Dissolved Oxygen Sample Clauses

Dissolved Oxygen. Xxxxxx/Xxxxx/Croton Project – No less than 5 mg/L in the project tailwaters.
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Dissolved Oxygen. The analysis will also look at methods of increasing waterway-dissolved oxygen, which falls below existing and proposed standards, especially after storm events. Water quality modeling is included in the analysis. Combined Sewer Overflow (CSO) Public Notification Plans The Illinois EPA and U.S. EPA are jointly reviewing the permit required Combined Sewer Overflow (CSO) public notification plans for both MWRDGC and the City of Chicago. Following the completion of that review, Illinois EPA & U.S. EPA will submit comments to MWRDGC. MWRDGC will then revise and resubmit their CSO public notification plan, including CSO outfall sign language. Illinois EPA will review the revised MWRDGC CSO public notification plan details, and if the permittee=s (MWRDGC) proposed plan is acceptable to Illinois EPA, Illinois EPA will send an approval letter to MWRDGC. Illinois EPA=s approval letter, per MWRDGC permit language, triggers a three-month timeframe within which MWRDGC must implement the plan, including posting of signs. Illinois EPA and U.S. EPA will cooperatively pursue timely completion and implementation of a CSO public notification plan by the City of Chicago similar to and compatible with the plan being developed and implemented by the District. Direct communication among the City, Agency and region will be initiated during November 2004 with the intent that public notification practices be functional. Illinois EPA and U.S. EPA will consider all available options to achieve this objective including administrative and, if appropriate, enforcement approaches.
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Dissolved Oxygen. In the Connecting Channels and in the upper waters of the Lakes, the dissolved oxygen level should be not less than 6.0 milligrams per litre at any time; in hypolimnetic waters, it should be not less than necessary for the support of fish life, particularly cold water species.
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Dissolved Oxygen. Dissolved Oxygen values for Tanyard Creek and Stone Mountain Creek showed a normal distribution of DO while Peavine Creek showed a skewed right distribution of DO for the sampling season (Appendix A: Figure 9, Figure 14, Figure 19). The distribution of DO readings for Peavine indicates that more values were higher than lower and the higher values had a greater influence on the overall average. This difference in DO can be attributed to the physical habitat of the stream site sampled as well as the difference in volume and velocity of the water flowing in the water body. The Wilcoxon Rank Sum Test results for DO indicate that a statistically significant difference between median rank value for DO existed between Peavine Creek and Stone Mountain Creek (p<0.0003) and between Tanyard Creek and Peavine Creek (p<0.0086), but not between Tanyard Creek and Stone Mountain Creek (p>0.1423). Taking into consideration that DO is dependent upon temperature (colder water can hold more oxygen than warmer water) and physical characteristics of the creek, this is a plausible observation because sampling was done at different times of the day for each creek and the adjacent land use of each creek differs from each other. Sampling at Tanyard Creek was done in the early morning between 8AM and 11AM, and the adjacent land use of the creek includes an increase in impervious surfaces near parks and residential areas and a golf course. Runoff from the impervious surfaces and from the golf course can cause an increase in chemical pollutants, and in addition Tanyard Creek is a CSO overflow facility which is victim to a decrease in nutrient content and an increase in salt and runoff into the water. Peavine Creek was sampled in the mid afternoon from 12PM to 2PM, and changes in the land use from site PA to site PD could be a possible cause for the fluctuations in DO throughout the stream. Stone Mountain Creek was sampled in the late afternoon between 3PM and 6PM and had the lowest average DO levels among the creeks: mean DO at Stone Mountain Creek was 8.491 mg/L, 8.902 mg/L at Tanyard Creek, and 9.494 mg/L at Peavine Creek. The lower average DO level at Stone Mountain is surprising because there is not runoff from impervious surfaces or from human interaction with the water. In addition because the creek is nestled away in the xxxxx it is protected from the affects of development. Dissolved Oxygen is an important indicator of how polluted the water is and how well the water can suppo...
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Dissolved Oxygen. To avoid nuisance conditions, dissolved oxygen shall be maintained at not less than 2.0 mg/ l as a daily average and at no time allowed to fall to anoxic levels.
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Dissolved Oxygen. 020201 ................ Bayou Des Allemands—Lac Des Allemands to Hwy. U.S. 90 (scenic) ................................................ Nutrients.
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Dissolved Oxygen. 020303 ................ Lake Cataouatche and Tributaries .........................................................................................................
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Dissolved Oxygen. The water quality standards for DO state that concentrations “shall have a one-day minimum 8.0 milligrams per liter (mg/L)”. All measurements taken in the Reservoir complied with that standard (Figure 2-2). Increasing DO concentrations were measured from upriver to downriver each month. The lowest DO measured in water year (WY) 2000 was 8.26 mg/L in September at the Xxxxx Dam tailrace. Average DO concentrations were commonly over 10 mg/L for all categories of stations. The DO levels increased as water moved downstream through the Reservoir and the same increasing trend was observed, for all months except May, when comparing DO at the Rocky Reach Dam tailrace to the Xxxxx Dam tailrace. These differences averaged 0.35 mg/L for all months, with largest differences in October, February, and May. Generally, littoral DO concentrations were greater than at pelagic stations, but the average differences were less than 0.15 mg/L. One-meter DO monthly profiles show little variability among categories (littoral, pelagic or tailrace) of stations. Figure 2-2: Dissolved Oxygen Profiles for Categories of Stations from Rocky Reach Reservoir and the Entiat River, WY 2000 (Parametrix and Xxxxxx, 2001)
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Dissolved Oxygen. Due to large fluctuations in influent AMD dissolved oxygen (DO) values through time; these values were used as a baseline for comparison of DO measurements made for each reactor. Therefore, Figures 15 & 16 outline the changes in dissolved oxygen (ΔDO) from influent to the simulated acid impoundments (AMD overlying the treatment media within the barrels) and then simulated acid impoundments to effluent, respectively. The following equations were used to derive values obtained for each figure: DO(Acid Impoundment) - DO(Influent) = ΔDO(In 🡪 AI) (Figure 15) DO(Effluent) - DO(Acid Impoundment) = ΔDO(AI 🡪 Eff) (Figure 16)‌‌ Where DO(Influent), DO(Acid Impoundment) and DO(Effluent) represents the absolute dissolved oxygen values in ppm measured at the AMD influent, the reactor’s acid impoundment and the reactor’s effluent, respectively. Thus, positive ΔDO values represent net increases in DO concentration and negative ΔDO values coincide with net consumption of DO as AMD influent travels to the acid impoundments and then though the treatment media to exit the effluent ports of each reactor. Overall R1 through R6 displayed the same values in ΔDO(In🡪AI) and ΔDO(AI🡪Eff) values throughout the entire experiment. During the first two months (August-October 2012) there was an average decrease in DO (ΔDO(In🡪AI) = -2.71 ppm) measurements from the influent to the acid impoundment of each reactor. The following five months (November 2012-March 2013) displayed an average increase in DO (ΔDO(In🡪AI) = +3.77ppm) from the influent to the acid impoundments on top of each reactor. Change in Dissolved Oxygen ΔDO (ppm) 15‌‌‌‌ 10 5‌ -10 Influent to Acid Pond Dissolved Oxygen Reactor 1 (LS)‌ Reactor 2 (10:90)‌ Reactor 3 (30:70)‌ Reactor 4 (50:50)‌ Reactor 5 (70:30)‌ Reactor 6 (90:10)‌ Sampling Date‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌ Figure 15: Changes in dissolved oxygen measurements (DO) from influent AMD to the acid impoundments of each reactor (R1-R6). Positive ΔDO correspond to a net increase in DO from influent while negative ΔDO indicates a net decrease.‌‌‌‌‌‌‌‌‌‌ As for the final months of the experiment (May 2013 – early September 2013) an overall decrease of DO (ΔDO(In🡪AI) = -1.11ppm) was once again measured. In contrast, during the first‌ two months (August – October 2012) a slight increase in DO (ΔDO(AI🡪Eff) = +0.24ppm) was measured on average from the acid impoundments to the effluent ports of each reactor. A striking decrease in DO (ΔDO(AI🡪Eff) = -7.63ppm) was recorded in the fol...
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Related to Dissolved Oxygen

