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HomeMy WebLinkAbout19951281 Ver 1_Mitigation Information_19960209PCS Phosphate AURORA DIVISION P.O. BOX 48, AURORA, NC 27806 February 7, 1996?? Mr. John Dorney Water Quality Section Division of Environmental Management North Carolina Department of EHNR 4401 Reedy Creek Road Raleigh, North Carolina 27607 Dear Mr. Dorney: Water Quality Certification No. 2748 for the Upper Whitehurst Creek relocation requires periodic biological and chemical sampling and annual reporting. Enclosed are four copies of the 1995 sampling report, as required in condition No. 8 of the Water Quality Certification. If you have any questions regarding information presented in the report, please call me at 919/322-8249. Sincerely, nesf J. C. Furness Environmental Scientist JCF/re Enclosures pc: W. A. Schimming (w/o encl) 12-01-004-26 (w/encl) B. A. Peacock/00-14-000 (w/o encl) P. J. Moffett (w/encl) H. M. Breza/I. K. Gilmore (w/o encl) t • t L 'f? ,yam • Ia' r? 'L• ?wr _ i ? ?t 4 .ai !':... 1 - ;fir ? ?. • ? . _ ? ?• y .t ' • I 0 b 4S • • • oo P • • ." • ? ' # 'MME ..r¦. ??;: _ l t +i .:. ?¦¦?¦•? t .*,*, 'e s ? _:• sq?g . :.:.tom . ? •? ,?• ??? yam- ?r 71 :MAA loft «• '1d30 98 BIB SB-tiL Z :61 ; IVAA N3 ' E ; I:; K 31YHdSOHd.''. ., _ .. ,: . a... ., _ 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 UPPER WHITEHURST CREEK AQUATIC MACROINVERTEB RATE AND FISH SURVEY AND WATER QUALITY ANALYSES: 1995 MITIGATION CHANNEL REPORT Prepared For: PCS PHOSPHATE COMPANY, INC. Environmental Affairs Department Aurora, North Carolina Prepared By: CZR INCORPORATED 4709 College Acres Drive, Suite 2 Wilmington, North Carolina December 1995 11 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Upper Whitehurst Creek Aquatic Macroinvertebrate and Fish Survey and Water Quality Analyses: 1995 Mitigation Channel Report TABLE OF CONTENTS Paqe LIST OF TABLES ....................................................... LIST OF FIGURES ....................................................... iii LIST OF APPENDICES .................................................... I. INTRODUCTION 1 A. Purpose ................................................... 1 B. Project Site ................................................ 1 METHODOLOGY .................................................. 2 A. Macroinvertebrates ........................................... 2 B. Fish ...................................................... 2 C. Water Quality ............................................... 2 RESULTS ....................................................... 5 A. Macro invertebrates ........................................... 5 B. Fish ...................................................... 5 C. Water Quality .............................................. 12 D. Recolonization ............................................. 19 IV. SUMMARY ..................................................... 16 LIST OF TABLES Table Page 1 Description of conditions at stations in the upper Whitehurst Creek mitigation channel third-year (1995) macroinvertebrate survey, Beaufort County, North Carolina ........ 6 2 Taxa richness of macroinvertebrates (by group) for the upper Whitehurst Creek mitigation channel third-year (1995) survey, Beaufort County, North Carolina ......... 7 3 Third-year (1995) macroinvertebrate survey of the upper Whitehurst Creek mitigation channel, Beaufort County, North Carolina ................................. 8 4 Third-year (1995) fish survey of the upper Whitehurst Creek mitigation channel, Beaufort County, North Carolina ....................................... 11 5 Monthly water quality sampling and analyses conducted in the upper Whitehurst Creek mitigation channel by the PCS Phosphate Environmental Affairs laboratory .......... 13 6 Summary of macroinvertebrate recolonization of upper Whitehurst Creek mitigation channel within the first three years (1993-1995) ........................... 14 7 Fish recolonization of upper Whitehurst Creek mitigation channel within the first three years (1993-1995) ................................................ 15 LIST OF FIGURES Figure Page 1 Fish and Macroinvertebrate Sample Sites: Upper Whitehurst Creek Mitigation Channel .. 3 2 Monthly Water Quality Sample Sites: Upper Whitehurst Creek Mitigation Channel ..... 4 LIST OF APPENDICES Appendix A Aquatic Macroinvertebrate Taxa Documented in Upper Whitehurst Creek from 1992 through 1995 B Fish Species Documented in Upper Whitehurst Creek from 1992 through 1995 1 L H INTRODUCTION A. Purpose This report presents the results of the 1995 aquatic macroinvertebrate and fish surveys conducted by CZR Incorporated (CZR) for PCS Phosphate Company, Inc. (formerly Texasgulf Inc.) in the upper Whitehurst Creek mitigation channel. This sampling is required as a condition of 401 Water Quality Certification No. 2748 issued on 30 June 1992 to Texasgulf Inc. by the Division of Environmental Management (DEM) of the North Carolina Department of Environment, Health, and Natural Resources. This is the fourth report in a series for upper Whitehurst Creek, and is the third report on the aquatic macroinvertebrates and fish of the upper Whitehurst Creek mitigation channel. The first report presented the baseline condition in historical upper Whitehurst Creek based on 1992 surveys by DEM and CZR. The second and third reports presented the first-year and second-year conditions, respectively, of the upper Whitehurst Creek mitigation channel based on 1993 and 1994 surveys by CZR. This fourth report presents the third-year conditions of the upper Whitehurst Creek mitigation channel based on CZR's 1995 surveys, and presents the recolonization to date based on the 1993 and 1994 surveys and updated with the 1995 survey results. B. Project Site A detailed description of the mitigation channel is found in Appendix B of the 1992 Baseline Report. The upstream end of the mitigation channel begins at the outlet of a sediment basin ' and continues for approximately 5,000 linear feet to join Whitehurst Creek on the west side of the bridge on old SR 1941. The mitigation channel has a flat bottom approximately 10 feet in width and 2.5:1 side slopes. The slopes were vegetated with a mixture of Kobe lespedeza, German millet, and Pensacola bahia grass in addition to various tree seedlings. Log/limb sections and leaf litter were added ' to selected spots. in the mitigation channel in April 1993. 1 C LI II. METHODOLOGY A. Macroinvertebrates Two monitoring stations were established in the mitigation channel in 1993 for surveying aquatic macro invertebrates. Station 1 is located above SR 1941 near the mouth of the mitigation channel, and Station 2 is approximately half-way between SR 1941 and the sedimentation pond (Figure 1). Sampling was conducted at these stations on 23 February 1995 and again on 12 July 1995. The sampling methodology is presented in the 1992 Baseline Report. B. Fish Two monitoring stations were established in the mitigation channel in 1993 for surveying fishes. Each station consists of a 600-foot stretch of channel marked by stakes at the starting-point, mid-point, and ending-point. These two 600-foot stretches incorporate the macroinvertebrate monitoring stations described in Section ILA (Figure 1). Sampling was conducted at these stations on 23 February 1995 and again on 12 July 1995. The fish sampling methodology is presented in the 1992 Baseline Report. C. Water Quality Monthly water quality sampling and analyses were conducted by the PCS Phosphate Environmental Affairs laboratory. These samples were collected from locations near the mouth and near the middle stretch of the mitigation channel (Figure 2). Water samples were analyzed for temperature, conductivity, dissolved oxygen, and pH while in the field , and for fluoride and total phosphorus in the laboratory. 