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HomeMy WebLinkAboutDWR Comment Summary_BufferPlan"irk cxvJ a)rn ff &iaLd td"bu , 4c aj\-p qoyt"' -fo T�'Ms slt �O jay Mitigation Plan Checklist for Riparian Restoration Mitigation Sites -created 7/15/13 6"'6'WR Stream Determination ` T DWR Site Viability Letter 'i_Site Location ®Directions including Lat & Long Ua- 8-digit HUC &/or 14 digit (if applicable) �ounty �e MC approved Soil map, Topo and Aerial Maps Project Name: —a,= (I "W-L Reviewed By: A&h l DWR # �� 7 Date Li FA 1\ be Sub -watershed where applicable l' Existing Site Conditions w/ photos ✓ �St ❑ All proposed mitigation activities, including a brief summary of stream and/orE'tlandmiitigation w/ , a detailed planting plan "add 1 6+d I s R d —1 �1 `o4 a i 1�,' Sl W,.-a KA can P�� monitoring & Maintenance Plan -- a PIC+ -AObo'cmu—) P;� i�V'�� rMAQWJimr `��inancial Assurance (if applicable) V,Associated buffer and/pr nutrient offset credit calcs, which shall include credit eneration, service (_ area, etc. ~ �! 0 '1'ti � �I�YYUf� ��T 4A J (Ft�Credit Determination Table/Map �,J?— Verification that the site does not have an impact on threatened or endangered species —B— Verification that the site is not affected by on -site or nearby sources of contamination as provided ` t✓ by Environmental Data Resources, Inc. ❑ Verification that the site can be constructed on land if it is an archaeological ical site; g (� A list of all permits that will be required and obtained prior to constructing the mitigation site for nutrient offset and/or buffer mitigation (e.g. Sediment and Erosion Control Plan from Division of Land Resources, NCGO10000 Stormwater Permit from NCDWQ, 404 permit from the Army Corps of Engineers and corresponding 401 Water Quality Certification from NCDWQ). 1D#* 20220664 Version* 2 Select Reviewer: Katie Merritt Initial Review Completed Date 12/04/2023 Mitigation Project Submittal - 11/28/2023 1s this a Prospectus, Technical Proposal or a New Site?* Type of Mitigation Project: * Stream Wetlands Buffer Nutrient Offset [Select all that apply] Project Contact Information Contact Name: Jeremiah Dow Project Information ID#:* 20220664 Existing ID# Project Type: Project Name County: DMS Mitigation Bank Casey Creek Wayne Yes No Email Address: * jeremiah.dow@deq.nc.gov Version: * 2 Existing Version Document. Information ................... Mitigation Document Type: Miligallon Plans File Upload: CaseyCreek_100597_FD_BufferMP_2023.pdf 1$.85MB Please upload only one POF of the complete file that needs to be submitted... Signature Print Name: * Jeremiah Dow Signature: NUTRIENT OFFSET & CASEY CREEK MITIGATION SITE Wayne County, NC BUFFER MITIGATION PLAN Neuse River Basin HUC 03020201 October 2023 USACE Action ID: SAW-2022-01239 NCDWR ID No. 20220664 v2 NCDEQ Contract No. 210201-01 RFR#: 16-20210201 (Issued: 7/7/2021) DMS ID No. 100597 PREPARED FOR: 470 NC Department of Environmental Quality Division of Mitigation Services 1652 Mail Service Center Raleigh, NC 27699-1652 Summary of Comments on CaseyCreek BufferPlan_DWRed its. pdf Page: 7 QNumber: 1 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 11:49:58 AM clarify what is meant by "Site" here? ITI Number: 2 Author: kymerritt Subject: Inserted Text Date: 5/16/2024 11:49:41 AM nutrient offset and FilNumber: 3 Author: kymerritt Subject: Inserted Text Date: 5/16/2024 11:51:52 AM designed and to be constructed Number: 4 Author: kymerritt Subject: Inserted Text Date: 5/16/2024 11:50:19 AM the Nutrient Offset Trading Rule *Number: 5 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:00:16 PM throughout the Plan, there is inconsistency on what project is being referenced. there is usage of "Site", "Project", "riparian mitigation project", riparian buffer mitigation project, nutrient offset and buffer project, etc. address the inconsistencies. recommended to say "nutrient offset & buffer mitigation project (hereinafter referred to as "riparian restoration project") or something similar DWR did not add comments on this issue throughout the plan so DMS will need to make sure the plan is updated accordingly throughout to address this comment. Number: 6 Author: kymerritt Subject: Cross -Out Date: 5/16/2024 11:50:21 AM QNumber: 7 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 11:51:00 AM add the appendix that this plan is located in wihtin the stream plan Number: 8 