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HomeMy WebLinkAbout2006-285 c� 2 q . vv INDIAN RIVER COUNTY BEACH PRESERVATION PLAN WORK ORDER NO. 4 TO THE PROFESSIONAL SERVICES AGREEMENT BETWEEN APPLIED TECHNOLOGY AND MANAGEMENT, INC. AND INDIAN RIVER COUNTY, FLORIDA Pursuant to the Professional Services Agreement (MASTER AGREEMENT) dated December 13 , 2005, by and between INDIAN RIVER COUNTY , a political subdivision of the State of Florida, hereinafter referred to as the COUNTY, and APPLIED TECHNOLOGY AND MANAGEMENT, INC., with a Florida office in WEST PALM BEACH, FL ., hereinafter referred to as the CONSULTANT, this WORK ORDER No. 4 is an extension of and hereby becomes a part of the MASTER AGREEMENT as follows : SECTION I - PROJECT DESCRIPTION Services included in this Work Order are specified in the attached Scope of Work included as Exhibit "A" SECTION II - COUNTY OBLIGATIONS The COUNTY agrees to provide the CONSULTANT with the following material, data, or services as required in connection with the work to be performed under this Work Order: A. Currently available studies, survey drawings, plans, calculations, and other data pertinent to the Project. B . Review and comment on CONSULTANTS work in a timely fashion. SECTION IH SCOPE OF SERVICES CONSULTANT will provide services as specified in the attached Scope of Work included as Exhibit `B" SECTION IV - TIME FOR COMPLETION After the COUNTY issues a written authorization to proceed, all work shall be completed on or before November 1 , 2006 unless project delays extend the time of completion. H:UOBS\06-XXXX IRC MITIGATION REEF MON\SCOPE AND BUDGET ATM WORK ORDER 94.DOC SECTION V COMPENSATION The COUNTY agrees to pay, and the CONSULTANT agrees to accept fees for services rendered according to the attached Cost Proposal included as Exhibit `B". SECTION VI - PARTIAL PAYMENTS The COUNTY shall make monthly partial payments to the CONSULTANT for all authorized work pertaining directly to this project performed during the previous calendar month The CONSULTANT shall submit invoices monthly for services performed and expenses incurred pursuant to this Agreement during the prior month. The CONSULTANT shall submit duly certified invoices to the Director of the Public Works Department. For lump sum line items, the amount submitted shall be the prorated amount due for all work performed to date under this phase, determined by applying the percentage of the work completed as certified by the CONSULTANT, to the total due for this phase of the work. For each invoice, the CONSULTANT shall certify that the total invoice amount is correct. The amount of the partial payment due the CONSULTANT for the work performed to- date under these phases shall be an amount calculated in accordance with the previous paragraph, less ten percent ( 10%) of the invoice amount thus determined, which shall be withheld by the COUNTY as retainage, and less previous payments, The ten percent ( 10%) retainage withheld shall be paid in full to the CONSULTANT by the COUNTY, within forty-five days after the date of final acceptance of the work by the Director of Public Works. Billings shall be payable in accordance with the provisions of the Local Government Prompt Payment Act, Florida Statutes section 218 .70 et. seq. at not less than monthly intervals. No payment shall be made unless the Public Works Director has received and approved the work products required under the " Scope of Services" herein. H:\JOBS\06-XXXX1RCNHT1GAT1ON REEF MON\SCOPE AND BUDGE'MTM WORK ORDER #4.DOC SECTION VII - RELATIONSHIP TO MASTER AGREEMENT AND LAWS OF FLORIDA Pursuant to paragraph 1 .4 of the Agreement, nothing contained in any WORK ORDER shall conflict with the terms of the Agreement and the terms of the Agreement shall be deemed to be incorporated in each individual WORK ORDER as if fully set forth herein . IN WITNESS WHEREOF the parties hereto have executed these presents this 22nd day of August 2006 . APPLIED TECHNOLOGY INDIAN RIVER COUNTY, FLORIDA AND MANAGEMENT, INC . BOARD OF COUNTYMISSIONERS 400 S. AUSTRALIAN AVE. � > > ' .