SAb-I OiEGO REGIONAL LAKE SAN MARCOS CONTROL · PDF fileanalysis method: smeww 4500 nh3 d date...

SAb-I OiEGO REGIONAL EATER QUALI'TY LAKE SAN MARCOS CONTROL BOP.RD

COMMUNITY ASSOCIATIQdaFNov q p 1: b 1145 San Marino Drive, Suite 125

Lake San Marcos, CA 92069 t/f (760) 744-4306 ,----

November 1 3,2001

Leslie Dobalian California Regional Water Quality Control Board 977 1 Clairemont Mesa Blvd., Ste. A San Diego, CA 921 24-1 324

Dear Leslie:

Enclosed is a copy of the laboratory analysis of the water samples taken from lake San Marcos in May, 2001. As far as I can tell, the results of the analysis indicate that everything is in the norrnal range. I would appreciate your reviewing the results and letting me know if there are any areas of concern. You can reach me at (760) 51 0-9684.

Our primary concerns at this time are the poor quality of the water flowing into the Lake and the build-up of sedimentation in the Lake.

Thank you for your assistance, and we would welcome any suggestions you might have for improving the water quality and viability of Lake San Marcos.

; , Yours truly,

Mary Clarke, Chair, Environmental Review Committee

Enclosures ,

August 7,2001

Lake San Marcos Community Assn. Project Name/No.: None Attn: Billy Martin Laboratory Log No.: 1247-01 1 145 San Marino Dr., Ste. 125 Date Received: 05/10/0 1

I Lake San Marcos, California 92069 Sample Matrix: Eight water samples I PO No.: COD

Please find the following enclosures for the referenced project identified:

1 ) Analytical Report 2) QA/QC Report 3) Chain of Custody Form

. . . . . .. . . . .. .. . .. . . .. . . . . . .. . . . . . .. . . ........,. Certified Analysis.. ... . .. . ... .. . .. .. . . . .. .. . .. . .. , .. . . . . . .. Samples were analyzed pursuant to client request utilizing EPA or other E L M approved methodologies. Date of extraction, date of analysis, detection limits and dilution factor are reported for each compound analyzed. All samples were analyzed within the method required holding time for sample collection.

Data for each analytical method was evaluated by assessing the following QA/QC functions, as applicable to the methodology:

' Quality Control Standard ,

Surrogate Percent Recovery Laboratory Control Sample (LCS) percent recoveries for all analyses Matrix Spike Recovery/Matrix Spike Duplicate Recovery (MSR & MSDR) and/or Relative Percent Difference (RPD from MSR & MSDR)

I certzfi thai t h i ~ dots report is in compliance both technically and for completeness. Release of the data contained

I ' . it, this hard copy data report has been authorized by thefollowing signature.

ice PresidentILaboratory Director

5340 Viewridge Avenue, SUI te A Snn Diego, California 921 23 (858) 560-77 17 * Fax (858) 560-7763 Analytical Chemistry Laboratory

ANALYSIS RESULTS - TPH-GASOLINE BY EPA 8015 B TOTAL PETROLEUM HYDROCARBONS

CLIENT: LAKE SAN MARCOS COMMUNITY ASSN. DATE SAMPLED: 05/10/0 1 PROJECT NAMEMo.: NONE DATE RECEIVED: 0511 010 1

DATE ANALYZED: 0511 4/01 MATRIX: WATER

I:

RL = REPORTING LIMITS

DF = DILUTION FACTOR

ND = ANAL'ITE NOT DETECTED AT OR ABOVE THE WDICATED REPORTING LIMIT

REPORTWG LIMITS AND RESULTS HAVE BEEN ADJUSTED ACCORDMGLY TO ACCOUNT FOR DILUTION FACTOR

SURROGATE SPIKE I -BROMO-4-FLUOROBENZENE

G ASIDIESEL

TPH-GASOLINE C6 - C10

RESULTS SAMPLE ID: RL DF PPB (UGJL)

