ADDENDUM #2 WATERSHED IMPROVEMENTS ON AN ANNUAL CONTRACT RP031-18

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1 November 29, 2018 ADDENDUM 2 WATERSHED IMPROVEMENTS ON AN ANNUAL CONTRACT RP Q1. Do contractors not need to be on the Watershed Improvements Pre-Qualifications List to submit on the RP Watershed Improvements on an Annual Contract? A1. No, you do not have to be on the Watershed Improvements Pre-Qualification List to submit a proposal. Note attached pricing from the last contract Gwinnett County had for watershed improvements. These prices were obtained through a bid process vs. the request for proposal process. This addendum should be acknowleed on the Proposal Signature Form (Page 28) of the Proposal. Failure to do so may result in your bid being deemed non-responsive. Thank you, Shelley McWhorter Shelley McWhorter, CPPB Purchasing Associate III Attachment: Bid Pricing

2 BID TABULATION PAGE 1 OF 9 LABOR AND EQUIPMENT RATES FOREMAN 200 HR $49.61 $9, LABORER 1000 HR $27.56 $25, SURVEYOR 200 HR $82.69 $15, HEAVY EQUIPMENT 4.A TRACKED EXCAVATOR W/HYDRAULIC THUMB (30,000-50,000 LB) 16 HR $ $2, B MINI EXCAVATOR 40 HR $ $3, C RUBBER TIRE LOADER 16 HR $ $1, D SKID STEER LOADER (3,500 LB) 40 HR $ $3, E DUMP TRUCK (SINGLE AXLE) 8 HR $55.13 $ F DUMP TRUCK (MULTI AXLE) 8 HR $ $1, G TRACKED DUMP TRUCK 8 HR $ $ H BOOM TRUCK CRANE (12 TON) 8 HR $11.03 $80.00 CONSTRUCTION FACILITIES PROJECT SIGN 5.A PROJECT SIGN LARGE 3 EA $ $1, B PROJECT SIGN - SMALL 20 EA $ $12, C INTERPRETATIVE 2 EA $ $1, D MITIGATION BANK BOUNDARY 10 EA $ $4, REMOVAL S SAW CUTS IN EXISTING PAVEMENT 100 LF $4.41 $ REMOVAL OF EXISTING DRAINAGE STRUCTURES 5 EA $ $ REMOVE EXISTING PIPE, ALL TYPES AND SIZES 50 LF $1.65 $ DEBRIS REMOVAL 20 LOAD $ $3, CAST IN PLACE CONCRETE CONCRETE STRUCTURES, CAST IN PLACE, INCLUDING REINFORCING STEEL 10.A Class AAA (5000 psi) 5 CY $ $2, B Class AA1 (4500 psi) 5 CY $ $2, C Class A (3000 psi) 5 CY $ $1, D Class B (2200 psi) 5 CY $ $ CONCRETE STRUCTURES, CAST IN PLACE, WITHOUT REINFORCING STEEL 11.A Class AAA (5000 psi) 5 CY $ $1, B Class AA1 (4500 psi) 5 CY $ $2, C Class A (3000 psi) 5 CY $ $1, D Class B (2200 psi) 5 CY $ $ GROUTING (NON-PRESSURE) 10 CY $ $2,750.00

3 BID TABULATION PAGE 2 OF 9 CLEARING AND EARTHWORK 13.A CLASSIFIED STONE 75 CY $55.13 $3, B WELL GRADED RIP RAP 100 CY $62.84 $5, GEOGRID REINFORCEMENT 150 SY $2.21 $ CLEARING AND GRUBBING -MULCH ON- 5 AC $4, $22, CLEARING AND GRUBBING -HAUL OFF 1 AC $9, $8, SELECTIVE TREE PRUNING 17.A LIMBS < 8 HEIGHT 40 EA $18.19 $ B LIMBS > 8 HEIGHT 10 EA $49.61 $ TREE REMOVAL 18.A EA $ $100, B > EA $ $45, STUMP GRINDING 19.A EA $55.13 $ B B > EA $55.13 $ ORANGE BARRIER FENCE LF $0.83 $9, TEMPORARY CHAIN LINK FENCE 100 LF $11.03 $1, EXCAVATION AND BACKFILLING 8000 CY $13.23 $96, IMPORTED FILL 2500 CY $11.03 $25, ADDITIONAL EXCAVATION COST WHERE DEPTH TO TOP OF PIPE IS GREATER THAN A DEPTH TO TOP OF PIPE 40 LF $22.05 $ B GREATER THAN 15 DEPTH TO TOP OF PIPE 40 LF $22.05 $ ROCK EXCAVATION (0-100 CY/PROJECT) 20 CY $ $2, SPOIL REMOVAL 3500 CY $13.78 $43, FLOWABLE FILL 3 CY $ $ NATURAL DRAINAGE SYSTEM (NDS) SOIL 150 CY $47.41 $6, EROSION AND SEDIMENT CONTROL CONSTRUCTION EXIT 5 EA $ $4, SILT FENCE TYPE C 2500 LF $3.31 $7, COFFERDAM 100 SF $49.61 $4, SILT BAG 2 EA $1, $3, ROCK FILTER DAM 10 CY $ $1, ROCK CHECK DAM 10 CY $ $1, INLET SEDIMENT TRAP 10 EA $82.69 $ SWAMP MAT 10 EA $2, $20, COIR WATTLES 100 LF $11.58 $1, COIR ROLLS 100 LF $18.74 $1,700.00