• a�� WEST PALM BEACH, FL 33401 i'a • . n ;HJ; . BY : B a" I s Michael Jenkins, Ph.D . Arthur R.Neuergetf` oo Coastal Team Leader Chairman JEFFREY K. BARTON, CLERK Attest: APPROVED BY Approved by BCC August 22 ? nn6 o eph A. 12aird, County Administrator Approved as to form and legal so' 'ciency : arian E. Fell Assistant County Attorney HAJOBS\06-XXXX IRC MITIGATION REEF MOMSCOPE AND BUYGEI\ATM WORK ORDER 44.DOC EXHIBIT "A" SCOPE OF SERVICES H:UOBS\06-YM IRC MITIGATION REEF MON\SCOPE AND BU2pGE nATM WORK ORDER N4.DGC Exhibit A Scope of Work Indian River County Beach Nourishment Project Sectors 1 and 2 Addendum to Mitigation Plan- July 11 , 2006 Mitigation Reef Monitoring The permit for Indian River County Sector 1 and 2 Beach Restoration (Permit No. 0166929-001 -JC) required construction of five acres of nearshore artificial reef as mitigation for impacts to the expected burial of 3 . 8 acres of nearshore hardbottom . Approximately 3 .6 acres of impact was expected to high-relief reef habitat dominated by sabellariid worm, and 0.2 acres of low-relief, algae-dominated reef were predicted to be impacted by the beach restoration project. Two types of mitigation reef were constructed as mitigation for the two habitat types : high relief, high complexity (HRHC) reef and low relief, low complexity (LRLC) reef. The high relief, high complexity reef was designed to have a vertical relief of 3 to 6 feet, and boulders were partially stacked to achieve this vertical relief. The low relief, low complexity reef was designed to mimic a vertical relief of 1 to 2 feet using a single layer of boulders. The LRLC mitigation reef was originally sited inshore of the HRHC mitigation reef. However, the location of the LRLC reef was modified due to sand movement during Huff icanes Frances and Jeanne in September 2004, which created shallower water depths and thicker sand layers at the nearshore reef location. The LRLC reef was moved offshore in alignment with the remainder of the HRHC mitigation reef. Elimination of the gap between the two reef types did not relieve the County from its obligation to offset the loss of habitat function provided by both community types, and the monitoring is designed to evaluate the performance of both reef types as replacement habitat for the impacted reef type. Permit No. 0166929-001 -JC required that, if construction of the mitigation reef was completed after the construction of the beach fill, the mitigation area would be increased by 0.20 acres per year. Construction of the mitigation was not completed until the summer of 2005 . Therefore, a total of 4 .96 acres of HRHC reef, consisting of 36, 120 ft. x 50 ft. units, was constructed; and a total of 0.28 acres of LRLC reef, consisting of two, 120 ft. x 50 ft. units, was constructed, between approximately R-91 + 600 ft and R-93 + 700 ft. The LRLC reef is located at the southern end of the reef at R-93 + 700 ft. in water depths ranging from - 13 to - 16 ft. NGVD, and the HRHC reef is located in water depth ranging from - 14 ft to - 18 ft. (NGVD). Reef units are separated by 10 foot spacing to create a 20% sandy bottom within the site for a total of approximately one acre of sandy bottom. Modification No. 0129291 -006-EM authorized the placement of an additional 1 .65 acres of LRLC reef immediately south of the LRLC mitigation reef between R-93 +700 ft. and approximately 100 ft south of R-94. This additional LRLC reef was constructed in water depths between - 16 ft. and - 18 ft NGVD. The Department agreed to consider future 1 requests by Indian River County to use this additional artificial reef as mitigation for additional impacts to hardbottom communities, provided that it has not already received mitigation credit for other impacts. Therefore, this additional, LRLC reef will be monitored in conjunction with the mitigation reef to evaluate its performance as replacement habitat for impacted benthic communities and fish populations. Monitoring Schedule A total of three annual monitoring events will be conducted (through Year 3 in 2008) during the summer months (May 1 through September 30). The first annual monitoring event of the mitigation artificial reef (Year 1 ) will be conducted during August/September 2006, approximately one year after completion of artificial reef construction. Mitigation Reef Maintenance During each annual monitoring event, DGPS positioning of the perimeter of the reef will be verified and recorded, and measurements of vertical relief will be performed at a minimum of sixteen perimeter points by measuring the distance from the top of the reef to