Summary
Data Anomalies at USGS Site
NW Branch Anacostia River near Hyattsville, MD
State standards: Temperature <= 32.2°C Turbidity <= 150 NTU 6.5 <= pH <=8.5 Dissolved oxygen > 5.0 mg/l
Click on month/year to see details | Site shutdown from Jan 2006 through Jun 2006 for lack of funding | From June 30, 2007, until February 15, 2008, water-quality data collection at this streamgage was discontinued due to funding reductions from local agencies. |
On June 30, 2010 water-quality data collection at this streamgage was discontinued due to funding reductions from local agencies.
Month/Year | pH data in violation / pH data measured | % pH data in violation | Temperature data in violation / Temperature data measured | % Temperature data in violation | Turbidity data in violation / Turbidity data measured | % Turbidity data in violation | Dissolved oxygen data in violation / Dissolved oxygen data measure | % Dissolved oxygen data in violation |
---|---|---|---|---|---|---|---|---|
Jun 2010 | 0 / 2880 | 0% | 0 / 2880 | 0% | 85 / 2880 | 2.95% | 143 / 2880 | 4.96% |
May 2010 | 5 / 2967 | 0.17% | 0 / 2962 | 0% | 74 / 2470 | 3.00% | 0 / 2963 | 0% |
Apr 2010 | 477 / 2873 | 16.60% | 0 / 2450 | 0% | 1 / 2448 | 0.04% | 0 / 2450 | 0% |
Mar 2010 | 79 / 2967 | 2.66% | 0 / 2965 | 0% | 590 / 2939 | 20.07% | 0 / 2967 | 0% |
Feb 2010 | 9 / 2688 | 0.33% | 0 / 2688 | 0% | 0 / 2636 | 0% | 0 / 2688 | 0% |
Jan 2010 | 8 / 2963 | 0.27% | 0 / 2963 | 0% | 0 / 2955 | 0% | 0 / 2960 | 0% |
Dec 2009 | 25 / 2972 | 0.84% | 2 / 2968 | 0.07% | 112 / 2934 | 3.82% | 0 / 2973 | 0% |
Nov 2009 | 5 / 2877 | 0.17% | 0 / 2881 | 0% | 38 / 2870 | 1.32% | 1 / 2873 | 0.03% |
Oct 2009 | 39 / 2586 | 1.51% | 0 / 2556 | 0% | 40 / 2545 | 1.57% | 35 / 2582 | 1.36% |
Sep 2009 | 2 / 2880 | 0.07% | 0 / 2879 | 0% | 1 / 2878 | 0.03% | 0 / 2880 | 0% |
Aug 2009 | 20 / 2972 | 0.67% | 0 / 2966 | 0% | 43 / 2938 | 1.46% | 48 / 2972 | 1.62% |
Jul 2009 | 74 / 2972 | 2.49% | 0 / 2968 | 0% | 5 / 2680 | 0.19% | 15 / 2971 | 0.50% |
Jun 2009 | 19 / 2874 | 0.66% | 17 / 2871 | 0.59% | 172 / 2808 | 6.13% | 0 / 2869 | 0% |
May 2009 | 65 / 2967 | 2.19% | 61 / 2967 | 2.06% | 283 / 2760 | 10.25% | 0 / 2968 | 0% |
Apr 2009 | 14 / 2872 | 0.49% | 0 / 2872 | 0% | 45 / 2833 | 1.59% | 0 / 2872 | 0% |
Mar 2009 | 135 / 2967 | 4.55% | 0 / 2964 | 0% | 66 / 2716 | 2.43% | 0 / 2965 | 0% |
Feb 2009 | 5 / 2684 | 0.19% | 0 / 2683 | 0% | 29 / 2676 | 1.08% | 0 / 2681 | 0% |
Jan 2009 | 17 / 2970 | 0.57% | 0 / 2960 | 0% | 4 / 2922 | 0.14% | 0 / 2970 | 0% |
Dec 2008 | 0 / 1965 | 0% | 0 / 1965 | 0% | 32 / 1880 | 1.70% | 0 / 1963 | 0% |
Nov 2008 | 48 / 2871 | 1.67% | 2 / 2868 | 0.07% | 9 / 2748 | 0.33% | 0 / 2869 | 0% |
Oct 2008 | 0 / 2960 | 0% | 0 / 2963 | 0% | 128 / 2708 | 4.73% | 0 / 2963 | 0% |
Sep 2008 | 0 / 2875 | 0% | 0 / 2876 | 0% | 70 / 2736 | 2.56% | 28 / 2874 | 0.97% |
Aug 2008 | 0 / 2973 | 0% | 0 / 2973 | 0% | 7 / 2927 | 0.24% | 115 / 2973 | 3.87% |
July 2008 | 0 / 2856 | 0% | 0 / 2856 | 0% | 145 / 2769 | 5.24% | 0 / 2856 | 0% |
June 2008 | 0 / 2911 | 0% | 0 / 2911 | 0% | 60 / 2828 | 2.12% | 0 / 2911 | 0% |
May 2008 | 0 / 2980 | 0% | 0 / 2970 | 0% | 102 / 2896 | 3.52% | 0 / 2981 | 0% |
Apr 2008 | 70 / 2301 | 3.04% | 0 / 2288 | 0% | 65 / 2286 | 2.84% | 0 / 2259 | 0% |
