 5, L-THIA, Other
NC DENR – Tar Pam Piedmont Other
13. Project Abstract (short concise summary of the project – DO NOT EXPAND SPACE PROVIDED) Two ponds in Durham, NC, will be retrofitted with floating wetland islands. These ponds currently have no vegetation growing inside them, like most ponds in North Carolina. Due to tremendous retrofitting pressure that is likely to accompany watershed rules associated with the Jordan Lake reservoir, it is imperative for cities like Durham, Burlington and Greensboro to identify cost effective retrofits. Floating wetland islands do not require any earth moving, nor will they detract from the required storage volume required for wet ponds, because they float. The systems are expected to reduce quantities of nitrogen and phosphorus, but the exact amounts will be determined by field monitoring. Inflows and outflows from both ponds will be monitored for one year at the grant’s outset. Following the baseline monitoring period, floating wetland islands will be installed and monitored for an additional year. Inflows and outflows will be collected at the same locations during both stages of the study to verify the impacts of the floating wetland islands. The ponds will be visited via field tours and highlighted at educational events to disseminate knowledge gained to the design community. If successful, ponds with floating wetland islands could become the most commonly retrofitted BMP type in North Carolina.
NC Application for Section 319 NPS Pollution Control Grant
14. Funding Requested Budget Categories (itemize all categories)
Section 319
Year 1
Year 2
Non-Federal Match *
Year 3
Year 4
Year 1
Year 2
Year 3
Total
Justification (Include statement for each budget line item)
10% Time Extension Engineer (3 years), 20% Time Research Technician (2.5 year). MATCH: 1% of Assistant Professor for 3 years 25% of above
Year 4
Personnel/ Salary
8,500
11,333
11,333
2,833
668
890
890
222
36,669
Fringe Benefits Supplies
2,124
2,833
2,833
708
167
222
222
56
9,165
7,500
35,000
45,000
Equipment Travel
87,500
10,000 350
466
450
10,000
100
1,366
Lab Analysis
3000
3000
3000
Other
3196
8586
2529
630
14,941
3,641
17031
57698
6641
908
168,641
8637
83
111
111
28
8970
12,278
17114
57809
6752
936
177,611
Total Direct
18,474
49,632
14,616
Indirect Annual Totals
18,474
49,632
14616
Grand Total
95,000
82,611
% of Total Budget
53.5%
46.5%
*Note: Non-Federal match must be a minimum of 40% of the total project budget
9,000
100%
$80,000 for purchase of Floating Wetland Islands. $7,500 for flow module purchase, monitoring supplies $10,000 in ISCO 6712R samplers provided by City of Durham, NC ~40 roundtrips from NCSU to Durham for monitoring and BMP installation City of Durham funded Lab Analysis . Forfeited 17.3% of NCSU Overhead
NC Application for Section 319 NPS Pollution Control Grant
NC Application for Section 319 NPS Pollution Control Grant
15. Budget Summary (Combined federal and match funds) BMP Implementation
Project Management
5000
Education Training or Outreach 2000
Personnel
9669
Fringe Benefits Supplies
2415
20000
36,669
1250
500
5000
9,165
7500
87,500
10000
10,000
900
1,366
9000
9,000
80000
Equipment Travel
150
316
Monitoring
Technical Assistance
Other
Total
Contractual Lab Analysis Other Total
92234
6566
2500
52400
23911
23911
23911
177,611
16. Local and State Match (non-federal) Summary Total Match amount
$82,611
Cash Match
$45,000
In-kind Match
$37,611
Source(s) of Cash Match
City of Durham (purchase of floating wetland islands)
Source(s) of In-kind Match
NCSU Faculty Salary + Fringe. NCSU Forfeited overhead. City of Durham supply of 2 Automated Samplers. City of Durham: Sample Analysis
NC Application for Section 319 NPS Pollution Control Grant
17. Project Partners (may add more, if needed)2 Agency Name City of Durham Stormwater Services Agency Address 101 City Hall Plaza, 3rd Floor City Hall Role/contribution to Assist with pond selection. Assist with floating wetland installation. Assist with Project sample collection. Run chemical sample analyses. Assist with training. Contact Person Paul Wiebke / Jacob Chandler Phone No. 919-560-4326 E-mail address [email protected] / [email protected] Agency Name Agency Address Role/contribution to Project Contact Person E-mail address
North Carolina Cooperative Extension 109E Carya Drive, Raleigh, NC Assist with floating wetland installation. Assist with training delivery.