4 BID TABULATION PAGE 3 OF TEMPORARY SEEDING 6 AC $ $1, STRAW BALES 100 EA $7.72 $ GEOTEXTILE WOVEN 200 SY $2.76 $ GEOTEXTILE - NON-WOVEN 100 SY $3.86 $ COIR BLANKET SY $9.10 $99, COIR MATTRESS 1500 SY $8.82 $12, STABILIZATION S STABILIZATION 5 CY $ $ PERMANENT SOIL REINFORCING MAT 100 SY $4.69 $ GABION STRUCTURES 20 CY $49.61 $ STONE RIP RAP TYPE I, 24" IN PLACE 150 CY $58.43 $7, STONE RIP RAP TYPE III, 12" IN PLACE 700 CY $55.13 $35, STONE GROUTED RIP RAP, 12" IN PLACE 10 CY $77.18 $ STEEL SHEET PILES 80 SF $ $10, VINYL SHEET PILES 80 SF $ $9, STREAM AND WETLAND CONSTRUCTION LOG ON-SITE 6 EA $ $3, LOG IMPORTED 54.A FT FT 10 EA $ $8, B FT - 50 FT 5 EA $1, $5, FIELD STONE BOULDER 55.A EXTRA LARGE 7 CY $ $1, B LARGE 9 CY $ $2, C MEDIUM 9 CY $ $2, D SMALL 12 CY $ $3, GRANITE QUARRY STONE BOULDER 56.A EXTRA LARGE 3 CY $ $ B LARGE 5 CY $ $1, C MEDIUM 5 CY $ $1, D SMALL 10 CY $ $2, RIVER COBBLE 10 CY $ $2, RIFFLE ROCK 8 CY $ $1, RIVER PEBBLE 5 CY $ $ GROUT FOR INSTREAM STRUCTURES 25 CF $49.61 $1, STONE TOE PROTECTION & BENDWAY 800 CY $7.72 $5, ROOT WAD REVETMENT 25 LF $71.66 $1, CROSS-VANE 63.A EXTRA LARGE 265 LF $ $69, B LARGE 415 LF $ $89, C MEDIUM 430 LF $ $98, D SMALL 300 LF $ $69,000.00

5 BID TABULATION PAGE 4 OF J-HOOK VANE 64.A EXTRA LARGE 100 LF $ $20, B LARGE 140 LF $ $19, C MEDIUM 150 LF $ $23, D SMALL 110 LF $ $17, BOULDER VANE 65.A EXTRA LARGE 8 LF $ $2, B LARGE 16 LF $ $3, C MEDIUM 10 LF $ $2, D SMALL 20 LF $ $4, J-HOOK LOG VANE 66.A EXTRA LARGE 125 LF $ $17, B LARGE 180 LF $ $22, C MEDIUM 175 LF $ $31, D SMALL 115 LF $ $23, LOG VANE 67.A EXTRA LARGE 10 LF $0.00 $1, B LARGE 12 LF $ $1, C MEDIUM 14 LF $ $1, D SMALL 8 LF $ $ STEP POOL VANE 68.A EXTRA LARGE 140 LF $ $39, B LARGE 220 LF $ $59, C MEDIUM 240 LF $ $64, D SMALL 160 LF $ $43, LOG SILL 69.A EXTRA LARGE 12 LF $ $1, B LARGE 14 LF $ $1, C MEDIUM 8 LF $ $ D SMALL 15 LF $ $1, CONSTRUCTED RIFFLE - WITH SILLS 8 CY $ $3, CONSTRUCTED RIFFLE 510 CY $ $71, TOE WOOD PROTECTION 10 SY $33.08 $ LIVE FASCINE 125 LF $13.78 $1, STONE CASCADE 74.A EXTRA LARGE 8 SY $ $2, B LARGE 10 SY $ $3, C MEDIUM 18 SY $ $6, D SMALL 6 SY $ $2, SOIL ENCAPSULATED LIFTS (SEL) 1900 LF $25.36 $43,700.00