EMA LOG #: % RECOVERY

.------------ 1 METHOD BLANK 1 2 0 I ND

ACCEPTABLE RANGE: 77-1 35

1247-0 1-8 93

2 0 I 29 9 9

ANALYSIS RESULTS - TPH-DIESEL BY EPA 8015 B TOTAL PETROLEUM HYDROCARBONS

CLIENT: L A U SAN MARCOS COMMUNITY ASSN. PROJECT NAMENO.: NONE

DATE SAMPLED: 0511 010 1 DATE RECEIVED: 0511010 1 DATE EXTRACTED: 05/12/01 DATE ANALYZED: 05/13/01

SAMPLE ID:

MATRIX: WATER

RL = REPORTING LIMITS


ND = ANALYTE NOT DETECTED AT OR ABOVE THE INDICATED REPORTING LIMIT

REPORTMG LIMITS AND RESULTS HAVE BEEN ADJUSTED ACCORDINGLY T O ACCOUNT FOR DILUTION FACTOR.

GASAIIESEL

SURROGATE SPIKE 1 -BROMO-4-FLUOROBENZENE

% RECOVERY 115

EMA LOG #:

METHOD BLANK

TPH-DIESEL C10 - C28

RESULTS RL DF PPB (UGL)

500 1 ND

ACCEPTABLE RANGE: 77-1 35

1247-01-1 1 500' 1 ND 13 1

ANALYSIS RESULTS

CLIENT: LAKE SAN MARCOS COMMUNITY ASSN.

DATE SAMPLED: 0510910 \ PROECT NAMEfNo.: NONE DATE RECEIVED; 05/10/0\ ANALYSIS METHOD: SMEWW 4500 NH3 D DATE ANALYZED: 0511 6/0 1 ANALYSIS: AMMONIA AS N MATRIX: WATER:

SAMPLE ID EMA LOG # REPORTING LIMITS DF RESULTS PPM (MGIL) PPM (MGIL)

OUTFALL WATER SAMPLE AMM PHOS 1247-0 1-1 CROSS BRIDGE 1247-01-5 PARK DOCK ' 1247-0 1-7


REPORTING LIMITS AND RESULTS HAVE BEEN ADJUSTED ACCORDWGLY T O ACCOUNT FOR DILUTION FACTOR.

EMA DCN 300-037 (Rev 1101 )

EnviroMatrix @ Analyticnl. 1x10.

ANALYSIS WSULTS


DATE SAMPLED: 05/09/01 PROJECT NAMEMo.: NONE DATE RECEIVED: 0511 010 1 ANALYSIS METHOD: SMEWW 4500 NO3 E DATEANALYZED: 05/11/01 ANALYSIS: NITRATE AS N MATRIX: WATER

SAMPLE ID EMA LOG # REPORTING LIMITS DF RESULTS PPM (MG/L) PPM (MGIL)

OUTFACE 1247-01-6 0.1


REPORTMG LIMITS AND RESULTS HAVE BEEN ADJUSTED ACCORDINGLY TO ACCOUNT FOR DILUTION FACTOR.

ANALYSIS RESULTS


I DATE SAMPLED: 05/09/01 PROJECT NAME/No.: NONE DATE RECEIVED: 0511 010 1

ANALYSIS METHOD: SMEWW 4500 P E DATE ANALYZED: 0511 210 1

ANALYSIS: TOTAL PHOSPHORUS AS P MATRIX: WATER

SAMPLE ID EMA LOG # REPORTING LIMITS DF RESULTS PPM (MGL) PPM ( M G L )

OUTFALL WATER SAMPLE AMM PHOS 1247-0 1-1 0.05 CROSS BRIDGE 1247-0 1-5 0.05 PARK DOCK 1247-0 1-7 0.05


REPORTING LIMITS AND RESULTS WAVE BEEN ADJUSTED ACCORDINGLY TO ACCOUNT FOR DILUTION FACTOR

ANALYSIS RlESULTS


DATE SAMPLED: 05/09/01 ,

PROJECT NAME/No.: NONE DATE RECEIVED: 05/10/01 ANALYSIS METHOD: SMEWW 2540 D DATE ANALYZED: 05/14/01 ANALYSIS: TSS MATRIX: WATER

SAMPLE ID EMA LOG # REPORTING LIMITS DF RESULTS PPM (MGtL) PPM (MGL)

WEST DlSCOVERY BRIDGE 1247-0 1-2 2 0 < LMS SIDE DISCOVERY BRIDGE 1247-0 1-3 20

LMS WAKE BRIDGE 1247-0 1-4 2 0


ND = ANALYTE NOT DETECTED AT OR ABOVE THE INDICATED REPORTMG LIMIT

REPORTING LIMITS AND RESULTS HAVE BEEN ADJUSTED ACCORDINGLY TO ACCOUNT FOR DILUTION FACTOR.

