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<br />CFRo,M CCh.ORJ~DO RESOV~,C~s C~Re~~£ ~i~,x,Be~ 021
<br />Ta61e 6.--~:nemical and oioZoCical quality cf surface ~~atar at sites
<br />scnrrpled to determine the effect of coal
<br />.minting in Colorado, 1872
<br />[STATION NAME: ab, above; bl, below; Bk, Brook; Cn, Canyon; CO, Colo-
<br />rado; Co., County; C, Creek; di, distributarq; D, Ditch; E, East; F,
<br />Fork; Ft., Fort; Gdn, Golden; G1, Gulch; Hwy, Highway; Lk, Lake; L,
<br />Little; M, Middle; mo, mouth; Mtn, Mountain; nr, near; N, North; No.
<br />Number; Re, Reservoir; R, River; St., Saint; stp, sewage treatment
<br />plant; S, South; Spgs, Springs; cr, tributary; U.S., United States;
<br />W, West.
<br />PRLNCIPAL MERIDIAN: YM, Yew Mexico; S, Sixth; U, Ute.
<br />STREtLK CONDITIONS: IR, irrigation return flow suspected; YF, no Elow;
<br />R0, runoff due to rain; SF, Elow primarily from underground springs(s)
<br />just upstream; SM, runoff due. to snowmelt. BGC, blue-gray coating on
<br />rocks; BOC, black-orange coating; CBC, gray-brown coating; OC, orange
<br />coating; OTC, orange-[an coating; RC, red coating; ROC, red-orange
<br />• coating; TC, tan coating. BS, black stain on racks; GBS, gray-brown
<br />stain; OS, orange stain; RS, red stain. BT, water has brown tinge;
<br />GT, gray tinge; GBT, gray-brown tinge; OT, orange tinge; WT, white
<br />tinge; YT, yellow tinge. VST, water is very slightly turbid; ST,
<br />slightly turbid; T, turbid; VT, very turbid.
<br />:iQUATIC ORGANISMS (no distinction among riffle, edge, and bottom samp-
<br />les): A, absent; 1, one organism observed; P, present, P-C, present
<br />to common; C, common; C+, abundant; (?), classification questionable.]
<br />•
<br />558
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