6 BID TABULATION PAGE 5 OF SOIL ENCAPSULATED LIFTS (SEL) WITH COIR FIBER BLOCK 110 LF $25.36 $2, STORMWATER OUTFALL STEPS 20 LF $ $4, SITE RESTORATION AND LANDSCAPING S ASPHALT PAVING RESURFACING (INCLUDING MILLING) 200 SY $24.81 $4, CURB RESTORATION 79.A NEW 6" X 24" X 12" HIGH BACK 50 LF $22.05 $1, B NEW 6" X 30" X 12" HIGH BACK 10 LF $22.05 $ C NEW 6" X 24" X 10" ROLL BACK 10 SY $22.05 $ SIDEWALK RESTORATION 10 SY $55.13 $ CHAIN LINK FENCE 81.A HEIGHT 160 LF $13.78 $2, B HEIGHT 110 LF $17.09 $1, C HEIGHT 30 LF $19.29 $ SPLIT RAIL FENCE 82.A RAIL FENCE 120 LF $14.06 $1, B RAIL FENCE 120 LF $15.71 $1, WOODEN PRIVACY FENCE 83.A HEIGHT 200 LF $15.44 $2, B HEIGHT 80 LF $18.74 $1, DECORATIVE FENCE 84.A HEIGHT 40 LF $ $6, B HEIGHT 10 LF $ $1, SEGMENTAL WALL (FACE) 85.A MODULAR BLOCK 60 LF $23.15 $1, B PERMANENT FIELDSTONE 60 LF $20.95 $1, HAND GRADING 1500 SY $1.10 $1, SAND FILL 150 CY $88.20 $12, SOIL AMENDMENT SY $0.44 $4, TOPSOIL 100 CY $20.95 $1, SODDING 800 SY $8.82 $6, CONTAINER PLANTING 91.A GALLON 250 EA $9.37 $2, B GALLON 250 EA $27.56 $6, C GALLON 250 EA $49.61 $11, LIVE PLANTING 92.A PLUG 75 SY $44.10 $3, B BARE ROOT 80 SY $44.10 $3, TREE 145 EA $ $31, UPLAND SEEDING 5 AC $ $1,000.00

7 BID TABULATION PAGE 6 OF WETLAND SEEDING 1 AC $ $ WOOD MULCH 96.A BARK NUGGETS 850 SY $2.76 $2, B SHREDDED BARK 210 SY $2.76 $ LIVE STAKING 600 EA $2.21 $1, LIVE WHIP 400 EA $5.51 $2, LIVE POLE 200 EA $4.69 $ PLANT PROTECTION 145 EA $14.06 $1, B INVASIVE SPECIES CONTROL PHYSICAL REMOVAL 1 AC $6, $5, B INVASIVE SPECIES CONTROL CHEMICAL TREATMENT 1 AC $4, $3, DRAINAGE STRUCTURES PLAIN PVC SCH 80, IN PLACE, (0'-10' DEPTH TO TOP OF PIPE) 103.A " PVC PIPE 25 LF $36.66 $ B " PVC PIPE 25 LF $46.31 $1, C " PVC PIPE 25 LF $61.74 $1, PERFORATED PVC SCH 80, IN PLACE, (0'-10' DEPTH TO TOP OF PIPE) 104.A " PVC PIPE 25 LF $38.31 $ B " PVC PIPE 25 LF $47.41 $1, C " PVC PIPE 25 LF $63.06 $1, ASP, 16 GAUGE,IN PLACE, (0'-10' DEPTH TO TOP OF PIPE) 105.A " - 36" ASP 20 LF $ $2, B " - 72" ASP 20 LF $ $3, C " - 96" ASP 20 LF $ $3, RCP PIPE ANY CONFIGURATION 106.A IN 3 INCREMENTS 20 LF $27.56 $ B IN 3 INCREMENTS 20 LF $44.10 $ C IN 3 INCREMENTS 20 LF $47.68 $ D IN 3 INCREMENTS 20 LF $52.92 $ HDPE, IN PLACE, (0'-10' DEPTH TO TOP OF PIPE) 107.A " - 8" HPDE PIPE (PLAIN) 20 LF $16.54 $ B " - 8" HPDE PIPE (PERFORATED OR SLOTTED) 40 LF $17.64 $ C " - 24" HDPE PIPE 20 LF $40.79 $ D " - 36" HDPE 20 LF $66.15 $1, E " - 48" HDPE 20 LF $99.23 $1,800.00

8 BID TABULATION PAGE 7 OF F " - 60" HDPE 20 LF $ $2, FISH STOCKING 460 LBS $17.64 $7, CONCRETE FLUME 15 CY $ $6, CONCRETE FLUME WITH STONE INLAY 15 CY $ $7,500.00

