[Code of Federal Regulations]
[Title 40, Volume 22]
[Revised as of July 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR141.33]

[Page 390-391]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 141_NATIONAL PRIMARY DRINKING WATER REGULATIONS--Table of Contents
 
                  Subpart D_Reporting and Recordkeeping
 
Sec.  141.33  Record maintenance.

    Any owner or operator of a public water system subject to the 
provisions of this part shall retain on its premises or at a convenient 
location near its premises the following records:
    (a) Records of microbiological analyses and turbidity analyses made 
pursuant to this part shall be kept for not less than 5 years. Records 
of chemical analyses made pursuant to this part shall be kept for not 
less than 10 years. Actual laboratory reports may be kept, or data may 
be transferred to tabular summaries, provided that the following 
information is included:
    (1) The date, place, and time of sampling, and the name of the 
person who collected the sample;
    (2) Identification of the sample as to whether it was a routine 
distribution system sample, check sample, raw or process water sample or 
other special purpose sample;
    (3) Date of analysis;
    (4) Laboratory and person responsible for performing analysis;
    (5) The analytical technique/method used; and
    (6) The results of the analysis.
    (b) Records of action taken by the system to correct violations of 
primary drinking water regulations shall be kept for a period not less 
than 3 years after the last action taken with respect to the particular 
violation involved.
    (c) Copies of any written reports, summaries or communications 
relating to sanitary surveys of the system conducted by the system 
itself, by a private consultant, or by any local, State or Federal 
agency, shall be kept for a period not less than 10 years after 
completion of the sanitary survey involved.
    (d) Records concerning a variance or exemption granted to the system 
shall be kept for a period ending not less than 5 years following the 
expiration of such variance or exemption.
    (e) Copies of public notices issued pursuant to Subpart Q of this 
part and

[[Page 391]]

certifications made to the primacy agency pursuant to Sec.  141.31 must 
be kept for three years after issuance.
    (f) Copies of monitoring plans developed pursuant to this part shall 
be kept for the same period of time as the records of analyses taken 
under the plan are required to be kept under paragraph (a) of this 
section, except as specified elsewhere in this part.

[40 FR 59570, Dec. 24, 1975, as amended at 65 FR 26022, May 4, 2000; 71 
FR 478, Jan. 4, 2006]