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 11:56:48 AM DWR assumes based on maps and tables that the minimum width of 50' from top of banks is being achieved on all features across the whole site. however, it was noted in IRT comments from Maria w/ DWR commend 2 (d) that there is about 4% of riparian buffers that are less than 50'? explain the discrepancy here and why the tables and figures don't represent areas less than 50. Areas less than 50' are not convertible to nutrient offset and must be called out and differentiated from the other width categories in the credit table. FT Number: 9 Author: kymerritt Subject: Inserted Text Date: 5/16/2024 11:54:02 AM a minimum of 50 feet and a maximum of QNumber: 10 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 11:51:36 AM acknowledge that this is a DMS project somwhere in Section 1.0 including the DMS ID# QNumber: 11 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 11:52:57 AM is "project" referenced here different that the "riparian mitigation project" referenced in the second paragraph of section 1.1? explain and clarity the reference. JilNumber: 12 Author: kymerritt Subject: Inserted Text Date: 5/16/2024 12:01:36 PM by restoration and preserving the riparian areas adjacent to mitigated streams. QNumber: 13 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:01:06 PM in section 1.0 this is referred to as "riparian buffer mitigation project" [ilNumber: 14 Author: kymerritt Subject: Inserted Text Date: 5/16/2024 12:00:27 PM riparian Page: 8 *Number: 1 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:02:26 PM this project was referred to on page 1 as "nutrient offset and buffer mitigation project" not "buffer mitigation and nutrient offset porject". Be consistent throughout on the naming conventions (same as previous comments on page 1) sm QNumber: 1 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:04:03 PM i don't mind the 14 digit HUC but it shouldn't be more than 12 digits represented in this table. we dont' use the 14 digit huc layer on our DWR GIS maps for the Neuse River Basin so I'm not sure how the 14 digit HUC was determined for this site. Either way, rmeove to include only the 12 digit QNumber: 2 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:04:35 PM this memo should be attached to the Plan in an appendix and then referenced accordingly. QNumber: 3 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:13:23 PM Ditch B was determined to be viable for NOC in the field based on existing conditions. If Ditch B is going to be modified to carry water in a different direction than how it currently carries water to Meeting Branch, then the ditch is no longer viable. Altering the connection of a ditch to the Stream on any project can kick a ditch out from viable for credits. Page: 10 QNumber: 1 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:14:40 PM Site? what is meant by "Site? T1Number: 2 Author: kymerritt Subject: Cross -Out Date: 5/16/2024 12:13:33 PM Number: 3 Author: kymerritt Subject: Cross -Out Date: 5/16/2024 12:13:36 PM Page: 13 QNumber: 1 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:26:16 PM there were drain tiles called out on the viability letter. explain how drain tiles will be removed and where they are located. QNumber: 2 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:30:54 PM creation of a internal crossing needs to be referenced, is it culverted or a ford, any culvert removals? QNumber: 3 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:31:58 PM if the miniimum widths are 50, which is implied by the credit table and corresponding figures, why does it cite 20' here? explain and address accordingly as noted in previous comments about widths. QNumber: 4 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:27:44 PM include details on what is being used to fill the borrow pit, how big is the borrow pit, how is this area going to be stabilized, will there be stems planted in this borrow pit footprint? QNumber: 5 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:24:51 PM Explain in Detail in Section 4.1 of this Plan, how Ditch B is being modified from its current condition and why (existing ditch depth, constructed ditch depth, existing width of ditch, constructed width of ditch, etc. The stream plan calls this area out as a "Coastal Plain Swale", but this reference is not used in this Plan. Why? Explain what a Coastal Plain