Rio Grande Stormwater and Finished Drinking Water Sampling Events
Updated 11-3-2011
Date Time Storm Event Origination Ash Event Samples Collected Analyses Requested Results
ND = not detected
metals= Ag, Al, As, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Mg, Mn, Na, Ni, Pb, Sb, Se, Tl, U, V, and Zn
radiologicals = gross alpha, gross beta, Am241, Cs137, Co60, K40, Na22, Np237, Pu238, Pu239/Pu240, Ra226, Ra228, Ra226/Ra228, Sr90, U234, U235/U236, and U238
Results exceeding Safe Drinking Water Act (SDWA) standards are underlined.
07/15/11 11:25 Santa Clara Canyon (presumed) Yes Yes total and dissolved Cs137, Sr90, Pu238, Pu239/240 Radiologicals: ND
07/22/11 23:34 ENS - Guaje Canyon Yes Yes LANL MOU*, VOCs** PCBs: 0.000000088 ppm
Dioxins: ND
Furans: ND
Radiologicals (unfiltered): gross alpha 4.80 pCi/L, gross beta 8.44 pCi/L, Am241 0.0252 pCi/L, Co60 26.7 pCi/L, Cs137 269 pCi/L, K40 784 pCi/L, Na22 ND, Np237 ND, Pu238 ND, Pu239/Pu240 ND, Ra226 ND, Ra228 ND, Ra226/Ra228 1.37 pCi/L, Sr90 1.80 pCi/L, U234 51.4 pCi/L, U235/U236 1.88 pCi/L, U238 59.4 pCI/L Ra226/Ra228 1.37 pCi/L
Radiologicals (filtered): gross alpha ND, gross beta ND, Am241 ND, Cs137 ND, Co60 ND, K40 ND, Na22 ND, Np237 ND, Pu238 ND, Pu239/Pu240 ND, Ra226 ND, Ra228 2.38 pCi/L, Ra226/Ra228 2.47 pCi/L, Sr90 ND, U234 ND, U235/U236 ND, U238 ND
Metals (unfiltered): Ag ND, Al 5.28 ppm, As 0.00246 ppm, Ba 0.182 ppm, Be 0.000401 ppm, Ca 41 ppm, Cd 0.00017 ppm, Co 0.00147 ppm, Cr 0.032 ppm, Cu 0.0076 ppm, Fe 3.1 ppm, Hg ND, K 3.72 ppm, Mg 6.81 ppm, Mn 0.427 ppm, Na 13 ppm, Ni 0.00469 ppm, Pb 0.00679 ppm, Se ND, Tl ND, U 0.00143 ppm, V 0.00947 ppm, Zn 0.0294 ppm
Metals (filtered): Ag ND, Al 0.0528 ppm, As 0.00182 ppm, Ba 0.0625 ppm, Be ND, Ca 35 ppm, Cd ND, Co ND, Cr ND, Cu ND, Fe ND, Hg ND, K 2.39 ppm, Mg 5.56 ppm, Mn ND, Na 12.5 ppm, Ni 0.0011 ppm, Pb ND, Se ND, Tl ND, U 0.00143 ppm, V 0.00947 ppm, Zn ND
Perchlorates: 0.0000986 ppm
VOCs: (pending)
07/25/11 18:43 Santa Clara Canyon (presumed) No Yes gross alpha, gross beta, metals***, VOCs, alkalinity  
07/26/11 8:48 Santa Clara Canyon (presumed) Yes Yes gross alpha, gross beta, metals, VOCs, alkalinity Radiologicals (unfiltered): gross alpha 2.17 pCi/L, gross beta 2.77 pCi/L
Metals (unfiltered): Al 6.3 ppm, As 0.003 ppm, Ba 0.17 ppm, Be 0.00043 ppm, Ca 39 ppm, Cd ND, Cr 0.0046 ppm, Cu 0.0063 ppm, Fe 4.1 ppm, Hg ND, Mg 7.3 ppm, Mn 0.3 ppm, Ni 0.0034 ppm, Pb 0.0056 ppm, Sb ND, Se ND, all others not tested
VOCs: ND
Alkalinity: 92 ppm