2 II 11WHITEHURST CREEK II 0 500 10001 „ STATION 1 II t? OLD S R 7947 FEET II ?? ?II II ?II II MINING BLOCK I II Ilo QII cr_ III II W IIQ II II II L, 11 II Il it l II . II II II II II ? 1, SEDIMENT BASIN STATION 2 FISH AND MACRO INVERTEBRATE SAMPLE SITES UPPER WHITEHURST CREEK MITIGATION CHANNEL OCTOBER 1993 I SCALE AS SHOWN CZR INCORPORATED Environmental Consultants 4709 College Acres Drive University Place Suite 2 Wilmington, NC 28403-1725 CP# 745.26 1 FIGURE 1 Ij l 1 II 11 WHITEH_ URST CREEK II 0 500 10( MOUTH OLD S R y FEET ??- - 941 I) QII u MIDDLE O MINING BLOCK 01 u V N n V `II II ? I ? ? J ? ---s ME =N H BASIN MONTHLY WATER QUALITY SAMPLE SITES UPPER WHITEHURST CREEK MITIGATION CHANNEL OCTOBER 1993 1 SCALE AS SHOWN CZR INCORPORATED Environmental Consultants 4709 College Acres Drive University Place Suite 2 Wilmington, NC 28403-1725 CPN 745.26 1 FIGURE 2 CI 11 11 t III. RESULTS A. Macroinvertebrates Water quality information and site descriptions collected during macroinvertebrate sampling are presented in Table 1. A summary of macroinvertebrate taxa richness is provided in Table 2. The summary is presented by major taxonomic groupings, with insects divided into orders and other invertebrates divided into classes. A breakdown of macroinvertebrate taxa included within each of those groups along with relative abundances of the taxa within each sample is provided in Table 3. Sixty-one macroinvertebrate taxa were identified from the upper Whitehurst Creek mitigation channel during 1995 (Table 2), the third year after its construction. Fifteen of these taxa were documented in historical upper Whitehurst Creek during the 1992 baseline surveys. Three of these fifteen taxa were documented for the first time from the mitigation channel. Thirty-two of the other forty-six taxa represent new additions to the fauna documented for Whitehurst Creek, with the other fourteen taxa documented during the 1993 and 1994 mitigation channel surveys (Appendix A). B. Fish A summary of the 1995 seasonal fish surveys is presented in Table 4. Eleven species were documented from the upper Whitehurst Creek mitigation channel during the third year after its construction. Six of these species were among the nine fish species documented in historical upper Whitehurst Creek during the 1992 baseline surveys. Four of these eleven species (dusky shiner, yellow bullhead, banded killifish, and largemouth bass) represent new additions to the documented fauna (Appendix B). 5 ' Table 1 . Description of conditions at stations in the upper Whitehurst Creek mitigation channel third- year (1995) macroinvertebrate survey, Beaufort County, North Carolina. Winter survey conducted 23 ' February 1995; summer survey conducted 12 July 1995. Station 1 Station 2 Parameter Winter Summer Winter Summer Depth (m): Average 0.2 0.7 0.1 0.4 Maximum 0.3 1.0 0.2 0.6 Canopy ( %) 0 0 0 0 Aufwuchs heavy moderate none slight Bank erosion minimal minimal minimal minimal Substrate (%): Gravel 0 0 0 0 Sand 2 5 28 26 Silt 73 70 5 57 Detritus 25 25 67 17 Water quality: Temperature (°C) 10.0 27.0 11.5 27.0 Conductivity 105 NAa 110 125 (/jvhos) Salinity (ppt) 0 0 0 0 D.O. (mg/f) 6.8 7.0 5.8 4.3 pH 5.1 6.8 5.1 7.0 Water flow moderate moderate moderate moderate 1 a Equipment malfunction, see Table 5 for other readings. 1 6 C n Table 2. Taxa richness of macroinvertebrates (by group) for the upper Whitehurst Creek mitigation channel third- year (1995) survey, Beaufort County, North Carolina. Winter survey conducted 23 February 1995; summer survey conducted 12 July 1995. Station 1 Station 2 Total Group Winter Summer Total Winter Summer Total Taxa Oligochaeta 1 2 3 2 2 3 4 Crustacea 2 2 3 1 1 1 3 Ephemeroptera 1 3 3 1 2 2 3 Odonata 2 9 9 0 4 4 9 Hemiptera 0 1 1 0 4 4 5 Trichoptera 0 0 0 1 1 2 2 Coleoptera 2 5 6 3 10 12 14 Diptera 6 12 16 7 8 12 19 Arachnida 1 1 2 0 0 0 2 Total taxa richness 15 35 43 15 32 40 61 EPT taxa richness' 1 3 3 2 3 4 5 ' EPT taxa richness is a measure of the number of identified taxa within the insect orders Ephemeroptera, Plecoptera, and Trichoptera. 7 Table 3. Third-year (1995) macroinvertebrate survey of the upper Whitehurst Creek mitigation channel, Beaufort County, North Carolina. Winter survey conducted 23 February 1995; summer survey conducted 12 July 1995. Relative ' abundance tabulated as Rare (1-2 specimens), Common (3-9 specimens), or Abundant (>_10 specimens). A dash (-) indicates that no individuals of the taxon were documented. An asterisk (*) indicates taxon in common with 1992 upper Whitehurst Creek baseline. 1 Station 1 Station 2 Taxa Winter Summer Winter Summer Oligochaeta: Dero nivea - R - - Nais communis C - C R Pristina breviseta - - R - Tubificidae spp. - R - R Crustacea: * Caecidotea spp. (formerly Asellus spp.) - R - - * Crangonyx spp. R R - - * Astaceidae spp. A - A A Ephemeroptera: * Caenis spp. R A C A Callibaetis spp. - R - A Baetidae spp. - A - - Odonata (incl. Anisoptera, Zygoptera): Anax junius R R - R * Enallagma spp. R A - A Erythemis simplicicollis - R - - * lshnura/Anomalagrion spp. - R - C * Nannothemis Bella - R - C * Pachydiplax longipennis - R - - Perithemis spp. - R - - Plathemis lydia - R - - Tramea lacerata - R - - Hemiptera: Hydrometra spp. - - - R Microvelia spp. - R - - * Gerridae spp. - - - R 8 Table 3. (continued) 7 Station 1 Station 2 Taxa Winter Summer Winter Summer Hemiptera (continued): Hebridae spp. - - - R Mesoveliidae spp. - - - R Trichoptera: Limnephilus submonilifer - - R _ Oecetis cinerascens - - - R Coleoptera: Agabus spp. - - R - Ambrysus spp. - R - R Berosus spp. R C - - Celina spp. - - - R Copelatus glyphicus - - - R Deronectes spp. A - C - Dineutus spp. - R - - Enochrus spp. - - - A Hydrocanthus oblongus - - - C Hyperodes lodingi - R - C Peltodytes spp. - - - R Suphisellus spp. - A C A • Tropisternus spp. - - - R Curculionidae spp. - - - R Diptera: Anopheles spp. - R - - Asheum spp. R - - - Chrysops spp. - C - - Cladotanytarsus spp. - R - - Clinotanypus spp. - C - C Cricotopus spp. C - R - Dicrotendipes spp. C - C - Diplocladius cultriger - - R - Table 3. (concluded) t r f' Station 1 Station 2 Taxa Winter Summer Winter Summer Endochironomus spp. - R - - Kiefferulus spp. - R - R Larsia spp. - C - A * Palpomyia complex - A - - * Polypedilum spp. - - R R Procladius spp. R C C A Tanypus carinatus - C - R Tanytarsus spp. A R C - Orthocladiinae spp. R - - R Chironomidae spp. (pupae) - - R R Culicidae spp. (pupae) - R - - Arachnida: Acarina spp. R - - - Uninicolidae spp. - R - - Total taxa per station per season 15 35 15 32 Total taxa per station 43 40 Total taxa for 1995 61 10 7 Table 4. Third-year (1995) fish survey of the upper Whitehurst Creek mitigation channel, Beaufort County, North Carolina. Winter survey conducted 23 February 1995; summer survey conducted 12 July 1995. Length expressed as range in total length (in millimeters) of individuals within sample (N) or the first 30 individuals measured. J 11 u 1 Station 1 Station 2 Winter Summer Winter Summer Species N (Length) N (Length) N (Length) N (Length) Golden shiner (Notemigonus crysoleucas) 0 (NA) 0 (NA) 0 (NA) 1 (140) Dusky shiner (Notropis cummingsae) 0 (NA) 10(20-24) 0 (NA) 2(36-43) Yellow bullhead (Ameiurus natalis) 0 (NA) 0 (NA) 0 (NA) 2 (26-33) Brown bullhead (Ameiurus nebulosus) 1 (149) 0 (NA) 0 (NA) 0 (NA) Banded killifish (Fundulus diphanus) 0 (NA) 1 (71) 0 (NA) 0 (NA) Eastern mosquitofish (Gambusia holbrooki) 0 (NA) 154(19-45) 0 (NA) 85 (24-52) Green sunfish (Lepomis cyanellus) 0 (NA) 42 (27-65) 0 (NA) 2 (29-57) Bluegill (Lepomis macrochirus) 11 (32-57) 62 (32-60) 0 (NA) 6 (25-35) Pumpkinseed (Lepomis gibbosus) 4(79-111) 1 (57) 0 (NA) 0 (NA) Largemouth bass (Micropterus salmoides) 0 (NA) 2 (87-330) 0 (NA) 0 (NA) Swamp darter (Etheostoma fusiforme) 0 (NA) 1 (34) 0 (NA) 0 (NA) Total species per station per season 3 8 4 0 6 Total species per station 9 6 Total species for third-year survey 11 11 r C. Water Quality A summary of the monthly water quality analyses is presented in Table 5. This summary includes data collected from September 1994 through December 1995. D. Recolonization A summary of the macroinvertebrate recolonization of the upper Whitehurst Creek mitigation channel through February 1995 is presented in Table 6. A breakdown of macroinvertebrate taxa included within each of the groups presented in Table 6 is provided in Appendix A. Ninety-four macroinvertebrate taxa are shown as documented from the upper Whitehurst Creek mitigation channel within the three years after its construction. The actual number of species documented is higher since the taxa presented are broken down only to the taxonomic level of effort initially established by DEM personnel during the winter 1992 baseline survey of upper Whitehurst Creek. For example, since DEM identified taxa within the group Coleoptera only to the generic level, the three species within the genus Tropisternus identified during the summer 1994 survey were lumped within the taxon Tropisternus spp. established by DEM. Representative taxa from ten of the eleven macroinvertebrate groups documented during the 1992 baseline survey, as well as an additional group, have been documented as recolonizing the upper Whitehurst Creek mitigation channel. The February 1995 survey included the addition of one group (Oligochaeta) present in the baseline survey but not documented in the mitigation channel during the first two years. Seven of the nine fish species documented in the 1992 baseline survey, as well as five additional species, have now been documented as recolonizing the upper Whitehurst Creek mitigation channel (Table 7). Four new species of fish were documented in the 1995 surveys. The diversity and number of individuals documented represent increases over previous winter mitigation channel surveys. 12 f C 7 N co L a O L d W U O L 1-N c C cu .r- 0 c O cu rn :t E Y N N U L a? !E Q Q 7 N L +r a? O c O U y N C cc C ca CA C Q E y - O + co D 6 O .n O W Co (n 4- Y- ? Q C O ? c m E LO c O O > FD- w O O M M M c- ?t M M N LLB M -p CD M N N N N N .- o O O O O O O O o o O -- O Q L M co (D r, ct M N N M O LL. (O 'It N N - N N M N N O O O O O O O O O O O o N -,t LO I- O (D d M r, 00 N CF N 00 U) ? O O c- O d O O O It O O _ _ O O O O O O O O O O O c E O Q Q Q ~ L N - r- L (D M N LO M O co O Q o O O O O O O O ?- O O O O O O O O O O O O O C6 r-? 6 6 6 6 4 4 (o (6 0 Q L D 00 M O M M LO (O 00 I? lzt N O r- r- (D LO (0 to d It (O M to O -? 00 M M LO 00 (D LO N ?- LO O D M M N r- O O 00 .- O O . rn o E L D LO (D r r (D 0 00 LO O 00 I, o O M N N O C6 O O O > -D O M M M M CO N N O -D r N M M M 't M M 00 N >_ y (D M N N N ?- M N M O ri L -D > ? C U L 7 (D M M M N .- •- M Ln M 00 D 00 O 00 I, N ?t m O qt M M 0 M M N N N N M N M 0 d M I? M Ln (D N O OD O N N N ?- N M N N U ` 0 N 7 LO M r, CO LO (D O N M - 00 ?- 0 N N •- `' N a- N M N T O r- It CD 0 co co co 0 r- rl a) m N O O ,O O O O O O N M O N N M dt m 0 I- 00 6 O ?- ?- O O O O O O O O ? ? d ?h Ln LO LO LO LO LO LO LO M M M M M M M M M M M M 13 co N a O C 0 O c i ' Table 6. Summary of macroinvertebrate recolonization of upper Whitehurst Creek mitigation channel within the first three years (1993-1995). i r Number of taxa by group Group 1992 Baseline 1993-1995 Upper Whitehurst Creek Mitigation Channel Oligochaeta 3 4 Crustacea 5 5 Ephemeroptera 1 3 Odonata 9 14 Hemiptera 5 9 Coleoptera 15 24 Megaloptera 1 1 Diptera 17 26 Trichoptera 3 3 Orthoptera 1 0 Arachnida 1 4 Mollusca 0 1 Total 61 94 14 ' Table 7. Fish recolonization of upper Whitehurst Creek mitigation channel within the first three years (1993-1995). 7 C i r Species 1992 Baseline Upper Whitehurst Creek 1993-1995 Mitigation Channel American eel (Anguilla rostrata) X Golden shiner (Notemigonus crysoleucas) X X Dusky shiner (Notropis cummingsae) X Brown bullhead (Ameiurus nebulosus) X Yellow bullhead (Ameiurus natalis) X Pirate perch (Aphredoderus sayanus) X X Banded killifish (Fundulus diphanus) X Eastern mosquitofish (Gambusia holbrooki) X X Bluespotted sunfish (Enneacanthus gloriosus) X Green sunfish (Lepomis cyanellus) X X Bluegill (Lepomis macrochirus) X X Pumpkinseed (Lepomis gibbosus) X X Largemouth bass (Micropterus salmoides) X Swamp darter (Etheostoma fusiforme) X X Total species 9 12 15 IV. SUMMARY Sixty-one taxa of aquatic macro invertebrates were recorded in the 1992 baseline survey of historical upper Whitehurst Creek, whereas 94 taxa have been documented in the 1993-1995 surveys of the upper Whitehurst Creek mitigation channel. To date, 28 of the 61 taxa (or 45.9 percent) of aquatic macroinvertebrates documented in the 1992 baseline survey have been documented within the mitigation channel. An additional 66 taxa of aquatic macroinvertebrates not documented in the historical upper Whitehurst Creek have been documented within the upper Whitehurst Creek mitigation channel within the three years since its construction. Seven of the nine species (or 77.8 percent) of fish documented in the 1992 baseline survey of historical upper Whitehurst Creek have been documented within the upper Whitehurst Creek mitigation channel. Four additional species of fish not documented in the historical upper Whitehurst Creek have been documented within the upper Whitehurst Creek mitigation channel within three years since its construction. 16 1 1 1 1 1 APPENDIX A AQUATIC MACRO INVERTEBRATE TAXA DOCUMENTED IN UPPER WHITEHURST CREEK FROM 1992 THROUGH 1995 7 I 1 11 m m t m 0 N 0) M E O Y a) U 7 L () L 0 a a Z) c CD c 0 E 0 U O R X a) F- () N a) t a) 7 c O U a7 U .m D a Q Q X 'a c a) CL a Q E c E x x x x x x x x x x x co ?- =3 ? ? U r c H o Lo m C _ X X X X X X X a cc `m C cca E X X X X X X X co U fn N O U) ' 0) m N ?.