Swale is. Reference plan sheet 1.8 from the stream plan which shows the intended asbuilt design, add 1.8 to Appendix E and reference it accordingly in section 4.1. When DWR staff met with Wildlands at an IRT mtg recently, Wildlands explained that the ditch was not being modified to redirect flows away from the stream and is not being modified in a way that changes the ditch's existing top of bank locations or channel "length". This needs to be explained in detail in 4.1 (or add it's own section if needed). keep in mind that ditches must remain in their existing footprint from Viability letter to Asbuilt in order to remain viable to generate nutrient offset credits. therefore, in order for this ditch to generate nutrient offset credits, the EXISTING top of bank of Ditch B is required to be used to determine credits generated off Ditch B. this area cannot change at AsBuilt. Wherever the Top of bank measurement is at Plan stage, even if top of bank changes slightly during construction of the Coastal Plain Swale, the credits cannot be larger than they were at Plan stage. Explain how this will be achieved and how it is represented in the table. DWR is not opposed to the proposal of Ditch B to a Coastal Plan Swale. But without the specific details of how this is being achieved, DWR cannot approve the Plan -Number: 6 Author: kymerritt Subject: Inserted Text Date: 5/16/2024 12:28:02 PM riparian areas or QNumber: 7 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:30:10 PM there is a ditch coming into Casey Creek on the map (see Figure 7 for comments) and DWR did not see this ditch. Explain its existing hydrological connection (or not) to Casey Creek and what is being proposed on this ditch as part of the buffer and stream plans. Page: 14 QNumber: 1 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 11:33:47 AM bald cypress is not a hardwood species and doesn't meet the rule requirement of "hardwood trees". Remove from the table, or select this tree as being proposed to be planted but not counted towards performance criteria of stems per acre. QNumber: 2 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 11:31:32 AM the composition of the species in this table is 100%, but the statement about only planting 8 species would not yield 100%. Include the 8 that Wildlands intends to plant if available (include their composition up to 100%) and include the remaining stems as "possible substitutions" indicating what the composition will be of each substitution in the case they are used for planting. QNumber: 3 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 11:31:53 AM While DWR does appreciate the language regarding 15% will be the max composition of any one stemplanted, and that none will be over 50%, this has been determined to not fullfill the intent of a proposed planting plan. DWR needs to know the exact stems and # intended to plant shall all things work in your favor, and then any remaining stems desired to plant in case there is a need for substitutions. Modify text and table accordingly and corresponding plan sheet. QNumber: 4 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:38:16 PM Figure 7 shows a small ag field where restoration for both buffer and nutrient offset along Casey Creek (see comment on figure 7) is being proposed. However, this area is not shown in Appendix E on plan sheet 3.2 as being prposed to be planted. Explain and address accordingly. Number: 5 Author: kymerritt Subject: Cross -Out Date: 5/16/2024 12:33:50 PM Jil Number: 6 Author: kymerritt Subject: Inserted Text Date: 5/16/2024 12:33:53 PM project Page: 15 QNumber: 1 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:54:55 PM site? does this inlude the stream components too? T1Number: 2 Author: kymerritt Subject: Cross -Out Date: 5/16/2024 12:55:02 PM jil Number: 3 Author: kymerritt Subject: Inserted Text Date: 5/16/2024 12:55:06 PM Mitigation In Number: 4 Author: QNumber:5 Author: what is the Planted Area? Subiect: Inserted Text Subiect: Stickv Note Date: 5/16/2024 12:55:47 PM Date: 5/16/2024 1:04:45 PM Number: 6 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:54:18 PM how is data collected and reported in the Plan? provide the tool being used to export data for reports. Page: 17 QNumber: 1 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 1:06:25 PM do you mean Project? site? etc?? Number: 2 Author: kymerritt Subject: Cross -Out