Mar 2008 | 3 / 2956 | 0.10% | 0 / 2956 | 0% | 60 / 2889 | 2.08% | 0 / 2956 | 0% |
Jun 2007 | 0 / 2291 | 0% | 0 / 2863 | 0% | 75 / 2630 | 2.85% | 86 / 2856 | 3.01% |
May 2007 | 0 / 2876 | 0% | 0 / 2853 | 0% | 161 / 2888 | 5.57% | 43 / 2888 | 1.48% |
Apr 2007 | 26 / 2876 | 0.90% | 0 / 2876 | 0% | 70 / 2870 | 2.44% | 0 / 2872 | 0% |
Mar 2007 | 0 / 2542 | 0% | 0 / 2542 | 0% | 126 / 2103 | 5.99% | 0 / 2558 | 0% |
Feb 2007 | 0 / 2681 | 0% | 0 / 2683 | 0% | 25 / 2681 | .93% | 0 / 2683 | 0% |
Jan 2007 | 0 / 2973 | 0% | 0 / 2973 | 0% | 2 / 2972 | .06% | 0 / 2973 | 0% |
Dec 2006 | 0 / 2852 | 0% | 0 / 2852 | 0% | 0 / 2826 | 0% | 0 / 2852 | 0% |
Nov 2006 | 0 / 2673 | 0% | 0 / 2566 | 0% | 65 / 2086 | 3.11% | 0 / 2558 | 0% |
Oct 2006 | 0 / 2936 | 0% | 0 / 2896 | 0% | 0 / 2127 | 0% | 0 / 2892 | 0% |
Sep 2006 | 0 / 2311 | 0% | 0 / 2310 | 0% | 2 / 2308 | .09% | 0 / 1610 | 0% |
Aug 2006 | 0 / 3009 | 0% | 0 / 3004 | 0% | 0 / 46 | 0% | 84 / 2976 | 2.82% |
Jul 2006 | 0 / 1315 | 0% | 0 / 1313 | 0% | 0 / 0 | 0% | 0 / 1313 | 0% |
Dec 2005 | 0 / 2976 | 0% | 0 / 2976 | 0% | 1 / 2976 | 0.03% | Not measured | Not measured |
Nov 2005 | 0 / 2880 | 0% | 0 / 2880 | 0% | 7 / 2880 | 0.24% | Not measured | Not measured |
Oct 2005 | 0 / 2976 | 0% | 0 / 2976 | 0% | 166 / 2976 | 5.58% | Not measured | Not measured |
Sep 2005 | 104 / 1618 | 6.43% | 0 / 2496 | 0% | 0 / 2496 | 0% | Not measured | Not measured |
Aug 2005 | 145 / 2976 | 4.87% | 0 / 2976 | 0% | 1 / 2976 | 0.03% | Not measured | Not measured |
Jul 2005 | 1 / 2976 | 0.03% | 0 / 2976 | 0% | 183 / 2976 | 6.15% | Not measured | Not measured |
Jun 2005 | 0 / 2880 | 0% | 0 / 2880 | 0% | 24 / 2880 | 0.83% | Not measured | Not measured |
May 2005 | 0 / 2976 | 0% | 0 / 2976 | 0% | 2 / 2976 | 0.07% | Not measured | Not measured |
Apr 2005 | 116 / 2695 | 4.30% | 0 / 2880 | 0% | 97 / 2880 | 3.37% | Not measured | Not measured |
Mar 2005 | 17 / 2976 | 0.57% | 0 / 2975 | 0% | 294 / 2976 | 9.88% | Not measured | Not measured |
Feb 2005 | 0 / 2302 | 0% | 0 / 2688 | 0% | 0 / 2688 | 0% | Not measured | Not measured |
Jan 2005 | 0 / 2976 | 0% | 0 / 2771 | 0% | 112 / 2976 | 3.76% | Not measured | Not measured |
Dec 2004 | 0 / 2976 | 0% | 0 / 2976 | 0% | 73 / 2976 | 2.45% | Not measured | Not measured |
Nov 2004 | 0 / 1293 | 0% | 0 / 2875 | 0% | 29 / 2880 | 1.01% | Not measured | Not measured |
Oct 2004 | 0 / 435 | 0% | 0 / 2972 | 0% | 0 / 2976 | 0% | Not measured | Not measured |
Sep 2004 | 0 / 2880 | 0% | 0 / 2880 | 0% | 30 / 2880 | 1.04% | Not measured | Not measured |
Aug 2004 | 0 / 2976 | 0% | 0 / 2976 | 0% | 135 / 2976 | 4.54% | Not measured | Not measured |
Jul 2004 | 0 / 2976 | 0% | 0 / 2976 | 0% | 180 / 2976 | 6.05% | Not measured | Not measured |
Jun 2004 | 0 / 2880 | 0% | 0 / 2880 | 0% | 45 / 2880 | 1.56% | Not measured | Not measured |
May 2004 | 0 / 2976 | 0% | 0 / 2976 | 0% | 27 / 2976 | 0.91% | Not measured | Not measured |
Apr 2004 | 85 / 2880 | 2.95% | 0 / 2880 | 0% | 74 / 2880 | 2.57% | Not measured | Not measured |
Mar 2004 | 8 / 2502 | 0.32% | 0 / 2976 | 0% | 15 / 2976 | 0.50% | Not measured | Not measured |
Feb 2004 | 0 / 2304 | 0% | 0 / 2304 | 0% | 71 / 2304 | 3.08% | Not measured | Not measured |