+_' c X X X X a) a) T E X X X X L yU Ll C O rn .+' c X X Y a) N CL x x x x x x x y U 7 ? c .? cn 3 ? t m +o' a ) C_ X X X X X X X X y a) E CO O 0 a? CL o h U) 0) a cl ° CL U - a CL N L a a CL a ca V) ) 7 U) cl CL ci CL U cu q) o C O V C ? U w J ? O ? al U U ca ti m m ) a) ? a) ` j 7 c0 y L N a) ro as C C f\a as H D ? S Z a ? f-- U Q U ? 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O C s cn Y +m+ am+ o a? a r 0 ca -2 C7 O H O Q ? I-o H fm- i APPENDIX B ' FISH SPECIES DOCUMENTED IN UPPER WHITEHURST CREEK FROM 1992 THROUGH 1995 1 7 1 LO m m L D1 7 O ' L N m CF) O Y a) N ' U L a? L aD O_ CL D ' C a c aI U O fq aD ' U a) >Z M L fA iL ' XX a C CD ¦ a Q -5 a) C: E x x x x x x x x x x ° ?._ :3 U U L C `- I- o LO ++ m a) C x X X co _ > E X X X X X Ul) c U o o a o (n . +, c} a ,+= C X X X Cl) L m a? ca c X X N ?a D } U C M LL O M •m m 2) ` a) N CL -',d N E j; x x x x x x x x x m U n y m C 3 a7 L m +? a N= 0 ? C X X X X X m ) H ? .O y J y N y h O ? G J 'C J y N ?O ct) h C to 0) O a c L O a) N CO O) p w [[ ` Q i) , ?L y v L y Q N Q w w a3 a3 Q ? a a Q C J .y v W y ? N ` m a) a7 N Q w N y y O a L a) a) a) (D C C s L _ O a Q 4) (D L i a O. a7 y to L L 2 N Y +' 7 =? C O X X X N U C C a 4) E.. Q U) - Y E a cc (? Q C7 m } m w m (D m (L J U F- F- F0- 1 1 UPPER WHITEHURST CREEK AQUATIC MACROINVERTEBRATE AND FISH SURVEY AND WATER QUALITY ANALYSES: 1995 MITIGATION CHANNEL REPORT Prepared For: PCS PHOSPHATE COMPANY, INC. Environmental Affairs Department Aurora, North Carolina Prepared By: CZR INCORPORATED 4709 College Acres Drive, Suite 2 Wilmington, North Carolina December 1995 ' Upper Whitehurst Creek Aquatic Macroinvertebrate and Fish Survey and Water Quality Analyses: ' 1995 Mitigation Channel Report ' TABLE OF CONTENTS Paqe LIST OF TABLES ....................................................... iii LIST OF FIGURES ....................................................... iii LIST OF APPENDICES .................................................... iii 1. INTRODUCTION .................................................. 1 ' A. Purpose ......................................... 1 B. Project Site . . . . . . . . . . ...................................... 1 ' II. METHODOLOGY .................................................. 2 A. Macroinvertebrates ........................................... 2 ' B. Fish ....... Water Quality C 2 2 . ............................................... III. RESULTS ....................................................... 5 A. Macroinvertebrates ........................................... 5 B. Fish ...................................................... 5 ' C. Water Quality ' D Recolonization 12 12 . ............................................. IV. SUMMARY ..................................................... 16 ii LIST OF TABLES Table Paae 1 Description of conditions at stations in the upper Whitehurst Creek mitigation channel third-year (1995) macroinvertebrate survey, Beaufort County, North Carolina ........ 6 2 Taxa richness of macroinvertebrates (by group) for the upper Whitehurst Creek mitigation channel third-year (1995) survey, Beaufort County, North Carolina ......... 7 3 Third-year (1995) macroinvertebrate survey of the upper Whitehurst Creek mitigation channel, Beaufort County, North Carolina ................................. 8 4 Third-year (1995) fish survey of the upper Whitehurst Creek mitigation channel, Beaufort County, North Carolina ....................................... 11 5 Monthly water quality sampling and analyses conducted in the upper Whitehurst Creek mitigation channel by the PCS Phosphate Environmental Affairs laboratory .......... 13 6 Summary of macroinvertebrate recolonization of upper Whitehurst Creek mitigation channel within the first three years (1993-1995) ........................... 14 7 Fish recolonization of upper Whitehurst Creek mitigation channel within the first three years (1993-1995) ................................................ 15 LIST OF FIGURES Figure Page 1 Fish and Macroinvertebrate Sample Sites: Upper Whitehurst Creek Mitigation Channel .. 3 2 Monthly Water Quality Sample Sites: Upper Whitehurst Creek Mitigation Channel ..... 4 LIST OF APPENDICES Appendix A Aquatic Macroinvertebrate Taxa Documented in Upper Whitehurst Creek from 1992 through 1995 B Fish Species Documented in Upper Whitehurst Creek from 1992 through 1995 I. INTRODUCTION A. Purpose ' This report presents the results of the 1995 aquatic macroinvertebrate and fish surveys conducted by CZR Incorporated (CZR) for PCS Phosphate Company, Inc. (formerly Texasgulf Inc.) in ' the upper Whitehurst Creek mitigation channel. This sampling is required as a condition of 401 Water Quality Certification No. 2748 issued on 30 June 1992 to Texasgulf Inc. by the Division of Environmental Management (DEM) of the North Carolina Department of Environment, Health, and Natural Resources. This is the fourth report in a series for upper Whitehurst Creek, and is the third report on the aquatic macroinvertebrates and fish of the upper Whitehurst Creek mitigation channel. The first report presented the baseline condition in historical upper Whitehurst Creek based on 1992 surveys by ' DEM and CZR. The second and third reports presented the first-year and second-year conditions, respectively, of the upper Whitehurst Creek mitigation channel based on 1993 and 1994 surveys by CZR. This fourth report presents the third-year conditions of the upper Whitehurst Creek mitigation ' channel based on CZR's 1995 surveys, and presents the recolonization to date based on the 1993 and 1994 surveys and updated with the 1995 survey results. ' B. Proiect Site A detailed description of the mitigation channel is found in Appendix B of the 1992 Baseline Report. The upstream end of the mitigation channel begins at the outlet of a sediment basin and continues for approximately 5,000 linear feet to join Whitehurst Creek on the west side of the bridge on old SR 1941. The mitigation channel has a flat bottom approximately 10 feet in width and ' 2.5:1 side slopes. The slopes were vegetated with a mixture of Kobe lespedeza, German millet, and Pensacola bahia grass in addition to various tree seedlings. Log/limb sections and leaf litter were added ' to selected spots. in the mitigation channel in April 1993. 1 I 1 II. METHODOLOGY A. Macroinvertebrates Two monitoring stations were established in the mitigation channel in 1993 for surveying aquatic macroinvertebrates. Station 1 is located above SR 1941 near the mouth of the mitigation channel, and Station 2 is approximately half-way between SR 1941 and the sedimentation pond (Figure 1). Sampling was conducted at these stations on 23 February 1995 and again on 12 July 1995. The sampling methodology is presented in the 1992 Baseline Report. B. Fish Two monitoring stations were established in the mitigation channel in 1993 for surveying fishes. Each station consists of a 600-foot stretch of channel marked by stakes at the starting-point, mid-point, and ending-point. These two 600-foot stretches incorporate the macroinvertebrate monitoring stations described in Section ILA (Figure 1). Sampling was conducted at these stations on 23 February 1995 and again on 12 July 1995. The fish sampling methodology is presented in the 1992 Baseline Report. C. Water Quality Monthly water quality sampling and analyses were conducted by the PCS Phosphate Environmental Affairs laboratory. These samples were collected from locations near the mouth.and near the middle stretch of the mitigation channel (Figure 2). Water samples were analyzed for temperature, conductivity, dissolved oxygen, and pH while in the field , and for fluoride and total phosphorus in the laboratory. 