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<br />G^_C.'ti4 RULES CJID YEGULATIONS
<br />1~rs lK~•n nhl al.•IL'd..^..sy br cnifil(d Lo an
<br />rxcha:~t:e of the Frdc: s] coal ]case for s
<br />trier of nWer F'edera] coal dcposf LS under
<br />.arctlon 510 (b)151 of the Act. or to the
<br />rn;nvyance by the Secretary of lee title
<br />to other asallnble Federal coal deposits
<br />1n cx Change for the lee L1tle to such
<br />drpaxtLS under section 206 of the Federal
<br />Land Pnllcy and Management Act of
<br />]976 19D Stet. 2793), 1f Lhe Secretary de-
<br />icrnrlnes that substantial flnanclal and
<br />legs] cummllments acre made by the
<br />o7rcrator prlo.- W January 1, 1977. In con-
<br />nrctlnr. v,~1th surface coal mining opc:a-
<br />tlons on ~ucb ]ands.
<br />(5> The SccftLary may, 1f he deter-
<br />mines tiuat the person is qualNed for sa
<br />exchange of Federal coal leases under
<br />the Provlslons of section 510(bt (5) of the
<br />Act or a conveyance of other Federal coal
<br />deposits under section 206 of the Federal
<br />Iand PullcS and Mana;,emen[ Act, Lake
<br />rf,preprlate sLCps to r.omplate the ex-
<br />rlrmge of lands. The sccretarp may re-
<br />Gufre the person W submit addl Lion al ln-
<br />formatlon and a formal application for
<br />exchange.
<br />(k) Permanent impoundments. The
<br />permlttee may construct, if auLh orized
<br />by the regu]aLOr)' agency pursuant t0
<br />Ufa p_'agreph and (715.]3, permanent
<br />writer Impoundments on min log s1 Les as
<br />~ part o} reclamstion activltles only when
<br />they are ad equaLelc dcmonst:aLed to be
<br />in compliance with 9 715.]3 and § 715.14
<br />1n addition to the folloa•frrg require-
<br />ments:
<br />ll) The s1u of the Impoundment Is
<br />adequate for 11s intended purposes.
<br />(2) The lmpovndment dam construc-
<br />tlon 1s designed to arSUeve necessary
<br />sixblllty with an adequate margin of
<br />safety compatible a-ith that of structures
<br />constructed under Pub. L 83-566 (16
<br />II.S.C.1006)-
<br />(3) Toe quality of Lhe impounded
<br />water w1ll lx svltable on sperm anent_
<br />bests for !ts tntended~use and discharges
<br />from the Impoundment wll] not degrade
<br />the quality of receiving n•aters below Lhe
<br />water qualltp standards established p~r-
<br />suant to eppllcable Federal and State
<br />law.
<br />(4) The level of a-ater will be reason-
<br />ably slabie. -
<br />(5) F'lnal grading will comply with the
<br />provlslons of 9 715.14 and will 'provide
<br />adequate safety and access for proposed
<br />water users.
<br />(6) Water impoundments w1ll not re-
<br />sult in the Clminutioa of the qunllty or
<br />quern Uty of water used by adjacent or
<br />surrounding landowners for agricultural,
<br />lndustrfal, recreational, or domestic
<br />us -
<br />Nvdrniopfe im act o roads. <3)
<br />G era . ceess and a roaos and av-
<br />sorJated b:i dges, culverts, dl tches, and
<br />road rights-of-nay shall be cronstructetl,
<br />mxintalned, and reclaimed W preventad-
<br />ditlonal contrlbu Lions of suspended solids
<br />to st: eamflow, or to runoff outside the
<br />pe:mlt area to the extent possible, using
<br />the best icchno)ogy currently available
<br />In no event shall the contributions be 1n
<br />excess of regal cameo is set by nppllcable
<br />State or Federal law. All access and haul
<br />roads tt7aaD Ue removed and the ]trod af-
<br />ftttc-d ruF :.d cd and rcvrYC:af<•d cnnslst-
<br />tent vcl tl. the req uinments o1 f 715.14
<br />and i 715.20, urillzs rcLCn UOa of a rood b
<br />approved ss part of a posttrdrdng land
<br />use under 0 715.13 as bcing necessary to
<br />support the postmining land use or
<br />necersary to adequately contra] erasion
<br />and the necessary maintenance is es-
<br />su
<br />2 Construction. (1) All roads, Insofar
<br />as Docsible-~~e located on ridges or
<br />on the avallable flatter and more stable
<br />slopes to minim lu erosion. 6trcam fords
<br />are prohibited unless they are speclfl-
<br />cally approved by Lhe regulatory au=
<br />Lh orlty aS temporary' routes across dry
<br />streams that will' not adversely affect
<br />sedimentation and that a•)I] not be used
<br />for coal haulage. Other stream crossing
<br />shall be made using bridges, culverts or
<br />other structures designed and con-
<br />atrucLed to meet the requirements of this
<br />paragraph. Roads shall not be located
<br />1n active stream ch anneLs nor shall they
<br />be constructed or main tafned ins man-
<br />ner that increases erosloa or causes s1g-
<br />nlflcant sedimentation or fluoding. Aow-
<br />ever, nothing fa this paragraph w111 lx
<br />construed to prohlblt relocation of
<br />stream channels 1n accordance with
<br />pa~apb fd) of this section.