07/27/11 4:06 Santa Clara Canyon (presumed) No Yes gross alpha, gross beta, metals, VOCs, alkalinity Radiologicals (unfiltered): gross alpha 5.65 pCi/L, gross beta 9.16 pCi/L
Metals (unfiltered): Al 41 ppm, As 0.0057 ppm, Ba 0.49 ppm, Be 0.0024 ppm, Ca 69 ppm, Cr 0.012 ppm, Cu 0.022 ppm, Fe 16 ppm, Hg ND, Mg 20 ppm, Mn 0.84 ppm, Ni 0.018ppm, Pb 0.0095 ppm, Sb ND, Se ND, all others not tested
VOCs: ND
Alkalinity: 96 ppm
07/28/11 2:06 Santa Clara Canyon (presumed) Yes Yes gross alpha, gross beta, metals, VOCs Radiologicals (unfiltered): gross alpha ND, gross beta 5.20 pCi/L
Radiologicals (filtered): gross alpha ND, gross beta 2.75 pCi/L
Metals (unfiltered): Al 6 ppm, Be ND, Ca 39 ppm, Fe 3.7 ppm, Mg 6.8 ppm, Mn 0.42 ppm, Ni 0.003 ppm, all others not tested
VOCs: ND
07/28/11 17:36 ENS - Guaje Canyon Yes Yes LANL MOU, VOCs, cyanide, nitrate, alkalinity PCBs: 0.000000618 ppm
Dioxins: ND
Furnans: ND
Radiologicals (unfiltered): gross alpha 13.2 pCi/L, gross beta 7.42 pCi/L, Am241 0.115 pCi/L, Cs137 6.59 pCi/L, Co60 5.64 pCi/L, K40 ND, Na22 ND, Np237 ND, Pu238 ND, Pu239/Pu240 0.216 pCi/L, Ra226 2.14 pCi/L, Ra228 2.41 pCi/L, Ra226/Ra228 4.55 pCi/L, Sr90 1.16 pCi/L, U234 2.99 pCi/L, U235/U236 0.158 pCi/L, U238 2.88 pCi/L
Radiologicals (filtered): gross alpha ND, gross beta 3.13 pCi/L, Am241 ND, Cs137 ND, Co60 ND, K40 ND, Na22 ND, Np237 ND, Pu238 ND, Pu239/Pu240 ND, Ra226 0.841 pCi/L, Ra228 ND, Ra226/Ra228 1.77 pCi/L, Sr90 0.980 pCi/L, U234 0.874 pCi/L, U235/U236 ND, U238 0.682 pCi/L
Metals (unfiltered): Ag ND, Al 7.38 ppm, As 0.00318 ppm, Ba 0.201 ppm, Be 0.00049 ppm, Ca 39 ppm, Cd 0.00054 ppm, Co 0.00299 ppm, Cr 0.00057 ppm, Cu 0.00758 ppm, Fe 4.4 ppm, Hg ND, K 4.21 ppm, Mg 6.97 ppm, Mn 0.566 ppm, Na 14 ppm, Ni 0.00577 ppm, Pb 0.0106 ppm, Sb 0.00318 ppm, Se ND, U 0.00182 ppm, V 0.0113 ppm, Zn 0.032 ppm
Metals (filtered): Ag ND, Al 0.0481 ppm, As 0.00196 ppm, Ba 0.0587 ppm, Be ND, Ca 32 ppm, Cd ND, Co ND, Cr ND, Cu 0.00095 ppm, Fe ND, Hg ND, K 2.34 ppm, Mg 5.31 ppm, Mn 0.00504 ppm, Na 12.7 ppm, Ni 0.00109 ppm, Pb ND, Sb 0.00196 ppm, Se ND, U 0.00133 ppm, Tl ND, U ND, V 0.00138 ppm, Zn ND
Perchlorates: 0.0000957 ppm
VOCs: ND
Cyanides: ND
Nitrates: (pending)
Alkalinity: 93 ppm
07/29/11 1:10 Santa Clara Canyon presumed) Yes Yes gross alpha, gross beta, metals, VOCs Radiologicals (unfiltered): gross alpha ND, gross beta ND
Radiologicals (filtered): gross alpha ND, gross beta ND
Metals (unfiltered): Al 6 ppm, Ca 39, Fe 3.7 ppm, Mg 6.8 ppm, Mn 0.42 ppm, Ni 0.003 ppm, all others not tested
VOCs: ND