Date: 5/16/2024 1:06:11 PM QNumber: 3 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 1:06:48 PM add the appendix reference. QNumber: 4 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 1:15:21 PM explain how much ft2 is being deducted off each ditch for non -diffused flow. show the calculation depicting how you got the total number in the project credit table of 2793 QNumber: 5 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 1:05:40 PM acknowledge whether non-std buffers are being applied for the stream credits. if there are any areas <50, they must be called out here. Table 10: Casey Creek Mitigation Site - Project Credit Table Neuse 03020201 - Outside Falls Lake Project Area N Credit Conversion Ratio (ft'/pound) P Credit Conversion Ratio (ft'/pound) 19.16394 N/A Subject?(enter Total Delivered Credit Type Location NO if Feature Type Mitigation Min -Max Buffer Feature Name Total Area (fill (Creditable) Initial Credit %Full Credit Final Credit Convertible to Riparian Riparian Buffer Convertible to Nutrient Nutrient ephemeral or ditch') Activity Width (ft) Area of Buffer Mitigation (it') Ratio (x:1) Ratio (x:1) Buffer? Credits Offset? Offset: N (Ibs) Buffer Rural Yes I / P Restoration 0-100 Casey Creek, 317,307 317,307 1 100% 1.00000 Yes 317,307.000 Yes 16,557.503 Afton Branch Buffer Rural No UP P Restoration 0-100 Martha Branch 31,875 31,875 1 100% 1.00000 Yes 31,875.000 Yes 1,663.280 Nutrient Offset Rural Yes UP P Restoration 0-100 Casey Creek, 73,941 73,941 1 100% 1.00000 Yes 73,941.000 Yes 3,858.340 Afton Branch Nutrient Offset Rural Yes I / P Restoration 101-200 Casey Creek, 83,681 83,681 1 33% 3.03030 Yes 27,614.758 Yes 4,366.586 Afton Branch Nutrient Offset Rural No Ditch Restoration 0-300 Ditch B 18,291 1 100% 1.00000 No — Yes 954.449 Diffuse Flo Buffer Rural No Ditch Restoration 0-50 Deduction 1 2,793 1 300% 1.00000 Na — No — Z Totals (ft2): 527,887 506,803 450,737.758 27,400.158 Total Buffer (1 t2): 351,974 349,181 175,913 N/A Total Nutrient Offset (ff2): Total Ephemeral Area (ftt) for Credit: Total Eligible Ephemeral Area (ftt): Enter Preservation Credits Below Total Eligible for Preservation (IT Mitigation Min -Max Credit Type Location Subject? Feature Type Activity Buffer Width Feature Name (ft) Rural Yes I / P 0-100 Casey Creek Rural No I/P 0-100 Martha Branch Rural I Yes I / P 101-200 Casey Creek Preservation Area Subtotals (ftt): WCasey Creek Mitigation Site Nutrient Offset & Buffer Mitigation Plan DMS ID No. 100597 Page 12 October 2023 0 0 117,325 0.0% 117,325 25.0% Total Area (sf) Total (Creditable) Area for Buffer Mitigation (ft') 375,113 91,941 25,684 25,384 67,663 0 468,460 117,325 Preservation as %TABM Initial Credit Final Credit Riparian Ratio (x:l) %Full Credit Ratio (x:1) Buffer Credits 10 100% 10.00000 9,194.100 5 100% 5.00000 5,076.800 10 33% — Page: 18 QNumber: 1 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 1:14:09 PM identify the ditches where this is being applied. QNumber: 2 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 1:30:39 PM add a separate row for the borrow pit footprint which was not in agricultural land use and is not convertible to noc. just viable for RBC. O�7able il: Casey Creek Mitigation Site -Total Area of Buffer and Nutrient Offset Mitigation TOTAL AREA OF BUFFER MITIGATION (TABM) Mitigation Totals Square Feet Credits Restoration: 349,181 349,182.000 Enhancement: 0 0.000 Preservation: 117,325 14,270.900 Total Riparian Buffer: I 466,S06 363,452.900 TOTAL NUTRIENT OFFSET MITIGATION Mitigation Totals Nutrient Nitrogen: Offset: Phosphorus: Square Feet 175,913 Credits 9,179.375 0.000 WCasey Creek Mitigation Site Nutrient Offset & Buffer Mitigation Plan DIMS ID No. 100597 Page 13 October 2023 Page: 19 QNumber: 1 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 1:13:15 PM this should be Table 10. The project credit table is not intended to be split into two tables, but represented as one table as a whole. Page: 23 Number: 1 Author: kymerritt Subject: Inserted Text Date: 5/16/2024 1:15:46 PM Project Location Conservation Easement NCDOT Right of Way Existing Wetlands ® Old Borrow Pit - Perennial Project Stream Intermittent Project Stream - Project Ditch f - Non -Project Ditch Non -Project Streams — -- — Utility Line 3 C� Existing Culvertso ` 1 W, � # r ± � 4 �+-►117 rlr�- �+ i��, N ® W I L D L A N D 5 Ll Casey Creek Mitigation Site E N G IN E E R I N G 0 225 450 