Agency Name Agency Address Role/contribution to Project Contact Person E-mail address
North Carolina Cooperative Extension Bickett Avenue, Louisburg, NC Assist with floating wetland installation. Assist with training. Assist with factsheet production William Lord Phone No. 919-496-3344 [email protected]
Mitchell Woodward [email protected]
Phone No.
919-250-1112
2 A one-page Statement of Qualifications must accompany applications to confirm that anyone designing, installing, or monitoring the proposed project is qualified to do so. Include in the statement any past and/or ongoing 319 grant funded projects.
NC Application for Section 319 NPS Pollution Control Grant
18. Project Milestone Schedule Time Period/Date
Activities (List specific quantifiable outputs or activities that will be achieved during each quarter)
First Quarter Oct-Dec 2008
Contract Awarded. Order Monitoring Equipment. Install Equipment.
Anticipated % of Requested Funding Spent1 10% / 10% $9,500
Second Quarter Jan-Mar 2009
Begin pre-floating wetland island monitoring (or, Phase I monitoring)
5% / 15% $4,750
Third Quarter Apr-June 2009
Continue Phase I monitoring.
Fourth Quarter July-Sept 2009
Continue Phase I monitoring
Fifth Quarter Oct-Dec 2009
Complete Phase I monitoring. Phase I data analysis. Begin installation of floating wetland islands.
20% / 45% $19,000
Sixth Quarter Jan-Mar 2010
Finish floating wetland island installation. Begin floating wetland island monitoring (Phase II).
15% / 60% $14,250
Seventh Quarter Apr-June 2010
Continue Phase II monitoring
Eighth Quarter July-Sept 2010
Continue Phase II monitoring. Conduct 1st Training Event.
Ninth Quarter Oct-Dec 2010
Continue Phase II monitoring. Begin data analysis. Write factsheet.
2% / 84% $1,900
Tenth Quarter Jan-Mar 2011
Complete Phase II monitoring. Continue data analysis. Conduct 2nd Training event.
2% / 86% $1,900
Eleventh Quarter2 Apr-June 2011
Complete Data analysis.
Twelfth Quarter July-Sept 2011
Submit final report.
1
4.447% / 19.447% $4,225 5.553% / 25% $5,275
11.691% / 71.691% $11,106 10.309% / 82% $9,794
1.076% / 87.076% $1,022 12.924% / 100% $12,278
Please show anticipated dollar amount, percent of grant spent that quarter, and cumulative percent of grant spent for project. Quarterly invoices will only be reimbursed up to percent indicated. Unused funds will carry forward to next quarter. 2 10% of grant will be held until receipt of Final Project Report
NC Application for Section 319 NPS Pollution Control Grant
19. Background and goals of the project. Expand space, if necessary The cities of the Jordan Lake Watershed are anticipating the need for extensive stormwater retrofitting to be in compliance with forthcoming requirements. In developed areas of these cities, which include Burlington, Chapel Hill, Durham, Graham, Greensboro, and Hillsborough, space is very limited and retrofitting deemed to be extremely expensive. Many of these developed areas are already served by wet ponds, but previous studies in North Carolina (Hathaway et al., 2007a and b) show pond removal abilities to be marginal to moderate for pollutants such as nitrogen (approximately 25% TN reduction). Additional phosphorus removal by wet ponds is also desired. In Durham and Greensboro alone, there are approximately 400 wet ponds installed. These ponds do serve some valuable purposes such as peak flow mitigation (flood control), but are dependent upon a water storage reservoir to function properly. It has been proposed previously – and attempted twice - to convert these existing wet ponds to wetland-like ponds that incorporate aquatic (or vegetated shelves) to improve TN and TP removal. Doing this however, necessitates that either (1) portions of the wet pond be filled in, therefore sacrificing original flow mitigation and sediment storage benefits or (2) that the ponds be expanded, which is highly unlikely with these “landlocked” ponds. There is, however, a technology that appears to address both of these concerns: floating wetland islands. Floating wetlands, made partly of recycled plastic, have been shown in trials in the western United States to improve waste water concentrations of nitrate and phosphate. So, they hold promise for stormwater nutrient removal. They, however, have yet to be tested for stormwater applications and have not been used in the Eastern United States. An obvious benefit of the islands is that they do not require earthwork to be conducted in the wet pond and they do not require additional space to be created for them to float. Floating Islands International has reduced the cost of their product by 25% for this project. The goals of this study are three-fold: (1) install demonstration floating wetlands in two ponds in the City of Durham, (2) monitor the effectiveness of the retrofitted wet ponds (which includes establishing a baseline of the pre-retrofitted ponds), and (3) disseminating the information gained from this demonstration/ study through workshop/tours and a floating wetland island factsheet to be posted on the BAE stormwater website.