EMA DCN 300-037 (Rev 1/01 )

EnvlroMatrix

ANALYSIS RESULTS

CLIENT: LAKE SAN MARCOS C(3MMUNITY ASSN.

DATESAMPLED: 05/09/01 PROJECT NAME/No.: NONE DATE RECEIVED: 05/10/01 ANALYSIS METHOD: S M E W 2540 C DATE ANALYZED: 0511410 1 ANALYSIS: TDS MATRIX: WATER

SAMPLE ID EMA LOG # REPORTMG LIMITS DF RESULTS PPM (MG/L) PPM (MGIL)

WEST DISCOVERY BRIDGE 1247-0 1-2 LMS SIDE DISCOVERY BRIDGE 1247-0 1-3 LMS, WAKE BRIDGE 1247-01-4


REPORTING LlMITS AND RESULTS HAVE BEEN ADJUSTED ACCORDINGLY TO ACCOUNT FOR DILUTION FACTOR.

QAIQC REPORT

LCS % R = LABORATORY CONTROL SAMPLE PERCENT RECOVERY

LCSD % R = LABORATORY CONTROL SAMPLE DUPLICATE PERCENT RECOVERY

MS % R = MATRIX SPIKE PERCENT RECOVERY

MSD % R = MATRIX SPIKE DUPLICATE PERCENT RECOVERY

RPD = RELATIVE PERCENT DIFFERENCE

r

QAIQC REPORT

METHOD: TPH-EPA 8015B-WATER DATE ANALYZED: 05/14/01 QAIQC SAMPLE: EMA 1247-01 -8

ACCEPTABLE LCS,MS/MSD

CRITERIA 'Yo

75-125 SPIKED ANALYTE GASOLINE

ACCEPTABLE RPD

CRITERIA O/o

<3 0

ACCEPTABLE RPD

CRITERIA Yo

<3 0

ACCEPTABLE LCSLCSD CRITERIA

"/a

75- 125

METHOD: TPH- EPA 801SB-WATER DATE ANALYZED: 05/13/0 1 QA/QC SAMPLE: ' EMA 1247-0 1 -BLANK

LCS % R 124

SPIKED ANALYTE DIESEL

M S % R 1 1 8

LCSD O h R 92

LCS O/o R 7 6

' RPD 19

MSD % R 1 1 1

RPD 7

QNQC REPORT

QAIQC SAMPLE: ERA 99110,99102 DATE ANALYZED: 05/14/01

TV = TRUE VALUE

DV = DETERMINED VALUE

% R = PERCENT RECOVERY

LCS % R = LABORATORY CONTROL SAMPLE PERCENT RECOVERY MS % R = MATRIX SPIKE PERCENT RECOVERY

MSD % R = MATRIX SPIKE DUPLICATE PERCENT RECOVERY

RPD = RELATIVE PERCENT DIFFERENCE

QA/QC REPORT

EMA DCN 300-026 (Rev 1/01)

SPIKED ANALYTE TSS 73s

TV 67.3 263

DV

63.1

270

DATE ANALYZED: 0511 1-16/01

%R 94

103

ACCEPTABLE

LCS,MS/MSD

CRITERIA

Yo 80- 120 80- 120 80- 120

ACCEPTABLE

RPD

CRITERIA

Yo < 20 < 20 < 20

RPD 10 1

6

SPIKED ANALYTE AMMONIA AS N TOTAL PHOSPHORUS AS P NITRATE AS N

LCS % R 116

100

9 3

MS % R 100 93 105

MSD % R 90 94

9 9

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