2 u r C t II A WHITEHURST CREEK II 0 500 100 STATION 1 OLD S R FEET 1941 II II L-.- =-_ all II cr II MINING BLOCK vll Q° • IIO ¢II II W IIQ II II it LL.? 1 II II it II II it (I • •II (I s l? SEDIMENT BASIN STATION 2 FISH AND MACRO INVERTEBRATE SAMPLE SITES UPPER WHITEHURST CREEK MITIGATION CHANNEL OCTOBER 1993 SCALE AS SHOWN CZR INCORPORATED Environmental Consultants 4709 College Acres Drive University Place Suite 2 Wilmington, NC 28403-1725 CP# 745.26 1 FIGURE 1 r WHITEHURST CREEK MOUTH 500 100 I I l` OLD S R FEET _ _ 1,941 ... I I II ll MIDDLE ? II II MINING BLOCK Il ? o ¢ II III II W IIU U II ¢ I II I ? I I II I i i I t t 11 11 11 i t I I I ' I MONTHLY WATER QUALITY • I I SAMPLE SITES I I UPPER WHITEHURST CREEK MITIGATION CHANNEL OCTOBER 1993 SCALE AS SHOWN its CZR INCORPORATED II Environmental Consultants 4709 College Acres Drive University Place Suite 2 _ I Wilmington, NC 28403-1725 SEDIMENT BAS IN CP# 745.26 FIGURE 2 1 1 Ill. RESULTS A. Macroinvertebrates Water quality information and site descriptions collected during macroinvertebrate sampling are presented in Table 1. A summary of macroinvertebrate taxa richness is provided in Table 2. The summary is presented by major taxonomic groupings, with insects divided into orders and other invertebrates divided into classes. A breakdown of macroinvertebrate taxa included within each of those groups along with relative abundances of the taxa within each sample is provided in Table 3. Sixty-one macroinvertebrate taxa were identified from the upper Whitehurst Creek mitigation channel during 1995 (Table 2), the third year after its construction. Fifteen of these taxa were documented in historical upper Whitehurst Creek during the 1992 baseline surveys. Three of these fifteen taxa were documented for the first time from the mitigation channel. Thirty-two of the other forty-six taxa represent new additions to the fauna documented for Whitehurst Creek, with the other fourteen taxa documented during the 1993 and 1994 mitigation channel surveys (Appendix A). B. Fish A summary of the 1995 seasonal fish surveys is presented in Table 4. Eleven species were documented from the upper Whitehurst Creek mitigation channel during the third year after its construction. Six of these species were among the nine fish species documented in historical upper Whitehurst Creek during the 1992 baseline surveys. Four of these eleven species (dusky shiner, yellow bullhead, banded killifish, and largemouth bass) represent new additions to the documented fauna (Appendix B). 5 ' Table 1 . Description of conditions at stations in the upper Whitehurst Creek mitigation channel third- year (1995) macroinvertebrate survey, Beaufort County, North Carolina. Winter survey conducted 23 ' February 1995; summer survey conducted 12 July 1995. Station 1 Station 2 Parameter Winter Summer Winter Summer Depth (m): Average 0.2 0.7 0.1 0.4 Maximum 0.3 1.0 0.2 0.6 Canopy ( %) 0 0 0 0 Aufwuchs heavy moderate none slight Bank erosion minimal minimal minimal minimal Substrate (%): Gravel 0 0 0 0 Sand 2 5 28 26 Silt 73 70 5 57 Detritus 25 25 67 17 Water quality: Temperature (°C) 10.0 27.0 11.5 27.0 Conductivity 105 NAa 110 125 (Nvhos) Salinity (ppt) 0 0 0 0 D.O. (mg/Q) 6.8 7.0 5.8 4.3 pH 5.1 6.8 5.1 7.0 Water flow moderate moderate moderate moderate I a Equipment malfunction, see Table 5 for other readings. 6 J C? 0 I d- P Table 2. Taxa richness of macroinvertebrates (by group) for the upper Whitehurst Creek mitigation channel third- year 0 995) survey, Beaufort County, North Carolina. Winter survey conducted 23 February 1995; summer survey conducted 12 July 1995. Station 1 Station 2 Total Group Winter Summer Total Winter Summer Total Taxa Oligochaeta 1 2 3 2 2 3 4 Crustacea 2 2 3 1 1 1 3 Ephemeroptera 1 3 3 1 2 2 3 Odonata 2 9 9 0 4 4 9 Hemiptera 0 1 1 0 4 4 5 Trichoptera 0 0 0 1 1 2 2 Coleoptera 2 5 6 3 10 12 14 Diptera 6 12 16 7 8 12 19 Arachnida 1 1 2 0 0 0 2 Total taxa richness 15 35 43 15 32 40 61 EPT taxa richness' 1 3 3 2 3 4 5 ' EPT taxa richness is a measure of the number of identified taxa within the insect orders Ephemeroptera, Plecoptera, and Trichoptera. 7 C ' Table 3. Third-year (1995) macroinvertebrate survey of the upper Whitehurst Creek mitigation channel, Beaufort County, North Carolina. Winter survey conducted 23 February 1995; summer survey conducted 12 July 1995. Relative ' abundance tabulated as Rare (1-2 specimens), Common (3-9 specimens), or Abundant (>_10 specimens). A dash (-) indicates that no individuals of the taxon were documented. An asterisk (*) indicates taxon in common with 1992 upper Whitehurst Creek baseline. H LI J r Station 1 Station 2 Taxa Winter Summer Winter Summer Oligochaeta: Dero nivea - R - - Nais communis C - C R Pristina breviseta - - R - Tubificidae spp. - R - R Crustacea: * Caecidotea spp. (formerly Asellus spp.) - R - - * Crangonyx spp. R R - - * Astaceidae spp. A - A A Ephemeroptera: * Caenis spp. R A C A Callibaetis spp. - R - A Baetidae spp. - A - - Odonata (incl. Anisoptera, Zygoptera): Anax junius R R - R * Enallagma spp. R A - A Erythemis simplicicollis - R - - * lshnura/Anomalagrion spp. - R - C * Nannothemis Bella - R - C * Pachydiplax longipennis - R - - Perithemis spp. - R - - Plathemis lydia - R - - Tramea lacerata - R - - Hemiptera: Hydrometra spp. - - - R Microvelia spp. - R - - * Gerridae spp. - - - R 8 Table 3. (continued) Station 1 Station 2 Taxa Winter Summer Winter Summer Hemiptera (continued): Hebridae spp. - - - R Mesoveliidae spp. - - - R Trichoptera: Limnephilus submonififer - - R - Oecetis cinerascens - - - R Coleoptera: Agabus spp. - - R - Ambrysus spp. - R - R Berosus spp. R C - - Celina spp. - - - R Copelatus glyphicus - R Deronectes spp. A - C - Dineutus spp. - R - - Enochrus spp. - - - A Hydrocanthus oblongus - - - C Hyperodes lodingi - R - C Peltodytes spp. - - - R Suphisellus spp. - A C A * Tropisternus spp. - - - R Curculionidae spp. - - - R Diptera: Anopheles spp. - R - - Asheum spp. R - - - Chrysops spp. - C - - Cladotanytarsus spp. - R - - Clinotanypus spp. - C - C Cricotopus spp. C - R - * Dicrotendipes spp. C - C - Diplocladius cultriger - - R - Table 3. (concluded) r r Station 1 Station 2 Taxa Winter Summer Winter Summer Endochironomus spp. - R - - Kiefferulus spp. - R - R Larsia spp. - C - A Palpomyia complex - A - - Polypedilum spp. - - R R * Procladius spp. R C C A Tanypus carinatus - C - R Tanytarsus spp. A R C - Orthocladiinae spp. R - - R Chironomidae spp. (pupae) - - R R Culicidae spp. (pupae) - R - - Arachnida: Acarina spp. R - - - Uninicolidae spp. - R - - Total taxa per station per season 15 35 15 32 Total taxa per station 43 40 Total taxa for 1995 61 10 I ' Table 4. Third-year (1995) fish survey of the upper Whitehurst Creek mitigation channel, Beaufort County, North Carolina. Winter survey conducted 23 February 1995; summer survey conducted 12 ' July 1995. Length expressed as range in total length (in millimeters) of individuals within sample (N) or the first 30 individuals measured. 