the base of the reef (sand). A shore-parallel digital video transect shall be performed along the length of the artificial reef for documentation of reef structure, sand spaces, and compliance with boulder specifications . Annual inspections will continue for the life of the beach fill project to verify that the required acreage and vertical relief has been maintained. If the inspection reveals that the acreage or typical relief of the reef has been significantly reduced by subsidence, scour or sand accretion, additional materials will be added as necessary to restore the reef to the as-built design. Permanent Cross-Shore Transects: Video and Still Photographic Documentation Six, 20-meter long cross-shore transects shall be located on the mitigation artificial reef. Three transects shall be located on the high-relief artificial reef structure and three shall be located on the low-relief structure (one on the low-relief module constructed as mitigation, and two on the additional low-relief reef immediately south of the mitigation reef). During the baseline monitoring to be performed during the summer 2006 (Year I monitoring), the transects shall be permanently established using pins to mark each 0 point, 10 meter point, and 20 meter point. The 0 point shall be located on the top (i.e. crest) of the boulder along the nearshore reef edge on the horizontal surface. The pins shall extend a minimum of 20 cm above the hardbottom surface. DGPS positioning will be obtained for each 0 mark, 10 meter mark, and 20 meter mark for each transect. The 20-meter transects shall be sampled using digital video in progressive scan mode. The diver shall swim at a speed of approximately 20 meters/6 minutes (-3 . 5 meters/minute) with a constant camera distance of 25 cm above bottom during the portions of the transect to be quantitatively analyzed. The video transects shall be 2 reviewed during the course of the survey to ensure that there are no gaps in the data due to diver error and that the quality of the video is acceptable for video analysis . Any missing video transect data or poor quality video shall be refilmed during the course of the monitoring event. Landscape panoramic views shall be recorded with the digital video camera at the start and end of each transect. Close-up digital still video/photographs shall be obtained of representative benthos along the transect to aid in identification during video analysis. Still photographs shall be obtained using the digital video camera or digital still camera at all quadrat locations, areas of scleractinian coral recruitment along the transect or adjacent to transect (within underwater visibility during transect establishment), and changes in dominant benthos along the transect. Voucher sampling of macroalgae shall be conducted to assist with video identification of macroalgae genera. Video Transect Analysis During each monitoring event, the six, 20-meter transects shall be quantitatively analyzed using PointCount' 99 based upon the random point count method for estimation of percent cover from digitally frame-grabbed underwater video images. Each 20-meter segment shall result in approximately 100 non-overlapping frame-grabbed images . A unique set of 20 random points shall be generated at the time of frame-grabbing and stored with each set of images so that the same points are assessed during each monitoring event. This also ensures that each observer examining a particular image will view the same points, allowing for the assessment of inter-observer variability and quality assurance and control of the image analysis. An estimate of percent cover (projected to the surface) will be performed for each image according to the following functional groups/categories : scleractinian corals (to the genus level), octocorals, macroalgae (to the genus level if possible, if not, then according to the following breakdown : calcareous red, calcareous green, fleshy brown, fleshy red, fleshy green), microalgae/cyanobacteria, sponges, tunicates, hydroids, sabellariid worm, zoanthids, urchins, holothuroids, and substrate. Substrate shall be broken down into the following categories: unconsolidated substrate (rubble/shell hash, rhodoliths), sediment over hardbottom, sediment over benthos (where the underlying fauna cannot be identified due to the sediment cover), and