07/29/11 8:20 Santa Clara Canyon (presumed) Yes Yes gross alpha, gross beta, metals, VOCs Radiologicals (unfiltered): gross alpha ND, gross beta 1.26 pCi/L
Radiologicals (filtered): gross alpha ND, gross beta ND
Metals (unfiltered): Al 5.2 ppm, Ca 38, Fe 3.4 ppm, Mg 6.7 ppm, Mn 0.24 ppm, Ni 0.0023 ppm, all others not tested
VOCs: ND
07/30/11 7:00 unknown No Yes gross alpha, gross beta, metals, VOCs, Cyanide, Nitrate, Nitrite, alkalinity Radiologicals (unfiltered): gross alpha 71 pCi/L, gross beta 74 pCi/L
Radiologicals (filtered): gross alpha ND, gross beta ND
Metals (unfiltered): Al 100 ppm, Ba 0.97 ppm, Be 0.0071 ppm, Ca 39, Cd ND, Co 0.04 ppm, Cu 0.043 ppm, Fe 53 ppm, Hg 0.00016 ppm, Mg 47 ppm, Mn 2.3 ppm, Na 13 ppm, Ni 0.04 ppm, Se 0.00082 ppm, Zn 0.17 ppm, all others not tested
VOCs: ND
Cyanides: ND
Nitrates: 0.11 ppm
Nitrites: ND
Alkalinity: (pending)
08/01/11 5:00 unknown No Yes gross alpha, gross beta, metals, VOCs, Cyanide, nitrate, nitrite, alkalinity Radiologicals (unfiltered): gross alpha 10.4 pCi/L, gross beta 5.42 pCi/L
Radiologicals (filtered): gross alpha 1.35pCi/L, gross beta 4.02 pCi/L
Metals (unfiltered): Al 91 ppm, As 0.0084, Ba 0.91 ppm, Be 0.0057 ppm, Ca 140 ppm, Cd ND, Cr 0.037 ppm, Cu 0.042 ppm, Fe 53 ppm, Hg 0.00012 ppm, Mg 39 ppm, Mn 2 ppm, Na 12 ppm, Ni 0.039 ppm, Se ND, Zn 0.15 ppm, all others not tested
VOCs: ND
Cyanides: ND
Nitrates: 0.16 ppm
Nitrites: ND
Alkalinity: (pending)
08/03/11 16:15 ENS - Guaje Canyon Yes Yes LANL MOU, VOCs, cyanide, nitrate, alkalinity PCBs: 0.00000134 ppm
Dioxins: ND
Furans: ND
Radiologicals (unfiltered): gross alpha 10.9 pCi/L, gross beta 4.4 pCi/L, Am241 0.385 pCi/L, Cs137 34.4 pCi/L, Co60 ND, K40 ND, Na22 ND, Np237 ND, Pu238 ND, Pu239/Pu240 1.81 pCi/L, Ra226 7.74 pCi/L, Ra228 14.2pCi/L, Ra226/Ra228 21.9 pCi/L, Sr90 8.92 pCi/L, U234 12.1 pCi/L, U235/U236 0.911 pCi/L, U238 11.4 pCi/L
Radiologicals (filtered): gross alpha ND, gross beta 3.85 pCi/L, Am241 ND, Cs137 ND, Co60 ND, K40 ND, Na22 ND, Np237 ND, Pu238 ND, Pu239/Pu240 0.584 pCi/L, Ra226 0.681 pCi/L, Ra228 ND, Ra226/Ra228 1.08 pCi/L, Sr90 1.27 pCi/L, U234 1.77 pCi/L, U235/U236 0.0997 pCi/L, U238 1.45 pCi/L
Metals (unfiltered): Ag, ND, Al 3.92 ppm, As 0.00294 ppm, Ba 0.126 ppm, Be 0.000342 ppm, Ca 35 ppm, Cd ND, Co ND, Cr 0.0035 ppm, Cu 0.00484 ppm, Fe 2 ppm, Hg ND, K 3.46 ppm, Mg ppm, Mn 0.294 ppm, Na 15 ppm, Ni 0.00416 ppm, Pb 0.00551 ppm, Sb 0.00271 ppm, Se ND, Tl ND, U 0.00183 ppm, V 0.00724 ppm, Zn 0.0157 ppm