11 Station 1 Station 2 Winter Summer Winter Summer Species N (Length) N (Length) N (Length) N (Length) Golden shiner (Notemigonus crysoleucas) 0 (NA) 0 (NA) 0 (NA) 1 (140) Dusky shiner (Notropis cummingsae) 0 (NA) 10(20-24) 0 (NA) 2(36-43) Yellow bullhead (Ameiurus natalis) 0 (NA) 0 (NA) 0 (NA) 2 (26-33) Brown bullhead (Ameiurus nebulosus) 1 (149) 0 (NA) 0 (NA) 0 (NA) Banded killifish (Fundulus diphanus) 0 (NA) 1 (71) 0 (NA) 0 (NA) Eastern mosquitofish (Gambusia holbrookr) 0 (NA) 154(19-45) 0 (NA) 85(24-52) Green sunfish (Lepomis cyanellus) 0 (NA) 42 (27-65) 0 (NA) 2 (29-57) Bluegill (Lepomis macrochirus) 11 (32-57) 62 (32-60) 0 (NA) 6(25-35) Pumpkinseed (Lepomis gibbosus) 4(79-111) 1 (57) 0 (NA) 0 (NA) Largemouth bass (Micropterus salmoides) 0 (NA) 2 (87-330) 0 (NA) 0 (NA) Swamp darter (Etheostome fusiforme) 0 (NA) 1 (34) 0 (NA) 0 (NA) Total species per station per season 3 8 0 6 Total species per station 9 6 Total species for third-year survey 11 11 r 1 0 'J C. Water Quality A summary of the monthly water quality analyses is presented in Table 5. This summary includes data collected from September 1994 through December 1995. D. Recolonization A summary of the macroinvertebrate recolonization of the upper Whitehurst Creek mitigation channel through February 1995 is presented in Table 6. A breakdown of macroinvertebrate taxa included within each of the groups presented in' Table 6 is provided in Appendix A. Ninety-four macroinvertebrate taxa are shown as documented from the upper Whitehurst Creek mitigation channel within the three years after its construction. The actual number of species documented is higher since the taxa presented are broken down only to the taxonomic level of effort initially established by DEM personnel during the winter 1992 baseline survey of upper Whitehurst Creek. For example, since DEM identified taxa within the group Coleoptera only to the generic level, the three species within the genus Tropisternus identified during the summer 1994 survey were lumped within the taxon Tropisternus spp. established by DEM. Representative taxa from ten of the eleven macroinvertebrate groups documented during the 1992 baseline survey, as well as an additional group, have been documented as recolonizing the upper Whitehurst Creek mitigation channel. The February 1995 survey included the addition of one group (Oligochaeta) present in the baseline survey but not documented in the mitigation channel during the first two years. Seven of the nine fish species documented in the 1992 baseline survey, as well as five C additional species, have now been documented as recolonizing the upper Whitehurst Creek mitigation channel (Table 7). Four new species of fish were documented in the 1995 surveys. The diversity and number of individuals documented represent increases over previous winter mitigation channel surveys. 12 n 1 L Cl) O 1 Q L M 0 N 1 U L N c 1 C Co L ' U C O co rn a? i a? U L N LL C2 C2 O L O c U 7 'O C O U ' y O N co C t6 C co rn C Q E y 0 1 _O .O +u 0 0 co 1 `U i v-- L Q C O c a) LO C O O ' H LL N O M M M M M N LO co -p M M N N N N - N 0- O O O O O O O O O O O E Q O Q L M 00 CO ?- r, It M N N M O U- CO It N N N N M •- N N O O O O O O O O O O O O LO 1, M w [h CO 1, co N -It 0 N M O It O O O 'It O O O O O O O O O O O O O O O a Q ~ O L M N CO LO M O (0 L• 4- CO M N M M N O M O Q 0 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 a? p O It N o r- It rl ?t It 00 r? O m M M 4 4 0 0 0 Q L a M M O M M LO M M n 1' N O 1,, rl o LO o o d' It o (D o N O 00 M M LO 00 O LO N LO O M M N O O 00 O o . ? O L M CO e- ?- o O 00 LO O 00 r- :3 O O O M N N O 00 O O (U O M M M M M - N N O _0 - N M M M ' M M 00 N > y 4' CO M N N .- ?- N M N M O L O > Z C U L M M M M N (0 LO M 00 O M O co n N d M O qt M M 0 LO LO N N •- .- N N Cl) N M N d M r, 00 LO (0 N O 00 O N N - N c- N M N co co a`- U Q_ E L LO M r, 00 LO (p O N M - 00 F- o N N N N M N > O t\ It (O O 00 (O to O r- n M m N O O •O O O O O O N N? ? ? +r O M O CV N M d LO O M O r- r- O O O O O O O O ` 't ct ?} LO tO LO to Ln Ln LO tO > M M M M M M M M M M M M 13 co O c 0 O C ' Table 6. Summary of macroinvertebrate recolonization of upper Whitehurst Creek mitigation channel within the first three years (1993-1995). 11 1 L i 7 Number of taxa by group Group 1992 Baseline 1993-1995 Upper Whitehurst Creek Mitigation Channel Oligochaeta 3 4 Crustacea 5 5 Ephemeroptera 1 3 Odonata 9 14 Hemiptera 5 9 Coleoptera 15 24 Megaloptera 1 1 Diptera 17 26 Trichoptera 3 3 Orthoptera 1 0 Arachnida 1 4 Mollusca 0 1 Total 61 94 14 Table 7. Fish recolonization of upper Whitehurst Creek mitigation channel within the first three years (1993-1995). Species 1.992 Baseline Upper Whitehurst Creek 1993-1995 Mitigation Channel American eel (Anguilla rostrata) X Golden shiner (Notemigonus crysoleucas) X X Dusky shiner (Notropis cummingsae) X Brown bullhead (Ameiurus nebulosus) X Yellow bullhead (Ameiurus natalis) X Pirate perch (Aphredoderus sayanus) X X Banded killifish (Fundulus diphanus) X Eastern mosquitofish (Gambusia holbrooki) X X Bluespotted sunfish (Enneacanthus gloriosus) X Green sunfish (Lepomis cyanellus) X X Bluegill (Lepomis macrochirus) X X Pumpkinseed (Lepomis gibbosus) X X Largemouth bass (Micropterus salmoides) X Swamp darter (Etheostoma fusiforme) X X Total species 9 12 15 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 IV. SUMMARY Sixty-one taxa of aquatic macroinvertebrates were recorded in the 1992 baseline survey of historical upper Whitehurst Creek, whereas 94 taxa have been documented in the 1993-1995 surveys of the upper Whitehurst Creek mitigation channel. To date, 28 of the 61 taxa (or 45.9 percent) of aquatic macroinvertebrates documented in the 1992 baseline survey have been documented within the mitigation channel. An additional 66 taxa of aquatic macroinvertebrates not documented in the historical upper Whitehurst Creek have been documented within the upper Whitehurst Creek mitigation channel within the three years since its construction. Seven of the nine species (or 77.8 percent) of fish documented in the 1992 baseline survey of historical upper Whitehurst Creek have been documented within the upper Whitehurst Creek mitigation channel. Four additional species of fish not documented in the historical upper Whitehurst Creek have been documented within the upper Whitehurst Creek mitigation channel within three years since its construction. 16 1 APPENDIX A AQUATIC MACRO INVERTEBRATE TAXA DOCUMENTED IN UPPER WHITEHURST CREEK ' FROM 1992 THROUGH 1995 t L 0 I LO rn rn r rn 0 0 L N M rn E O Y U U fn t a? s C O. 