The Civil Servant's Code (Original PDF on .gov) was changed from a sort of "gentleman's agreement" to a legally enforceable duty under the provisions of section 5 (5) of the Constitutional Reform and Governance Act 2010. This action must be assumed to have been taken to give the weight of law to dealing the control of aberrant behaviour on the part of our civil servants.
Astonishingly, this act of parliament does not specify any remedy for Civil Servants who are discovered to be seriously in breach of the Civil Servant's Code - so it is not unreasonable to ask why the time and public funds were essentially wasted on producing a piece of utterly pointless legislation?
Anyway, the Civil Servant's code is summarized here with links to the pdf and Word versions. Contacting the Civil Service Commission is possible via a number of methods outlined on their web site.
We have witnessed and endured the consequences of civil servants repeatedly breaking their code and precipitating the whole morass of financial and legal troubles that have blighted our development at Avoncliff. The public has a very reasonable expectation that the code should guide and inform the activities of those employed at public expense. Some water permitting managers and other officials at the Environment Agency clearly think that this code of conduct doesn't apply to them.
The Environment Agency's own complaints procedures page looks remarkably haphazard, in essence - the only avenues of complaint are via the Local Government Ombudsman and via one's own M.P. - neither of which have any actual power to compel The Environment Agency to do anything - so - they please themslelves it seems.