Metals (filtered): Ag ND, Al 0.0528 ppm, As 0.00248 ppm, Ba 0.679 ppm, Be ND, Ca 32 ppm, Cd ND, Co ND, Cr ND, Cu 0.00115 ppm, Fe ND, Hg ND, K 2.68 ppm, Mg 5.32 ppm, Mn 0.0036 ppm, Na15.2 ppm, Ni 0.00136 ppm, Pb ND, Sb 0.00271 ppm, Se ND, Tl ND, U 0.00138 ppm, V 0.00418 ppm, Zn ND
Perchlorates: 0.0000838 ppm
VOCs: (pending)
Cyanides: 0.01 ppm
Nitrates: ND
Alkalinity: 94 ppm
08/03/11 15:28 Finished Drinking Water (FWT) No Yes SDWA parameters passed all SDWA Standards
08/05/11 10:50 Santa Clara Canyon (presumed) yes yes gross alpha, gross beta, metals, VOCs, cyanide, nitrate, nitrite, alkalinity Radiologicals (unfiltered): gross alpha 7.38 pCi/L, gross beta 9.03 pCi/L
Radiologicals (filtered): gross alpha ND, gross beta 4.16 pCi/L
Metals (unfiltered): Al 22 ppm, Be 0.0033 ppm, Ca 70, Cd ND, Cr 0.014 ppm, Cu 0.027 ppm, Fe 15 ppm, Hg ND, Mg 11 ppm, Mn 2.2 ppm, Ni 0.01 ppm, Pb 0.05 ppm, Se 0.0015 ppm ,Zn 0.13 ppm, all others not tested
VOCs: ND
Cyanides: 0.01 ppm
Nitrates: ND
Nitrites: ND
08/05/11 16:24 ENS - Guaje Canyon Yes Yes LANL MOU, VOCs, cyanide, nitrate, alkalinity PCBs: (pending)
Dioxin: (pending)
Radiologicals: (pending)
Metals: (pending)
Perchlorates: (pending)
VOCs: (pending)
Cyanides: (pending)
Nitrates: (pending)
Alkalinity: (pending)
08/18/11 0:30 unknown No Yes gross alpha, gross beta, metals, VOCs, cyanide, nitrate, nitrite, alkalinity Radiologicals: (pending)
Metals: (pending)
Perchlorates: (pending)
VOCs: (pending)
Cyanides: (pending)
Nitrates: (pending)
Alkalinity: (pending)
08/19/11 21:10 unknown No Yes gross alpha, gross beta, metals, VOCs, cyanide, nitrate, nitrite, alkalinity Radiologicals: (pending)
Metals: (pending)
Perchlorates: (pending)
VOCs: (pending)
Cyanides: (pending)
Nitrates: (pending)
Nitrites: (pending)
Alkalinity: (pending)
08/21/11 17:29 ENS - Guaje Canyon Yes Yes LANL MOU, VOCs, cyanide, nitrate, alkalinity PCBs: 0.0000384 ppm
Dioxins: (not available)
Furans: (not available)
Radiologicals (filtered): gross alpha 953 pCi/L, gross beta 1430 pCi/L, (individual radionuclides pending)
Radiologicals (unfiltered): gross alpha 5.39 pCi/L, gross beta ND, Am241, Cs137, Co60, K40 66.1 pCi/L, Na22, Np237, Pu238, Pu239/Pu240, Ra226, Ra228 3.69 pCi/L, Ra226/Ra228 4.19 pCi/L, Sr90, U234 2.24 pCi/L, U235/U236 0.0929 pCi/L, U238 1.91 pCi/L
Metals: (unfiltered): Ag 0.00176 ppm, Al 622 ppm, As 0.0725 ppm, Ba 8.99 ppm, Be 0.0485 ppm, Ca 1260 ppm, Cd 0.0103 ppm, Co 0.227 ppm, Cr 0.39 ppm, Cu 0.39 ppm, Fe 408 ppm, Hg ND, K 134 ppm, Mg 231 ppm, Mn 324 ppm, Na 24.5 ppm, Ni 0.481 ppm, Pb 0.56 ppm, Sb 0.0015 ppm, Se, Tl 0.00639 ppm, U 0.0903 ppm, V 0.392 ppm, Zn 1.83 ppm.