sand. Quadrat sampling During each survey, a 0.25 square meter gridded quadrat will be sampled by the diver/biologist at a three point-intercept locations along each of the transects. The first quadrat will be located at the 0 mark of the transect, along the vertical/sub-vertical face of the landward edge of the mitigation reef. A second quadrat will be located at the top of the reef at the horizontal face, and the third quadrat shall be placed at the 20-meter mark along the transect. Additional quadrat sampling shall occur along each transect to capture changes in benthic landscape (species dominance/abundance and areas of stony coral and/or octocoral recruitment along or immediate adjacent to the transect). 3 Within each quadrat, visual estimate of percent cover and genus/species identification shall be performed in-situ for the following functional groups: macroalgae (overall percent cover and identification/percent cover of two dominant species within quadrat), microalgae/cyanobacteria, encrusting calcareous algae, sponges (genus level), with a separate assessment of percent cover of boring sponge (Cliona spp), tunicates (with identification of dominant genera), zoanthids (genus level), hydroids, sabeliariid worm (Phragmatopoma lapidosa), octocorals (genus level), and scleractinian corals (species level). Individual counts shall be conducted for all octocorals, scleractinian corals, sponges (not including Cliona spp. which shall be assessed for percent cover), solitary tunicates, urchins, and holothuroids within the quadrat. Scleractinian corals and octocorals shall also be assessed for size class distribution: size class 1 : < 5 cm diameter of scleractinian/height of octocoral; size class 2 : 5 cm to 15 cm diameter of scleractinian/height of octocoral ; size class 3 : 15 to 25 cm diameter of scleractinian/height of octocoral; and size class 4 : >25 cm diameter of scleractinian/height of octocoral). Maximum and average algal height of the two dominant macroalgal species shall also be recorded. Average algal height shall be estimated by five measurements . Percent cover of substrate, unconsolidated substrate (rubble, shell hash, rhodoliths), sand and sediment over hardbottom shall be recorded. The maximum physical relief of hardbottom from the lowest point to highest point in the quadrat, shall be measured to the nearest centimeter. Sediment accumulation measurements will be performed within all quadrats located on the fiat (horizontal) surface of hardbottom along each transect. Five random measurements of sediment thickness will be performed within each quadrat using - a ruler to measure to the nearest cm. Continuous layers of sediment less than 1 cm covering the hardbottom surface and benthos shall be recorded . Benthic Data Analysis The methodology for monitoring the benthic community succession on the mitigation artificial reef is identical to the monitoring of the natural hardbottom for the renourishment of Sectors 1 and 2 . The artificial reef benthic communities will be compared to the natural hardbottom communities for each reef type (high relief and low relief) using community parameters such as percent cover, species richness, species dominance, sediment cover, average algal height, and substrate categories. These parameters will be compared between the artificial reef and natural reef for each reef type by one-way ANOVA tests. Data will be transformed as necessary to meet ANOVA assumptions and non-parametric tests (Mann-Whitney U test, Wilcoxon Rank-Sum) will _ be used on the original diversity data if the data do not distribute normally after transformation. To detect differences between the artificial reef and natural reef within each reef type, the Bray-Curtis similarity index based on the percent cover will be used. If there is dominance by a few, highly abundant taxa; a log transformation will be used to reduce their contribution to similarity and to strengthen the contribution of the less common taxa. 4 Fish Surveys Fish population evaluations will be based on visual censuses conducted separately on HRHC and LRLC mitigation reefs and high and low relief control reefs . The point-count method (Bohnsack and Bannerot 1986) will be used for fish assessment. This method has the advantage of gathering quantitative data in a relatively short time in a very repeatable