Feet Nutrient Offset and Buffer Mitigation Plan l I I Neuse River Basin (03020201) Wayne County, NC Old Borrow Pit to be filled and planted within 50' of Casey Creek ONW I LD LANDS ENGINEERING 4' '.q R 1 4 st 1 � Cti as yc' r i� r0 Casey Greek 0 250 500 Feet J a 'jRltflt'j Q Project Location r Conservation Easement Internal Crossing NCDOT Right of Way ® Old Borrow Pit - Stream Mitigation Swale Pilot Channel - Ditch - Non -Project pitch Mitigation Approach Riparian Restoration for Nutrient Offset Credit (0'-10(1') Riparian Restoration for Nutrient Offset Credit (101'-200') Riparian Restoration for Buffer Credit (0'-100') Riparian Preservation for Buffer Credit (within 25%TABM) (0%100') Riparian Preservation for Buffer Credit (within 25%TABM) (101'-200') Not for Credit ---- Surveyed Tree Line --- Utility Une Nan -Project Streams Figure 7. Buffer Mitigation 4 cept Map Casey Creek gation Site Nutrient Offset and Buffer Mitigation Plan Neuse River Basin (03020701) Wayne County, NC Page: 28 QNumber: 1 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 1:27:32 PM is Ditch A in or out of the Easement boundary? QNumber: 2 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 1:29:56 PM the footprint of the borrow pit is not in agriculture and cannot be converted to nutrient offset as implied in the credits table but acurately depicted in this figure. call out the borrow pit footprint in the project credit table and cite "no" for not convertible to NOC, and in Section 9.0 QNumber: 3 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 1:34:32 PM remove the Orange representing restoration for noc in this area. This area was not in agricultural landuses and are not viable for noc, only buffer. update and modifiy the plan and tables accordingly. F11Number: 4 Author: kymerritt Subject: Inserted Text Date: 5/16/2024 1:24:43 PM & Nutrient Offset O Figure 8. Riparian Buffer Zones Map W I L D L A N D S Casey Creeic Mitigation site E N G I N E E R I N G 0 250 500 Feet Nutrient Offset and Buffer Mitigation Plan I Neuse River Basin (03020701) Wayne County, NC Project Location Conservation Easement Internal Crossing ] NCDOT Right of Way ILLLJ Old Borrow Pit - Stream Mitigation Swale Pilot Channel - Ditch - Non -Project Ditch Mitigation Approach Ifi• Riparian Restoration for Nutrient Offset Credit s (0'-100') Riparian Restoration for Nutrient Offset Credit - )loll-2001) -yJ\ Riparian Restoration for Buffer Credit (0'-500 Riparian Preservation for Buffer Credit {within }` 0 / 25%TAB M) (0'-100') Riparian Preservation for Buffer Credit (within 25%TABM) (101'-200') oo Not for Credit ❑ f.i,�o .* 3 0 vegetation Plot O 1. -- - Surveyed Tree Line r -- Utility Line Non -Project Streams 2 . I ,. 1 1 _ t 1 1 � 1. 1 1 1 �} 11 \ -a 1 1 I 4 f I i i+ + 1 � •i3 I 13 r .r—'�'r— '•pL O i 4 y l' Figure 9. Monitoring Components Map W I L D L A N D S Casey Creek Mitigation site ENGINEERING 0 250 500 Feet Nutrient Offset and Buffer Mitigation Plan I II ICI Neuse River Basin (03020201) Wayne County, NC Page: 30 QNumber: 1 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 1:37:36 PM are all these plots DWR only plots or are some or all of these plots also being shared with the USACE? QNumber: 2 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 1:36:39 PM call out this feature consistent with stream plan A a Streambank Planting Zone l Q: aue dI� �? # nM n FFoag+.'cM agnknmie�mammlo- �rO w� ux xn.�vaxkm TemporarySeeding x�x.. menx.ne ....xuxK nqw xppn..eoxn ywwx�m x.mMOW.w� xx,,,m�,., smwnn xas.q. umamtvza k�aumauaw nqw xv q•a rrNawmi.wJ� orvm LL !1 csxev creek N. casev creek xa. Phon BranrM1 Permanent Riparian Seeding Streambank Planting Zone 2 ma✓ i aw�mxx��a Ewa aiM�..Poe a« a C nI O U xux. mme,h ^w.xeo� M a q .m q.a �' 0 xv xxku.M.mmkre�m U 3 eywweawm Permanent Seeding Outside Easement sp.w., x.m. x.nxq OW.s.I swore Buffer Planting Zone max.y.ar r! .n�xn=ro�m j a j wmwrenna s •o.n,„ax,w.d..,�nx.maw.e�..rw kxrmrekw�xn C� r.aw o a ��F - t),w�r z 3= a U U S — I I � as R u 3 03 - WsryC eek k3,olimgCaseypGeek M, nXon arancM1 < « eekk!2,`M' r; rM1 0 a wilhl..1KerPiamm,1— uo xmeaareasmemarceurtenudvegLaId NN e BUHWilz 0— occur wimiemenumm MUiscurW�ntt. i' l Page: 36 QNumber: 1 Author: kymerritt Subject: Sticky Note Date: 5/16/2024 12:52:46 PM this area is proposed for riparian restoration credits but is not proposed for planting. explain and update accordingly in the Plan.