Metals (filtered): Ag, Al 5.21 ppm, As 0.00793 ppm, Ba 1.52 ppm, Be 0.00031 ppm, Ca 42.7 ppm, Cd, Co 0.00456 ppm, Cr 0.00436 ppm, Cu 0.0094 ppm, Fe 3.35 ppm, Hg, K 10.1 ppm, Mg 5.71 ppm, Mn 0.328 ppm, Na 15.5 ppm, Ni 0.00477 ppm, Pb 0.00318 ppm, Sb, Se, Tl, U 0.00401 ppm, V 0.012 ppm, Zn 0.014 ppm
Perchlorates: (pending)
VOCs: (pending)
Cyanides: (pending)
Nitrates: (pending)
Alkalinity: (pending)
08/24/11 15:01 BASELINE STUDY N/A Yes LANL MOU, cyanide, nitrate, alkalinity Radiologicals: (pending)
Metals: (pending)
Perchlorates: (pending)
Cyanides: ND
Nitrates: (pending)
Alkalinity: 110 ppm
08/26/11 18:14 ENS - Guaje Canyon Yes Yes LANL MOU, VOCs, cyanide, nitrate, alkalinity PCBs: (pending)
Dioxins: (pending)
Furans: (pending)
Radiologicals: (pending)
Metals: (pending)
Perchlorates: (pending)
Cyanides: ND
Nitrates: (pending)
Alkalinity: 99 ppm
08/27/11 16:51 ENS -Guaje Canyon Yes Yes LANL MOU, VOCs, cyanide, nitrate, alkalinity PCBs: (pending)
Dioxins: (pending)
Furans: (pending)
Radiologicals: (pending)
Metals: (pending)
Perchlorates: (pending)
VOCs: (pending)
Cyanides: ND
Nitrates: (pending)
Alkalinity: 110 ppm
08/30/11 11:26 Finished Drinking Water (BS 5A) N/A Yes gross alpha, gross beta
Passed SDWA Standards
Radiologicals: gross alpha 3 pCi/L, gross beta 6.8 pCi/L
09/01/11 18:09 ENS -Guaje Canyon Yes Yes LANL MOU, VOCs, cyanide, nitrate, alkalinity PCBs: (pending)
Dioxins: (pending)
Furans: (pending)
Radiologicals: (pending)
Metals: (pending)
Perchlorates: (pending)
VOCs: (pending)
Cyanides: (pending)
Nitrates: (pending)
Alkalinity: (pending)
09/04/11 19:55 ENS -Guaje Canyon Yes Yes LANL MOU, VOCs, cyanide, nitrate, alkalinity PCBs: (pending)
Dioxins: (pending)
Furans: (pending)
Radiologicals: (pending)
Metals: (pending)
Perchlorates: (pending)
VOCs: ND
Cyanides: 0.039 ppm
Nitrates: ND
Alkalinity: 170 ppm
non-LANL, non-ash event          
non-LANL, ash event          
ENS event            
Finished Drinking Water          
*LANL MOU = filtered & unfiltered: gross alpha, gross beta, gross gamma, Sr90, Am241, Cs137, Co60, Na22, Np237, K40, P(iso), U(iso), Ra226, Ra228
metals (Ca, K, Mg, Al, Na, Ag, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Cd, Sb, Ba, Tl, Pb, Bo, U, Hg)
TDS
unfiltered: SSC, Particle size, TOC, Perchloate, Dioxins - Furans, PCBs, PCB (congener)
**VOCs = Volatile Organic Compounds
***metals = Al, As, Ba, Be, Ca, Cd, Cr, Cu, Fe, Hg, K, Mg, Mn, Ni, Pb, Sb, Se, Tl