pattern that is relatively insensitive to differences in habitat structure. Each census will have a duration of 5 minutes and a radius (the distance from the stationary observer) of 10 feet. Ten censuses will be collected on each of the four reef types . Data from these types of censuses is rarely normally distributed; therefore, the Wilcoxon Rank-Sum or a similar nonparametric test will be used for significance testing. The criteria for mitigation reef success will be a finding of no significant difference at p=0 .05 between reef type pairs (HRHC vs . high relief control and LRLC vs. low relief control). Juvenile sea turtle surveys At the request of the Florida Fish and Wildlife Conservation Commission (FWCC), mitigation reef monitoring will include the following protocol to assess the sea turtles utilization, particularly juvenile green turtles, of the mitigation reefs. During each annual monitoring event, the vessel will anchor in the center of the mitigation reef array . For a period of 30 minutes, two observers, positioned in a tower or otherwise at the highest point on the vessel, shall search the 360 degree area around the boat and count all surfacings by sea turtles in the vicinity and identify the species and life history stage. These data shall be graphically compared with both previous results for the mitigation reef and with concurrent sampling at the mitigation reef monitoring control reef areas. Deliverables/Reporting Requirements All data deliverables shall be provided within 60 days after completion of the survey. Data deliverables include all digital video transects on compact disk, frame-grabbed images from all transects on compact disk, PointCount files and associated data (i.e. PTS files, MGR files, cd.dat files), Excel spreadsheets of Point Count data (raw data and summary files), and Excel spreadsheets of in-situ quadrat data. The monitoring reports, with appropriate graphics/tables, statistical analysis of the collected data and comparison of mitigation reef habitat to natural hardbottom, shall be provided within 90 days after completion of the survey. Reports shall be provided to FDEP, BBCS, in both hard copy and digital format. Notification Requirements: Adverse weather conditions and Contingency Monitoring Plan If adverse weather conditions are encountered which do not allow for field operations, the biological consultant shall maintain a log of all attempts to conduct the survey and weather/visibility conditions which prevented collection of the required data. If the biological monitoring team encounters poor visibility conditions that prevent collection 5 of data while they are in the field, conditions shall be documented with digital video at the site . After demonstration of diligence and repeated failed attempts by the consultant to collect the monitoring data according to the permitted protocol, if the required monitoring of the mitigation artificial reef is not completed by September 30th due to the persistently adverse visibility conditions, the County or its designated consultant shall coordinate with Department staff to determine if an extension of time is needed to complete the monitoring or if the minimum monitoring effort necessary for evaluation of the artificial reef habitat has been completed. At a minimum , the survey of the perimeter and vertical relief of the mitigation reef; the six, benthic, digital video transects; and the juvenile turtle utilization survey shall be completed during each annual monitoring event. 6 EXHIBIT ` B ' COST PROPOSAL H:UOBS\06-XXXX IRC MITIGATION REEF MON\SCOPE AND BUYGETIATM WORK ORDER N4.DOC &him a Work Order 4 - Exhibit B Mitigation Reef Monitoring ATM Management ATM Other Task Description and Breakdown CwstalEco-Grouj Total Subcontractor fee on ATM Total Direct Costs Total Task Subcontractors Labor (ODC's) & Budget Equipment Task 1 1 .1 Establish Transects and Pin Installation $33,700 $33,700 $3 370 $2,970 $0 $40,040 Total,Cost ; - .t*Wj00 *'K`..✓. ,f .$33700 r ,....,�,... .43{370 u$2,870 t'� =.n$f13 : 3°,9¢10;040 Torai_. o ". 33;700 'r a.. EXHIBIT ` C Project Schedule The field work will be completed in September 2006 and the report submittal will be in October 2006. All aspects of this Work Order will be completed in October 2006. H:UOBS\06-XXXX IRC MITIGATION REEF MOMSCOPE AND BUBGET\ATM WORK ORDER 44.DOC