20. A detailed description of the project. Note: if project entails developing or implementing a Watershed Restoration Plan, see section 25. Expand space, if necessary Two ponds operated by the City of Durham have been pre-selected to be retrofit with floating wetland islands. One wet pond is located on the Hillandale Golf Course immediately adjacent to (and receiving runoff partially from) Interstate 85. The pond is pictured in Figure 1. It is approximately 1 acre at normal pool.
NC Application for Section 319 NPS Pollution Control Grant
Figure 1. I-85 wet pond (left) and DATA wet pond (right) in Durham, NC. The second pond is located at the Durham Area Transit Authority (DATA) bus terminal and is approximately 0.25 acres in size at normal pool. This pond is pictured in Figure 1. The ponds will be monitored for year (inlet and outlet concentrations) prior to the installation of floating wetland islands to establish a baseline pond efficiency. This performance will later be compared to that of the retrofitted wet ponds. After a year of monitoring, floating wetland islands will be installed in the wet ponds as a retrofit. Examples of the floating wetlands are shown in the pictures below.
Figure 2. Floating wetland islands in a wastewater polishing pond (left) and an example of the root structure intertwined among the recycled plastic lattice. Once established, the floating wetland / wet pond retrofits will be monitored (at the same locations identified previously) for an additional year. During this time, workshops and/or field tours will take designers to the wet pond retrofits for observation and a design guidance factsheet will be written (assuming the systems do improve the quality of water in the pond effluent). Based upon the factsheet, NC State faculty will submit a NC DENR Stormwater BMP design manual addendum (to be posted at NC DENR’s discretion) that details how floating wetland islands should be used and suggests an amount of credit that should be awarded to this practice. The end result of this guidance, if the floating wetland islands prove successful at reducing nutrient concentrations, would be the adoption of floating wetlands as one of the preferred retrofit tools in North Carolina.
21. Monitoring/Environmental Data Collection Describe in section below how project data will be used (i.e. demonstrate effectiveness of BMPs installed, calculate load reductions, data to be used for TMDL development, data to be used for State use support purposes, etc.). If monitoring is needed to document a demonstration project or water quality improvement, a Quality Assurance Project Plan (QAPP) will be required (reviewed and approved by DWQ). For guidance and additional information, visit: http://www.epa.gov/owow/monitoring/volunteer/qappcovr.htm
NC Application for Section 319 NPS Pollution Control Grant
Data will be collected at two locations in both ponds: the main inlet and the sole outlet. The samples collected will be flow weighted composites at each location. Sampling units such as ISCO 6712’s and ISCO 6712R’s will be used to collect the samples. Flow weighting will be measured by an associated bubbler or flow meter. The exact flow measurement system will be determined during the first quarter of the study. Both tipping bucket and manual rain gages will be located at each pond location. Samples will be collected by either an NCSU-BAE technician (primarily) or by personnel with the City of Durham (secondarily) and taken to the City’s waste water treatment plant for chemical analysis. Samples will be collected within 24 hours of a storm event and refrigerated if not analyzed immediately. Approximately 15 storm events from each configuration (pre-retrofit v. post retrofit) and pond (I-85/ Hillandale and DATA) will be chemically analyzed. (This equates to 60 samples total.) Analytes for each sample include: TKN, NO2-3-N, NH4-N, TP, Dissolved-P, and TSS. TN will be determined by adding TKN and NO2-3-N concentrations. Inlet and outlet pH will also be measured at the times of sample collection. Data will be sent to NCSU faculty for analysis. It is expected that statistical analysis will be conducted using NCSU-supported SAS ™ software. The exact statistical tests to be used have yet to be determined.