9 BID TABULATION PAGE 8 OF HEADWALL, VARIOUS PIPE SIZES 111.A PRECAST HEADWALL FOR 18" - 36" PIPE 1 EA $ $ B PRECAST HEADWALL FOR 42" - 72" PIPE 1 EA $1, $1, C BRICK HEADWALL FOR 18" - 36" PIPE 1 EA $1, $1, D BRICK HEADWALL FOR 42" - 72" PIPE 1 EA $2, $2, E ROCK HEADWALL FOR 18" - 36" PIPE 1 EA $2, $2, F ROCK HEADWALL FOR 42" - 72" PIPE 1 EA $3, $3, BRICK CATCH BASIN 112.A GROUP 1 (GADOT 1033 / 1034) 10 VF $ $2, B GROUP 2 (GADOT 1033 / 1034) 10 VF $ $3, PRECAST CATCH BASIN 113.A GROUP 1 (GADOT 1033 / 1034) 10 VF $ $2, B GROUP 2 (GADOT 1033 / 1034) 10 VF $ $2, REPLACEMENT TOP FOR 1033/ VF $ $7, BRICK MANHOLE, TYPE 1 (GADOT 1011A) 10 VF $ $2, BRICK MANHOLE, TYPE 2 (GADOT 1011A) 10 VF $ $2, PRECAST MANHOLE, TYPE 1 (GADOT 10 VF $ $2, PRECAST MANHOLE, TYPE 2 (GADOT 10 VF $ $2, MANHOLE COVERS 10 EA $ $6, BRICK DROP INLET, GROUP 1 (GADOT 1019A) 10 VF $ $2, BRICK DROP INLET, GROUP 2 (GADOT 1019A) 10 VF $ $2, BRICK DROP INLET, GROUP 1 (GWINNETT P&D 610) 10 VF $ $2, BRICK DROP INLET, GROUP 2 (GWINNETT P&D 610) 10 VF $ $2, BRICK DROP INLET, GROUP 1 (GADOT 9031S/9031D) 10 VF $ $7, BRICK DROP INLET, GROUP 2 (GADOT 9031S/9031D) 10 VF $ $7, PRECAST DROP INLET, GROUP 1 (GADOT 1019A) 10 VF $ $2, PRECAST DROP INLET, GROUP 2 (GADOT 1019A) 10 VF $ $2, PRECAST DROP INLET, GROUP 1 (GWINNETT P&D 610) 10 VF $ $2, PRECAST DROP INLET, GROUP 2 (GWINNETT P&D 610) 10 VF $ $2,700.00

10 BID TABULATION PAGE 9 OF PRECAST DROP INLET, GROUP 1 (GADOT 9031S/9031D) 10 VF $ $2, PRECAST DROP INLET, GROUP 2 (GADOT 9031S/9031D) 10 VF $ $2, REPLACEMENT TOP FOR DI 610, W\RING & COVER 1 EA $ $ REPLACEMENT TOP FOR DI 1019A, W\FRAME & GRATE 1 EA $ $ REPLACEMENT TOP FOR DI 9031S/9031D, W\ STEEL PLATE 1 EA $1, $1, ROADWAY RESTORATION STREET CUT 135.A DETAIL A 41 SY $50.72 $1, B DETAIL B 41 SY $59.54 $2, C DETAIL C 17 SY $51.82 $ D DETAIL D 11 SY $22.05 $ DRIVEWAY RESTORATION 136.A " CONCRETE 49 SY $82.69 $3, B " CONCRETE 18 SY $ $1, TOTALS $1,897, Will vendor hold pricing firm? Renewal Option 1 Will vendor hold pricing firm? Renewal Option 2 Will vendor hold pricing firm? Renewal Option 3 Will vendor hold pricing firm? Renewal Option 4 Recommended Vendor: Attn: Jason Freeland 871 Old Peachtree Road NW Lawrenceville, GA P: F: jason.freeland@dickersongroup.net 5% 5% 5% 5%

ADDENDUM NO. 3 WATERSHED IMPROVEMENTS ON AN ANNUAL CONTRACT GWINNETT COUNTY DEPARTMENT OF WATER RESOURCES RP031-18

ADDENDUM NO. 3 WATERSHED IMPROVEMENTS ON AN ANNUAL CONTRACT GWINNETT COUNTY DEPARTMENT OF WATER RESOURCES RP031-18 DECEMBER 6, 2018 ADDENDUM 3 WATERSHED IMPROVEMENTS ON AN ANNUAL CONTRACT GWINNETT COUNTY DEPARTMENT OF WATER RESOURCES RP031-18 ADDITIONAL INFORMATION DOCUMENTS The following document: Questions and Responses