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Water: Nutrients

Missouri Criteria Development Progress

Missouri State 

This page provides information about the progress Missouri has made towards the development of numeric criteria and shows what statewide and site-specific criteria are currently in effect.

Note: The information on the tabs below reflects the information available on EPA’s Water Quality Standards Repository. The criteria presented here will be updated as new water quality standards documents are posted to the Repository.


Numeric Criteria Development

The information presented below gives a summary of state progress towards the development of numeric criteria. The information comes from EPA’s “State Adoption of Numeric Nutrient Standards (1998-2008)” report, current water quality standards, program activity measures, and nutrient criteria development plans. Links to the Missouri’s Nutrient Criteria Plan and state water quality standards are also provided.


Existing Numeric Criteria

Waterbody Type N P Chl-a Clarity
Lakes & Reservoirs W W W  
Rivers & Streams        
Estuaries N ⁄ A N ⁄ A N ⁄ A N ⁄ A
Wetlands        

S = Statewide    W = For selected waterbody    N ⁄ A=Not Applicable

Note: See Statewide Criteria and Site-specific Criteria tabs for more information.

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Plan:

WQS: Missouri Water Quality Standards
Missouri DNR: Water Quality Standards Exit EPA Disclaimer

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Milestone Information

Milestone information updated May 2012.


Milestone
Rivers and Streams Lakes and Reservoirs Estuaries and Coastal Waters
TN TP TN TP TN TP
Planning for criteria development  Complete  Complete  Complete  Complete  Not applicable  Not applicable
Collection of information and data  Complete  Complete  Complete  Complete  Not applicable  Not applicable
Analysis of information and data  Complete  Complete  Complete  Complete  Not applicable  Not applicable
Proposal of criteria  No date provided  No date provided  No date provided  No date provided  Not applicable  Not applicable
Adoption of criteria (EPA-Approved)  No date provided  No date provided  No date provided  No date provided  Not applicable  Not applicable

TN: Total Nitrogen; TP: Total Phosphorus

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Statewide Criteria

The information on this tab shows EPA-approved nutrient criteria for Missouri’s waterbodies. The language presented below comes directly from state water quality standards and applies to all waterbodies within the state (unless a waterbody type or designated use is noted). Criteria applicable to specific waterbodies within the state can be found on the “Site-specific Criteria” tab. For more information, refer to the Missouri water quality standards.

The following information reflects Missouri’s water quality standards posted to the Water Quality Standards Repository as of October 2011 (EPA-approved August 2011).

10 CSR 20-7.031 Water Quality Standards
(3) General Criteria. The following water quality criteria shall be applicable to all waters of the state at all times including mixing zones. No water contaminant, by itself or in combination with other substances, shall prevent the waters of the state from meeting the following conditions:

(C) Waters shall be free from substances in sufficient amounts to cause unsightly color or turbidity, offensive odor or prevent full maintenance of beneficial uses;

(4) Specific Criteria. The specific criteria shall apply to classified waters.  Protection of drinking water supply is limited to surface waters designated for raw drinking water supply and aquifers. Protection of whole body contact recreation is limited to classified waters designated for that use.

(G) Turbidity and Color. Water contaminants shall not cause or contribute to turbidity or color that will cause substantial visible contrast with the natural appearance of the stream or lake or interfere with beneficial uses.

Table A—Criteria for Designated Uses

Pollutant (mg/L) DWS*
Nitrate-N 10

* DWS = Drinking Water Supply

Site-specific Criteria

The information on this tab shows EPA-approved site-specific nutrient criteria for Missouri’s waterbodies. Criteria on this page apply only to the waterbodies listed below. Criteria applicable to all waterbodies within the state are found on the “Statewide Criteria” tab. For more information, refer to the Missouri water quality standards.

The following information reflects Missouri’s water quality standards posted to the Water Quality Standards Repository as of October 2011 (EPA-approved August 2011).

10 CSR 20-7.031 Water Quality Standards

(4) Specific Criteria

(N) Nutrients and Chlorophyll

3. Nutrient criteria for lakes and reservoirs with site-specific criteria are listed in Table M.  

Table M: Lakes with Site-Specific Criteria
Lake Ecoregion Lake County Site-Specific Criteria ug/L)
TP TN Chl
Plains Bowling Green Lake Pike 21 502 6.5
Bowling Green Lake (old) Pike 31 506 5.0
Forest Lake Adair 21 412 4.3
Fox Valley Lake Clark 17 581 6.3
Hazel Creek Lake Adair 27 616 6.9
Lincoln Lake – Cuivre River State Park Lincoln 16 413 4.3
Marie, Lake Mercer 14 444 3.6
Nehai Tonkaia Lake Chariton 15 418 2.7
Viking, Lake Daviess 25 509 7.8
Waukomis Lake Platte 25 553 11.0
Weatherby Lake Platte 16 363 5.1
Ozark
Border
Goose Creek Lake St Francois 12 383 3.2
Wauwanoka, Lake Jefferson 12 384 6.1
Ozark
Highlands
Clearwater Lake Wayne-Reynolds 13 220 2.6
Council Bluff Lake Iron 7 229 2.1
Crane Lake Iron 9 240 2.6
Fourche Lake Ripley 9 236 2.1
Loggers Lake Shannon 9 200 2.6
Lower Taum Sauk Lake Reynolds 9 203 2.6
Noblett Lake Douglas 9 211 2.0
St. Joe State Park Lakes St Francois 9 253 2.0
Sunnen Lake Washington 9 274 2.6
Table Rock Lake Stone 9 253 2.6
Terre du Lac Lakes St Francois 9 284 1.7
Timberline Lakes St Francois 8 276 1.5

 


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