22. Public Involvement Public involvement by NCSU faculty is limited to the training events to be hosted in or adjacent to the Jordan Lake Watershed. At least two site visits by design professionals to the floating wetland retrofits will occur. Selection of the project locations will involve local officials, including the superintendent of Hillandale Golf Course. Information collected by this project will be available to the public by way of the existing BAE stormwater team website: www.bae.ncsu.edu/stormwater. Also, it is expected that the City of Durham will post information on the project on its stormwater website (http://www.ci.durham.nc.us/departments/works/stormwater.cfm). In particular, a factsheet will be written on the viability of floating wetland islands as a retrofit alternative. The design profession will also be made aware of findings, if they are positive regarding nutrient removal, by way of NC DENR’s stormwater BMP Design Manual. If the floating wetlands work, an addendum to the manual will be provided by NCSU faculty to be posted at the discretion of NC DENR personnel.
NC Application for Section 319 NPS Pollution Control Grant
23. Project Measures of Success or “Measurable Results Anticipated from the Project” 1. Baseline Pond performance will be evaluated for one year. 2. Retrofitted pond (with floating wetland islands) will be evaluated for one year. 3. If the performance found in #2 above is superior to that of #1 above, the use of floating wetland islands will be recommended by NC State faculty as a possible retrofit. 4. The use of floating wetland islands in existing ponds, perhaps initially in Durham and Greensboro, because they are most immediately impacted by the Jordan Lake rules, would be expected to increase. The potential use is substantial. 5. An increase in the use of floating wetland islands in #4 above would lead to reductions in (at least some) nutrient loads from urban surfaces. 6. Hundreds of design professionals will be made aware of this potential retrofit, assuming it performs reasonably well, leading to potential adoption across the state of North Carolina.
24. List Project Outputs and Products (All 319 funded projects are required to submit Quarterly Progress Reports and a detailed Final Project Report, which must be submitted at least *30 days before* the end of the contract for DWQ review and approval.) 1. Two conventional stormwater wet ponds will be monitored for 1 year. 2. Two demonstration ponds will be retrofitted with floating wetland islands. 3. The retrofitted floating island ponds will be monitored for 1 year. 4. Two classroom training events for design professionals will highlight these retrofits. There will also be two site visits for design professionals made. 5. A factsheet will be written detailing the use, design, and performance of the floating wetland ponds, provided the systems are shown to work. If the floating islands do not appear to function as intended, a short report will be made to the public discouraging the use of this particular retrofit. Either publication will be posted on the BAE Stormwater Website. 6. Guidance, in the form of a Stormwater BMP Design Manual addendum, will be given to NC DENR personnel upon completion of the project either (1) recommending the use of this BMP retrofit (with design guidelines and nutrient removal credit), or (2) discouraging the adoption of this product as a BMP retrofit. 7. A final project report.
25. References and Literature Cited Hathaway, J.M, W.F. Hunt, J.T. Smith, and A. Johnson. 2007a. Pierson Pond Final Monitoring Report. City of Charlotte. Hathaway, J.M, W.F. Hunt, J.T. Smith, and A. Johnson. 2007b. Shade Valley Pond Final Monitoring Report. City of Charlotte.