  • Dissolving Events The Partnership shall be liquidated and dissolved in the manner hereinafter provided upon the happening of any of the following events, whichever first occurs:

  • Dissolution and Winding Up The Company shall dissolve and its business and affairs shall be wound up pursuant to a written instrument executed by the Member. In such event, after satisfying creditors, all remaining assets shall be distributed to the Member.

  • Dissolution of the Partnership The Partnership shall be dissolved upon the occurrence of any of the following:

  • Continuation of the Business of the Partnership After Dissolution Upon (a) dissolution of the Partnership following an Event of Withdrawal caused by the withdrawal or removal of the General Partner as provided in Section 11.1(a)(i) or (iii) and the failure of the Partners to select a successor to such Departing General Partner pursuant to Section 11.1 or Section 11.2, then, to the maximum extent permitted by law, within 90 days thereafter, or (b) dissolution of the Partnership upon an event constituting an Event of Withdrawal as defined in Section 11.1(a)(iv), (v) or (vi), then, to the maximum extent permitted by law, within 180 days thereafter, the holders of a Unit Majority may elect to continue the business of the Partnership on the same terms and conditions set forth in this Agreement by appointing as a successor General Partner a Person approved by the holders of a Unit Majority. Unless such an election is made within the applicable time period as set forth above, the Partnership shall conduct only activities necessary to wind up its affairs. If such an election is so made, then:

  • Dissolution The Company shall be dissolved and its affairs shall be wound up on the first to occur of the following:

  • Dissolution and Winding Up of the Company Dissolution. The Company will be dissolved on the happening of any of the following events: Sale, transfer, or other disposition of all or substantially all of the property of the Company; The agreement of all of the Members; By operation of law; or The death, incompetence, expulsion, or bankruptcy of a Member, or the occurrence of any event that terminates the continued membership of a Member in the Company, unless there are then remaining at least the minimum number of Members required by law and all of the remaining Members, within 120 days after the date of the event, elect to continue the business of the Company.

  • Dissolution Event If there is a Dissolution Event before the termination of this Safe, the Investor will automatically be entitled (subject to the liquidation priority set forth in Section 1(d) below) to receive a portion of Proceeds equal to the Cash-Out Amount, due and payable to the Investor immediately prior to the consummation of the Dissolution Event.

  • Dissolution, etc Wind up, liquidate or dissolve (voluntarily or involuntarily) or commence or suffer any proceedings seeking any such winding up, liquidation or dissolution, except in connection with a merger or consolidation permitted pursuant to Section 10.8.

  • Dissolution Winding Up (a) The Company shall be dissolved upon (i) the adoption of a plan of dissolution by the members or (ii) the occurrence of any event required to cause the dissolution of the Company under the Delaware Limited Liability Company Act.

  • Effective Date of Dissolution Any dissolution of the Company shall be effective as of the date on which the event occurs giving rise to such dissolution, but the Company shall not terminate unless and until all its affairs have been wound up and its assets distributed in accordance with the provisions of the Act and the Certificate is cancelled.

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