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Y ? ?? c x x x x x x x O CL co a y 7 C N Q w CL Q o, o 8 U y c CL C y h ci CL CL OL U) Q ) Q o y 11 a CL U) OL (n h N .O h p q) u h O C a vi Q v) N y Q? QL 0) 1- Q A, Z, cz O C Q Q C C C Q Q Q U C L . N .h Q N O e O O O U O O O : i., QL k J O v p V a a o 03 k O m o C h U U U U U U U U U O 4 W C7 u i = Y ? t Q Q U O f0 N Q O co = O Q 11 1 1 1 LO m CF) 0) 7 O ' t N M 1 ' m x C a a Q ca C x x x x x x x x x x ° c j ? U ? H o `- w rn a? C :+= X X X M m > = E E m X x x x X LO ?t o U m o U m i a M ? ; c X X X M 'ct CD d m e E X X N j ai 4 U 7 m M LL C O M Co ? m ` a) C. Y 4) E X X X X X X X X X m m U U) C , rn m m t m m ? N r c X X X X X Lo J y `0 YO .O h ° o a N j y O O) O y y O ? y C J 'C ` J y ? N ? O '? ° c• ? ,c ? ? ? as a m m .c • 0 ti w c O c ° o ` y `? ro h ? c y Q ? c i j ? y O U to y ? a Q ? O O m ? to y J Q) j q) 3 ? C L .h O y N O C cCn t 0 `0 a°i O c ° ? o Q Q `c o wN- v h Q W m m m > Q ? a m Q > j m y c a) (D z y 5 v c _ w O U) a y o 4 a a) = }? a? a a`) Q. C ql L `n .L] a) _ Y E CD ++ 7 =? a) C O (a a co X (a X m X 0 c c a a i a (n _ 0 C co co 10 0 °' E o U) 5 3 ° -° m a y ° a CD > E Em m a to Q c7 Cl m a- m m m w m c7 m > a -j m O - O t O 1 ? I't PCS Phosphate XV AURORA DIVISION P.O. BOX 48, AURORA, NC 27806 May 23, 1996 Mr. John Dorney Water Quality Section Division of Environmental Management North Carolina Department of EHNR 4401 Reedy Creek Road Raleigh, North Carolina 27607 Mr. Tracy Davis State Mining Specialist Division of Land Resources North Carolina Department of EHNR P. O. Box 27687 Raleigh, North Carolina 27611-7687 Mr. David Franklin Regulatory Branch U. S. Army Corps of Engineers P. O. Box 1890 Wilmington, North Carolina 28402-1890 Dear Gentlemen: With the amount of dry weather that we have been having, the excavation of the Bailey Creek relocation channel is progressing rapidly. However an unanticipated problem has arisen as we approach the western tie-in point. The existing channel comes very close to the top of the slope of the relocated channel, and there is no room in this area to push the spoil. We have designed a solution to this problem, and it is shown in the attached figure. We propose to construct a temporary diversion channel west and north of the existing Bailey Creek channel to reroute the water flow, and fill in a section of the existing channel to allow spoil placement. This diversion channel would include two rock check dams and a settling basin before it reconnects with the Bailey Creek channel. 0 Mr. John Dorney Mr. Tracy Davis Mr. David Franklin May. 23, 1996 Page 2 of 2 We request your review and approval of this construction detail as soon as possible so that we can complete the relocation during this good weather. If you have any questions, please call me at 919/322-8249. Sincerely, 1- C ,tic1?' Je ey C. Furness Environmental Scientist JCF/re Attachment pc: W. A. Schimming (w/attch) S. R. Phillips/12-01-004-28 (w/attch) H. M. Breza/R. M. Smith (w/attch) P. J. Moffett (w/attch) C. H. Brown (w/attch) R M. Chiles (w/attch) 00-14-000 (w/o attch) OZ91 96-ZZ-90 [HXL196D?G m a:: N •? ?:: I I I I IIIII IIIII .. 3 t1' I '?. LD Z N in O af F- o > U o o Q o a w ~ ` Y??? N Q U U Lj a w N? J U u Ni 0 oWz \ \ o w a I I ( IIIIII a .. :. LLJ co un aa y z u O? }1 o???a \ i ? I I I IIIII N D IIIIII g R ? I I L WU33S i l IIIIII ' aa a ? II ? II III . ? •- . II I I ?§ Q i ?wS < II u N ? I I IIIIII s ?? ? II ? II IIIIII ? :? ?? o C?g, ?. rm n Alit f . 1( PCs Phosphate AURORA DIVISION P.O. BOX 48, AURORA, NC 27806 May 28, 1996 Mr. John, Dorney Water Quality Section Division of Environmental Management North Carolina Department of EHNR 4401 Reedy Creek Road Raleigh, North Carolina 27607 Dear Mr. Dorney: On December 15, 1995, PCS Phosphate applied for a 401 Water Quality Certification for impacts to the upper channelized drainage to Bailey Creek. In the cover letter for that application, we also requested that certain conditions in the 401 Certification for Whitehurst Creek (dated June 30, 1992) be deleted. These conditions involved the requirement for reclamation of Whitehurst Creek within 4 years from the date of mining the fork of the two drainage prongs and a $1,000 per day penalty if it was not reclaimed by then. We also outlined a modified reclamation plan for the whole southern mining area encompassing the Whitehurst and Bailey Creek drainages, and a map of this plan was provided. We agreed at the time that the Bailey Creek 401 would be the issue of priority for DEM to focus on. Now that the 401 Certification for Bailey Creek has been approved, the Whitehurst Creek issue needs to be addressed. At the time of the issuance of the initial 401 Certification for Whitehurst Creek (June 1992), it was believed that the restoration of the upper channelized drainage to Whitehurst Creek could be accomplished within the 4-year time frame stipulated in the permit. We believed that we were close to completing the EIS process that had begun in 1988. However, the EIS process is still not completed, which has caused PCS Phosphate to request three additional modifications to our mining permit to continue mining in upland areas in the southern portion of our property. As long as mining activities continue in this southern area, the mine utility corridor (2 canals, pipelines and road) needs to remain in place near the old S. R. 1941 bridge, which precludes tieing-in'a reclaimed channel to the main Whitehurst Creek channel. We project that this corridor will need to remain much longer than anticipated when the Whitehurst Creek 401 Certification was agreed to (Figure 1). In the December 15, 1995 letter, a proposal was put forth to create one channel for Whitehurst Creek through reclaimed land and to also let the current Whitehurst Creek mitigation channel remain in place permanently. This makes the most ecological sense based on the direction that stormwater would flow off the reclaimed land, and would result in approximately 8,200 feet of restored channel compared to a currently required 5,000 feet. We believe that there is no reason to not use the mitigation channel that is already in place and is functioning better than the original channel for part of the permanent reclamation of this area. Mr. John Dorney May 28, 1996 Page 2 of 2 We still are proposing that scenario, however we propose to modify the design of the channel constructed through reclaimed land to be similar to the design recently approved for the relocation of Bailey Creek. That is, there will be an approximately 50-foot wide floodplain slightly elevated along each side of a 10-foot wide channel. This will result in approximately 7 acres of bottomland hardwood wetland, which did not originally exist. Enclosed are large drawings which show the design of the reclaimed channel and the overall reclamation plans for the area. The construction of the channel through reclaimed land would be accomplished in two phases. The first phase of constructing the main portion of the channel would be done by April 1998. The second phase would be tieing-in the new channel to the original channel, which would be done by April 2003. This timing is outlined in Figure 2. Notice that the total delay in the restoration of Whitehurst Creek is 5 years, which equals the amount of time that we will