<br />11 In order to minlatlze erosion and
<br />subsequent disturbances of the hydro-
<br />logic balance, roads shall be constructed
<br />1n compliance with the following grade
<br />restrictions or other grades determ lased
<br />by Lae regulatory authority to be neces-
<br />sar~~r..~~o control erosion:
<br />(A~ The overall sustained cede shall
<br />no ace ip:10 ( Opercen
<br />(B) The manmum gra a greater than
<br />10 pe: cent shall not exceed 1p:6.5h 115
<br />pe tit) for more than 300 feet.
<br />(C) There shall not be more than 300
<br />fee a excee ]0 accent w1t fn
<br />sac 1.000 feet.
<br />(111) All access and haul roads shall be
<br />adequately d: atned using structures such
<br />as, but not I1m1Led to, ditches, water bar-
<br />riers, cross drains, and ditch relief drains.
<br />For access and haul roads that are to be
<br />main tafned for more than 1 year, water-
<br />control structures shall be designed with
<br />a discharge capacity capable of passing
<br />the peak LvaoH Irom a ]0-year, 29-hour
<br />preUpltatlon event. 77rafnage pipes and
<br />culverts shall be constructed W avoid
<br />plugging or collapse and erosion at inlets
<br />and outlets. D: ainage ditches shall be
<br />provided aC the tce of all cut slopes
<br />formed by construction of roads. Trash
<br />racks and debris basins shall be installed
<br />fa the drainage ditches wherever debris
<br />from the drainage area could Impair the
<br />functions of drainage and sediment con-
<br />trol structures. Ditch relief and cross
<br />drains shall be spaced according to grade.
<br />Effluent 11m1tatlons of paragraph (s) of
<br />this section shall not apply to drainage
<br />from access and haul road:, located out-
<br />side the disturbed area as defined 1n
<br />this section unless otherwise specified by
<br />Lre regulatory authority.
<br />(1v) Access and haul roads shall lx
<br />surfaced with durabie material. Tozic-
<br />or acid-forming substances Shan not be
<br />used. Vegetation may be cleared only for
<br />Ulc cn••cntf a] wlCih nccc.cx:y for road
<br />and r_..oclxtrd Citcb conslnctfan and W
<br />scn~e CrnfOc nct~s.
<br />f3> Main tens nee (1) Access and haul
<br />roads shall be routlncly mafnialned by
<br />means such as, but not ]Smiled to, wcl-
<br />t1ng, scraping or surfacing.
<br />IU) D1LChes, eu]verts, drains, trash
<br />racks, debris basins and other structures
<br />serving to drain access and haul roads
<br />shall not be restricted or blocked In any
<br />manner that Impedes drainage or ad-
<br />versely affects the Intended purpose of
<br />Lhe structure.
<br /><m) Hydrologic lmTwefR of other
<br />ira>arport faclIifies. R.allroad loops, spurs.
<br />sldings and other transport facl7ities
<br />shall be constructed, main tafned and re-
<br />claimed to control diminutfon or degra-
<br />daUOn of water quail ty and quan Uty end
<br />to prevent addltlonal Contributions of
<br />suspended solids to strenmflow, or to run-
<br />off outside the permit area to the extent
<br />possible. using the best technology cur-
<br />rently available. In no event shall con-
<br />tributions be Sn excess of requ)rements•
<br />set by applicable State or Federal law.
<br />(n) Diseharpe of [Haters info under-
<br />pround mines. Surface and ground wa-
<br />ters shall not lie discharged or diverted
<br />Snt,o underground mine workings.
<br />§ 715.18 Dump tonal nrrted of or im-
<br />pounding waste material.
<br />(aT Genera!. No w-este materla] shall
<br />be used 1n or impounded by exlstinR or
<br />new dams wlthovt the approve] of the
<br />regulatory authority. The parent ties shell
<br />design, locate, construct, operate, main-
<br />tain, modify. and abandon or remove ell
<br />dams (used either temporartly or perma-
<br />nently) constructed of waste materials.
<br />!n accordance wlih the requirement/ of
<br />this section.
<br />(b) ConsLruc[ion o) dams. (1) Waste
<br />shall not be used 1n the construction of
<br />dams unless demonstrated through ap-
<br />propriate engineering analysis, to have
<br />ao adverse street on stabiLty.
<br />(2) Plans for dams subiect to this sec-
<br />tion, a.nd also lncluding those dams that
<br />do not meet the siu or other ulteria of
<br />4 77.216(e) of this tie, shall be approved
<br />by the regulatory authority before con-
<br />struction and shall contain the minimum
<br />plan requirements established by the
<br />7Jfining EYlforcement and Safety Admin-
<br />Lstration pursuant to 4 77.210-2 of Lh 15
<br />title.
<br />(3) Construction requirements aze ass
<br />follows:
<br />(f) Design shall be based on the flood
<br />Irom the probable maximum preclpfta-
<br />tion event unless the Dermittee shows
<br />that the failure of the impounding
<br />structure would not cause loss 'ot life or
<br />severely damage. property or the envi-
<br />ronment, m which case, depending on
<br />site conditions. a design based on a pre-
<br />cipitation event of no less than 100-year
<br />frequency may be approved by the regu-
<br />latory authority.
<br />(i1) The design freeboard distance be-
<br />tween the lowest point on the embank-
<br />ment crest and the maximum water e1e-
<br />vatlon shal3 be at least 3 feet W avoid
<br />overtopping by wind and wave ectlon
<br />(Ill) Dams shall have minimum safety
<br />factors az follows:
<br />EE DERAI REGISTER, VOL 47, NO. 779-TUESpA7, Df CEMaER 17, 1977
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