have mined in this area over what we originally believed we would. For this reason, we request that the condition in the original 401 Certification that the restoration of upper channelized drainage to Whitehurst Creek be completed within the 4-year time frame (by June 1998) be modified to reflect the 5-year delay and specify restoration by June 2003. In addition, we request that the $1,000 per day penalty condition be dropped since the existing Whitehurst Creek mitigation channel equals the total length of the original channelized drainage and is functioning better than the original channel. A table highlighting the benefits of the new plans for Whitehurst Creek is also enclosed. If you have any questions on this request, please call me at 919/322-8249. Sincerely, Jeffrey C. Furness JCF/re Enclosures PC: Tracy Davis - DLR, Raleigh (w/encl) W. A. Schimming (w/encl) W. T. Cooper (w/o encl) S. R. Phillips/12-01-004-26 (w/encl) H. M. Breza/D. J. Millman (w/encl) P. J. Moffett (w/encl) 00-14-000 (w/o encl) U AAWC40I chg. f 1=;: f i U) 0 cc IM co CD an C13 y i v a O i Qi O ? T V 0 ? L cz a? cz co E m 'X O p. U ¢ m d- N m LO Cfl im v O N co v - H C/) V v v v CD ° ¢ ¢ ¢ ¢ z c c o ti 0 CO 0 N 0 ti cm p o C ° E- F.- 0 CL CM a ? E CCC_ G 2 § Cn c 0 c? L O Cl. L Cn CD L W m C a? cz c c a? 'o L .C G T- 4) L tm LL PENN O O O y O co i v CO) ¦c 4, M O N ca d O A: O O d' cts; o E CV . 2' rn cn a: Q c ? O ? ti cn c ?. L cn cn O .? o ?. a m V .; : E °. W O O Y V d O i LO "" U 7 .C G U p O O O O a O+ .+ O :«+ m-V , 0 0 C ?..p i p N ch le N O i - • s ca N U F= r ._% k p r c *-, a c •I- :v ? ?, c o o o ?, c tm C? *- •- -o _ : • O IM U N m m 0 m O 0 CL . E .C c° o o C ° d X 0w O i F-i- O L M X aWF-F- -W M a. ? a s a .. ? ?' 0 o"'O IM a•°i i c 0 L 0 O i ° F. 0 -e Q. . a p N d L w a go Comparison Between Whitehurst Creek Restoration Plans Currently Approved Plan Proposed Plan Total Channel Restoration Length Bottom Width Side Slopes Topsoil Placement Bottomland Hardwood Acreage Completion Timing 5000 ft. Approx. 8200 ft. 10 ft. channel 110 ft. (incl. 10 ft. channel) 6:1 to 10:1 4:1 side slopes & bottom bottom 0 acres Two prongs totalling 5,000 ft. June 1998" Approx. 7 acres Eastern Prong: 5,000 ft. w/stilling basin March 1996 Western Prong: 3,200 ft. (2 phases) Phase I 2,400 ft. June 1998 Phase II 800 ft. June 2003 Required by DEM 401 Water Quality Certification of 6/92 Benefits of the Proposed Whitehurst Creek Restoration Plan 1. East Prong - Current Whitehurst Creek Mitigation Channel A. Already established (constructed in 1992 and 1996) 1. 5000 ft. long channel (as long as original total length) 2. stilling basin (extra surface water area) 3. trees are planted i. 538 trees/acre of 12 species ii. 20% balled and burlapped (350 trees), 80% bare-root seedlings II. West Prong - To be constructed in reclaimed area, approximately 3200 ft. long and 7 acres of bottomland hardwood area. A. Phase I 1. approx. 2400 ft. 2. excavation and topsoil placement in 1996 and 1997 3. 50 ft. floodplain on each side of channel 4. tree planting in February 1998 i. 538 trees/acre of 12 species ii. 20% balled and burlapped and 80% bare-root seedlings B. Phase II (east and west tie-ins) 1. approx. 800 ft. 2. excavation (tie-ins of both ends) and topsoil placement in 2002 3. tree planting in February 2003 L 538 trees/acre of 12 species 1 20% balled and burlapped and 80% bare-root seedlings ? U .?' PCS Phosphate AURORA DIVISION P.O. BOX 48, AURORA, NC 27806 December 15, 1995 Mr. Steve Tedder, Chief Water Quality Section Division of Environmental Management North Carolina Department of EHNR P. O. Box 29535 Raleigh, North Carolina 27626-0535 Dear Mr. Tedder: PCS Phosphate has applied to the Division of Land Resources to modify its mining permit by adding 770 acres to the existing permitted acreage. This modification is necessary to allow PCS Phosphate to continue mining while the Environmental Impact Statement process is continuing. A small portion of this 770-acre area includes a segment of the upper channelized drainage to Bailey Creek. A No. 26 Nationwide Permit application has been submitted to the Corps of Engineers to impact approximately 0.3 acres of "Waters of the U. S." in the channel itself. It is estimated that "Waters of the State" would be less than one acre and, therefore, 7 copies of an application for a 401 Water Quality Certification are enclosed. Included with each application is a reclamation plan and several drawings that relate to this permit request. PCS Phosphate proposes to permanently relocate a segment of this channelized drainage to Bailey Creek to the perimeter of the mining area prior to impacting the existing channel. This channel relocation plan is outlined in the enclosed reclamation plan and detailed in the enclosed drawing titled "Construction Plan for the Relocated Channel for the 770 Acre Mine Block." Also enclosed with this application is a large drawing titled "Reclamation Plan for the 770/290/360/700 Acre Mine Blocks". This drawing visually depicts what the narrative reclamation plan describes. Because of the necessity to continue mining in this southwest area long after PCS had hoped to be mining in the eastern tract, plans for reclaiming this site are required to be altered from those previously approved. i do ?.A Mr. Steve Tedder, Chief December 15, 1995 Page 2 of 2 As long as mining activities continue in this southern area, the mine utility corridor (2 canals, power line, pipelines and road) needs to remain in place near the old S . R. 1941 bridge. This means that any Whitehurst Creek channel constructed in reclaimed land could not be tied-in to the existing lower channel until the utility corridor is no longer required. Therefore we request that the conditions that Whitehurst Creek be restored to its original location within four years after mining through the junction of the two prongs and the penalty of $1,000 per day if it is not restored in four years, be deleted from Water Quality Certification 2748, which was issued on June 30, 1992. As can be seen from the large reclamation map, we propose to create one channel for Whitehurst Creek through reclaimed land and to also let the current Whitehurst Creek mitigation channel.remain in place permanently. This makes the most ecological sense based on the direction that stormwater would flow off the reclaimed land, and would result in approximately 7,600 feet of restored channel compared to a currently required 5,000 feet. We believe that there is no reason to not use the mitigation channel that is already in place and functioning better than the original channel for part of the permanent reclamation of this area. Thank you for your assistance in contact Jeff Furness of my staff questions. Sincerely, IZ C N4ruw a Peacock Environmental Affairs BAP:JCF/re Enclosures pc: Roger Thorpe - DEM, WaRO T. J. Regan (w/o encl) T. C. Younger (w/o encl) W. A. Schimming (w/o encl) W. T. Cooper (w/o encl) H. M. Breza/I. K. Gilmore P. J. Moffett (w/encl) J. C. Furness (w/o encl) 00-17-000 (w/o encl) 12-01-004-28 (w/encl) this matter. Please feel free to at 919/322-8249 if you have any (w/encl) (w/o encl ) « '?